The Mass and Current-Meson Coupling Constant of the Exotic X(3872) State from QCD Sum Rules
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
Kaynakça
- [1] Choi, S.-K., et al. (Belle Collaboration) 2003. Observation of a Narrow Charmoniumlike State in Exclusive B^±→K^± π^+ π^- J/ψ Decays. Physical Review Letters, 91(2003), 262001.
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Ayrıntılar
Birincil Dil
Türkçe
Konular
-
Bölüm
-
Yazarlar
Hayriye Sundu
Bu kişi benim
Yayımlanma Tarihi
23 Ekim 2016
Gönderilme Tarihi
5 Eylül 2016
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 2016 Cilt: 20 Sayı: 3
Cited By
Mass Spectra and Decay Constants of Heavy-Light Mesons: A Case Study of QCD Sum Rules and Quark Model
Advances in High Energy Physics
https://doi.org/10.1155/2018/8095653X(3872) and its heavy quark spin symmetry partners in QCD sum rules
The European Physical Journal C
https://doi.org/10.1140/epjc/s10052-018-6382-z