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

1994/07/08 by G. Q. Li, G.Q. Li, C. M. Ko +1 · 3 citations
Chemistry · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #nucl-th

paper · pdf · doi:10.1016/0375-9474(94)00500-m

published as Nucl.Phys. A582 (1995) 731-748 · 22 pages, 11 figures available upon request to [email protected]

arxiv created 1994/07/08 · openalex publication_date 1995/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

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.

Cited by

• Kaon condensation and lambda–nucleon loop in the relativistic mean-field approach
• Dilepton production at SPS energies
• Phi meson production cross sections in pion-baryon and baryon-baryon interactions