隐色道效应与Σ~* Δ双重子结构  

The hidden color effect and the structure of Σ~* Δ dibaryon

作　　者：戴连荣[1] 章天歌 陈鑫 扈岩 DAI Lianrong;ZHANG Tiange;CHEN Xin;HU Yan(School of Physics and Electronic Technology,Liaoning Normal University,Dalian 116029,China)

机构地区：[1]辽宁师范大学物理与电子技术学院

出　　处：《辽宁师范大学学报（自然科学版）》2019年第4期444-449,共6页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目（11575076）

摘　　要：在手征SU(3)夸克模型下应用共振群方法,研究了奇异数为-1的Σ^*Δ(S=3,T=1/2)双重子系统的结构,主要研究了考虑隐色道后系统结合能的变化情况.研究发现无论是单道还是耦合道,系统均可以形成束缚态;加入隐色道之后,系统的结合能增加了20MeV左右,更有利于束缚态的形成.In this paper,the structure ofΣ^*Δ(S=3,T=1/2)system with strangeness-1 is studied by using the Resonance Group Method(RGM)in the chiral SU(3)quark model.The different effects of hidden-color channel and partial wave coupling on the system are studied.It is found that whether single-channel or coupled-channel calculations,theΣ*Δ(S=3,T=1/2)system would form bound states.The binding energy of the system can increase by about 20 MeV by including the hidden-color channel,which is more conducive to the formation of bound states.

关 键 词：手征SU(3)夸克模型 双重子 隐色道 结合能 

分 类 号：O572.2[理学—粒子物理与原子核物理]