Radiative decay of hadronic molecule state for quarks

Abstract

Using the general form of the generalized Bethe-Salpeter wave functions for four-quark states describing the meson-meson molecular structure given in our previous work, we obtain the general formulas for the decay widths of molecular states composed of two vector mesons with arbitrary spin and parity into two photons. Then this general formalism is applied to investigate the radiative two-photon decay of the obeserved \emph{X}(3915) state, where this exotic state \emph{X}(3915) is considered as a molecular state consisting of two heavy vector mesons $D^{\ast 0}{\bar{D}}^{\ast 0}$. The numerical result of decay mode $\text{X}(3915)\to \gamma \gamma$ is consistent with the experimental values.

References in corpus (21)

• Heavy Quark Symmetry
• Multiquark Resonances
• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• Isospin breaking of the narrow charmonium state of Belle at 3872 MeV as a deuson
• Pion mass and decay constant
• Short Range Structure in the X(3872)
• Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• Dynamics and Decay of Heavy-Light Hadrons
• Masses of heavy tetraquarks in the relativistic quark model
• Observation of Y(3940) -> J/psi omega in B -> J/psi omega K at BABAR
• Hadronic molecule structure of the Y(3940) and Y(4140)
• Survey of heavy-meson observables
• Ground-state Spectrum of Light-quark Mesons
• Observation of a charmonium-like enhancement in the gamma gamma --> omega J/psi process
• Y(4143) is probably a molecular partner of Y(3930)
• Study of X(3915) --> J/ψω in two-photon collisions
• Indications of a Four-Quark Structure for the X(3872) and X(3876) Particles from Recent Belle and BABAR Data
• B- to light-meson transition form factors
• Mass of Y(3940) in Bethe-Salpeter equation for quarks
• Exploring the $D^{\ast }\rho$ system within QCD sum rules

Cited by in corpus (3)

• Pentaquark and Tetraquark states
• Development of Bethe-Salpeter theory for dealing with unstable system
• Calculation of mass and width of unstable molecular state using the developed Bethe-Salpeter theory