Determination of the strong vertices of doubly heavy baryons with pseudoscalar mesons in QCD

Abstract

The strong coupling constant of doubly heavy baryons with light pseudoscalar mesons $\pi$ and $K$ are computed within the light cone sum rules. We take into account two-particle and three-particle distribution amplitudes of the said pseudoscalar mesons. We compare our result with the one existing in the literature.

arXiv comment8 pages, 2 figures, 1 table

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• QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes
• 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
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• Strong vertices of doubly heavy spin-3/2--spin-1/2 baryons with light mesons in light-cone QCD sum rules
• Strong Coupling Constants of the Doubly Heavy Spin-1/2 Baryons with Light Pseudoscalar Mesons
• Strong Vertices of Doubly Heavy Spin-3/2 Baryons with Light Pseudoscalar Mesons
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$