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Probing an axial-vector tetraquark Zs via its semileptonic decay Zs \( \rightarrow\) X(4274)\( \overline{{l}}\)\( \nu_{l}^{}\)

  • H. Sundu
  • B. Barsbay
  • S. S. Agaev
  • K. Azizi
Regular Article - Theoretical Physics

Abstract.

The semileptonic decays of the open charm-bottom axial-vector tetraquark \( Z_{s}=[cs][\overline{b}\overline{s}]\) to \( X(4274)\overline{l} \nu_l\) , \( l=e, \mu, \tau\) are explored by means of the QCD three-point sum rule method. Both \( Z_{s}\) and \( X(4274)=[cs][\overline{c}\overline{s}]\) are treated as color sextet diquark-antidiquark states. The full width of the decays \( Z_s \rightarrow X(4274) \overline{l} \nu_l\) is found. Obtained predictions for \( \Gamma(Z_s \rightarrow X(4274)\overline{l} \nu_l)\) demonstrate that, as in the case of the conventional hadrons, the semileptonic transitions form a very small part of its full width.

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Copyright information

© SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of PhysicsKocaeli UniversityIzmitTurkey
  2. 2.Institute for Physical ProblemsBaku State UniversityBakuAzerbaijan
  3. 3.Department of PhysicsDoguş UniversityIstanbulTurkey
  4. 4.School of PhysicsInstitute for Research in Fundamental Sciences (IPM)TehranIran

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