Speaker
Description
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 our understanding of the subjects. The longitudinal double spin asymmetries ($A_{LL}$) of various final state particle production in polarized $\vec{p}+\vec{p}$ collisions at RHIC energies give direct access to the gluon polarization inside the proton. On the other hand, the transverse single spin asymmetries ($A_N$) of a variety of particle production in collisions between a polarized proton and a proton or ion ($p^{\uparrow}+p/A$) in different pseudorapidity regions provide variable sensitivities to different mechanisms that give rise to the $A_N$. This talk will highlight the recent $A_{LL}$ and $A_N$ measurements from direct photons, neutral and charged hadrons, jets, and open heavy flavor in 200 and 510 GeV collisions.
