Low mass dimuons within a hybrid approach

Abstract

We analyse dilepton emission from hot and dense hadronic matter using a hybrid approach based on the Ultrarelativistic Quantum Molecular Dynamics (UrQMD) transport model with an intermediate hydrodynamic stage for the description of heavy-ion collisions at relativistic energies. Focusing on the enhancement with respect to the contribution from long-lived hadron decays after freeze-out observed at the SPS in the low mass region of the dilepton spectra (often referred to as "the excess"), the relative importance of the emission from the equilibrium and the non-equilibrium stages is discussed.

Proceedings of Hot Quarks 2010, 21-26 June 2010 Las Londe Les Maures; v2: Corrected typos and added a comment

References in corpus (5)

• Fully integrated transport approach to heavy ion reactions with an intermediate hydrodynamic stage
• NA60 results on thermal dimuons
• Production and evolution path of dileptons at HADES energies
• Dilepton production in heavy-ion collisions with in-medium spectral functions of vector mesons
• $<m_T>$ excitation function: Freeze-out and equation of state dependence

Cited by in corpus (1)

• Dimuon radiation at the CERN SPS within a (3+1)d hydrodynamic+cascade model