Eur. Phys. J. A (2018) 54: 124
https://doi.org/10.1140/epja/i2018-12552-0

Regular Article - Theoretical Physics

Probing an axial-vector tetraquark Z_s via its semileptonic decay Z_s X(4274)

¹ Department of Physics, Kocaeli University, 41380, Izmit, Turkey
² Institute for Physical Problems, Baku State University, Az-1148, Baku, Azerbaijan
³ Department of Physics, Doguş University, Acibadem-Kadiköy, 34722, Istanbul, Turkey
⁴ School of Physics, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran, Iran

^* e-mail: kazizi@dogus.edu.tr

Received: 26 April 2018
Accepted: 12 June 2018
Published online: 18 July 2018

Abstract

The semileptonic decays of the open charm-bottom axial-vector tetraquark to , are explored by means of the QCD three-point sum rule method. Both and are treated as color sextet diquark-antidiquark states. The full width of the decays is found. Obtained predictions for demonstrate that, as in the case of the conventional hadrons, the semileptonic transitions form a very small part of its full width.