Inclusive Jet $A_{LL}$ Measurements at STAR

Abstract

We report STAR's preliminary measurement of the inclusive jet longitudinal spin asymmetry $A_{LL}$ using data from the RHIC 2006 run. The 2006 data set was taken with 200 GeV polarized proton-proton collisions and represents 4.7 $p{b}^{-1}$ of data. Typical beam polarizations were $\sim 55-60$. The data are compared with theoretical calculations of $A_{LL}$ based on various GRSV models of the polarized parton distribution functions in the nucleon. Previous STAR inclusive jet $A_{LL}$ and cross section measurements are also presented, as is a discussion of constraints these data place on the allowed theoretical models.

5 pages, 2 figures, to appear in the proceedings of the Lake Louise Winter Institute 2008, February 2008

References in corpus (1)

• Run II Jet Physics: Proceedings of the Run II QCD and Weak Boson Physics Workshop