Photoproduction of the Θ^+ and its vector andaxial-vector structure

作     者：H.-Ch. Kim K. Goeke T. Ledwig S. i. Nam 

作者机构：Department of Physics Inha University Incheon 402-751 Republic of Korea Institut fr Theoretische Physik II Ruhr-Universitt Bochum D-44780 Bochum Germany Institut fr Kernphysik Universitt Mainz D-55099 Mainz Germany Department of Physics Chung-Yuan Christian University (CYCU) 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2009年第33卷第12期

页      面：1279-1284页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0704[理学-天文学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported by Inha University Research Grant (INHA-37453) The work of S.i.N. is supported by NSC96-2112-M033-003-MY3 from the National Science Council (NSC) of Taiwan 

主　　题：Baryon antidecuplet vector and axial-vector transition form factors chiral quark-soliton model,Photoproduction of the + 

摘      要：We present recent investigations on the vector and axial-vector transitions of the baryon antidecuplet within the framework of the self-consistent SU（3） chiral quark-soliton model, taking into account the 1/No rotational and linear mscorrections. The main contribution to the electric-like transition form factor comes from the wave-function corrections. This is a consequence of the generalized Ademollo-Gatto theorem. It is also found that in general the leading-order contributions are almost canceled by the rotational 1/No corrections. The results are summarized as follows： the vector and tensor K＇NO coupling constants, gK＊N= 0.74--0.87 and fk＊N =0.53--1.16, respectively, and F→KN = 0.71 MeV, based on the result of the KN coupling constant gKne =0.83. We also show the differential cross sections and beam asymmetries, based on the present results. We also discuss the connection of present results with the original work by Diakonov, Petrov, and Polyakov.