15th Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2025) Madison Wisconsin June 9-13

Session

Joint PPHI, Symmetries/EW,. PGDNN

Jun 12, 2025, 2:00 PM

Conveners

Joint PPHI, Symmetries/EW,. PGDNN: Parallel 7

• Paul King (Ohio University)

277. Constraints on the weak mixing angle from future facilities

Wally Melnitchouk

6/12/25, 2:00 PM

Parton and Gluon Distributions in Nucleons and Nuclei

Parallel session presentation

We review the constraints on the weak mixing angle, sin2θw, that can be expected in global QCD analyses from electron scattering experiments, such as parity-violating DIS, at current and future facilities, including JLab at 22 GeV and the Electron-Ion Collider.

243. Measuring the Weak Charge of the Electron - The MOLLER Experiment

Kent Paschke (University of Virginia)

6/12/25, 2:25 PM

Precision Physics at High Intensities

Parallel session presentation

The MOLLER experiment has been designed to significantly expand the reach for new dynamics beyond the Standard Model of electroweak interactions. Using the high intensity, high precision electron beam at Jefferson Lab, MOLLER measure the parity-violating asymmetry in the scattering of longitudinally polarized electrons off unpolarized electrons to an overall fractional accuracy of 2.4%. This...

245. A high precision determination of the weak mixing angle at low momentum transfer - The P2 experiment

Caryn Palatchi (Indiana University)

6/12/25, 2:50 PM

Precision Physics at High Intensities

Parallel session presentation

The P2 experiment aims for a new determination of the weak mixing angle at a very low momentum transfer. This parity violating electron scattering experiment will be carried out at the new electron accelerator MESA in Mainz, Germany. The parity violating asymmetry of the elastic scattering of polarized electrons off of protons in a liquid hydrogen unpolarized target is of order 20 parts per...

259. NOPTREX: Neutron Optics Parity and Time Reversal Experiment

Sepehr Samiei (Indiana University)

6/12/25, 3:15 PM

Tests of Symmetries and the Electroweak Interaction

Parallel session presentation

The NOPTREX collaboration is engaged in three distinct but related scientific activities as follows:(1) a P-odd/T-odd test in polarized neutron forward transmission in polarized 139La, (2) a P-even/T-odd test in polarized neutron transmission through tensor aligned 127I, and (3) improved (n, \gamma) spectroscopy for better determination of mean square matrix element <M^{2}> in heavy nuclei....