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

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.

9 pages, 5 figures; discussion and references added, accepted in Phys. Rev. D

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• The Exotic XYZ Charmonium-like Mesons
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• Charmonium Options for the X(3872)
• Low-energy Universality and the New Charmonium Resonance at 3870 MeV
• Interference and binding effects in decays of possible molecular component of X(3872)
• Exclusive semileptonic and nonleptonic decays of the Bc meson
• Molecular States of Heavy Quark Mesons
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• Is X(3872) a molecule?
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• Observation of a Near-threshold $D^0{\bar{D}}^0{\pi }^0$ Enhancement in $B\to D^0{\bar{D}}^0{\pi }^{0}K$ Decay
• Heavy Baryon Transitions in a Relativistic Three-Quark Model
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• Study of Resonances in Exclusive B Decays to Dbar(*)D(*)K
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• New Hadron States
• Search for B+ --> X(3872) K+, X(3872) --> J/psi gamma
• Reinterpreting several narrow `resonances' as threshold cusps
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• Strong and Radiative Decays of Heavy Flavored Baryons
• X(3872) as a molecular DD* state in a potential model
• The semileptonic decays of the B_c meson
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• Relativistic constituent quark model with infrared confinement
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• Narrow-width approximation accuracy
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• Electromagnetic form factors of nucleons in a relativistic three-quark model
• Semileptonic decays of Bc mesons into charmonium states in a relativistic quark model
• Heavy quark spin selection rule and the properties of the X(3872)
• Decays of the X(3872) into J/psi and Light Hadrons
• Semileptonic decays of double heavy baryons in a relativistic constituent three-quark model
• Indications of a Four-Quark Structure for the X(3872) and X(3876) Particles from Recent Belle and BABAR Data
• Charmonium Hybrid Production in Exclusive B Meson Decays
• Semileptonic decays of double heavy baryons
• Observation of the Decay B=> J/psi eta K and Search for X(3872)=> J/psi eta
• Charmonium spectroscopy above thresholds
• Light baryon magnetic moments and N -> Delta gamma transition in a Lorentz covariant chiral quark approach
• Factorization in the Production and Decay of the X(3872)
• The exclusive rare decays B -> K l(bar) l and B_c -> D(D*) l(bar) l in a relativistic quark model
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• Adler function and hadronic contribution to the muon g-2 in a nonlocal chiral quark model
• An Alternative Interpretation of X(3872)
• One-Photon Transitions between Heavy Baryons in a Relativistic Three-Quark Model
• The FORM project
• X(3872) diagnostics with decays to D {\bar D} γ
• Weakly-bound Hadronic Molecule near a 3-body Threshold
• $X(3872)\to D\bar{D}\gamma$ decays and the structure of X(3872)
• A new tetra-quark interpretation of X(3872)
• Four-Quark Mesons in Non-leptonic B Decays--Could They Resolve Some Old Puzzles?
• The gamma(*) pi(0) -> gamma form factor
• More loosely bound hadron molecules at CDF?
• Operator Product Expansion in the Production and Decay of the X(3872)
• Leptonic and Semileptonic Decays of Pseudoscalar Mesons
• J/ψdissociation cross sections in a relativistic quark model
• omega-rho^0 mixing as a possible origin of the hypothetical isospin non-conservation in the X(3872) --> pi^+ pi^- J/psi decay
• Relativistic description of heavy tetraquarks
• One-Pion Charm Baryon Transitions in a Relativistic Three-Quark Model
• Lambda_b and Lambda_c baryon decays at finite values of heavy quark masses
• J/psi dissociation by light mesons in an extended Nambu Jona-Lasinio model
• The X(3872) Meson and "Exotic" Spectroscopy at CDF II
• The semileptonic form factors of B and D mesons in the Quark Confinement Model

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