https://doi.org/10.1140/epjc/s10052-019-6737-0
Regular Article - Theoretical Physics
New charged resonance 
: the spectroscopic parameters and width
1
Department of Physics, Kocaeli University, 41380, Izmit, Turkey
2
Institute for Physical Problems, Baku State University, 1148, Baku, Azerbaijan
3
Department of Physics, Doǧuş University, Acibadem-Kadiköy, 34722, Istanbul, Turkey
4
School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, Iran
* e-mail: azizi.hep.ph@gmail.com
Received:
5
February
2019
Accepted:
28
February
2019
Published online:
9
March
2019
The mass, coupling and width of the newly observed charged resonance 
are calculated by treating it as a scalar four-quark system with a diquark–antidiquark structure. The mass and coupling of the state are calculated using the QCD two-point sum rules. In these calculations we take into account contributions of the quark, gluon and mixed condensates up to dimension ten. The spectroscopic parameters of obtained by this way are employed to study its S-wave decays to 
, 
, 
, and 
final states. To this end, we evaluate the strong coupling constants corresponding to the vertices 
, 
, 
, and 
respectively. The couplings 
, 
, and 
are computed by means of the QCD three-point sum rule method, whereas 
is obtained from the QCD light-cone sum rule approach and soft-meson approximation. Our results for the mass 
and total width 
of the resonance are in excellent agreement with the existing LHCb data.
© The Author(s), 2019
