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arXiv · 0910.1541

Propagation of vector-meson spectral-functions in a BUU type transport model: Application to di-electron production

H. W. Barz·B. Kampfer·Gy. Wolf·M. Zetenyi
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Abstract

The time evolution of vector-meson spectral-functions is studied within a kinetic theory approach. We implement this formalism in a BUU type transport model. Applications focus on rho and omega mesons being important pieces for the interpretation of the di-electron invariant mass spectrum measured by the HADES collaboration for the reaction C + C at 2 AGeV bombarding energy. Since the evolution of the spectral functions is driven by the local density, the in-medium modifications are tiny for small collision systems within this approach.

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H. W. Barz, B. Kampfer, Gy. Wolf, M. Zetenyi. 2009-10-08. Propagation of vector-meson spectral-functions in a BUU type transport model: Application to di-electron production. https://arxiv.org/abs/0910.1541

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