四夸克态ssss高斯求和规则研究

Gaussian sum rule studies of ssss tetraquark state

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.