The E989 collaboration has published the most precise measurement of the muon anomalous magnetic moment $a_\mu$ with an uncertainty of $\mathrm{460\,ppb}$ in 2021. The new experimental world average of $a_\mu$ deviates by 4.2 standard deviations from the Standard Model prediction provided by the Muon g-2 Theory Initiative. The emerging results from ab-initio lattice QCD calculations allow to...
The 3D parton structure of strongly interacting systems is encoded in generalized and transverse-momentum-dependent parton distributions. We discuss the status of this very active research field and identify open questions. This includes a brief discussion of the overarching 5D partonic Wigner functions and the prospects of related studies at the future electron ion collider (EIC).
The development of a TeV-scale muon accelerator and storage ring provides enormous scientific potential not only for a mu+mu- collider, but also for deep inelastic scattering in a completely new regime when a TeV muon beam is collided with a hadron beam. For example, if the approved Electron-Ion Collider at BNL were eventually upgraded with a TeV muon beam replacing its low energy electron...
We are presenting our ongoing lattice QCD study on $B - \bar{B}$ mixing on several RBC/UKQCD and JLQCD ensembles with 2+1 dynamical-flavour chirally symmetric domain wall fermions, including physical-pion-mass ensembles. The inverse lattice spacings range from a coarse 1.7 GeV to a very fine 4.5 GeV, allowing us to simulate near the b-quark mass. We extract bag parameters $B_{B_d}$ and...
LUX-ZEPLIN (LZ) is a low-background, multi-detector dark matter experiment centered on a time projection chamber (TPC) utilizing a 7 t liquid xenon target to observe dark matter interactions. It is currently being operated 4850 ft underground at the Sanford Underground Research Facility (SURF) in Lead, South Dakota. In this talk, I will give an overview of the LZ project and present an...
The Cosmic Microwave Background (CMB) provides us both with a snapshot of the early Universe and with a backlight that illuminates all the later-developing structure. The statistics of this light provide an avenue to detect beyond-the-standard-model physics from inflationary gravitational waves or light relic particles. The growth of large-scale structure, measured by gravitational lensing...
The PIONEER experiment [1] will investigate rate pion decays and aims to measure the branch-
ing ratio $R_{e/μ} ≡ Γ(π^+ → e^+ν(γ))/Γ(π^+ → μ^+ν(γ))$ with a precision of 0.01 % in its first phase.
This marks an improvement by an order of magnitude with respect to the current experimental
uncertainty and would match the uncertainties of the theoretical predictions. This allows to test
lepton...
The proposed Electron-Ion Collider (EIC) will utilize high-luminosity high-energy electron+proton ($e+p$) and electron+nucleus ($e+A$) collisions to solve several fundamental questions including searching for gluon saturation and studying the proton/nuclear structure. Advanced detector technologies, such as the low material budget fine spatial resolution Monolithic Active Pixel Sensor (MAPS),...
Precision measurements from long-baseline neutrino experiments are revealing details about neutrino interactions, masses, and mixing properties. The NOvA experiment employs a 14-kiloton liquid scintillator detector to collect neutrinos after an 800-kilometer journey from Fermilab to northern Minnesota. With a growing collection of neutrino events, NOvA is extending its reach into the...
Understanding the nature of Dark Matter (DM) is one of the open issues in modern physics. In this context, XENON project aims to lead the effort on DM direct detection using ton-scale xenon dual-phase time projection chamber technology, operating in a low background environment. The status of XENONnT detector, running at the underground LNGS (L'Aquila, Italy) laboratories, will be shown. The...
Limits on the charged lepton flavor violating (CLFV) process of $\mu\rightarrow e$ conversion are expected to improve by four orders of magnitude due to the next generation of experiments, Mu2e at Fermilab and COMET at J-PARC. While the kinematics of the decay of a trapped muon are ideal for detecting a signal of CLFV, the intervening nuclear physics presents a significant roadblock to the...
Gravitational lensing of the cosmic microwave background is a powerful probe of the distribution of matter in the post-recombination Universe. Combining CMB lensing with galaxy surveys at different redshifts provides a tomographic view of the growth of structure, improving cosmological constraints. Using Planck CMB lensing and unWISE infrared galaxies, we find $S_8 \equiv \sigma_8...
Ultra-peripheral collisions (UPC) are events characterised by large impact parameters between the two projectiles, larger than the sum of their radii. In UPCs, the protons and ions accelerated by the LHC do not interact via the strong interaction and can be regarded as sources of quasireal photons.
Vector meson (e.g. \jpsi and \psip) photoproduction in UPC is quite interesting since it is...
Daya Bay is an international neutrino reactor experiment in southern China. Eight identical gadolinium-doped liquid scintillator detectors located in three experimental halls at different distances from 360 m to 1900 m from the nuclear power plant reactors have collected a unique sample of more than 5.5 million electron-antineutrino interactions between 2011 and 2020. The high-precision...
The XENONnT experiment, located at the INFN Laboratori Nazionali del Gran Sasso (LNGS) in Italy, uses a dual-phase xenon time projection chamber with a liquid xenon target of 5.9 tonnes. The electronic recoil (ER) background in the (1, 30) keV region is measured to be (16.1±1.3) events/(tonne×year×keV), five times lower than that in XENON1T and the lowest ever achieved in a dark matter...
Lepton-flavor-violating decays of light pseudoscalars, $P=\pi^0,\eta,\eta'\to\mu e$, are stringently suppressed in the Standard Model up to tiny contributions from neutrino oscillations, so that their observation would be a clear indication for physics beyond the Standard Model. However, in effective field theory such decays proceed via axial-vector, pseudoscalar, or gluonic operators, which...
In the past decade, experimental neutrino physics has evolved to be one of the most exciting and rapidly growing fields of scientific research. In particular, the discovery of neutrino oscillations is a significant step towards understanding whether neutrinos violate the CP-symmetry. Deep Underground Neutrino Experiment (DUNE) and Hyper-Kamiokande are two long-baseline neutrino experiments...
A rich set of new results from the LHCb experiment are reported. Searches of CP violations in the beauty and charm sector have been performed with a variety of techniques offering new insights into the CP violation phenomenon. In this presentation, an updated status of charm-mixing parameters is also given. These measurements are of great importance to test the Standard Model's assumptions and...
On behalf of the ZEUS Collaboration.
The azimuthal decorrelation angle between the leading jet and scattered lepton in deep inelastic scattering is being studied in the ZEUS detector at HERA. The data was taken in the HERA II data-taking period and corresponds to an integrated luminosity of 330 pb−1. Azimuthal angular decorrelation has been proposed to study the Q2 dependence of the...
LUX-ZEPLIN (LZ) is a direct dark matter detection experiment aiming to detect rare events resulting from the scattering of Weakly Interacting Massive Particles (WIMPs). It employs a dual-phase xenon time projection chamber (TPC) with an active mass of 7 tonnes (5.6 tonne fiducial), surrounded by an instrumented xenon skin and liquid scintillator active vetoes. Significant effort has been made...
The AlCap experiment is set to measure comprehensive details of charged particles, photons and neutrons emitted after nuclear muon capture in Al and Ti at PSI, Switzerland. For photons, a high purity Ge detector was used to capture the spectra from these targets. In addition to those targets, measurements were made on W, Pb, stainless steel, poly and mylar to check for possible interferences...
Future cosmological observatories, such as CMB-S4, the Thirty Meter Telescope, and the Vera Rubin Observatory, will give the highest precision data on the universe ever measured. The convolution of this data may allow theorists to posit new Beyond Standard Model (BSM) physics in operation during earlier phases of the universe. In the work presented here, we focus on the transition of...
Gravitational waves from black holes and neutron stars are standard candles, the only input needed to infer their luminosity distance being Einstein's general theory of relativity. Combined with follow-up electromagnetic observations to measure the redshift of their hosts will provide a precision tool for calibration-free cosmology. Over the next decade we can expect the current generation of...
The Electron-Ion Collider (EIC), to be built at Brookhaven National Lab within this decade, will provide high-precision access to the gluon and sea-quark dominated region of the nucleon. With luminosities of 10$^{33-34}$ cm$^{-2}$s$^{-1}$, centre of mass energies 20-140 GeV, highly polarised electron and proton / light-ion beams and hermetic detectors, the collider will enable measurements of...
Measurements of the fundamental properties of the Higgs boson are presented, including its mass, width, and the CP properties of its coupling in various production modes and decay channels.
Despite its abundance, little is known about the particle nature of dark matter. Liquid argon-based detectors deployed in underground laboratories are powerful probes for direct detection dark matter searches, due to their scalability to large target masses, the low price of argon, their strong particle identification power using pulse shape discrimination to separate electronic and nuclear...
Flavor-violating processes in the lepton sector have highly suppressed branching ratios in the standard model, mainly due to the tiny neutrino mass. This means that observing lepton flavor violating processes, such as muonium-antimuonium oscillations, in the next round of experiments would indicate the presence of physics beyond the standard model (BSM). We review theoretical calculations of...
Tens of MeV neutrinos, e.g. from the stopped pion or core-collapse supernova sources, scatter off the target nucleus in the detector either via a coherent elastic or the inelastic process and allow the study of a variety of SM and BSM processes. The precision of the coherent elastic neutrino nucleus scattering (CEvNS) process, where the scattered nucleus remains in its ground state, is limited...
With its excellent energy resolution and ultra-low backgrounds, the high-purity germanium detectors in the Majorana Demonstrator enable several searches for beyond the Standard Model physics. These range from the primary neutrinoless double beta decay search to searches for several classes of exotic dark matter models, axions, and tests of quantum mechanical conservation laws. In this talk,...
The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to make a precision mass measurement of the neutrino by leveraging the kinematics of tritium beta decay. High-precision spectroscopy is performed near the endpoint at 18.6 keV by employing a windowless gaseous tritium source combined with a MAC-E filter technique as an electron spectrometer. Being complementary to the search for...
In this talk we present an overview of the state-of-the-art extractions of unpolarized and helicity parton distribution functions (PDFs). These analyses include the latest data from the Large Hadron Collider and Relativistic Heavy Ion Collider, providing new information and new levels of precision on the PDFs.
The Fermilab E989 Muon g-2 experiment is a precise measurement of the muon anomalous magnetic moment $a_{\mu}$ by detecting decays of muons stored in a ring. The first result of the E989 Muon g-2 experiment, with $a_{\mu}$ uncertainty of 460 ppb, deviated by 4.2 standard deviations from the Standard Model theory prediction. The goal of E989 is to reach the precise of 140 ppb in $a_{\mu}$. Two...
The MAJORANA DEMONSTRATOR experiment searches for neutrinoless double-beta decay (0νββ) in 76Ge using p-type point contact (PPC) high purity germanium (HPGe) detectors. The data-taking for 0νββ by the DEMONSTRATOR has successfully completed in March 2021. The DEMONSTRATOR has developed traditional pulse-shape-based approaches to discriminate different types of events, such as multi-site (MS)...
The muon anomalous magnetic moment $(g-2)_{\mu}$ and the electric dipole moment are sensitive to new physics beyond the Standard Model (SM). There is a discrepancy between the Standard Model prediction for the $(g-2)_{\mu}$ and the values measured by the E821 collaboration at Brookhaven National Laboratory (BNL) and E989 collaboration at Fermilab at the more than $4 \sigma$ level. This may...
Several experimental measurements of $b$-decays have suggested the presence of physics beyond the Standard Model (BSM). One set of such measurements are the decay modes $B\to D^{*+}\ell^- \bar{\nu}$ with $\ell = e, \mu,$ and $\tau$. A recent analysis of 2019 Belle data found $\Delta A_{FB} = A_{FB}(B\to D^{*} \mu\nu) - A_{FB} (B\to D^{*} e \nu)$ to be
$4.1\sigma$ away from the SM prediction....
The Relativistic Heavy Ion Collider (RHIC) has been serving the community as the first and only polarized proton-proton ($pp$) collider in the world, providing unique perspectives on the inner structure of the proton.
In particular, $W$ bosons produced at RHIC are used to probe the light flavor structure in the proton.
At leading order, $W$ bosons arise in $pp$ collisions via Drell-Yan...
The LUX-ZEPLIN (LZ) detector consists of 7 tonnes (5.6 tonnes fiducial) of liquefied xenon in a
dual-phase Time Projection Chamber (TPC), which is sensitive to the nuclear and electron recoils
induced by Weakly Interacting Massive Particles (WIMPs). Among the various type of background
particles, neutrons pose a great threat to the WIMPs searches due to the indistinguishable...
The LEGEND (Large Enriched Germanium Experiment for Neutrinoless Double-beta decay) project will search for neutrinoless double-beta decay in $^{76}$Ge, aiming to operate at the ton-scale in its second phase (LEGEND-1000). LEGEND uses liquid argon as an active veto and as a radiopure bulk shield. Penetrating cosmic ray muons can cause showers in liquid argon, generating free neutrons which can...
The Gupta-Meyer treatment of nuclei with long-lived isomers computes the effective internal equilibration rate by assuming that the higher-lying nuclear levels, through which the ground and isomeric states communicate, are in steady-statel [1]. The effective rate for transition between the ensemble of states associated with the ground state and the ensemble of states associated with the...
Recent CMS results on Higgs physics are presented
On behalf of the H1 and ZEUS Collaborations.
Eur. Phys. J. C82 (2022) 243
The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of theHERA data on inclusive deep inelasticepscattering together with jet data as published bythe H1 and ZEUS collaborations. A perturbative...
We present the recent lattice QCD computation of the hadronic vacuum polarization by the Budapest-Marseille-Wuppertal collaboration. We will also discuss ongoing improvements.
Potassium-40 ($^{40}$K) is a naturally-occurring, radioactive isotope impacting understanding of nuclear structure, geological ages spanning timescales as old as the Earth, and rare-event searches including those for dark matter and neutrinoless double beta decay. In many advancing fields, the accelerating precision required for new discoveries has been limited by knowledge of the $^{40}$K...
Project 8 is an experiment that seeks to determine the electron-weighted neutrino mass via the precise measurement of the electron energy in beta decays, with a sensitivity goal of $40\,\mathrm{meV/c}^2$. We have developed a technique called Cyclotron Radiation Emission Spectroscopy (CRES), which allows single electron detection and characterization through the measurement of cyclotron...
Starting from the Weinberg formalism for the construction of fields for arbitrary spin, we propose an algorithm for the construction of the independent operators that enter the scattering amplitude associated with electromagnetic observables. This procedure is useful for the systematic study of the structure of hadrons and nuclei. In particular, it is very convenient in the case of...
In the Standard Model, the ground state of the Higgs field is not found at zero but instead corresponds to one of the degenerate solutions minimising the Higgs potential. In turn, this spontaneous electroweak symmetry breaking provides a mechanism for the mass generation of nearly all fundamental particles. The Standard Model makes a definite prediction for the Higgs boson self-coupling and...
The Compton Spectrometer and Imager (COSI) is a 0.2-5 MeV gamma-ray telescope designed for spectroscopy, imaging, and polarimetry of astrophysical sources. With its excellent energy resolution and localization capabilities, COSI is uniquely equipped to study signatures of electron-positron annihilation at the heart of the Milky Way Galaxy, radioactive decays from stellar and explosive...
One of the most persistent tensions in flavor physics is the $V_{cb}$ puzzle, a long standing tension between inclusive and exclusive determinations of the CKM matrix element $V_{cb}$. After lattice QCD has been applied extremely successfully in the calculation of physical quantities needed for the exclusive determination of $V_{cb}$ for many years, now also methods for computing inclusive...
After examining the mass and pressure decompositions of hadrons in the stress-energy-momentum tensor, it is found that the glue part of the trace anomaly can be identified as originated from the vacuum energy of the glue condensate and gives a CONSTANT restoring pressure which balances that from the traceless part of the Hamiltonian (quark and glue kinetic energies) to confine the hadron, much...
The discovery of the Higgs boson with the mass of about 125 GeV completed the particle content predicted by the Standard Model. Even though this model is well established and consistent with many measurements, it is not capable to solely explain some observations. Many extensions of the Standard Model addressing such shortcomings introduce additional Higgs-like bosons which can be either...
The $\beta$-decay of the free neutron contains a wealth of information about the charged weak interaction. Measurements of the lifetime and angular correlation coefficients can be use to determine $V_{ud}$, the first element of the Cabibbo–Kobayashi–Maskawa quark mixing matrix.Traditionally Super-allowed Fermi nuclear beta-decays have provided the most precise determination of $V_{ud}$, but...
We report on the result of the neutron electric dipole moment EDM search which took data in 2015 and 2016 at PSIs ultracold neutron source. The neutron EDM is deemed to be one of the most sensitive probes of physics beyond the standard model. The experiment measured the precession frequency of spin polarized neutrons as a function of a strong electric field. The electric dipole moment of the...
The Dark Energy Survey (DES) is an optical astronomical imaging survey of one-quarter of the Southern sky. The on-sky operations for the survey were completed in 2019, with observations conducted over the course of 6 years with a 3-square-degree wide-field mosaic camera -- the Dark Energy Camera, or DECam -- installed on the Blanco 4-meter telescope at the Cerro Tololo Interamerican...
The strong interaction between nucleons has been at the heart of nuclear physics since the very beginning of this field. Remarkable progress has been achieved in recent decades towards quantitative understanding of nuclear forces and currents in the framework of chiral effective field theory. Combined with ab-initio few-body methods, this approach opens the way for a systematically improvable...
The permanent electric dipole moment of the neutron (nEDM) provides one of the most promising systems for searches of undiscovered CP-violations. The Standard Model (SM) provides a contribution to the nEDM several order of magnitudes smaller than the current experimental bound, thus the experimental finding of a permanent nEDM provides a unique, background-free window for potential discovery...
Generalized parton distributions (GPDs) encompass crucial information on the three-dimensional structure of hadrons and their mechanical properties via the energy-momentum tensor form factors. I will present our improved understanding of the extraction of GPDs from hard exclusive measurements, as well as the modelling efforts undertaken to give a more comprehensive picture of extraction...
The production of cold antihydrogen atoms at CERN's Antiproton Decelerator (AD) has opened up the possibility to perform direct measurements of the Earth's gravitational acceleration on antimatter bodies. This is the main goal of the AEgIS collaboration: to measure the value of g using a pulsed source of cold horizontally travelling antihydrogen via a moiré deflectometer/Talbot-Lau...
One of the most interesting puzzles in physics is the baryon asymmetry of the universe (BAU). One requirement to explain the observed BAU is the violation of the combined charge conjugation (C) and parity (P) symmetries. While the Standard Model (SM) of particle physics contains sources of CP violation, it is too small to explain the BAU. In order to help reconcile theory and observation,...
The study of the internal dynamics of nucleons, which make up the majority of visible matter in the universe, is critical to our understanding of the theory of strong interactions and the nature of matter itself. The recently upgraded CEBAF Large Acceptance Spectrometer (CLAS12) at Jefferson Lab aims to study questions such as: how are quarks confined in nuclear matter, how do the properties...
The ALPHA experiment has conducted the highest precision measurements on antihydrogen to date in order to test matter / antimatter symmetries. Our recent demonstration of laser cooling antihydrogen represented not only a novel spectroscopic survey in the antiatom, but also an important technical milestone in improving our comparisons against hydrogen [1]. A cooled population of antihydrogen...
Recent experimental and theoretical nuclear physics results that connect to Big Bang Nucleosynthesis (BBN) will be reviewed. Motivations for new nuclear physics measurements are provided by precise astrophysical deuterium observations and the need to understand the BBN production of elements heavier than helium. These heavier elements (lithium, beryllium, boron, carbon, nitrogen, etc...) may...
The study of the 125 GeV Higgs boson can open a window of sensitivity to a new dark sector. Results of searches for both prompt and non-prompt decays of the Higgs boson into new dark sector particles in 13 TeV pp collisions with the ATLAS detector are presented. Searches that encompass a wide range of new particle masses, lifetimes and degrees of collimation of decay products are discussed.
The Los Alamos National Laboratory room-temperature neutron EDM (nEDM) experiment's goal is to measure the electric dipole moment (EDM) of the neutron with a projected uncertainty of $3 \times 10^{-27}$ e-cm. It will use Ramsey's method of separated oscillatory fields to track the spin precession of neutrons in two cells situated in a magnetically shielded room with precisely controlled and...
Two critical questions in particle physics remain unanswered--what is the particle nature of dark matter, and why is there no antimatter in the universe? Searches for neutron oscillations are an essential component of the worldwide program to understand baryon number violation and what comprises dark matter, but are underexplored experimentally. If dark matter is made up of a rich hidden...
Recent years have brought a breakthrough in calculations of the x-dependence of partonic distributions on a Euclidean lattice. In this talk, I will discuss our progress in extracting generalized parton distributions (GPDs) from the quasi-distribution approach. I will present both the leading-twist GPDs and our exploratory studies of selected twist-3 cases.
Many theories beyond the Standard Model predict new phenomena, such as heavy vectors or scalar, vector-like quarks, and leptoquarks in final states containing bottom or top quarks. Such final states offer great potential to reduce the Standard Model background, although with significant challenges in reconstructing and identifying the decay products and modelling the remaining background. The...
The instability of hyperons against the weak interaction hinders the experimental extraction of baryon-baryon low-energy observables in the strange sector. In this energy regime, a reliable numerical procedure to obtain information of nuclear physics quantities is lattice QCD, a high-demanding numerical approach to solve the complex dynamics of strongly-interacting systems directly from the...
Neutrons play a dominant role in the stellar nucleosynthesis of heavy elements. We review a scheme for the experimental determinations of neutron-induced reaction cross sections using a high-intensity neutron source based on the 18O(p,n)18F reaction with an 18O-water target at SARAF’s upcoming Phase II. The quasi-Maxwellian neutron spectrum with effective thermal energy kT ≈ 5 keV,...
The TUCAN collaboration is installing a new ultracold-neutron source using a superfluid-helium converter driven by a spallation source at TRIUMF’s proton cyclotron. Its world-leading ultracold-neutron-production rate will allow us to search for a neutron electric dipole moment with a sensitivity of $10^{-27}$ e$\cdot$cm, an improvement by one order of magnitude over the currently best limit....
Neutron-antineutron oscillations and proton decay are long-sought manifestations particle unification models. At least one of these phenomena is expected to exist due to the observed baryon asymmetry of the Universe. Constraints on unification and beyond-standard models from existing and newly proposed experiments depend heavily on nucleon and nuclear matrix elements of quark-level BNV...
Time-dependent magnetic fields can be sourced by spinning neutron stars, orbiting binaries and merging neutron stars. We consider electromagnetic radiation from
axion condensates in the background of an alternating magnetic field. We find that a resonant peak in radiation can occur when the frequency of the alternating magnetic field is comparable with the axion mass scale. More...
A new era for the exploration of hadron structure has begun with the Jefferson Lab 12 GeV program and the planned Electron Ion Collider. The new generation of experiments will allow us to probe the quantum correlation function (QCFs) of quarks and gluons that emerges from the theory of strong interactions. Since these QCFs are not direct physical observables, the experimental data needs to be...
Recent years have seen enormous progress in ab initio approaches to the nuclear many-body problem, ranging from traditional coordinate and configuration-space methods to Lattice Effective Field Theory (EFT). EFT and renormalization group (RG) techniques have provided new systematic tools to treat the correlations in strongly interacting systems, and to inject ab initio ideas into methods that...
In this talk, I will describe neutrino interactions over a wide energy range and overview experimentally observed reactions. I will discuss theoretical approaches for the evaluation of scattering cross sections for different neutrino-induced processes at various energy scales. The energy range and precision of modern and future neutrino experiments and observations require us to account for...
In this talk, I will discuss our recent analysis of the BOSS power spectrum monopole and quadrupole, and the bispectrum monopole and quadrupole data, using the predictions from the Effective Field Theory of Large-Scale Structure (EFTofLSS). Specifically, we use the one-loop prediction for the power spectrum and the bispectrum monopole, and the tree level for the bispectrum quadrupole. After...
Experimental tests of fundamental symmetries using nuclei and other particles subject to the strong nuclear force have led to the discovery of parity (P) violation and the discovery of charge-parity (CP) violation. It is believed that additional sources of CP-violation may be needed to explain the apparent scarcity of antimatter in the observable universe. A particularly sensitive and...
NOvA is a long-baseline neutrino experiment at Fermilab that studies neutrino oscillations via electron neutrino appearance and muon neutrino disappearance. The oscillation measurements compare the Far Detector data to an oscillated prediction which combines Near Detector (ND) data and the current understanding of neutrino interactions through simulation using GENIE. By adjusting the cross...
The neutron represents a versatile tool in the realm of fundamental particle physics. It is used to perform precision physics measurements at low energies with the goal to search for signals beyond the Standard Model of particle physics. In this respect, the neutron Electric Dipole Moment (EDM) has attracted interest as a promising channel for finding new physics since decades. The existence...
In the standard cosmological paradigm, the initial condition follows Gaussian statistics. At later times, gravitational evolution induces nonlinearities in the large-scale structure, and information that had been fully captured by the two-point statistics gets spread into higher-order statistics. In this talk, I will present our recent progress on the N-point Correlation Function (NPCF) for N...
Many progresses have been made in developing nuclear Hamiltonians within the framework of chiral effective field theory. In particular, the develop of chiral interactions that are fully local opened the way of implementing these Hamiltonians in Quantum Monte Carlo calculations. The advantage of using Quantum Monte Carlo methods is that they are not limited to use soft interactions, and...
Many theories beyond the Standard Model predict new phenomena, such as $Z'$, $W'$ bosons, or heavy leptons, in final states with isolated, high-pt leptons (e/mu/tau). Searches for new physics with such signatures, produced either resonantly or non-resonantly, are performed using the ATLAS experiment at the LHC. This includes a novel search that exploits the lepton-charge asymmetry in events...
The constituents of dark matter are still unknown, and the viable possibilities span a very large mass range. Specific scenarios for a thermal origin of dark matter sharpen this mass range to within about an MeV to 100 TeV. Most of the stable constituents of known matter have masses in the MeV to GeV range, and a thermal origin for dark matter works in a simple and predictive manner in this...
Sensitivities of future large underground neutrino oscillation experiments are critically dependent upon precisely understanding the initial energy of an incoming neutrino via cross section models and event generator predictions which summarize prospective final states. Extracting the true initial energy of the neutrino is thus model dependent, requiring a deep understanding of the biases...
A non-zero electric dipole moment (EDM) of a fundamental particle or a composite system, such as a nuclei, an atom, or a molecule, violates the time reversal symmetry, implying a violation of the combined charge conjugation and parity (CP) symmetry. The $^{199}$Hg EDM experiment has the most precise measurement on the frequency difference leading to an upper limit on the $^{199}$Hg EDM $\mid...
Neutron stars are cosmic laboratories uniquely poised to determine the nuclear equation of state (EOS). The historical detection of the binary neutron star merger GW170817 by the LIGO-Virgo collaboration and other critical observations since then are providing new insights into the nature of neutron-rich matter. In turn, the recent extraction of the neutron skin thickness of 208Pb by the PREX...
Many new physics models predict the existence of Higgs-like particles decaying into two bosons (W, Z, photon, or Higgs bosons) making these important signatures in the search for new physics. Searches for Vy, VV, and VH resonances have been performed in various final states. In some of these searches, jet substructure techniques are used to disentangle the hadronic decay products in highly...
Standard Model predictions of neutrino-nucleus scattering cross sections for neutrino energies around 1 GeV or more are needed to precisely extract neutrino oscillation parameters from future neutrino oscillation experiments such as DUNE and Hyper-Kamiokande. However, theoretical predictions are challenging due to non-perturbative physics arising from low-energy QCD interactions in nuclear...
Recently we have shown that the galaxy 4-point correlation function, which measures an excess of quartets of galaxies over random, is sensitive to parity violation in our universe’s large scale structure. It is fundamentally 3d and thus has a handedness even after applying isotropy, in contrast to galaxy pair and triplet correlations. With this new observable we have detected parity violation...
Elucidating the nature of dark matter remains a central challenge in fundamental physics. A growing interest in light (sub-GeV) dark matter consisting of new particles coupling only feebly to ordinary matter has recently emerged. Low-energy, high luminosity colliders such as BABAR are ideally suited to probe these possibilities. In this talk, we will review searches for dark sectors and light...
One of the motivations to search for new physics Beyond the Standard Model (BSM) is to understand the baryon asymmetry present in the Universe, namely the discrepancy between the theoretical prediction of the baryon asymmetry based on the SM and the value obtained through observations of the cosmic microwave background. The Neutron OPtics Time Reversal EXperiment (NOPTREX) Collaboration seeks...
The development of radioactive ion beams (RIB) in the mid-eighties has enabled the exploration of regions of the nuclear landscape away from the valley of stability, uncovering nuclei with unexpected features. Halo nuclei exhibit among the most peculiar structures in the nuclear landscape. Unlike most nuclei, they have a very large matter radius compared to their isobars, that can be explained...
Complete Monte Carlo simulation of a neutrino experiment typically involves the lengthy and CPU-intensive process of integrating models of incoming neutrino fluxes, event generation, as well as detector setup, of which accounting for the detector response in an essential component.
We provide an alternative, fast, geometry-independent system for modeling the energy smearing and angular...
The Baksan Experiment on Sterile Transitions (BEST) was designed to investigate the deficit of electron neutrinos, $\nu_e$, observed in previous gallium-based radiochemical measurements with high intensity neutrino sources, commonly referred to as the gallium anomaly. The BEST setup is comprised of two zones of liquid Ga target to explore neutrino oscillations on the meter scale. Any deficits...
Neutron stars are unique laboratories for studying strongly interacting, neutron-rich matter under extreme conditions. While much has already been learned about neutron stars in the era of multi-messenger astronomy, many key questions remain, especially regarding the composition and equation of state (EOS) of the ultra-compressed matter in their inner cores. At the same time, chiral effective...
The density dependence of the symmetry energy is a quantity that has long been anticipated to inform the determination of the neutron matter equation of state (EOS). Knowledge of the neutron distribution in heavy nuclei impacts nuclear structure theory, our understanding of neutron star structure, nuclear spectroscopy, atomic parity measurements and more. Electron scattering has already...
Some Hard exclusive processes off thenucleon, involving the exchange of at least one high virtualityphoton off a quark, enable access to the transverse partonic structureversus the longitudinal momentum of the partons. The so-called Generalized Parton Distributions (GPDs), parametrizing theseprocesses, contain this information. Their interpretation can lead totomographic views of the partonic...
Much of what we know about high-energy components of nuclear structure comes from recent measurement campaigns at Jefferson Lab. Experiments from the 6 GeV era have provided precise results about short-range nucleon-nucleon correlations and their nuclear dependence. Additionally, an intriguing correlation was observed to measurements of modifications of nuclear quark distributions (EMC...
The ALICE experiment is dedicated to studying the properties of the quark-gluon plasma, a strongly-interacting matter produced in collisions of heavy-ions at the LHC. In this talk, recent highlights from ALICE in Pb+Pb collisions investigating the properties of the QGP will be shown, along with results from p+p and p+Pb collisions. Recently, ALICE has undergone a major upgrade in preparation...
The discovery of neutrino oscillations has motivated the extension of the Standard Model and various neutrino experiments including beam-based neutrino facilities are expected to measure the related parameters more precisely, deepening our understanding of the nature of neutrinos. Beyond the neutrino-sector physics, such neutrino facilities are receiving increasing attention as they can test...
Neutron beta decay is an excellent case for testing the internal consistency of the Standard Model electroweak sector and probe new physics (NP) at the TeV scale through its absence of nuclear structure corrections. Radiative corrections (RC) precipitate the largest change to the decay rate and have received renewed interest due to recent changes. With the advent of precision lattice QCD...
The BeEST (Beryllium Electron capture in Superconducting Tunnel junctions) experiment searches for physics beyond the standard model (BSM) in the neutrino sector through momentum conservation in electron capture decay (EC) of Be-7 [1]. Be-7 atoms are directly implanted into Ta-based superconducting tunnel junction (STJ) sensors that can measure the energy of the recoiling Li-7 daughters with a...
The Relativistic Heavy Ion Collider (RHIC) is the first and only collider in the world that is able to run polarized proton beams, allowing for polarized measurements at higher energies compared to fixed target experiments. Longitudinally polarized collisions probe the spin structure of the proton, while transversely polarized collisions allow for spin-momentum correlation measurements that...
Heavy ion collisions allow access to novel QCD and QED studies in a laboratory. The CMS heavy ion program is focusing on precision studies of the properties of quark-gluon plasma (QGP) and the strong electromagnetic fields, produced in such collisions at high energies. This talk will present recent CMS results on various QGP and QED probes, such as jets, electroweak bosons, heavy flavor...
Jefferson Lab measurements of the EMC effect in light nuclei demonstrated that the nuclear modification of quark parton distribution functions (pdfs) does not simply scale with the mass or density of the nucleus, as previously assumed, but is sensitive to microscopic details of the nuclear structure. In addition, it showed that the connection between the EMC effect and the presence of...
The free neutron lifetime has been measured in two ways: by measuring the decay products of neutrons in a well calibrated neutron beam (beam experiment), or by counting the number of surviving neutrons stored in a UCN trap over time (bottle experiment). The lifetime results from the two different methods differ by 10 seconds, or five standard deviations. Recently, there has been a variety of...
The MicroBooNE collaboration recently released a series of measurements aimed at investigating the nature of the excess of low-energy electromagnetic shower events observed by the MiniBooNE collaboration. In this talk, we will present the latest results from both a search of single photons in MicroBooNE, as well as a series of three independent analyses leveraging different reconstruction...
The virtual photon asymmetry $A_1$ is one of the fundamental quantities that provide information on the spin structure of the nucleon. The value of $A_1$ at high $x_{Bj}$ is of particular interest because valence quarks dominate in this region, which makes it a relatively clean region to study the nucleon structure. Several theoretical calculations, including naive SU(6) quark model,...
The LHCb detector is a unique tool for studying heavy-ion collisions at the LHC. Because of its forward acceptance, the LHCb detector is able to study heavy ion collisions in kinematic regions complementary to those probed at other LHC and RHIC experiments. Furthermore, the LHCb detector's excellent momentum and vertex resolution make it an ideal tool for studying heavy-flavor production. In...
He6-CRES is a precision nuclear beta-decay experiment using the technique of cyclotron radiation emission spectroscopy (CRES) to preform beta-spectra measurements. We determine the energy of the beta by measuring the frequency of the cyclotron radiation when the beta decay occurs within a magnetic field. This aims to be a sensitive search for chirality-flipping interactions through the Fierz...
This talk will cover some recent progress on simulating and constraining MeV-scale heavy neutral leptons at neutrino experiments. I will introduce DarkNews, a fast simulation tool for generating dilepton and single photon events in accelerator neutrino experiments, and present new limits derived from the T2K near detector using a novel method to sample multi-dimensional parameter spaces.
Understanding the modification of quarks in nucleons within nuclei (EMC effect) is a longstanding open question in nuclear physics. Recent experimental results from electron scattering at Jefferson Lab strengthen the correlation between the EMC effect and short-range correlated pairs (SRC) of nucleons in nuclei. That means that the EMC effect is probably driven by the high-momentum...
The spin structure of the proton and the spin-momentum correlations between the proton and its constituent partons are currently the main focus of the PHENIX cold QCD program at the Relativistic Heavy Ion Collider. The large amounts of data collected using the PHENIX detectors in collisions utilizing longitudinally or transversely polarized protons only available at RHIC continue to further...
Nuclear reactors are one of the major sources that have been used to study neutrinos. Reines and Cowan first detected neutrinos from Savannah River P Reactor. Later the KamLAND experiment observed neutrino oscillation and measured the oscillation parameter $\Delta m_{12} ^2$. The Daya Bay experiment precisely measured the mixing angle $\theta_{13}$ which was verified independently by Reno and...
A precise determination of the pion electronic decay branching ratio $\Gamma(\pi\rightarrow e\bar{\nu}(\gamma))/\Gamma(\pi\rightarrow \mu \bar{\nu}(\gamma))$ provides the best test of electron-muon unversality, taken as valid in the Standard Model. Currently, the experimentally determined value of this ratio is lags behind the theoretical predicted value by an order of magnitude in precision....
Cumulants of conserved charge fluctuations probe the thermal state of
strongly interacting matter and have been the focus of many studies,
both theoretical and experimental, in recent years.
In lattice QCD calculations, they allow access to bulk thermodynamic
quantities at small, non-vanishing chemical potential via Taylor
expansion and find application in the search for a critical...
Diquark bonds formed from valence quarks across a nucleon-nucleon pair have been proposed as the fundamental quantum chromodynamics (QCD) physics causing short-range correlations (SRC) in nuclei. The 12-quark "hexadiquark" QCD state - effectively two SRC bound together - is also proposed as the cause of distortions of quark distribution functions in nuclei. While SRC have been extensively...
In this talk I will present the recent results on inclusive and exclusive electron scattering cross section measurements on Ar at Jefferson Lab Hall A. I will describe how this experiment will inform the future neutrino oscillation experiment like DUNE and I will describe how the electron scattering data can be used to determine accurate nuclear model that describes neutrino-nucleus...
LHCb is at the forefront of searches for new exotic hadrons through spectroscopy in high energy physics and the recent results published from proton-proton collision data taken by the experiment will be presented. In particular, the observation of a $J/\psi\Lambda$ resonance in $B^{-}\to J/\psi\Lambda\bar{p}$ decays consistent with a strange pentaquark, and two new tetraquarks (one doubly...
The rapid neutron capture process, or r process, is expected to produce some of the heaviest elements observed to exist in nature. In the immediate aftermath of the r process in astrophysical environments, the nuclei produced are extremely neutron-rich and, therefore, undergo a long period of radioactive decay proceeding through a broad swath of the chart of nuclides, the effect of which can...
The decay of the free neutron into a proton, electron, and antineutrino is the simplest beta decay system. The beta electron-antineutrino angular correlation (a-coefficient) is one of several important experimental parameters of neutron decay. Together these can be used to measure the weak decay couplings G_A and G_V, determine important fundamental parameters of the weak nuclear force, and...
Despite the success of the Standard Model (SM) of particle physics, there exist phenomena that it cannot explain, suggesting the existence of a more complete theory which is yet unknown. Rare decays of hadrons containing a b-quark provide a powerful way of exploring theories of physics beyond the SM. Hypothetical new particles could enhance the decay rates of these rare processes to a level...
The Solenoidal Tracker at RHIC (STAR) experiment is dedicated to the study of the different phases and properties of high energy-density QCD matter produced in ion-ion collisions at RHIC. A major current focus is centered on mapping the QCD phase diagram, elucidating the transport and anomalous transport properties of the Quark-Gluon Plasma (QGP), and testing for chiral symmetry restoration. ...
The Nab collaboration aims to make the world’s most precise, by about a factor of 6, measurement of the electron-neutrino angular correlation parameter “a” and the Fierz interference term “b” in cold neutron beta decay. Along with the neutron lifetime, these measurements provide a complementary test of various extensions to the standard model. Nab is 4 m tall asymmetric time of flight...
Core-collapse supernovae are one of the most complex phenomena in the universe. Not only are they one of the sites of the production of the heavy elements which enable the existence of life, but their cores are also one of the densest environments we can indirectly probe. At such densities, the matter may no longer consist only of hadronic degrees of freedom but undergo a phase transition to...
Many exotic resonances have been recently observed at LHC. In this report a search for low-mass structures in the JPsi/JPsi mass spectrum in pp collisions at sqrt(s)=13TeV is presented. The new results are based on data collected by the CMS experiment during the full Run II.
The PHENIX result at the Relativistic Heavy Ion Collider has collected data scanning system sizes from pp and $^3$HeAl to Au+Au and U+U at collision energies from $\sqrt{s_{NN}}=7.7-510$ GeV. The extensive measurements from these data improve our understanding of the Quark Gluon Plasma and the origin of the proton spin. PHENIX's measurements of $\pi^0$ mesons, photons, heavy flavor...
The ATLAS experiment has performed measurements of $B$-meson rare decays proceeding via suppressed electroweak flavour changing neutral currents, and of mixing and CP violation in the neutral $B^0_s$ meson system. This talk will focus on the latest results from the ATLAS collaboration, such as rare processes $B^0_s \to \mu \mu$ and $B^0_d \to \mu \mu$, and CP violation in $B^0_s \to J/\psi...
The instrument PERKEO III was used to measure most precisely the beta asymmetry in neutron decay at the cold neutron beam line PF1b of the ILL, Grenoble. From this measurement, we extract the ratio of nucleon axial-vector and vector couplings. When combined with the neutron lifetime, this provides the CKM matrix element $V_{ud}$ with only a factor two in precision to the combined result from...
A production and decay model that incorporates theoretical and previously unrecognized experimental constraints on the LHCb pentaquark states is presented. The model satisfies all constraints and successfully fits the entire invariant mass distribution (unlike previous work). We find strong evidence for Sigma_c D molecular states along with threshold cusp and triangle singularities....
We report on a precise measurement of the antineutrino-electron angular
correlation (the $a$ coefficient) in free neutron beta-decay obtained with the
$a$SPECT experiment. The $a$ coefficient is inferred from the recoil
energy spectrum of the protons. Protons are detected in $4\pi$ in the
$a$SPECT spectrometer using magnetic adiabatic collimation with
an electrostatic filter. We have...
The 2015 Nuclear Science long range plan recommendation describes the importance for RHIC to complete its scientific mission and the crucial role sPHENIX plays in achieving that goal. sPHENIX is specifically designed to make state-of-the-art jet, upsilon and heavy flavor measurements to probe the inner workings of the Quark Gluon Plasma (QGP) produced in heavy ion collisions at RHIC. The...
Measurements of multiboson production at the LHC are important probes of the electroweak gauge structure of the Standard Model and for contributions from anomalous couplings. In this talk we present recent ATLAS results on Zy production in association with jet activity. These differential measurements provide inputs and constraints on modeling of the Standard Model. In addition we will present...
Baryon number violation is a key ingredient of baryogenesis. Since the famous parity violation paper of Lee and Yang, it has been known that there could also be a parity conjugated copy of the standard model particles. The existence of such a mirror universe has specific testable implications, especially in the domain of neutral particle oscillation, viz. the baryon number violating neutron to...
Charged lepton flavor violation has long been recognized as unambiguous signature
of New Physics. Here we describe the physics capabilities and discovery potential
of New Physics models with charged lepton flavor violation in the tau sector as its
experimental signature. Current experimental status from the B-Factory experiments
BaBar, Belle and Belle II, and future prospects at Super Tau...
Very detailed measurements of Higgs boson properties and its interactions can be performed with the full Run 2 pp collision dataset collected at 13 TeV, shining light over the electroweak symmetry breaking mechanism. This talk presents the latest measurements of the Higgs boson coupling properties by the ATLAS experiment in various decay bosonic and fermionic channels, as well as their...
The strong interaction between quarks and gluons, from which hadrons are built, is theoretically described by quantum chromodynamics. However, the role of gluons and how they affect the properties of hadrons is still unresolved. The discovery of several unexpected and possibly exotic hadrons in recent years highlights the need for precise spectroscopic measurements to understand the nature of...
Over the last 5 years, the Jet Energy loss Tomography with a Statistically and Computationally Advanced Program Envelope (JETSCAPE) collaboration has constructed and publicly released an extensive framework to design, build and test event generators for high energy heavy-ion collisions. The physics of these collisions involves many aspects, such as the initial state of incoming nuclei, the...
The theory of “mirror matter” restores parity to the Standard Model of Particle Physics by hypothesizing a copy of the Standard Model particles and interactions with right-handed weak interactions. Since mirror matter would only rarely interact with normal matter, particles predicted by this theory could be one possible candidate for dark matter. A version of this theory with non-degenerate...
One of the motivations for the recent upgrade of Jefferson Lab was to precisely explore the connection between the fundamental quarks and gluons of Quantum Chromodynamics (QCD)- the accepted theory of the strong force - and the effective hadron descriptions of the strong interaction. The ultimate goal being an accurate understanding of the emergence of nuclei from QCD. The key experiments of...
I will review recent lattice QCD results on heavy flavor probes of QGP, including in-medium bottomonium masses and widths, the complex heavy quark potential at non-zero temperature, and the heavy quark diffusion coefficient.
PREX-II and CREX were two experiments designed to measure the neutron skin thickness in $^{208}$Pb and $^{48}$Ca respectively. Both experiments used the parity-violating electron scattering (PVES) technique, which involved measuring the parity-violating cross-section asymmetry ($A_{pv}$) between left- and right-handed longitudinally polarized electron scattering off an unpolarized target. The...
Parton dynamics inside the proton and hadronization are key areas of research in Quantum ChromoDynamics (QCD) at LHCb at the Large Hadron Collider. A large hard scale above the electroweak scale reached by hadron collisions at unprecedentedly high energies enables measurements sensitive to multiple scales that potentially explain interesting nonperturbative dynamics inside the proton and in...
Cold dark matter is one of the major constituents of the leading cosmological model for our Universe, with many ongoing experimental efforts at directly detecting interactions of the hypothetical particle with terrestrial detectors.
SuperCDMS SNOLAB is a Generation-2 dark matter experiment under construction at SNOLAB in Sudbury, Canada. The experiment will employ two types of state of the...
We present high statistics measurements of 15 cosmic ray nuclei, H to Si and Fe, based on 10 years of the AMS data.
The transverse-momentum-dependent parton distributions (TMDs) provide a 3D imaging of the proton and other hadrons in high-energy scattering experiments, such as those at Fermilab, Jefferson Lab, RHIC and LHC. Recent years have seen significant progress in the global fitting of TMDs from experiments, and along with that is a lattice QCD program aiming at first-principles calculation of these...
In ultra-relativistic heavy-ion collisions a hot and dense QCD matter, called Quark- Gluon Plasma (QGP), is produced. Heavy quarks (charm and beauty) are powerful probes to investigate the production and properties of the QGP. They are produced in hard scattering processes with large momentum transfer before the formation of the QGP, thus experiencing the full evolution of the system. The...
The technique of parity-violating electron scattering, involving measurements of the asymmetry in the scattering of longitudinally polarized electrons off fixed targets, has become increasingly precise over the past three decades. Such asymmetries are sensitive to weak neutral current interactions (mediated by the Z boson) between electrons and quarks, or between two electrons, and can be...
The $\beta$-decay study of indium-133 provides a unique connection between nuclear structure and astrophysics. On one hand, $^{133}$In is a perfect $\beta$-decay demonstrator of r-process nuclei in the vicinity of $N=82$ owing to its extreme neutron-proton asymmetry and thus large $Q_{\beta}$ and $Q_{\beta n}$ windows. On the other hand, its decay daughter, $^{133}$Sn, is simple in its nuclear...
The SPICE and HeRALD experiments aim to probe dark matter (DM) masses down to 10 MeV, with upgrade paths to sub-MeV masses. The project is currently in a preparatory R&D phase focused on first pushing Transition Edge Sensor (TES) recoil energy thresholds into the sub-eV regime, and then applying this next generation of sensors to a variety of well-motivated target materials. The HeRALD...
In contrast with inclusive measurements on nuclei, detecting hadrons originating from nuclear breakup provide additional control over the nuclear configurations playing a role in the scattering process. On the flip side, however, final-state interactions (FSI) of these breakup products need to be accounted for in the physical interpretation of the measurement. These FSI can obscure the physics...
A detailed understanding of the proton's properties is incomplete without the knowledge of the transverse spin structure of its constituent quarks, which may be accessed in proton-proton collisions via hadron-in-jet and di-hadron asymmetries. Both observables couple the quark transversity distribution to a spin dependent fragmentation function. For the di-hadron channel it is the collinear...
During classical nova nucleosynthesis, the 30P(p,gamma)31S reaction rate critically affects the mass flow into the A=30-40 range, impacting the abundances of isotopes of phosphorus, sulfur, and silicon. Direct measurement of the (p,γ) reaction is not currently possible due to insufficient beam intensities. The rate of this reaction depends on undetermined spectroscopic strengths of low-lying...
The recent observations of enhanced particle yields, including 𝐽/𝜓, in high event multiplicity 𝑝+𝑝 collisions at RHIC and LHC suggest possible strong contributions from semi-hard Multi-Parton Interactions (MPI) as well as other final state interactions. These new results challenge not only the traditional “single hard-scattering” pQCD description that is widely used in calculating particle...
The hadronic weak interaction provides unique probe of the strong dynamics that confine quarks into nucleons in the low energy non-perturbative QCD regime. Precision measurements of parity violating observables in few body NN systems can provide important benchmarks for models that aim to describe this low-energy non-perturbative QCD regime, as well as effective models that seek to describe...
Recently developed effective theories of QCD in matter have enabled the derivation of medium-induced branching processes as a function of nuclear opacity. I will demonstrate how splitting functions can be derived for both light partons and heavy quarks and discuss how parton showers in matter differ from the ones in the vacuum. These advances allow us to bridge the gap between high energy and...
Nuclear parton distribution functions (nPDF) play a crucial role in the interpretation of scattering data taken in proton-nucleus and nucleus-nucleus collisions at the Relativistic Heavy Ion Collider (RHIC), the Large Hadron Collider (LHC) and in the near future at the Electron-Ion Collider (EIC). However, analyses of these nPDFs are still far away from the precision obtained in free proton...
Quarkonia are considered as excellent probes to understand the properties of the quark gluon plasma (QGP), which is expected to be created in heavy ion collisions. In particular, experimental results of azimuthal anisotropy for charmonium states are expected to provide crucial information on the dynamics of quarkonia as well as the QGP properties. In this presentation, we present a detailed...
The DMRadio suite of experiments seeks to search for one of the most promising Dark Matter (DM) candidates, the axion, via an optimized resonant lumped element search. In order to cover as wide of a parameter space as possible, each of the DMRadio experiments is designed to cover specific complementary mass regions starting from 5 kHz (≈ 20 peV) in the DMRadio-50L experimental all the way up...
All information about the initial state of partons in a nucleon/nucleus before a hard scattering takes place is encoded in universal, non-perturbative functions collectively known as “parton distribution functions” (PDFs). Depending on the physical processes and kinematic region studied, different PDFs can be extracted, e.g., unpolarised/polarised PDFs, generalised PDFs, etc. In the...
A nuclear anapole moment (NAM)--a magnetic moment associated with a localized toroidal current--arises due to hadronic parity violating interactions between nucleons. The NAM can be detected via the coupling of its local magnetic field to the spin of a penetrating electron, such as an unpaired valence electron in a neutral atom. ZOMBIES is an experiment to measure NAMs using neutral polar...
Gluon nuclear Parton distribution functions (nPDFs) have been the subject of many studies over the past years, since they are important for many processes and difficult to constrain. Recently, nCTEQ15 nPDFs have been updated with vector boson production data to address this issue. To constrain the gluon nPDF further, particularly at low x, we present two new global analyses adding single...
The analysis of J/$\psi$ photoproduction in ultra-peripheral collisions
(UPC) of heavy ions allows for perturbative QCD considerations which
address the gluon saturation and nuclear shadowing. J/$\psi$ and $\psi^{'}$
photoproduction cross sections in Pb--Pb UPC, measured by ALICE both at forward
and central rapidities, are compared with available QCD-based models.
The first measurement...
The ${\rm M{\scriptsize AJORANA}}$ ${\rm D{\scriptsize EMONSTRATOR}}$ is an experiment designed to search for neutrinoless double beta decay of $^{76}$Ge. The ${\rm D{\scriptsize EMONSTRATOR}}$ consisted of two modules of p-type point-contact germanium detectors operating at the 4850’ level of the Sanford Underground Research Facility in Lead, SD. The experiment recently concluded its...
Neutron-rich nuclei near the limits of nuclear stability are one of the main areas of study at the Facility for Rare Isotope Beams (FRIB). These systems exhibit features common to all open quantum systems due to their weakly bound or unbound character, and also reveal interesting information about the nuclear interaction due to their extreme neutron-to-proton ratios and emergent behaviors....
Heavy-ion collisions at the LHC and RHIC create a large enough energy density to form a deconfined medium of strongly-interacting quarks and gluons called quark-gluon plasma (QGP). The properties of the QGP including its near-perfect hydrodynamic behavior arising from the interactions between elementary quarks and gluons are not very well understood. Jets have proven to be crucial probes of...
In this talk I will start by reviewing the current status of the so-called neutral $B$-anomalies, a set of measurements in channels mediated by the $b \to s$ transition and involving muons in the final states. Several of these measurements disagree with SM predictions, and are coherently hinting at the presence of LFUV NP coupled to muons. After introducing the main groups performing global...
Using data samples with a total integrated luminosity of more than 20 fb^-1 at center-of-mass energies between 4 and 5 GeV, charmonium(-like) states can be investigated in high detail with the BESIII experiment. Here, we will present past accomplishments and recent highlights, including studies on a Zcs candidate, cross section measurements of both hidden- and open-charm production and...
Neutrinos can escape dense environments, otherwise opaque to photons, and travel cosmic distances unscathed by background radiation or magnetic fields. They are ideal cosmic messengers and present a unique insight into the most energetic and enigmatic environments in the Universe. With the IceCube’s discovery of the high-energy cosmic neutrino flux, we have embarked upon a new era of...
When the neutrinos are at high densities, the neutrino-neutrino coherent forward scattering may lead to collective flavor oscillations. The evolution of these oscillations becomes a time-dependent quantum many-body problem. The computational complexities due to the exponential increase in the Hilbert space with the increase in the number of particles put limitations on how many neutrinos we...
CARIBU (CAlifornium Rare Isotope Breeder Upgrade) has been operating at the Argonne National Laboratory’s ATLAS facility for over a decade, and it is able to provide neutron-rich isotopic beams harvested from the fission fragment yield following the decay of a 252Cf source of ~1 Ci. These isotopes can be transported to a low-energy experimental hall and their ground state and decay properties...
The presence of a non-baryonic Dark Matter (DM) component in the Universe is inferred from the observation of its gravitational interaction. If Dark Matter interacts weakly with the Standard Model (SM) it could be produced at the LHC. The ATLAS experiment has developed a broad search program for DM candidates in final states with large missing transverse momentum produced in association with...
Charged lepton flavor violation refers to processes in which lepton family number is not conserved. Transitions among the $e$, $\mu$, and $\tau$ leptons without the emission of neutrinos --- not through the weak force –- would be unambiguous proof of a new force in nature outside the Standard Model. The discovery of the muon in 1937 immediately led to searching for the decay $\mu \rightarrow e...
Results of the first global and unitary analysis of e+e- to b b-bar are presented. We find strong evidence for the new Upsilon(10750). Branching fractions are found to deviate significantly from older results. Implications of this for modelling are discussed.
High energy partons lose energy when traversing the hot and dense medium produced in heavy-ion collisions. This results in a modification of the transverse momentum distribution of jets manifesting a phenomenon known as jet quenching. Early measurements have established in heavy ion collisions that jet quenching results in significant modifications to the transverse momentum balance of dijet...
The Association for Research at University Nuclear Accelerators (ARUNA; http://aruna.physics.fsu.edu) is an association of 13 university-based accelerator laboratories in the United States and the scientists performing research at them. Three ARUNA laboratories have the capability to produce rare-ion beams. Other ARUNA laboratories have developed unique capabilities in mono-energetic neutrons...
Accessing the hadron spectrum from Quantum ChromoDynamics (QCD) poses several challenges given its non-perturbative nature and the fact that most states couple to multi-particle decay modes. Although challenging, advances in both theoretical and numerical techniques have allowed us to determine few-body systems directly from QCD. A synergistic approach between lattice QCD and scattering theory...
The rate of semitauonic B decays has been consistently above theory expectations since these decays were first measured. Recently significant differences between the forward-backward asymmetry in $B\to D^{∗}e\nu$ and $B\to D^{*}\mu\nu$ were also reported. This talk presents recent results on lepton flavor universality tests from Belle II and LHCb.
Hard partonic scatterings serve as an important probe of quark-gluon-plasma (QGP) properties. The properties of jets and their constituents can provide a tool for understanding the partonic energy loss mechanisms. Low momentum jets offer a unique window into partonic energy loss because they reconstruct the partons which have lost a significant amount of energy to the QGP medium. The main...
Neutrino-induced coherent pion production is a significant background for
electron neutrino appearance and muon neutrino disappearance in neutrino
oscillation experiments. MINERvA has measured the cross sections of the charged
current channel simultaneously in hydrocarbon (CH), graphite (C), iron (Fe) and
lead (Pb), which exceed the model predictions at multi-GeV $\nu_{\mu}$ energies
and...
The IceCube Neutrino Observatory is a cubic kilometer detector located deep in the Antarctic ice, which has been operating in its full configuration since 2010. In 2013, IceCube discovered a diffuse flux of astrophysical neutrinos in the range of TeV to PeV energies. Since this discovery, there have been large efforts and gains in trying to: better understand the spectral shape of the flux,...
A major focus of our group over the past decade has been the study of the continuum structure of p-rich light nuclei using the invariant-mass technique. This effort has led to the discovery of 7 new isotopes beyond (sometime well beyond) the proton drip line. Just as important are the finding of new resonances in previously known nuclei and parameter determination, or refinement, of resonances...
Dark matter may consist of feebly interacting massive particles (FIMPs) that have never thermalized with the cosmic plasma. Their relic density is successfully achieved through the freeze-in mechanism for a wide range of dark matter mass, significantly expanding the model space to be tested compared to other production mechanisms. However, testing the tiny couplings required by freeze-in is...
Dileptons are a crucial probe of the strongly interacting matter created in ultra-relativistic heavy-ion collisions. Leptons are produced during the whole evolution of the created matter and can traverse the medium with minimal interactions. Different kinematics of dilepton pairs (mass and transverse momentum ranges) can selectively probe the properties of the formed matter throughout its...
We construct the light-front wavefunctions (LFWFs) of charmonium and bottomonium states on a small-sized basis function representation. In this work, we modeled the LFWFs for four charmonium states and three bottomonium states, $\eta_c$, $J/\psi$, $\psi'$, and $\psi(3770)$,as well as $\eta_b$, $\Upsilon$, $\Upsilon(2s)$, based on a set of orthonormal basis functions.The basis functions are...
Experimentally, dark matter has not yet been observed, and there is not yet any evidence for non-gravitational interactions between dark matter and Standard Model particles. In this talk, I will briefly review dark matter searches at CMS with Run II through different approaches with a focus on model-independent and dark sector searches. Since dark matter particles themselves do not produce...
QCD phase structure under magnetic field is a hot issue. On the hardonic side, Skyrme model with gauged Wess-Zumino Witten term is one of the simple low energy effective theory featuring chiral anomaly. Within such framework we investigate how an external magnetic field deforms the Skyrmion while preserving the homotopy. The Skyrme crystal constituted by multiple such magnetized Skyrmions...
The CKM angle gamma determination through the tree-level is a standard candle measurement of CP violation in the Standard Model.
A new combination of all LHCb measurements is performed. A precision below four degrees is obtained, which dominates the world average.
The measurements on the precise determination of the CKM matrix elements Vcb and Vub whose ratio determines the length of the...
I will review recent results for fragmentation functions using the Monte Carlo fitting approach of the Jefferson Lab Angular Momentum (JAM) collaboration
The quark gluon plasma (QGP) created in the Ultrarelativistic heavy-ion collisions behaves like a near perfect fluid with a small specific shear viscosity. Due to its transience and microscopic size, the QGP cannot be observed directly, but only through the particles it emits.
The JETSCAPE framework is a multistage framework that incorporates multiple models, each effective at an...
Announcing the dawn of a new era of multi-messenger astrophysics, the gravitational wave event GW170817 – involving the collision of two neutron stars – was detected in 2017. In addition to the gravitational wave signal, it was accompanied by electromagnetic counterparts providing new windows into the different physics probed by the system. Since then, several gravitational wave events...
Neutrinoless double beta decay ($0\nu\beta\beta$) is a hypothetical process that two neutrons in a nucleus simultaneously decay to protons, emitting two electrons but no anti-neutrinos. Searching for $0\nu\beta\beta$ is currently considered the only viable experimental technique to test the Majorana nature of neutrinos. As the $0\nu\beta\beta$ process violates lepton number conservation, its...
The creation of a Quark-Gluon Plasma (QGP) during heavy-ion collisions constitute a unique opportunity to study strong interactions under extreme conditions. Therefore, the JETSCAPE collaboration was started with the purpose of developing a multistage framework capable of combining different models at each stage, in order to study the evolution of jets and high-pT probes during heavy-ion...
Both SIDIS and e+e- annihilation provide clean and complimentary environments to study hadronization. While the e+e- annihilation cross-section is independent of a non-perturbative partonic initial state, SIDIS data enables more sensitivity to the flavor dependence of the hadronization process.
With record setting datasets being collected in SIDIS by the CLAS12 experiment and in e+e- by the...
For years, it was agreed that the radius of the proton was $0.88$ fm. A 2010 measurement using a new muonic-hydrogen spectroscopy technique reported a result of $0.84$ fm, a $5\sigma$ discrepancy with the the accepted value, launching what has come to be known as the ``proton radius puzzle''. A flurry of explanations emerged in the aftermath, ranging from new physics to incorrect analysis...
The COHERENT collaboration operates a suite of neutrino detectors that are located in a basement hallway at the Spallation Neutron Source, at Oak Ridge National Laboratory. The detectors in “Neutrino Alley” search for neutrino-nucleus interactions from Coherent Elastic Neutrino-Nucleus Scattering as well as higher energy Charged and Neutral current inelastic measurements. The results of these...
How collectivity originates and evolves in the collisions of small size systems is a highly debated topic in the heavy ion community. The evolution may be associated with both hydrodynamic and non-hydrodynamic modes. Furthermore, the uncertaities of initial geometry due to the internal nucleonic structure and its fluctuations will significantly degrade the predictive power of the available...
The lepton-jet momentum imbalance in deep inelastic scattering events offers a useful set of observables for unifying collinear and transverse-momentum-dependent frameworks for describing high energy Quantum Chromodynamics interactions. A recent first measurement was made [1] of this imbalance in the laboratory frame using positron-proton collision data recordedf with the H1 experiment at HERA...
In this talk, I will review the lattice QCD calculation of the electric and magnetic electric form factors and the extraction of the proton charge radius. I will use the recent work done by the NME collaboration [1], and updates to it (preliminary results with improved data sets) to illustrate the issues. These high statistics lattice QCD calculations, show that the electric and magnetic...
We present preliminary lattice QCD results from the HPQCD collaboration for the $B\to D^*$ form factors, including tensor form factors. We use these results to construct the differential decay rate, which we compare directly to experimental data. We also present a 'lattice only' determination of the ratio, $R(D^*)=\Gamma(B\to D^*\tau\overline{\nu}_\tau)/\Gamma(B\to D^*\mu\overline{\nu}_\mu)$,...
We perform a universal fit to all available electron scattering data on Carbon and Oxygen and extract the best determination of the Inelastic Coulomb Sum Rule (CSR) as a function of momentum transfer q. The longitudinal Quasielastic (QE) cross section is suppressed by a larger factor then expected from Pauli blocking only. We provide a parameterization of this “extra suppression” for use in...
This talk presents an overview of recent results on collectivity in small collision systems. At LHC energies, the measurements involves light quark hadrons, strange, charm and bottom hadrons in pp, pPb, and ultra-peripheral PbPb and pPb collisions. The collectivity results for charged hadrons from the PHENIX collaboration are also presented in pAu, dAu and 3HeAu collisions. These measurements...
Gluons constitute the bulk of the mass of the visible universe and play a major role in determining the fundamental properties of protons, neutrons and other hadrons. The one-dimensional structural properties of hadrons are partly encoded in parton distribution functions (PDFs), which capture their longitudinal momentum structure. Our knowledge of the gluon PDF of the nucleon has been...
Jefferson Lab is facing a time of change, unprecedented since the founding of the Lab, by diversifying and expanding its scientific mission, in partnership with DOE-SC. Over the next decade Jefferson Lab will be delivering on the 12 GeV program while laying the groundwork for CEBAF’s future role in Nuclear Physics. Upgrades for higher luminosity, polarized and unpolarized positron beams, and...
Quantum Chromodynamics allows for the formation of parity-odd domains inside the medium produced in heavy-ion collisions associated with a net chirality of the quarks. Thus one local $CP$ violation phenomenal, Chiral Magnetic Effect (CME), is allowed in the heavy-ion collisions. In the past two decades, many experimental researchers are looking for such an effect with different observables and...
Precision measurements of observables in nuclear and neutron beta decay to provide important information on the structure and symmetries of the weak interaction at low energy. Among the empirical foundations of the electroweak Standard Model the assumptions of maximal parity violation, vector and axial-vector character and massless neutrinos are directly related to the experiments performed...
The TRIUMF ultracold advanced neutron (TUCAN) electric dipole moment (EDM) experiment aims to constrain the neutron's electric dipole moment by an order magnitude over the current sensitivity. The experiment employs a magnetically shielded Ramsey Resonance based EDM apparatus employing ultracold neutrons from a spallation based isopure Helium-II UCN source, currently under construction at...
Recent results on exotic resonances obtained from the proton-proton collision data taken by the ATLAS experiment will be presented. A study of $J/\psi\ p$ resonances in $\Lambda_b \to J/\psi\ p\ K$ decays with large $m(pK)$ invariant masses will be reported. Studies of $Z_c$ states in $B$-meson decays with the Run 2 data at 13 TeV will be discussed. Searches for exotic resonances in 4 muon...
Cosmogenic background is increasingly recognized as being important for dark matter direct detection experiments, especially as other sources of background have been well-understood and massively reduced, so as to increase the sensitivity for detecting rare dark matter events. This key background in NaI(Tl) arises from the cosmogenic radioisotopes like $^3$H and $^{22}$Na, that are low in the...
We apply Bayesian approach to construct a large number of minimally constrained equations of state (EoSs) and study their correlations with a few selected properties of a neutron star (NS). Our set of minimal constraints includes a few basic properties of saturated nuclear matter and low density pure neutron
matter EoS which is obtained from a precise next-to-next-to-next-to-leading order...
In the helium nucleus each proton absorbs two neutrons and repels the other proton. In a way, the resultant of these forces is zero, so our structure is stable. given that the repulsion between two protons that is equal to the absorption between an electron and a proton, is much more than the absorption between the neutron and the proton, so it could be concluded that the free space(distance)...
We present fits to determine parton distribution functions (PDFs) using a diverse set of measurements from the ATLAS experiment at the LHC, including inclusive W and Z boson production, ttbar production, W+jets and Z+jets production, inclusive jet production and direct photon production. These ATLAS measurements are used in combination with deep-inelastic scattering data from HERA. Particular...
We present fits to determine parton distribution functions (PDFs) using a diverse set of measurements from the ATLAS experiment at the LHC, including inclusive W and Z boson production, ttbar production, W+jets and Z+jets production, inclusive jet production and direct photon production. These ATLAS measurements are used in combination with deep-inelastic scattering data from HERA. Particular...
Relativistic heavy-ion beams at the LHC are accompanied by a large flux of equivalent photons, leading to multiple photon-induced processes. This talk presents a series of measurements of such processes performed by the ATLAS Collaboration. New measurements of exclusive dilepton production (electron, muon, and tau pairs) are discussed. Furthermore, the tau-pair production measurements can...
This plenary talk presents an overview of recent ATLAS measurements related to heavy flavor quark production, modification, and collective motion in small and large collision systems, detailed studies of the collective behavior of bulk particles in large collision systems, and recent measurements in proton-lead, photon-nucleus, and proton-proton collisions aimed at addressing open questions...
Abstract ––a 35 minute presentation plus time for Q & A
Evidence of dark energy found on earth is commonplace. Just strike a match and the atom electrons fueled by dark energy drive light photons out instantaneously at 186,282 miles per second.
That power source is an energy currently undetected by any sensing instruments known beyond our own eyesight. Further, that energy exercise is...
In dark sector theories, DM is just one particle within a hidden sector of the Universe that could be every bit as complex as our own. This can lead to a wide range of exotic signatures that could be observed at the LHC, including long-lived particles, DM scattering and millicharged particles. As these signatures are often invisible to general purpose detectors, in this talk I will focus on...
The Belle II experiment has collected e+e- collision data near the Upsilon(4S) resonance since 2019 at the SuperKEKB accelerator. Recent results from those data in beauty, charm and tau decays will be presented.
Both SIDIS and e+e- annihilation provide clean and complimentary environments to study hadronization. While the e+e- annihilation cross-section is independent of a non-perturbative partonic initial state, SIDIS data enables more sensitivity to the flavor dependence of the hadronization process.
With record setting datasets being collected in SIDIS by the CLAS12 experiment and in e+e- by the...
Several experimental measurements of $b$-decays have suggested the presence of physics beyond the Standard Model (BSM). One set of such measurements are the decay modes $B\to D^{*+}\ell^- \bar{\nu}$ with $\ell = e, \mu,$ and $\tau$. A recent analysis of 2019 Belle data found $\Delta A_{FB} = A_{FB}(B\to D^{*} \mu\nu) - A_{FB} (B\to D^{*} e\nu)$ to be $4.1\sigma$ away from the SM prediction....
The unexpected downward slope of deep inelastic scattering ratios heavier nuclei to deuterium in the valence quark region is now nearly a 40-year-old puzzle. While a tremendous theoretical effort has gone into understanding the root cause of the effect, the problem wasn’t lack of being able to describe the data, it was that nearly every model could. In the early 21st century,...
