Dynamical study of the $X$(3915) as a molecular $D^{\ast }\overline{D^{\ast }}$ state in a quark model

Abstract

Considering the coupling of color $1\otimes 1$ and $8\otimes 8$ structures, we calculate the energy of the newly observed $X$(3915) as $S-$wave $D^{\ast }\overline{D^{\ast }}$ state in the Bhaduri, Cohler, and Nogami quark model by the Gaussian Expansion Method. Due to the color coupling, the bound state of $D^{\ast }\overline{D^{\ast }}$ with $J^{PC}=0^{++}$ is found, which is well consonant with the experimental data of the $X$(3915). The bound state of $B^{\ast }\overline{B^{\ast }}$ with $J^{PC}=0^{++}$ and $2^{++}$ are also predicted in this work.

5 pages, 2 figures

References in corpus (12)

• The Exotic XYZ Charmonium-like Mesons
• Quarkonia and their transitions
• X(3872) and Other Possible Heavy Molecular States
• Hadronic molecule structure of the Y(3940) and Y(4140)
• Observation of a charmonium-like enhancement in the gamma gamma --> omega J/psi process
• Y(4143) is probably a molecular partner of Y(3930)
• Coupled-Channel and Screening Effects in Charmonium Spectrum
• Chromomagnetism, flavour symmetry breaking and S-wave tetraquarks
• $\{Q\bar{q}\}\{{\bar{Q}}^{{(}^{\prime })}q\}$ molecular states
• The bound state problem of S-wave heavy quark meson-aitimeson systems
• Are the $X$(4160) and $X$(3915) charmonium states?
• Di-electron and two-photon widths in charmonium

Cited by in corpus (12)

• The hidden-charm pentaquark and tetraquark states
• Could $Z_b(10610)$ be a $B^{\ast }\bar{B}$ molecular state?
• $QQ\bar{q}\bar{q}$ in a chiral constituent quark model
• Coupled-Channel Effects for the Bottomonium with Realistic Wave Functions
• Possible interpretation of the $Z_b$(10610) and $Z_b$(10650) in a chiral quark model
• Mass spectra of four quark states in hidden charm sector
• Charmonium states in QCD-inspired quark potential model using Gaussian expansion method
• New molecular candidates: X(1910), X(2200), and X(2350)
• Possible $D^{(\ast )}{\bar{D}}^{(\ast )}$ and $B^{(\ast )}{\bar{B}}^{(\ast )}$ molecular states in the extended constituent quark models
• Search for $Z_{s1}^{+}$ and $Z_{s2}^{+}$ strangeonium-like structures
• Why X(3915) is so narrow as a ${\chi }_{c0}(2P)$ state
• The ground states of hidden-charm tetraquarks and their radial excitations