2008/02/29 by Hyun-Chul Kim, Tim Ledwig, K. Goeke +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1142/s0217732308029101
published as Mod.Phys.Lett.A23:2238-2241,2008 · 5 pages. No figure. Final version. A talk presented at International Workshop Chiral07, Osaka, Japan, 13-16 Nov 2007
arxiv created 2008/05/09 · openalex publication_date 2008/09/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present in this talk recent results of the vector and axial-vector transitions of the nucleon to the pentaquark baryon Θ + , based on the SU(3) chiral quark-soliton model. The results are summarized as follows: K * NΘ vector and tensor coupling constants turn out to be g K*NΘ ≃ 0.81 and f K*NΘ ≃ 0.84, respectively, and the KNΘ axial-vector coupling constant to be [Formula: see text]. As a result, the total decay width for Θ + → NK becomes very small: Γ Θ→NK ≃ 0.71 MeV , which is consistent with the DIANA result Γ Θ→NK = 0.36 ± 0.11 MeV .