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| Paper IPM / P / 15199 |
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| Abstract: | |||||||||
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The semileptonic decays of the open charm-bottom axial-vector tetraquark Zs=[cs][―b―s] to X (4274)―l νl, l=e,μ, τ are explored by means of QCD three-point sum rule method. The
both Zs and X (4274)=[cs][―c―s] are treated as
diquark-antidiquark states. The full width of the decays Zs → X (4274)―l νl are found. Obtained predictions for Γ(Zs → X (4274)―l νl) demonstrate that, as in the case of the
conventional hadrons, the semileptonic transitions form very small part of
their full width.
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