The possibility of $X(4014)$ as a $D^{\ast }{\bar{D}}^{\ast }$ molecular state

Abstract

Within the framework of the local hidden gauge approach, we have studied the near-threshold interaction of the $D^{\ast }{\bar{D}}^{\ast }$ channel with quantum numbers $I(J^{PC})=0(0^{++})$, $0(2^{++})$, $1(0^{++})$, and $1(2^{++})$, respectively. The contact interaction is taken into account alone, since it is expected to give the dominant contribution near the threshold. One pole, which is found in the case of the quantum numbers $I(J^{PC})=0(0^{++})$, could be associated to the $X(4014)$ recently observed by the Belle Collaboration. Thus, we suggest that the $X(4014)$ may be an $D^{\ast }{\bar{D}}^{\ast }$ molecular state with $I(J^{PC})=0(0^{++})$, and more precise information about $X(4014)$, such as resonance parameters and decay properties, could be useful to shed light on its structure.

6 pages, 5 figures

References in corpus (13)

• Pentaquark and Tetraquark states
• Charmonium
• Dynamically Generated Open and Hidden Charm Meson Systems
• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• Pion Interactions in the X(3872)
• The Heavy Quark Spin Symmetry Partners of the X(3872)
• The ρρinteraction in the hidden gauge formalism and the f_0(1370) and f_2(1270) resonances
• Isospin breaking effects in the X(3872) resonance
• Employing spin symmetry to disentangle different models for the XYZ states
• Study of Bc --> J/psi pi, etac pi decays with perturbative QCD approach
• A Phenomenological analysis on isospin-violating decay of $X(3872)$
• The $Z_{cs}(3985)$ as a threshold effect from the ${\bar{D}}_s^{\ast }D+{\bar{D}}_s{D}^{\ast }$ interaction
• Does the enhancement observed in $\gamma \gamma \to D\bar{D}$ contain two $P$-wave higher charmonia?

Cited by in corpus (1)

• Radiative decays of the spin-$2$ partner of $X(3872)$