Theta+ formation in inclusive gamma D -> pK- X
| dc.creator | Titov, A. I. | |
| dc.creator | Kämpfer, B. | |
| dc.creator | Daté, S. | |
| dc.creator | Ohashi, Y. | |
| dc.date | 2006-07-26 | |
| dc.date.accessioned | 2026-07-07T11:28:22Z | |
| dc.date.available | 2026-07-07T11:28:22Z | |
| dc.description | We analyze the possibility to produce an intermediate Theta^+ via a KN->Θ+ formation process in gamma D-> pK^- X (X=nK^+,pK^0) reactions at some specific kinematical conditions, in which a pK^- pair is knocked out in the forward direction and its invariant mass is close to the mass of Lambda(1520). The Θ^+ signal may appear in the [γD,pK^-] missing mass distribution. The ratio of the signal (cross section at the Θ^+ peak position) to the smooth background processes varies from 0.7 to 2.5 depending on the spin and parity of Theta+, and it decreases correspondingly if the pK^- invariant mass is outside of the Lambda(1520)-resonance region. We analyze the recent CLAS search for the Theta+ in the gamma D ->pK^-nK^+ reaction and show that the conditions of this experiment greatly reduce the Theta+ formation process making it difficult to extract a Theta+ peak from the data. | |
| dc.description | 40 pageg, 26 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0607054 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0607054 | |
| dc.identifier | Phys.Rev.C74:055206,2006 | |
| dc.identifier | doi:10.1103/PhysRevC.74.055206 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/196423 | |
| dc.subject | Nuclear Theory | |
| dc.title | Theta+ formation in inclusive gamma D -> pK- X | |
| dc.type | text |