Transport calculation of dilepton production at ultrarelativistic energies

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Dilepton spectra are calculated within the microscopic transport model UrQMD and compared to data from the CERES experiment. The invariant mass spectra in the region 300 MeV < M < 600 MeV depend strongly on the mass dependence of the $ρ$ meson decay width which is not sufficiently determined by the Vector Meson Dominance model. A consistent explanation of both the recent Pb+Au data and the proton induced data can be given without additional medium effects.

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Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/83226

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/9907118
 http://arxiv.org/abs/nucl-th/9907118

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arXiv