Thermal Dileptons from a Nonperturbative Quark-Gluon Phase

Details Thermal Dileptons from a Nonperturbative Quark-Gluon Phase Thermal Dileptons from a Nonperturbative Quark-Gluon Phase

1998-09-17

arxiv.org/abs/hep-ph/9809440v2

Phys.Lett. B448 (1999) 168-173

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 6 figures, reference added

Scientific paper

10.1016/S0370-2693(99)00061-1

Assuming that gluon condensates are important even above the deconfining phase transition, we develop a model for the dilepton yield from a quark gluon plasma. Using a simple fire ball description of a heavy ion collision, and various estimates of the strengths of the gluon condensates, we compare our predicted dilepton yields with those observed in the CERES and HELIOS experiments at CERN. The simple model gives an adequate description of the data, and in particular it explains the observed considerable enhancement of the yield in the low mass region.

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