重子五夸克态波函数及能谱的研究  

Research on the wavefunctions and energy spectrums of baryon pentaquark

作　　者：杨阔[1,2] 覃觅觅[2] 宋永[1] 

机构地区：[1]阿坝师范高等专科学校电子信息工程系,四川汶川623001 [2]电子科技大学物理电子学院,四川成都610064

出　　处：《云南大学学报（自然科学版）》2013年第5期632-637,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：四川省科技厅重点科技项目(2011JYZ031);四川省教育厅科研项目(13ZB0034);阿坝师专科研项目(ASA11-28)

摘　　要：基于手征SU(3)夸克模型,研究了一类包含1个反夸克的五夸克系统(q4-q).采用Jacobi坐标,利用五体理论方法,推导建立了四夸克子系统的波函数,并和反夸克耦合后得到了五夸克系统波函数,在雅可比坐标系下分别计算了夸克-夸克及夸克-反夸克的各个相互作用势.通过T-M变换得到同一Jacobi坐标下五夸克态系统Diamond结构(q4-q)20个态的能量.The five- quark system including an anti -quark has been studied by the chiral SU（3 ） quark model . Four - quark subsystem wave function has been derived and established , and has been coupled an anti- quark. Pentaquark＇ s wave functions have been set up. Then quark - quark and quark - antiquark potential have been calculated in all interactions in the Jacobian coordinate system , and through the transformation of T- M , twenty ground - states＇ energies of the diamond structure of pentaquark have been calculated out in the same Ja- cobian coordinate.

关 键 词：SU（3）夸克模型 五夸克态 反夸克 波函数 

分 类 号：O571.211[理学—粒子物理与原子核物理]