Strong Coupling Constants of the Doubly Heavy Spin-1/2 Baryons with Light Pseudoscalar Mesons

Abstract

The strong coupling constants of hadronic multiplets are fundamental parameters which carry information of the strong interactions among participating particles. These parameters can help us construct the hadron-hadron strong potential and gain information about the structure of the involved hadrons. Motivated by the recent observation of the doubly charmed ${\Xi }_{cc}$ state by LHCb, we determine the strong coupling constants among the doubly heavy spin-1/2 baryons, ${\Xi }_{Q{Q}^{\prime }}^{(\prime )}$, ${\Omega }_{Q{Q}^{\prime }}^{(\prime )}$ and light pseudoscalar mesons, $\pi$, $K$, $\eta$ and ${\eta }^{\prime }$ within the framework of the light cone QCD sum rules. The obtained results may help experimental groups in analysis of the related data at hadron colliders.

arXiv comment24 Pages, 4 Figures and 5 Tables, To be published in Chinese Physics C

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Cited by in corpus (3)

• Strong $B_{Q{Q}^{\prime }}^{\ast }{B}_{Q{Q}^{\prime }}V$ vertices and the radiative decays of $B_{QQ}^{\ast }\to B_{QQ}\gamma$ in the light-cone sum rules
• Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons
• Strong vertices of doubly heavy spin-3/2--spin-1/2 baryons with light mesons in light-cone QCD sum rules