Dilepton production from non-equilibrium hot hadronic matter

Details Dilepton production from non-equilibrium hot hadronic matter Dilepton production from non-equilibrium hot hadronic matter

2005-04-28

arxiv.org/abs/hep-ph/0504278v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures, To appear in the proceedings of the 43rd International Winter Meeting on Nuclear Physics, Bormio, Italy, 1

Scientific paper

It is investigated under which conditions an adiabatic adaption of the dynamic and spectral information of vector mesons to the changing medium in heavy ion collisions, as assumed in schematic model calculations and microscopic transport simulations, is a valid assumption. Therefore time dependent medium modifications of low mass vector mesons are studied within a non-equilibrium quantum field theoretical description. Timescales for the adaption of the spectral properties are given and non-equilibrium dilepton yields are calculated, leading to the result that memory effects are not negligible for most scenarios.

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