Spectrum of Binding System for Heavy Quark（Q） with an Anti—sbottom（b） or for a Sbottom and Anti—sbottom Pair  

作　　者：CHANGChao－Hsi CUIJian－Ying 等 

机构地区：[1]CCAST（WorldLaboratory）,P.O.Box8730,Beijing100080,China；InstituteofTheorticalPhysics,theChineseAcademyofSciences,P.O.Box2735,Beijing100080,China [2]DepartmentofPhysics,YantaiUniversity

出　　处：《Communications in Theoretical Physics》2003年第2期197-204,共8页理论物理通讯（英文版）

基　　金：国家自然科学基金，中国科学院资助项目

摘　　要：Since long-lived light bottom squark (sbottom) and its anti-particle with a mass close to the bottomquark have not been excluded by experiments so far, so we would like to consider such a sbottom to combine with itsanti-particle to form a color singlet meson-like bound state or to combine with a common anti-quark to form a fermion-like one, or accordingly their anti-particles to form an anti-particle bound system. Namely we calculate the low-lyingspectrum of the systems specifically based on QCD inspired potential model. To be relativistic as much as possible, westart with the framework of Bethe-Salpeter (BS) equation even for non-relativistic binding systems. Finally, we obtainthe requested spectrum by constructing general forms of the BS wave functions and solving the BS equations underinstantaneous approximation.

关 键 词：重夸克 束缚态 BS方程 标准模型 

分 类 号：O572.243[理学—粒子物理与原子核物理]