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Strong B_(QQ')^*B_(QQ')V vertices and the radiative decays of B_(QQ)^* to B_(QQ)γ in the light-cone sum rules

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arxiv 2101.10264 v1 pith:337DMRW2 submitted 2021-01-25 hep-ph

Strong B_(QQ')^*B_(QQ')V vertices and the radiative decays of B_(QQ)^* to B_(QQ)γ in the light-cone sum rules

classification hep-ph
keywords decaysgammalight-coneradiativerulesstrongwidthsapproaches
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The strong coupling constants of spin-3/2 to spin-1/2 doubly heavy baryon transitions with light vector mesons are estimated within the light-cone QCD sum rules method. Moreover, using the vector-meson dominance ans\"atz, the widths of radiative decays $B_{QQ}^* \to B_{QQ} \gamma$ are calculated. The results for the said decay widths are compared to the predictions of other approaches.

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