Hidden charm molecules in finite volume

Abstract

In the present paper we address the interaction of pairs of charmed mesons with hidden charm in a finite box. We use the interaction from a recent model based on heavy quark spin symmetry that predicts molecules of hidden charm in the infinite volume. The energy levels in the box are generated within this model, and from them some synthetic data are generated. These data are then employed to study the inverse problem of getting the energies of the bound states and phase shifts for $D\bar{D}$ or $D^{\ast }{\bar{D}}^{\ast }$. Different strategies are investigated using the lowest two levels for different values of the box size, carrying a study of the errors produced. Starting from the upper level, fits to the synthetic data are carried out to determine the scattering length and effective range plus the binding energy of the ground state. A similar strategy using the effective range formula is considered with a simultaneous fit to the two levels, one above and the other one below threshold. This method turns out to be more efficient than the other one. Finally, a method based on the fit to the data by means of a potential and a loop function conveniently regularized, turns out to be very efficient and allows to produce accurate results in the infinite volume starting from levels of the box with errors far larger than the uncertainties obtained in the final results. A regularization method based on Gaussian wave functions turns out to be rather efficient in the analysis and as a byproduct a practical and fast method to calculate the Lüscher function with high precision is presented.

26 pages, 8 figures

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Cited by in corpus (22)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• The $XYZ$ states: experimental and theoretical status and perspectives
• Pentaquark and Tetraquark states
• $D_s$ mesons with $DK$ and $D^{\ast }K$ scattering near threshold
• Evidence for X(3872) from DD* scattering on the lattice
• X(3872) and Y(4140) using diquark-antidiquark operators with lattice QCD
• Quarkonium Contribution to Meson Molecules
• Decay widths of the spin-2 partners of the X(3872)
• Contribution of constituent quark model $c\bar{s}$ states to the dynamics of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ resonances
• Effects of a $N^{\ast }$ resonance with hidden charm in the ${\pi }^{-}p\to D^{-}{\Sigma }_c^{+}$ reaction near threshold
• $Z_c(3900)$: Confronting theory and lattice simulations
• Radiative decays of the spin-$2$ partner of $X(3872)$
• Lowest lying even-parity ${\bar{B}}_s$ mesons: heavy quark spin-flavor symmetry, chiral dynamics, and constituent quark model bare masses
• Strategies for an accurate determination of the X(3872) energy from QCD lattice simulations
• Bound states on the lattice with partially twisted boundary conditions
• $P$-wave charmonium contribution to hidden-charm states from reanalysis of lattice QCD data
• Production of the $X(4014)$ as the spin-2 partner of $X(3872)$ in $e^{+}{e}^{-}$ collisions
• Searching for a hidden charm $h_1$ state in the $X(4660)\to \eta h_1$ and $X(4660)\to \eta D^{\ast }{\bar{D}}^{\ast }$ decays
• Hidden charm molecules in a Finite Volume
• The effects of charmonium on the properties of the $1^{++}$ hidden charm poles in effective field theory
• Coupled-channel meson-meson scattering in the diabatic framework