Application of the QCD light cone sum rule to tetraquarks: The strong vertices XbXbρ and XcXcρ

被引：30

作者：

Agaev, S. S. ^{[1
,2
]}

Azizi, K. ^{[3
]}

Sundu, H. ^{[1
]}

机构：

[1] Kocaeli Univ, Dept Phys, TR-41380 Izmir, Turkey

[2] Baku State Univ, Inst Phys Problems, AZ-1148 Baku, Azerbaijan

[3] Dogus Univ, Dept Phys, TR-34722 Istanbul, Turkey

来源：

PHYSICAL REVIEW D | 2016年 / 93卷 / 11期

关键词：

TWIST DISTRIBUTION AMPLITUDES; STRONG-COUPLING CONSTANTS; ASTERISK-B-PI; VECTOR-MESONS; DECAY; BARYONS;

D O I：

10.1103/PhysRevD.93.114036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The full version of the QCD light-cone sum rule method is applied to tetraquarks containing a single heavy b or c quark. To this end, investigations of the strong vertices XbXb rho and XcXc rho are performed, where X-b = [su][(b) over bar(d) over bar] and X-c = [su][(c) over bar(d) over bar] are the exotic states built of four quarks of different flavors. The strong coupling constants G(XbXb rho) and G(XcXc rho) corresponding to these vertices are found using the rho-meson leading- and higher-twist distribution amplitudes. In the calculations, X-b and X-c are treated as scalar bound states of a diquark and antidiquark.

引用

页数：11

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