The Mass and Current-Meson Coupling Constant of the Exotic X(3872) State from QCD Sum Rules

Yıl 2016, Cilt: 20 Sayı: 3, 448 - 455, 23.10.2016

Hayriye Sundu

https://doi.org/10.19113/sdufbed.25599

Cited By: 2

Öz

The mass and current-meson coupling constant of the exotic X(3872) state are computed within the two-point sum rule method using the diquark-antidiquark and molecule interpolating currents. In calculations the quark, gluon and mixed vacuum condensates up to ten dimensions are taken into account. Within the diquark-antidiquark picture for the mass of the X(3872) state we obtain mX = 3873 MeV, which is very close to the experimental result of the Belle Collaboration. The molecule model leads for mX to the prediction that slightly exceeds the experimental data. We compare our predictions for the mass and coupling constant with available experimental data and other theoretical results.

Anahtar Kelimeler

Exotic hadron, QCD sum rules; Mass; Current-Meson coupling constnat

Kaynakça

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