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

2010/04/30 by S. Dubnička, Stanislav Dubnicka, Anna Z. Dubnickova +5 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #hep-ex #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.81.114007

published as Phys.Rev.D81:114007,2010 · 9 pages, 5 figures; discussion and references added, accepted in Phys. Rev. D

arxiv created 2010/05/18 · openalex publication_date 2010/06/04 · arxiv updated 2014/11/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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\ensuremath→J/\ensuremathψ+2\ensuremathπ(3\ensuremathπ) and X\ensuremath→D⁰+D⁰+\ensuremathπ⁰ via the intermediate off-shell states X\ensuremath→J/\ensuremathψ+\ensuremathρ(\ensuremathω) and X\ensuremath→D+D^*. For reasonable values of the size parameter \ensuremathΛ_X 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 J/\ensuremathψ dissociation cross section.

Citations

• Review of Particle Physics
• The D threshold resonance
• Estimate for theX(3872)→γJ/ψdecay width
• Observation and Properties of theX(3872)Decaying toJ/ψπ+π−inpp¯Collisions ats=1.96 TeV
• X(3872) DIAGNOSTICS WITH DECAYS TO D Dγ
• Four-quark mesons in nonleptonicBdecays: Could they resolve some old puzzles?
• Indications of a Four-Quark Structure for theX(3872)andX(3876)Particles from Recent Belle andBABARData
• Relativistic constituent quark model with infrared confinement
• Semileptonic decays of the lightJP=1/2+ground state baryon octet
• The FORM project
• Relativistic description of heavy tetraquarks
• Quarkonia and their transitions
• The new heavy mesons: A status report
• Molecular states of heavy quark mesons
• Diquark-antidiquark states with hidden or open charm and the nature ofX(3872)
• Strong and radiative decays of heavy flavored baryons
• Operator product expansion in the production and decay of theX(3872)
• Weakly-bound hadronic molecule near a 3-body threshold
• More loosely bound hadron molecules at CDF?
• The semileptonic form factors of B and D mesons in the Quark Confinement Model
• Lagrangian theory of composite particles
• Is X(3872) really a molecular state?
• Compositeness Criteria of Particles in Quantum Field Theory and S‐Matrix Theory
• Magnetic moments of heavy baryons in the relativistic three-quark model
• NEW HADRON STATES
• The Exotic XYZ Charmonium-Like Mesons
• Exclusive nonleptonic decays of bottom and charm baryons in a relativistic three-quark model: Evaluation of nonfactorizing diagrams
• Precision Measurement of theX(3872)Mass inJ/ψπ+π−Decays
• One-photon transitions between heavy baryons in a relativistic three-quark model
• Heavy baryon transitions in a relativistic three-quark model
• Pion interactions in theX(3872)
• Pion and sigma meson properties in a relativistic quark model
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• THE X(3872) MESON AND "EXOTIC" SPECTROSCOPY AT CDF II — OR NOT? —
• Charmonium

Cited by

• Possible Bound States in the D^∗ D^∗/B^∗ B^∗ and D^∗ D^∗/ B^∗ B^∗ Systems within the Bethe-Salpeter Formalism
• One-photon decay of the tetraquark stateX(3872)→γ+J/ψin a relativistic constituent quark model with infrared confinement

Related

• Relativistic constituent quark model with infrared confinement
• Multiquark states in the covariant quark confinement model
• Tetraquark states in the quark model
• Constituent-quark-model based coupled-channels calculation of the bb c c and bc b c tetraquark systems
• Mass Spectra of Full-Heavy and Double-Heavy Tetraquark States in the Conventional Quark Model