Properties of exotic mesons in relativistic quark model
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Keywords:
relativistic quark model, exotic mesons, one photon decay, infrared confinementAbstract
In this work it is explored the consequences of treating the X (3872) meson as a tetraquark bound state by analyzing its one-photon decay, in relativistic quark model w
ith infrared confinement.
For a reasonable value of the size parameter of the X (3872) meson it was found the consistency with the available experimental data. To introduce electromagnetism is gauged a nonlocal effective Lagrangian describing the interaction of the X (3872) meson with its four constituent quarks. Also it was calculated the matrix element of the transition and proved its gauge invariance, as well as the decay width and the longitudinal/transverse composition of the in this decay is evaluated.
References
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2. B. Aubert et al. [BaBar Collaboration]. Observation of the decay and search for // Phys. Rev. Lett. 2004. V.93. P.041801.
3. D. E. Acosta et al. [CDF Collaboration]. Observation of the narrow state in collision at // Phys. Rev. Lett. 2004. V.93. P.072001.
4. F. Abe et al. Observation of the meson in collisions at // Phys. Rev. Lett.1998. V.81. P.2432-2437.
5. K. Abe et al. [Belle Collaboration]. “Evidence for and the sub-threshold decay ” // arXiv:hep-ex/0505037. hep-ex/0505038.
6. B. Aubert et al. [BABAR Collaboration]. Search for // Phys. Rev. D. 2006. V.74. P.071101.
7. G. Gokhroo et al. [Belle Collaboration]. Observation for a near-threshold enhancement in decay // Phys. Rev. Lett.2006. V.97. P.162002.
8. B. Aubert et al. [BABAR Collaboration]. Study of Resonances in Exclusive B Decays to // Phys. Rev. D.2008. V.77. P.011102.
9. E. Klempt and A. Zaitsev. Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts // Phys. Rept. 2007. P.454. P.1.
10. Hayashi K. et al. // Fort der Phys. 1967. V.15. P.625., Salam A. // Nuovo Cimento. 1962. V.25. P.224.
11. М. Динейхан, Г.В. Ефимов, М.А. Иванов. Распады скалярных мезонов в нелокальной модели кварков // ЯФ. 1982. 35, c.134.
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How to Cite
Dineykhan, M., Zhaugasheva, S., Saidullaeva, G., & Khabyl, N. (2012). Properties of exotic mesons in relativistic quark model. Recent Contributions to Physics (Rec.Contr.Phys.), 41(2), 71–77. Retrieved from https://bph.kaznu.kz/index.php/zhuzhu/article/view/696
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Theoretical Physics. Nuclear and Elementary Particle Physics. Astrophysics
