dorsal/arxiv
View SchemaMedium effects on meson couplings and dilepton spectra
| Authors | Agnieszka Bieniek |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0401022 |
| URL | https://arxiv.org/abs/nucl-th/0401022 |
| DOI | 10.1556/APH.22.2005.1-2.5 |
| Journal | Acta Phys.Hung. A22 (2005) 29-36 |
Abstract
The pi omega rho coupling constant is calculated in a relativistic hadronic framework incorporating nucleons and Delta(1232) isobars. Medium modifications are included. The vertex is analyzed in context of the omega to pi e+e- and rho to pi e+e- Dalitz decays in nuclear matter. A sizeable increase of the widths for these decays is found for invariant mass of dileptons in the range 0.2-0.5 GeV. This increase may help, among other medium effects, to explain the problem of the low-mass dilepton enhancement seen in relativistic heavy-ion collisions.
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"abstract": "The pi omega rho coupling constant is calculated in a relativistic hadronic\nframework incorporating nucleons and Delta(1232) isobars. Medium modifications\nare included. The vertex is analyzed in context of the omega to pi e+e- and rho\nto pi e+e- Dalitz decays in nuclear matter. A sizeable increase of the widths\nfor these decays is found for invariant mass of dileptons in the range 0.2-0.5\nGeV. This increase may help, among other medium effects, to explain the problem\nof the low-mass dilepton enhancement seen in relativistic heavy-ion collisions.",
"arxiv_id": "nucl-th/0401022",
"authors": [
"Agnieszka Bieniek"
],
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"nucl-th"
],
"doi": "10.1556/APH.22.2005.1-2.5",
"journal_ref": "Acta Phys.Hung. A22 (2005) 29-36",
"title": "Medium effects on meson couplings and dilepton spectra",
"url": "https://arxiv.org/abs/nucl-th/0401022"
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