Accesing the Gluon Polarization through the Double Longitudinal Spin Asymmetrie in Charged Pion Production at PHENIX

Details Accesing the Gluon Polarization through the Double Longitudinal Spin Asymmetrie in Charged Pion Production at PHENIX Accesing the Gluon Polarization through the Double Longitudinal Spin Asymmetrie in Charged Pion Production at PHENIX

2007-07-10

arxiv.org/abs/0707.1371v1

AIPConf.Proc.915:359-362,2007

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 4 figures, Spin2006 conference, proceedings

Scientific paper

10.1063/1.2750796

With proton-proton collisions at PHENIX a variety of direct channels are used to probe the proton substructure. Of the many channels available at PHENIX, charged pion measurements are expected to have sensitivity of Delta g and thus help in the global analysis that will constrain it. We present a measurement of mid-rapidity charged pion production double longitudinal spin asymmetries (ALL) at the pT range of 5-10 GeV/c at collision energies of sqrt(s) = 200 GeV.

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