Vector and axial-vector structures of the Theta^+
| dc.creator | Kim, Hyun-Chul | |
| dc.creator | Ledwig, Tim | |
| dc.creator | Goeke, Klaus | |
| dc.date | 2008-02-17 | |
| dc.date | 2008-05-09 | |
| dc.date.accessioned | 2026-07-07T11:56:06Z | |
| dc.date.available | 2026-07-07T11:56:06Z | |
| dc.description | We present in this talk recent results of the vector and axial-vector transitions of the nucleon to the pentaquark baryon Theta^{+}, based on the SU(3) chiral quark-soliton model. The results are summarized as follows: K^{*}-N-Theta vector and tensor coupling constants turn out to be g_{K^{*}N Theta} = 0.81 and f_{K^{*}N Theta}=0.84, respectively, and the KN Theta axial-vector coupling constant to be g_{A}^* = 0.05. As a result, the total decay width for Theta^+ to NK becomes very small: Gamma_{Theta -> NK} = 0.71 MeV, which is consistent with the DIANA result Gamma_{Theta -> NK}=0.36 +- 0.11 MeV. | |
| dc.description | 5 pages. No figure. Final version. A talk presented at International Workshop Chiral07, Osaka, Japan, 13-16 Nov 2007 | |
| dc.identifier | https://arxiv.org/abs/0802.2368 | |
| dc.identifier | http://arxiv.org/abs/0802.2368 | |
| dc.identifier | Mod.Phys.Lett.A23:2238-2241,2008 | |
| dc.identifier | doi:10.1142/S0217732308029101 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205471 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Vector and axial-vector structures of the Theta^+ | |
| dc.type | text |