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arXiv · 1004.1291

Quark model description of the tetraquark state X(3872) in a relativistic constituent quark model with infrared confinement

Stanislav Dubnicka·Anna Z. Dubnickova·Mikhail A. Ivanov·Juergen G. Korner
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Abstract

We explore the consequences of treating the X(3872) meson as a tetraquark bound state. As dynamical framework we employ a relativistic constituent quark model which includes infrared confinement in an effective way. We calculate the decay widths of the observed channels X-> Jpsi+2π(3π) and X-> \bar D0+D0+\pi0 via the intermediate off--shell states X-> Jpsi+ρ(ω) and X-> \bar D + D*. For reasonable values of the size parameter of the X(3872) we find consistency with the available experimental data. We also discuss the possible impact of the X(3872) in a s-channel dominance description of the Jpsi-dissociation cross section.

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Stanislav Dubnicka, Anna Z. Dubnickova, Mikhail A. Ivanov, Juergen G. Korner. 2010-05-18. Quark model description of the tetraquark state X(3872) in a relativistic constituent quark model with infrared confinement. https://doi.org/10.1103/physrevd.81.114007

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