Low mass dimuons within a hybrid approach

Details Low mass dimuons within a hybrid approach Low mass dimuons within a hybrid approach

2010-09-27

arxiv.org/abs/1009.5266v2

J.Phys.Conf.Ser.270:012040,2011

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1088/1742-6596/270/1/012040

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.

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