Accesing the Gluon Polarization through the Double Longitudinal Spin Asymmetrie in Charged Pion Production at PHENIX
arXiv:0707.1371 · doi:10.1063/1.2750796
Abstract
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.
4 pages, 4 figures, Spin2006 conference, proceedings