Exploring X(5568) as a meson molecule
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KünyeAgaev, S. S., Azizi, K., & Sundu, H. (2016). Exploring X(5568) as a meson molecule. European Physical Journal Plus, 131(10), 1-8. http://dx.doi.org/10.1140/epjp/i2016-16351-8
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→B0sπ+X→Bs0π+ , are explored using the BK¯¯¯¯¯BK¯ molecule assumption on its structure. Employed computational methods include QCD two-point and light-cone sum rules, the 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.