arXiv:hep-ph/0204180·v2·High Energy Physics — Phenomenology
The High E_T Drop of J/psi to Drell-Yan Ratio from the Statistical c anti-c Coalescence Model
A.P. Kostyuk🇩🇪 · M.I. Gorenstein🇺🇦 · H. Stoecker🇩🇪 · W. Greiner🇩🇪
Abstract
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.
Comments: 14 pages, REVTeX, 1 PS-figure. v2: References are corrected and updated