In-medium vector mesons and low mass lepton pairs from heavy ion collisions

Abstract

The rho and omega meson self-energy at finite temperature and baryon density have been analysed for an exhaustive set of mesonic and baryonic loops in the real time formulation of thermal field theory. The large enhancement of spectral strength below the nominal rho mass is seen to cause a substantial enhancement in dilepton pair yield in this mass region. The integrated yield after space-time evolution using relativistic hydrodynamics with quark gluon plasma in the initial state leads to a very good agreement with the experimental data from In-In collisions obtained by the NA60 collaboration.

Invited Talk at the DAE-BRNS Workshop on Hadron Physics, Bhabha Atomic Research Centre, Mumbai, India, October 31-November 4, 2011

References in corpus (7)

• The QCD equation of state with dynamical quarks
• On the Strongly-Interacting Low-Viscosity Matter Created in Relativistic Nuclear Collisions
• NA60 results on thermal dimuons
• Evidence for radial flow of thermal dileptons in high-energy nuclear collisions
• The spectral function of the omega meson in nuclear matter from a coupled-channel resonance model
• Real-time propagators at finite temperature and chemical potential
• $\rho$ self energy at finite temperature and density in the real-time formalism

Cited by in corpus (8)

• Electrical conductivity of hadronic matter from different possible mesonic and baryonic thermal fluctuations
• Dilepton production from magnetized quark matter with an anomalous magnetic moment of the quarks using a three-flavor PNJL model
• $\Delta$ self-energy at finite temperature and density and the $\pi N$ cross-section
• Dilepton production from hot and magnetized hadronic matter
• Dimuon production from in-medium rho decays from QCD sum rules
• Dilepton production from chirally asymmetric matter
• Analysis of $\omega$ self-energy at finite temperature and density in the real-time formalism
• Electromagnetic spectral functions in hot and dense chirally imbalanced quark matter