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Paper   IPM / Physic / 15199
School of Physics
  Title:   Probing an axial-vector tetraquark Zs via its semileptonic decay ZsX (4274)l ν
1.  H. Sundu
2.  B. Barsbay
3.  S.S. Agaev
4.  K. Azizi
  Status:   Published
  Journal: Eur. Phys. J. A
  Vol.:  54
  Year:  2018
  Pages:   124
  Supported by:  IPM
The semileptonic decays of the open charm-bottom axial-vector tetraquark Zs=[cs][bs] 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][cs] are treated as diquark-antidiquark states. The full width of the decays ZsX (4274)l νl are found. Obtained predictions for Γ(ZsX (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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