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Probing in-medium vector meson decays by double-differential di-electron spectra in heavy-ion collisions at SIS energies

Gy. Wolf·O. P. Pavlenko·B. Kampfer
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Abstract

Within a transport code simulation for heavy-ion collisions at bombarding energies around 1 AGeV, we demonstrate that double-differential di-electron spectra with suitable kinematical cuts are useful to isolate (i) the $ρ$ meson peak even in case of strong broadening, and (ii) the in-medium $ω$ decay contribution. The expected in-medium modifications of the vector meson spectral densities can thus be probed in this energy range via the di-electron channel.

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Gy. Wolf, O. P. Pavlenko, B. Kampfer. 2003-06-23. Probing in-medium vector meson decays by double-differential di-electron spectra in heavy-ion collisions at SIS energies. https://doi.org/10.1140/epjst%2Fe2008-00604-4

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