Baryonic contributions to e+e- yields in a hydrodynamic model of Pb+Au collisions at the SPS
arXiv:nucl-th/9907064 · doi:10.1016/S0375-9474(99)85080-5
Abstract
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.
4 pages, 4 figures, proceedings of Quark Matter 99
References in corpus (4)
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- Sensitivity of electromagnetic spectra to equation of state and initial energy density in the Pb+Pb collisions at SPS
- e+e- yields in Pb+Au collisions at 158 AGeV/c: Assessment of baryonic contributions