dorsal/arxiv
View Schemae^+e^- Pair Production from $\gamma$ A Reactions
| Authors | M. Effenberger, E. L. Bratkovskaya, U. Mosel |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9903026 |
| URL | https://arxiv.org/abs/nucl-th/9903026 |
| DOI | 10.1103/PhysRevC.60.044614 |
| Journal | Phys.Rev.C60:044614,1999 |
Abstract
We present a calculation of e^+e^- production in $\gamma A$ reactions at MAMI and TJNAF energies within a semi-classical BUU transport model. Dilepton invariant mass spectra for $\gamma$C, $\gamma$Ca and $\gamma$Pb are calculated at 0.8, 1.5 and 2.2 GeV. We focus on observable effects of medium modifications of the $\rho$ and $\omega$ mesons. The in-medium widths of these mesons are taken into account in a dynamical, consistent way. We discuss the transport theoretical treatment of broad resonances.
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"abstract": "We present a calculation of e^+e^- production in $\\gamma A$ reactions at MAMI\nand TJNAF energies within a semi-classical BUU transport model. Dilepton\ninvariant mass spectra for $\\gamma$C, $\\gamma$Ca and $\\gamma$Pb are calculated\nat 0.8, 1.5 and 2.2 GeV. We focus on observable effects of medium modifications\nof the $\\rho$ and $\\omega$ mesons. The in-medium widths of these mesons are\ntaken into account in a dynamical, consistent way. We discuss the transport\ntheoretical treatment of broad resonances.",
"arxiv_id": "nucl-th/9903026",
"authors": [
"M. Effenberger",
"E. L. Bratkovskaya",
"U. Mosel"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.60.044614",
"journal_ref": "Phys.Rev.C60:044614,1999",
"title": "e^+e^- Pair Production from $\\gamma$ A Reactions",
"url": "https://arxiv.org/abs/nucl-th/9903026"
},
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