Inclusive Jet ALL Measurements at STAR
Abstract
We report STAR's preliminary measurement of the inclusive jet longitudinal spin asymmetry ALL 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 55-60%. The data are compared with theoretical calculations of ALL based on various GRSV models of the polarized parton distribution functions in the nucleon. Previous STAR inclusive jet ALL and cross section measurements are also presented, as is a discussion of constraints these data place on the allowed theoretical models.
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