Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2008-05-20
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages, 2 figures, to appear in the proceedings of the Lake Louise Winter Institute 2008, February 2008
Scientific paper
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 $pb^{-1}$ 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.
for the STAR Collaboration
Staszak David
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