Further evidence for N(1900)P_{13} from photoproduction of hyperons
| dc.creator | Nikonov, V. A. | |
| dc.creator | Anisovich, A. V. | |
| dc.creator | Klempt, E. | |
| dc.creator | Sarantsev, A. V. | |
| dc.creator | Thoma, U. | |
| dc.date | 2007-07-24 | |
| dc.date | 2007-11-30 | |
| dc.date.accessioned | 2026-07-07T11:18:05Z | |
| dc.date.available | 2026-07-07T11:18:05Z | |
| dc.description | We report further evidence for $N(1900)P_{13}$ from an analysis of a large variety of photo- and pion-induced reactions, in particular from the new CLAS measurements of double polarization observables for photoproduction of hyperons. The data are consistent with two classes of solutions both requiring contributions from $N(1900)P_{13}$ but giving different $N(1900)P_{13}$ pole positions. $(M-iΓ/2) = (1915\pm50)-i(90\pm25)$ MeV covers both solutions. The small elasticity of 10% or less explains why it was difficult to observe the state in $πN$ elastic scattering. $N(1900)P_{13}$ is a 2-star resonance which is predicted by symmetric three-quark models. In diquark-quark models, the existence of the state is not expected. | |
| dc.description | 13 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0707.3600 | |
| dc.identifier | http://arxiv.org/abs/0707.3600 | |
| dc.identifier | Phys.Lett.B662:245-251,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2008.03.004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/193226 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Further evidence for N(1900)P_{13} from photoproduction of hyperons | |
| dc.type | text |