Can dileptons reveal the in-medium properties of vector mesons?

Details Can dileptons reveal the in-medium properties of vector mesons? Can dileptons reveal the in-medium properties of vector mesons?

1994-07-08

arxiv.org/abs/nucl-th/9407016v1

Nucl.Phys. A582 (1995) 731-748

Physics

Nuclear Physics

Nuclear Theory

22 pages, 11 figures available upon request to gqli@comp.tamu.edu

Scientific paper

10.1016/0375-9474(94)00500-M

Dilepton production from both pion-pion and kaon-antikaon annihilation in heavy-ion collisions is studied using the relativistic transport model. The formation of a rho meson from pion-pion annihilation and a phi meson from kaon-antikaon annihilation, their propagation in the medium, and their decay into dileptons are explicitly treated. Including the medium modifications of the masses and widths of vector mesons as predicted by the QCD sum-rule calculations, we study their effects on the dilepton invariant mass spectra from heavy-ion collisions at SIS/GSI energies.

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