Baryonic contributions to e+e- yields in a hydrodynamic model of Pb+Au collisions at the SPS

Details Baryonic contributions to e+e- yields in a hydrodynamic model of Pb+Au collisions at the SPS Baryonic contributions to e+e- yields in a hydrodynamic model of Pb+Au collisions at the SPS

1999-07-16

arxiv.org/abs/nucl-th/9907064v1

Nucl.Phys. A661 (1999) 522-525

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures, proceedings of Quark Matter 99

Scientific paper

We analyze e+e- yields from matter containing baryons in addition to mesons using a hydrodynamic approach to describe Pb+Au collisions at 158 A GeV/c. We use two distinctly different e+e- production rates to provide contrast. Although the presence of baryons leads to significant enhancement of e+e- emission relative to that from mesons-only matter, the calculated results fall below the data in the range 400 < M/MeV < 600. The calculated results are, however, only 1.3-1.5 standard deviations below the data, which may not be statistically significant.

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