1998/09/23 by Cheuk-Yin Wong, Wong, Cheuk-Yin
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.hep-ph/9809497
10 pages, 4 figures, in LaTex, talk presented at Workshop on Charmonium Production in Relativistic Nuclear Collisions, Institute of Nuclear Theory, Seattle, May 18-22, 1998, to be published in the Proceedings
arxiv created 1998/10/06 · arxiv updated 2009/11/30
We use the Drell-Yan differential distribution dNDYAB/dET in high-energy nucleus-nucleus collisions to obtain a relation between the transverse energy ET and the impact parameter b. Such a relation is then utilized to study the transverse-energy dependence of J/psi production in Pb-Pb collisions, using the J/psi absorption model presented previously. The anomalous Pb-Pb suppression data at 158A GeV can be explained if one assumes the occurrence of a new phase of strong J/psi absorption when the energy density exceeds 4.2 GeV/fm3. The results are extended to make predictions for J/psi production at higher collision energies. It is found that J/psi survival probabilities reach the lowest survival limit when the nucleon-nucleon center-of-mass energies is greater than about 35 GeV.