Strange Meson Radiative Capture on the Proton in Low Energy QCD Lagrangian  

作　　者：ZHOULi－Juan MAWei－Xing 

机构地区：[1]DepartmentofInformationandComputingScience,GuangxiUniversityofTechnology,Liuzhou545006,China [2]InstituteofHighEnergyPhysics,theChineseAcademyofSciences,Beijing100039,China Institute

出　　处：《Communications in Theoretical Physics》2002年第3期333-336,共4页理论物理通讯（英文版）

基　　金：国家自然科学基金

摘　　要：Based on our low energy QCD Lagrangian description of strange meson photoproduction off the proton and the crossing symmetry, the strange meson radiative capture on the proton, , is investigated in the quark model of baryon structure with the same input parameter, the only strong coupling constant , as that in the strange meson photoproduction off the proton , a crossing channel of the capture reaction. A good agreement on the branching ratio between the predictions and data is obtained successfully. This excellent fit indicates that our low energy QCD Lagrangian theory with only one free parameter is an advanced and unified description of strange meson photoproduction and its associated radiative capture.

关 键 词：low energy QCD quarks and gluons K+ photoproduction K- radiative capture 

分 类 号：O572.243[理学—粒子物理与原子核物理]