First Measurement Of The Jet Cross Section In Polarized p+p Collisions At $\sqrt{s}=200 $ GeV

Abstract

We present preliminary measurements of the inclusive jet cross section in the transverse momentum region 5<$p_{T}$<50 GeV/\textit{c} from 0.2 $pb^{-1}$ of polarized p+p data at $\sqrt{s}$=200 GeV. The data were corrected for detector inefficiency and resolution using PYTHIA events processed through a full GEANT simulation. The measured jet cross section agrees well with NLO pQCD calculations over seven orders of magnitude. These "proof of principal" measurements pave the way for ongoing analyses of the higher statistics ($\sim$ 3 $pb^{-1}$) data sample from the 2005 RHIC run.