S. S. Agaev, K. Azizi, H. Sundu
Published 2016-03-08Version 1
The parameters, i.e. the mass and decay constant of the exotic $X_b(5568)$ state newly observed by D0 Collaboration, as well as the decay width of the process $X_b \to B_s^{0}\pi^{+}$ are explored using $B\overline{K}$ molecule assumption on its structure. Computational methods employed here encompass QCD two-point and light-cone sum rules, latter being considered in the soft-meson approximation. The obtained results are compared with the data of the D0 Collaboration, as well as with the predictions of the diquark-antidiquark model. This comparison strengthens the diquark-antidiquark picture for the $X_b(5568)$ state rather than a meson molecule structure.
Comments: 6 Pages and 2 Tables. arXiv admin note: text overlap with arXiv:1603.01471
Mass and decay constant of the newly observed exotic $X(5568)$ state
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