Analysis of the hidden-charm-hidden-strange tetraquark mass spectrum via the QCD sum rules

Abstract

In the present work, we construct the diquark-antidiquark type four-quark currents to investigate the mass spectrum of the ground state hidden-charm-hidden-strange tetraquark states with the quantum numbers $J^{PC}=0^{++}$, $1^{+-}$, $1^{++}$ and $2^{++}$ via the traditional QCD sum rules in a comprehensive way. We update old calculations, perform new calculations and analysis in a rigorous way, and take account of the net light-flavor $SU(3)$ breaking effects in a consistent way. And we make more reasonable identifications for the $X(3960)$, $X(4140)$, $X(4274)$, $X(4500)$, $X(4685)$ and $X(4700)$ and supersede some old identifications. Furthermore, we consider our previous theoretical predictions, and make reasonable/suitable identifications of the new LHCb states $h_c(4000)$ and ${\chi }_{c1}(4010)$.

21 pages, 1 figure

References in corpus (15)

• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• Analysis of the doubly-charmed tetraquark molecular states with the QCD sum rules
• Analysis of the $Z(4430)$ as the first radial excitation of the $Z_c(3900)$
• Analysis of the Y(4140) with QCD sum rules
• Interpretation of Axial Resonances in J/psi-phi at LHCb
• Analysis of the mass and width of the $Y(4274)$ as axialvector molecule-like state
• Analysis of the mass and width of the $X(4140)$ as axialvector tetraquark state
• How to understand the underlying structures of $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$
• Analysis of the hidden-bottom tetraquark mass spectrum with the QCD sum rules
• Analysis of the vector tetraquark states with P-waves between the diquarks and antidiquarks via the QCD sum rules
• Reanalysis of the $X(3915)$, $X(4500)$ and $X(4700)$ with QCD sum rules
• Where are ${\chi }_{cJ}(3P)$?
• Reanalysis of the $X(4140)$ as axialvector tetraquark state with QCD sum rules
• Analysis of the pseudoscalar hidden-charm tetraquark states with the QCD sum rules
• Analysis of the vector hidden-charm-hidden-strange tetraquark states with implicit P-waves

Cited by in corpus (8)

• The ground states of hidden-charm tetraquarks and their radial excitations
• Mass spectrum of the hidden-charm hybrid states via the QCD sum rules
• Analysis of the hidden-charm pentaquark candidates in the $J/\psi p$ mass spectrum with QCD sum rules
• Analysis of the hadronic molecules $DK$, $D^{\ast }K$, $D{K}^{\ast }$ and their bottom analogs with QCD sum rules
• Two-body strong decays of the hidden-charm tetraquark molecular states via the QCD sum rules
• Radiative Decays of Vector Mesons with Light-Cone Sum Rules
• Systematic analysis of the D-wave charmonium states with the QCD sum rules
• Analysis of the $X(4475/4710)$, $X(4500/4700)$, $Z_c(4600)$, $Z_{\bar{c}\bar{s}}(4600)$ and related tetraquark states with the QCD sum rules