进一步探讨H粒子的结构  

Further study of the structure of H particle

作　　者：戴连荣[1] 王昌波[1] 刘京[1] 袁琳[1] 

机构地区：[1]辽宁师范大学物理与电子技术学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2013年第1期26-30,共5页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(10975068)

摘　　要：利用手征SU(3)夸克模型和推广的手征SU(3)夸克模型,在集团组态下研究了H粒子的结构,分析了两种不同的短程相互作用机制即矢量介子交换效应和单胶子交换效应、不同的禁闭势、耦合道及标量介子混合角等因素对H粒子结合能的影响.研究表明,准确的实验信息将有助于检验理论模型,决定如何选取禁闭势和是否需要考虑标量介子混合角等问题.We investigate the structure of H particle within the framework of chiral SU（3） quark mod- el and the extended chiral SU（3） quark model. Firstly,the different mechanisms of short--range in- teractions,vector exchange or one-gluon exchange, are analyzed. Secondly, the different confinement potentials and channel-coupling effects are studied. Finally,the effects of the mixing of scalar mesons on the H particle are investigated. The results show that the further exact information from experi- ments will be helpful in deciding the different confinement potentials and the mixing of scalar mesons in our models.

关 键 词：夸克模型 标量介子混合角 禁闭势 

分 类 号：O572.2[理学—粒子物理与原子核物理]