Coherent Photoproduction of Dileptons on Light Nuclei - a New Means to Learn about Vector Mesons
| dc.creator | Post, M. | |
| dc.creator | Peters, W. | |
| dc.creator | Mosel, U. | |
| dc.date | 1999-03-01 | |
| dc.date.accessioned | 2026-07-07T05:42:57Z | |
| dc.date.available | 2026-07-07T05:42:57Z | |
| dc.description | In the last years much work has been done to learn about the properties of the $ρ$-meson in nuclear matter. In a calculation of the in-medium spectralfunction of the $ρ$ we find that it is strongly modified by baryonic resonances, especially the $D_{13}(1520)$, through its coupling to resonance-hole states. In order to test the predictions of a model for the in-medium properties of the $ρ$-meson so far mostly heavy-ion collision have been used. We argue that the coherent photoproduction of $ρ$-mesons yields additional information about the nature of the medium modification. It can be shown that the production amplitude is sensitive on the momentum dependence of the $ρ$-selfenergy. This can be used to distinguish experimentally between various models for the $ρ$ in matter. | |
| dc.description | 10 pages, 7 figures, LaTex, Talk given at the 'XXXV International Winter Meeting on Nuclear Physics', Jan 25 - 29 1999, Bormio | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9903002 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9903002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/83130 | |
| dc.subject | Nuclear Theory | |
| dc.title | Coherent Photoproduction of Dileptons on Light Nuclei - a New Means to Learn about Vector Mesons | |
| dc.type | text |