四夸克态ssss高斯求和规则研究  

Gaussian sum rule studies of ssss tetraquark state

作　　者：龚帅 闻水国 GONG Shuai;WEN Shui-guo(School of Physics and Electronic Science,Guizhou Education University,Guiyang,Guizhou,550018)

机构地区：[1]贵州师范学院物理与电子科学学院,贵州贵阳550018

出　　处：《贵州师范学院学报》2020年第9期13-17,共5页Journal of Guizhou Education University

基　　金：贵州省自然科学基金项目“重-轻夸克求和规则研究”(黔科合J字[2013]2252号);贵州省本科高校一流课程建设项目“理论物理”(黔教高发[2017]158号)。

摘　　要：采用高斯求和规则方法计算了四夸克态ss ss的质量。首先,通过Laplace变换得到四夸克态ss ss的高斯求和规则公式,进而导出该四夸克态的质量计算公式。采用量子色动力学标准输入参数,计算得到ss ss的质量为2.15±0.15 GeV,所得结果与实验值以及Borel求和规则结果相符。This paper uses the Gaussian sum rule method to calculate the mass of the tetraquark state ss ss.Firstly,the Gaussian sum rule formula of tetraquark state ss ss is obtained by Laplace transformation,and then the mass calculation formula of the tetraquark state is derived.Using the standard input parameters of quantum chromodynamics,the calculated mass is 2.15±0.15 GeV,and the result is in accordance with the experimental value and the result of the Borel sum rule.

关 键 词：四夸克态 LAPLACE变换 高斯求和规则 Borel求和规则 

分 类 号：O572.339[理学—粒子物理与原子核物理]