Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport model

Details Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport model Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport model

2012-03-15

arxiv.org/abs/1203.3557v1

Physics

Nuclear Physics

Nuclear Theory

15 pages, 12 figures

Scientific paper

We present dilepton spectra from p+p, d+p and p+Nb reactions at SIS energies, which were simulated with the GiBUU transport model in a resonance model approach. These spectra are compared to the data published by the HADES collaboration. It is shown that the rho spectral function includes nontrivial effects already in elementary reactions, due to production via baryon resonances, which can yield large contributions to the dilepton spectrum. Dilepton spectra from nuclear reactions in the energy range of the HADES experiment are thus found to be sensitive also to properties of nucleon resonances in the nuclear medium.

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