arXiv:nucl-th/9905016·v1·Nuclear Theory
Dilepton Production from Rho-Mesons in a Quark-Gluon Plasma
Markus H. Thoma🇩🇪 · Stefan Leupold🇩🇪 · Ulrich Mosel🇩🇪
Abstract
Assuming that rho-mesons exist in a quark-gluon plasma close to the QCD phase transition, we calculate the dilepton production rate from quark-antiquark annihilation via a rho-meson state using Vector Meson Dominance. The result is compared to the rates from direct quark-antiquark annihilation and from pion annihilation. Furthermore we discuss the suppression of low mass dileptons if the quarks assume an effective mass in the quark-gluon plasma.
Comments: 10 pages, REVTEX, 5 PostScript figures