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arXiv · 1603.02708

Exploring $X(5568)$ as a meson molecule

S. S. Agaev·K. Azizi·H. Sundu
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Abstract

The parameters, i.e. the mass and current coupling of the exotic $X(5568)$ state observed by the D0 Collaboration as well as the decay width of the process $X \to B_s^{0}\pi^{+}$ are explored using $B\bar{K}$ molecule assumption on its structure. Employed computational methods include 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 a diquark-antidiquark picture for the $X(5568)$ state rather than a meson molecule structure.

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S. S. Agaev, K. Azizi, H. Sundu. 2016-03-08. Exploring $X(5568)$ as a meson molecule. https://arxiv.org/abs/1603.02708

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