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e^+e^- production from pp reactions at BEVALAC energies

E. L. Bratkovskaya·W. Cassing·M. Effenberger·U. Mosel
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Abstract

We have performed a detailed study of dilepton production from pp collisions including the subthreshold $ρ$ production via baryonic resonances (N(1520), N(1700)) in addition to the conventional dilepton sources as $π^0, η, ω$ and $Δ$ Dalitz decays and direct decays of vector mesons ($ρ, ω$). The role of baryonic resonances in $ρ$ production from nucleon-nucleon collisions is studied in comparison to the DLS data which are well described.

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E. L. Bratkovskaya, W. Cassing, M. Effenberger, U. Mosel. 1999-05-17. e^+e^- production from pp reactions at BEVALAC energies. https://doi.org/10.1016/s0375-9474(99)00300-0

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