Dijet Cross Section and Longitudinal Double Spin Asymmetry Measurements in Polarized Proton-proton Collisions at s=200 GeV at STAR
Abstract
These proceedings show the preliminary results of the dijet cross sections and the dijet longitudinal double spin asymmetries ALL in polarized proton-proton collisions at s = 200 GeV at the mid-rapidity |eta| < 0.8. The integrated luminosity of 5.39 pb-1 collected during RHIC Run-6 was used in the measurements. The preliminary results are presented as functions of the dijet invariant mass Mjj. The dijet cross sections are in agreement with next-to-leading-order pQCD predictions. The ALL is compared with theoretical predictions based on various parameterizations of polarized parton distributions of the proton. Projected precision of data analyzed to date from Run-9 are shown.
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