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The High E_T Drop of J/psi to Drell-Yan Ratio from the Statistical c anti-c Coalescence Model

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arxiv hep-ph/0204180 v2 pith:SW2B6XMG submitted 2002-04-16 hep-ph

The High E_T Drop of J/psi to Drell-Yan Ratio from the Statistical c anti-c Coalescence Model

classification hep-ph
keywords modelanti-ccoalescencecollisionsdrell-yandropratiostatistical
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The dependence of the J/psi yield on the transverse energy E_T in heavy ion collisions is considered within the statistical c anti-c coalescence model. The model fits the NA50 data for Pb+Pb collisions at the CERN SPS even in the high-E_T region (E_T > 100 GeV). Here E_T-fluctuations and E_T-losses in the dimuon event sample naturally create the celebrated drop in the J/psi to Drell-Yan ratio.

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