Anomalous Contributions in Kaon-photoproductions

摘要：

We study kaon photoproduction from the nucleon.Using the photon beam asymmetry,we discuss the couplings of the K and K* mesons with baryons.In previous studies of photoproductions,the K* coupling strength has been treated as parameters to reproduce experimental data.Here instead we propose to use the coupling strength which is derived from a microscopic description.By including a higher order loop contribution induced by the QCD anomaly,we demonstrate that the experimental data can be explained well.The use of a microscopic description enables us a better understanding of the reaction dynamics which provides further basis of hadron dynamics.

关键词： Kaon photoproduction QCD anomaly

作者: S.Ozaki H.Nagaguri A.Gisaja

作者单位: Research Center for Nuclear Physics (RCNP),Ibaraki,Osaka 567-0047,Japan

会议类型: 国际会议

会议名称: 3rd China-Japan-Korea Hadron and Nuclear Physics 2008 Symposium(第三届中日韩强子物理与核物理研讨会)

会议地点: 兰州

会议语种:英文

页码: 133-136

在线出版日期: 2008-06-23（万方平台首次上网日期，不代表论文的发表时间）