1-12 K*0∧Photoproduction off a Neutron  

作　　者：He Jun 

机构地区：[1]不详

出　　处：《IMP & HIRFL Annual Report》2016年第1期21-22,共2页中国科学院近代物理研究所和兰州重离子研究装置年报（英文版）

基　　金：National Basic Research Program of China(973 Program)(2014CB845405),National Natural Science Foundation of China(11275235,11035006)。

摘　　要：In recent years,the strange meson photoproductions are widely investigated in both experiment and theory.Theγn→K*0Λreaction attracts special attention because of its absence of the contact term,which is usually dominant in a photoproduction process[1-6].The interaction mechanism includes the s channel with nucleon and its resonances,t channels with K andκexchanges,and the u channel with hyperon(Λ,ΣandΣ*).The t-channel K*exchange vanishes also because of the neutral charge of final K*.Usually,the contribution from the s channel with the nucleon pole is very small and negligible,and the u-channel contribution is important only at backward angles[2,3].Hence,theγn→K*0Λreaction is a very ideal channel to investigate the nucleon resonances and the t-channel K andκexchanges.

关 键 词：OFF FINAL IDEAL its IS 

分 类 号：O435[机械工程—光学工程]