Analysis of the Y(4140) and related molecular states with QCD sum rules

Abstract

In this article, we assume that there exist scalar $D^{\ast }{\bar{D}}^{\ast }$, $D_s^{\ast }{\bar{D}}_s^{\ast }$, $B^{\ast }{\bar{B}}^{\ast }$ and $B_s^{\ast }{\bar{B}}_s^{\ast }$ molecular states, and study their masses using the QCD sum rules. The numerical results indicate that the masses are about $(250-500)\mathrm{MeV}$ above the corresponding $D^{\ast }-{\bar{D}}^{\ast }$, $D_s^{\ast }-{\bar{D}}_s^{\ast }$, $B^{\ast }-{\bar{B}}^{\ast }$ and $B_s^{\ast }-{\bar{B}}_s^{\ast }$ thresholds, the Y(4140) is unlikely a scalar $D_s^{\ast }{\bar{D}}_s^{\ast }$ molecular state. The scalar $D^{\ast }{\bar{D}}^{\ast }$, $D_s^{\ast }{\bar{D}}_s^{\ast }$, $B^{\ast }{\bar{B}}^{\ast }$ and $B_s^{\ast }{\bar{B}}_s^{\ast }$ molecular states maybe not exist, while the scalar ${D^{\prime }}^{\ast }{\overline{D^{\prime }}}^{\ast }$, ${D^{\prime }}_s^{\ast }{\overline{D^{\prime }}}_s^{\ast }$, ${B^{\prime }}^{\ast }{\overline{B^{\prime }}}^{\ast }$ and ${B^{\prime }}_s^{\ast }{\overline{B^{\prime }}}_s^{\ast }$ molecular states maybe exist.

arXiv comment19 pages, 36 figures, slight revision

References in corpus (16)

• Diquarks and Exotic Spectroscopy
• Exotica
• QCD at Low Energies
• 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
• The Physics of Hadronic Tau Decays
• QCD Sum Rules for Skeptics
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Observation of Y(3940) -> J/psi omega in B -> J/psi omega K at BABAR
• Analysis of Y(2175) as a tetraquark state with QCD sum rules
• Four-nucleon scattering: Ab initio calculations in momentum space
• Analysis of the Y(4140) with QCD sum rules
• QCD Sum Rules for Exclusive Decays of Heavy Mesons
• Analysis the $0^{++}$ nonet mesons as four-quark states with the QCD sum rules
• Another tetraquark structure in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• Mass spectrum of the vector hidden charm and bottom tetraquark states

Cited by in corpus (39)

• The hidden-charm pentaquark and tetraquark states
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Exotics: Heavy Pentaquarks and Tetraquarks
• Observation of $J/\psi \varphi$ structures consistent with exotic states from amplitude analysis of $B^{+}\to J/\psi \varphi K^{+}$ decays
• Analysis of the X(3872), Z_c(3900) and Z_c(3885) as axial-vector tetraquark states with QCD sum rules
• Possible assignments of the $X(3872)$, $Z_c(3900)$ and $Z_b(10610)$ as axial-vector molecular states
• Amplitude analysis of $B^{+}\to J/\psi \varphi K^{+}$ decays
• Evidence for a new resonance and search for the Y(4140) in $\gamma \gamma \to \varphi J/\psi$
• Reanalysis of the $Y(3940)$, $Y(4140)$, $Z_c(4020)$, $Z_c(4025)$ and $Z_b(10650)$ as molecular states with QCD sum rules
• Analysis of the $Z_c(4020)$, $Z_c(4025)$, $Y(4360)$ and $Y(4660)$ as vector tetraquark states with QCD sum rules
• The $Z_b(10610)$ and $Z_b(10650)$ as axial-vector tetraquark states in the QCD sum rules
• Search for the X(4140) state in B+ to J/psi phi K+ decays
• The $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$ in the relativized quark model
• Understanding the internal structures of the $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$
• Canonical description of the new LHCb resonances
• Tetraquark state candidates: $Y(4140)$, $Y(4274)$ and $X(4350)$
• QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra
• Mass spectra for $qc\bar{q}\bar{c}$, $sc\bar{s}\bar{c}$, $qb\bar{q}\bar{b}$, $sb\bar{s}\bar{b}$ tetraquark states with $J^{PC}=0^{++}$ and $2^{++}$
• Novel charmonium-like structures in the $J/\psi \varphi$ and $J/\psi \omega$ invariant mass spectra
• Analysis of the mass and width of the $X(4140)$ as axialvector tetraquark state
• Non-linear Regge trajectories with AdS/QCD
• Exploring the resonances $X(4140)$ and $X(4274)$ through their decay channels
• Possible pentaquark candidates: new excited ${\Omega }_c$ states
• Analysis of the X(4350) as a scalar $\bar{c}c$ and $D_s^{\ast }{\bar{D}}_s^{\ast }$ mixing state with QCD sum rules
• XYZ-SU3 Breakings from Laplace Sum Rules at Higher Orders
• Mass spectrum of the axial-vector hidden charmed and hidden bottom tetraquark states
• Where are ${\chi }_{cJ}(3P)$?
• Mass and Decay Constant of the $D_2^{\ast }(2460)$ Tensor Meson
• Reanalysis of the $X(4140)$ as axialvector tetraquark state with QCD sum rules
• Analysis of the scalar doubly heavy tetraquark states with QCD sum rules
• Analysis of the Y(4274) with QCD sum rules
• Analysis of the scalar doubly charmed hexaquark state with QCD sum rules
• $XYZ$ particles at Belle
• Thermal properties of $D_2^{\ast }(2460)$ and $D_{s2}^{\ast }(2573)$ tensor mesons using QCD sum rules
• Analysis of the tetraquark and hexaquark molecular states with the QCD sum rules
• Light scalar $K_0^{\ast }(700)$ meson in vacuum and a hot medium
• Exploratory study of X(4140) in QCD sum rules
• Analysis of the vector meson transitions among the heavy quarkonium states
• Production of $X_{cs\bar{c}\bar{s}}$ in heavy ion collisions