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Transport calculation of dilepton production at ultrarelativistic energies

  • 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 between 300 MeV and 600 MeV depend strongly on the mass dependence of the rho 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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Metadaten
Author:Christoph Ernst, Steffen A. Bass, Sven Soff, Horst StöckerORCiDGND, Walter GreinerGND
URN:urn:nbn:de:hebis:30-7092
ArXiv Id:http://arxiv.org/abs/arXiv:nucl-th/9907118 v1
Document Type:Preprint
Language:English
Year of Completion:1999
Year of first Publication:1999
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/04/14
HeBIS-PPN:128790024
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht