Off-shell effects in dilepton production from hot interacting mesons
نویسندگان
چکیده
The production of dielectrons in reactions involving a1 mesons and pions is studied. We compare results obtained with different phenomenological Lagrangians that have been used in connection with hadronic matter and finite nuclei. We insist on the necessity for those interactions to satisfy known empirical properties of the strong interaction. Large off-shell effects in dielectron production are found and some consequences for the interpretation of heavy ion data are outlined. We also compare with results obtained using experimentally-extracted spectral functions.
منابع مشابه
O - shell e ects in dilepton production from hot interacting
The production of dielectrons in reactions involving a1 mesons and pions is studied. We compare results obtained with di erent phenomenological Lagrangians that have been used in connection with hadronic matter and nite nuclei. We insist on the necessity for those interactions to satisfy known empirical properties of the strong interaction. Large o -shell e ects in dielectron production are fou...
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