Upsilon measurement in STAR

Details Upsilon measurement in STAR Upsilon measurement in STAR

2007-06-06

arxiv.org/abs/0706.0892v1

Int.J.Mod.Phys.E16:2110-2115,2007

Physics

Nuclear Physics

Nuclear Experiment

6 pages, 3 figures, proceedings for Quark Matter 2006

Scientific paper

10.1142/S0218301307007544

We present preliminary results of Upsilon production in p+p collisions at sqrt(s)=200 GeV at central rapidity. This measurement was performed at the STAR experiment through the Upsilon->e^+e^- decay channel. In this manuscript we describe the experimental details, from the development of a specially designed trigger setup to the analysis methods used to discriminate electrons from hadrons. The production cross-section obtained B*{(dsigma/dy)|(y=0)}=91(28)(22) pb is compatible with our expectations based on pQCD calculations.

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