Low-mass dileptons at the SPS

Abstract

We use a simple QCD-based model to study particle production in S+Au collisions at 200 GeV/n. A requisite consistency is met for the hadronic observables (pi0 and pi- spectra) while pursuing estimates for e+e- production. Since radiative decays of initially produced hadrons has accounted for only a portion of the observed dileptons at the CERN SPS, we search for additional mechanisms. By including contributions from prompt secondary hadronic scatterings, pi rho -> pi e+e-, and adding to pi+ pi- annihilation and hadronic decays, the ``excess'' dilepton signal can possibly be interpreted.

14 pages of LaTex and 5 postscript figures submitted Phys Rev D

References in corpus (11)

• Global QCD Analysis and the CTEQ Parton Distributions
• Enhancement of low-mass dileptons in heavy-ion collisions
• Medium Modifications of the Rho Meson at CERN/SPS Energies
• Dilepton Production at SPS Energies
• Photon production through $A_1$ resonance in high energy heavy ion collisions
• The Return of The Prodigal Goldstone Boson
• Causality Violations in Cascade Models of Nuclear Collisions
• Excess electron pairs from heavy-ion collisions at CERN and a more complete picture of thermal production
• Thermal Dileptons from pi - rho Interactions in a Hot Pion Gas
• Thermal effects on dilepton production from $\pi -\pi$ annihilation
• On the mean free paths of pions and kaons in hot hadronic matter

Cited by in corpus (4)

• Various Models for Pion Probability Distributions from Heavy-Ion Collisions
• Spectral Function of rho in Dense and Hot Hadronic Matter
• Disoriented Chiral Condensates, Pion Probability Distributions and Parallels with Disordered System
• $\rho$ meson broadening and dilepton production in heavy ion collisions