X(3872) as a hadronic molecule and its decays to charmonium states and pions

Abstract

The X(3872) with quantum numbers J(PC) = 1(++) is considered as a composite hadronic state comprised of the dominant molecular D(0) D*(0) component and other hadronic pairs - D(+-) D*(-+), Jpsi omega and Jpsi rho. Applying the compositeness condition we constrain the couplings of the X(3872) to its constituents. We calculate two- and three-body hadronic decays of the X(3872) to charmonium states chi(cJ) and pions using a phenomenological Lagrangian approach. Next using the estimated X-Jpsi-omega and and X-Jpsi-rho couplings we calculate the widths of X(3872) to Jpsi + h, where h = pi(+) pi(-), pi(+) pi(-) pi(0), pi(0) gamma and gamma. The obtained results for the decay pattern of the X(3872) in a molecular interpretation could be useful for running and planned experiments.

12 pages, 3 figures, accepted for publication in Phys. Rev. D

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• Strong and radiative decays of X(3872) as a hadronic molecule with a negative parity
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• Decay of vector-vector resonances into $\gamma$ and a pseudoscalar meson
• Generalized parton distributions of $\Delta$ resonance in a diquark spectator approach
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• Hidden-Charm Tetraquarks in a Mixture Model: Coupled-Channel Analysis with $c\bar{c}$ and Hadronic Molecular Components
• Mixing of X and Y states from QCD Sum Rules analysis
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• Exotic hadrons associated with $b$-quark
• Radiative transitions of charmonium states in the covariant confined quark model
• Production of the $X(3872)$ state via the $B^0\to K^{\ast 0}X(3872)$ decay
• Strong decays of the $\Xi (1620)$ as a $\Lambda \bar{K}$ and $\Sigma \bar{K}$ molecule