Exploring X(5568) as a meson molecule


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AGAEV S. S. , Azizi K., Sundu H.

EUROPEAN PHYSICAL JOURNAL PLUS, cilt.131, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 131 Konu: 10
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1140/epjp/i2016-16351-8
  • Dergi Adı: EUROPEAN PHYSICAL JOURNAL PLUS

Özet

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. -> B-s(0)pi(+), are explored using the B (K) over bar 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.