2014/07/01 by Justin R. Stevens, Stevens, Justin R.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Nuclear Experiment (nucl-ex) #hep-ex #nucl-ex
paper · pdf · doi:10.48550/arxiv.1407.0404
6 pages, 3 figures, contribution to the proceedings of XXII. International Workshop on Deep-Inelastic Scattering and Related Subjects, 28 Apr - 2 May, 2014, Warsaw, Poland
arxiv created 2014/07/01 · arxiv updated 2014/07/03
One of the primary goals of the spin program at the Relativistic Heavy Ion Collider (RHIC) is to determine the polarization of the sea quarks and gluons in the proton. The polarization of the sea quarks is probed through the production of W-(+) bosons via the annihilation of u+d (d+u), at leading order. In this proceedings we report measurements of the single-spin asymmetry, AL, for W boson production at √(s) = 510 GeV, and the new constraints these results place on the antiquark helicity distributions. Recent results on the longitudinal double-spin asymmetry, ALL, for inclusive and di-jet production at √(s) = 200 GeV are also presented. The inclusive jet results provide the first experimental indication of non-zero gluon polarization in the x range probed at RHIC.