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28 March 2024
 
  » arxiv » hep-ph/0402219

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J/Psi Production in pp Collisions at sqrt s = 200 GeV at RHIC
Fred Cooper ; Ming X. Liu ; Gouranga C. Nayak ;
Date 23 Feb 2004
Journal Phys.Rev.Lett. 93 (2004) 171801
Subject hep-ph hep-ex nucl-ex nucl-th
AffiliationNSF and LANL), Ming X. Liu (LANL) and Gouranga C. Nayak (Stony Brook
AbstractWe study J/psi production in pp collisions at RHIC within the PHENIX detector acceptance range using the color singlet and color octet mechanism which are based on pQCD and NRQCD. Here we show that the color octet mechanism reproduces the RHIC data for J/psi production in pp collisions with respect to the p_T distribution, the rapidity distribution and the total cross section at sqrt s = 200 GeV. The color singlet mechanism leads to a relatively small contribution to the total cross section when compared to the octet contribution.
Source arXiv, hep-ph/0402219
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