e^+e^- production from pp reactions at BEVALAC energies
arXiv:nucl-th/9903009 · doi:10.1016/S0375-9474(99)00300-0
Abstract
We have performed a detailed study of dilepton production from pp collisions including the subthreshold $Ï$ production via baryonic resonances (N(1520), N(1700)) in addition to the conventional dilepton sources as $Ï^0, η, Ï$ and $Î$ Dalitz decays and direct decays of vector mesons ($Ï, Ï$). The role of baryonic resonances in $Ï$ production from nucleon-nucleon collisions is studied in comparison to the DLS data which are well described.
19 pages, revtex, including 7 postscript figures, to be published in Nucl. Phys. A