e+e- pair production from nucleon targets in the resonance region
| dc.creator | Soyeur, Madeleine | |
| dc.creator | Lutz, Matthias F. M. | |
| dc.date | 2004-02-26 | |
| dc.date.accessioned | 2026-07-07T05:40:14Z | |
| dc.date.available | 2026-07-07T05:40:14Z | |
| dc.description | We present consistent theoretical descriptions of the $πN \to e^+e^- N$ and $γN \to e^+e^- N$ reactions on proton and neutron targets for total center of mass energies $\sqrt s$ ranging between 1.50 GeV and 1.75 GeV. These reactions are complementary to study the coupling of low-lying baryon resonances to vector meson-nucleon channels. We show in particular how the resonant structure of the amplitudes for both processes generates specific and large quantum interferences between $ρ$- and $ω$-meson decays into $e^+e^-$ pairs. Data on the $πN \to e^+e^- N$ and $γN \to e^+e^- N$ reactions are expected in the near future from the HADES program at GSI and from dilepton studies with CLAS at JLab. | |
| dc.description | 6 pages, 6 figures, Paper presented at Hirschegg 2004, 'Probing nuclei and nucleons with electrons and photons', January 12th-16th, 2004 | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0402095 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0402095 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82188 | |
| dc.subject | Nuclear Theory | |
| dc.title | e+e- pair production from nucleon targets in the resonance region | |
| dc.type | text |