Large pTJ/ψ production in pp, πA and AA collisions

Gavai, R. V. ; Gupta, Sourendu (1991) Large pTJ/ψ production in pp, πA and AA collisions Nuclear Physics A, 525 . pp. 479-482. ISSN 0375-9474

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Using a perturbative QCD model, we compute the production cross sections of J/ψ at large pip in pp, π a and AA collisions. Comparison of our computations with pp and πa data from CERN and Fermilab suggests that i) the model works well for pT ≥ 1.5 GeV at √ s = 20 and ii) our chosen nuclear gluon density is a good description of data. Our results for the ratio of J/ψ production in the central region of AA collisions to that in pp collisions exhibit a qualitatively similar pattern to that of the proposed signature of quark gluon plasma.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:66166
Deposited On:21 Oct 2011 09:08
Last Modified:12 Jul 2012 10:08

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