Dijet Cross Section And Longitudinal Double Spin Asymmetry Measurements In Polarized Proton-Proton Collisions At Root S=200 Gev At Star

These proceedings show the preliminary results of the dijet cross sections and the dijet longitudinal double spin asymmetries A(LL) in polarized proton-proton collisions at root s = 200 GeV at the mid-rapidity vertical bar eta vertical bar <= 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 M-jj. The dijet cross sections are in agreement with next-to-leading-order pQCD predictions. The A(LL) 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.