A further analysis of $Θ^+$ production in $γ+D \to Λ+n+K^{+}$ reaction
| dc.creator | Guzey, V. | |
| dc.date | 2006-08-11 | |
| dc.date.accessioned | 2026-07-07T07:20:19Z | |
| dc.date.available | 2026-07-07T07:20:19Z | |
| dc.description | We analyse Theta+ production in the gamma+D -> Λ+n+K+ reaction and study the dependence of the gamma+D -> Λ+n+K+ differential cross section on the nK+ invariant mass and on the momentum of the final neutron p_n. We examine the important role of the interference between the signal and background contributions to the gamma+D -> Λ+n+K+ amplitude in the extraction of the Theta+ signal from the gamma+D -> Λ+n+K+ cross section. We demonstrate that as a result of the cancellation between the interference and signal contributions, the Theta+ signal almost completely washes out after the integration over p_n. This is consistent with the CLAS conclusion that no statistically significant structures in the analysis of the gamma+D -> Λ+n+K+ reaction were observed. Therefore, there is no disagreement between the theory and the experiment and the CLAS result does not refute the existence of the Theta+. | |
| dc.description | 16 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0608129 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0608129 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/114918 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | A further analysis of $Θ^+$ production in $γ+D \to Λ+n+K^{+}$ reaction | |
| dc.type | text |