奇异数为-6的双重子结构

The structure of strangeness-6 dibaryon

在手征SU(3)夸克模型和推广的手征SU(3)夸克模型下,利用共振群方法研究了奇异数为-6的双重子ΩΩ的结构.分析了波函数宽度,夸克交换效应以及标量介子混合角对系统结合能的影响.结果表明,宽度越小越容易形成束缚态,夸克交换效应有利于形成束缚态.标量介子混合角对系统结合能的影响很大,不同的混合角下系统的结合能不同.

In the chiral SU （3） quark model and extended chiral SU （3） quark model ,we study the structure of strangeness -6 dibaryon by solving a Resonating Group Method equation .The effects from the width of wave function ,quark exchange effect ,and the mixing of scalar mesons are ana-lyzed ,respectively .We obtain some new results .Firstly ,the smaller the width of wave function ,ΩΩsystem is more easier to form the bound state .Second ,quark exchange effect is beneficial to form the bound state .However ,the mixing of scalar mesons bring big Influence to this system ,so the binding energy is quite different .