Nuclear Physics A ( IF 1.4 ) Pub Date : 2020-04-20 , DOI: 10.1016/j.nuclphysa.2020.121856 Tanvi Bhavsar , Manan Shah , Smruti Patel , P.C. Vinodkumar
In the diquark-antidiquark composition, we study the masses of hidden charm tetraquark systems (, and ) using a linear confinement potential. In this study, we have factorized the four body system into three subsequent two body systems. To remove degeneracy in the S and P wave masses of mesons and tetraquark states, the spin-spin, spin orbit and tensor components of the confined one gluon exchange interactions are employed. In this attempt, we have been able to assign the as pure tetraquark state. and as pure tetraquark states. According to our analysis is found to be an admixture of two tetraquark states having mass 4259 MeV. Additionally, we have been able to predict the radiative decay width , leptonic decay width and hadronic decays of tetraquark states. The status of X(3872) and are also identified as compact tetraquark states. Additionally, we have been able to predict the radiative decay width , leptonic decay width and hadronic decays of tetraquark states.
中文翻译:
在隐藏的魅力部门的上述四夸克态的群众d - d ⁎门槛
在双夸克-反双夸克的构成中,我们研究了隐藏的魅力四夸克系统的质量(, 和 )使用线性限制电位。在这项研究中,我们将四个身体系统分解为三个随后的两个身体系统。为了消除介子和四夸克态在S波和P波质量中的简并性,采用了有限的一种胶子交换相互作用的自旋自旋,自旋轨道和张量分量。在此尝试中,我们已经能够分配 如纯 四夸克状态。 和 如纯 四夸克状态。根据我们的分析 被发现是两种的混合物 具有质量4259 MeV的四夸克态。此外,我们已经能够预测辐射衰减宽度,轻子衰变宽度 和强子衰变 四夸克状态。X(3872)和的状态也被确定为紧密四夸克态。此外,我们已经能够预测辐射衰减宽度,轻子衰变宽度 和强子衰变 四夸克状态。