Exotic states and rare Bs-decays in the covariant quark model

被引：0
作者：
M. Dineykhan
M. A. Ivanov
G. G. Saidullaeva
机构：
[1] Al-Farabi Kazak National University,Bogoliubov Laboratory of Theoretical Physics
[2] Joint Institute for Nuclear Research,undefined
来源：
Physics of Particles and Nuclei | 2012年 / 43卷
关键词：
Form Factor; Heavy Quark; Decay Width; Quark Model; Transition Form Factor;
D O I：
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中图分类号：
学科分类号：
摘要：
The consequences of treating X(3872) meson as a tetraquark bound state are explored. The covariant quark model that effectively includes infrared confinement is employed as a dynamical framework. The strong decay widths of observed channels X → J/Ψ + 2π(3π) and X → + \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\bar D^0 $\end{document} + D0 + π0 are calculated via the intermediate off-shell states X → J/Ψ + ρ(ω) and X → D + D*. For reasonable values of the size parameter ΛX of X(3872) meson the results are found to be consistent with the available experimental data. The possible impact of X(3872) on the behavior of the total cross section of J/Ψ dissociation by light particles within the framework of the s-channel dominance description is also discussed.
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页码：749 / 782
页数：33
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