Low energy scattering and photoproduction of $η$-mesons on deuterons
| dc.creator | Shevchenko, N. V. | |
| dc.creator | Belyaev, V. B. | |
| dc.creator | Rakityansky, S. A. | |
| dc.creator | Sofianos, S. A. | |
| dc.creator | Sandhas, W. | |
| dc.date | 2000-11-08 | |
| dc.date | 2001-05-17 | |
| dc.date.accessioned | 2026-07-07T05:38:19Z | |
| dc.date.available | 2026-07-07T05:38:19Z | |
| dc.description | Photo-production of $η$-mesons and their collisions with light nuclei are studied within the Alt-Grassberger-Sandhas (AGS) formalism for different parameters of $ηN$ interaction. A three-body resonance or a quasi-bound state is found close to the $ηd$ threshold. Expected manifestation of this resonant behavior of $ηd$ elastic scattering in various processes involving $ηd$-system in their final states was found in calculations of the $γd \to ηd$ reaction in the framework of modified AGS equations. These calculations revealed peaks in the energy dependence of the total cross-section almost at the same energies as in the elastic $ηd$ scattering. Meanwhile, such peaks did not appear in the impulse approximation (i.e. when $ηd$ resonance was not taken into account). This sheds some light on the nature of the enhancement of $η$ photo-production on deuteron observed recently in the low energy experiments. | |
| dc.description | 11 pages, LaTex, 9 eps figures, 1 table; reference list was corrected and acknowledgments were added. Talk given at the IX International seminar "Electromagnetic interactions of nuclei at low and medium energies", INR, Moscow, 20-22 September 2000; to be published in the proceedings | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0011027 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0011027 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/81576 | |
| dc.subject | Nuclear Theory | |
| dc.title | Low energy scattering and photoproduction of $η$-mesons on deuterons | |
| dc.type | text |