Exploring the Spin Structure of the Proton with Two-Body Partonic Scattering at RHIC

Details Exploring the Spin Structure of the Proton with Two-Body Partonic Scattering at RHIC Exploring the Spin Structure of the Proton with Two-Body Partonic Scattering at RHIC

2006-10-17

arxiv.org/abs/hep-ex/0610051v1

Nucl.Phys.A790:485-488,2007

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 2 figures, presented at the 18th Int. IUPAP Conf. on Few-Body Problems in Physics, Santos, Sao Paulo, Brazil, August

Scientific paper

10.1016/j.nuclphysa.2007.03.082

The STAR collaboration at the Relativistic Heavy Ion Collider is using polarized proton beams at sqrt{s} = 200 GeV to study the spin structure of the proton. The first results for the double spin helicity dependence of inclusive jet production are presented along with projections for additional data taken in 2005 and 2006. When fully analyzed these data sets should place strong constraints on the possible contribution of gluonic spin to the proton spin as expressed by Delta G. Future studies using 2-jet or photon-jet coincidences to map out the gluon spin distribution vs. the gluon's momentum fraction of the proton are discussed.

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