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Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons
The European Physical Journal C ( IF 4.4 ) Pub Date : 2020-12-24 , DOI: 10.1140/epjc/s10052-020-08770-6
K. Azizi , A. R. Olamaei , S. Rostami

We calculate the strong coupling constants among the doubly heavy spin-\( \frac{3}{2} \) baryons \(\Xi ^*_{QQ}\) and \(\Omega ^*_{QQ}\), with Q and \( Q' \) being c or b quark, with light vector meson by means of the light-cone QCD sum rules. The matrix elements defining these vertices are described by four coupling constants \( g_1\), \( g_2\), \( g_3\), and \( g_4 \). The unwanted pollution coming from the doubly heavy spin-\( \frac{1}{2} \) baryons are removed by a special ordering of Dirac matrices and selection of appropriate Lorentz structures. The strong coupling constants are basic parameters that carry information on the nature of the strong interaction among hadronic multiplets. Investigation of these parameters may help physicists in the construction of the strong potentials among the doubly heavy baryons and light vector mesons. The values obtained for the strong coupling constants may also help experimental groups in analyses of the data produced at various hadron colliders.



中文翻译:

双重旋3/2重子与轻向量介子的强相互作用

我们计算双重自旋- (\ frac {3} {2} \)重子\(\ Xi ^ * _ {QQ} \)\(\ Omega ^ * _ {QQ} \)之间的强耦合常数,其中Q\(Q'\)cb夸克,通过光锥QCD和规则使用光矢量介子。定义这些顶点的矩阵元素由四个耦合常数\(g_1 \)\(g_2 \)\(g_3 \)\(g_4 \)来描述。来自双重重旋的不必要的污染- \(\ frac {1} {2} \)通过对Dirac矩阵进行特殊排序并选择适当的Lorentz结构来删除重子。强耦合常数是携带有关强子多重峰之间强相互作用性质的信息的基本参数。对这些参数的研究可能有助于物理学家在双重子和轻子介子之间建立强大的电势。获得的强耦合常数值也可能有助于实验组分析各种强子对撞机产生的数据。

更新日期:2020-12-25
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