Photon induced Lambda(1520) production and the role of the K^* exchange
| dc.creator | Toki, Hiroshi | |
| dc.creator | Garcia-Recio, Carmen | |
| dc.creator | Nieves, Juan | |
| dc.date | 2007-11-22 | |
| dc.date.accessioned | 2026-07-07T11:13:21Z | |
| dc.date.available | 2026-07-07T11:13:21Z | |
| dc.description | We study the photon induced Lambda(1520) production in the effective Lagrangian method near threshold, E_γ^{LAB}<2 GeV, and in the quark-gluon string model at higher energies 3 GeV < E_γ^{LAB} < 5 GeV. In particular, we study the role of the K^* exchange for the production of Lambda(1520) within the SU(6) Weinberg-Tomozowa chiral unitary model proposed in Phys. Rev. D74 (2006) 034025. The coupling of the Lambda(1520) resonance to the N \bar K^* pair, which is dynamically generated, turns out to be relatively small and, thus, the K exchange mechanism dominates the reaction. In the higher energy region, where experimental data are available, the quark-gluon string mechanism with the K Regge trajectory reproduces both the energy and the angular distribution dependences of the Lambda(1520) photo-production reaction. | |
| dc.description | 20 pages and 6 pages | |
| dc.identifier | https://arxiv.org/abs/0711.3536 | |
| dc.identifier | http://arxiv.org/abs/0711.3536 | |
| dc.identifier | Phys.Rev.D77:034001,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.034001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/191687 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Photon induced Lambda(1520) production and the role of the K^* exchange | |
| dc.type | text |