Interpretation of Axial Resonances in J/psi-phi at LHCb

Abstract

We suggest that the J/psi phi structures observed by LHCb can be fitted in two tetraquak multiplets, the S-wave ground state and the first radial excitation, with composition [cs][cbar sbar]. When compared to the previously identified [cq][cbar qbar] multiplet, the observed masses agree with what expected for a multiplet with q -->s. We propose the X(4274), fitted by LHCb with a single 1^++ resonance, to correspond rather to two, almost degenerate, unresolved lines with J^PC = 0^++, 2^++. Masses of missing particles in the 1S and 2S multiplets are predicted.

3 pages, 1 figure, to appear in PRD

References in corpus (2)

• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• Heavy quark symmetry and weak decays of the $b$-baryons in pentaquarks with a $c\bar{c}$ component

Cited by in corpus (27)

• Multiquark Resonances
• Pentaquark and Tetraquark states
• Exotics: Heavy Pentaquarks and Tetraquarks
• Diquark Correlations in Hadron Physics: Origin, Impact and Evidence
• A Theory of X and Z Multiquark Resonances
• The $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$ in the relativized quark model
• $X(4140)$, $X(4270)$, $X(4500)$ and $X(4700)$ and their $cs\bar{c}\bar{s}$ tetraquark partners
• Spectrum of the Hidden-Bottom and the Hidden-Charm/Strange Exotics in the Dynamical Diquark Model
• Hidden charm tetraquark states in a diquark model
• Analysis of the mass and width of the $X(4140)$ as axialvector tetraquark state
• Where are $3P$ and higher $P-$wave states in the charmonium family?
• Reanalysis of the $X(3915)$, $X(4500)$ and $X(4700)$ with QCD sum rules
• Threshold effects as the origin of $Z_{cs}(4000)$, $Z_{cs}(4220)$ and $X(4700)$ observed in $B^{+}\to J/\psi \varphi K^{+}$
• Investigation of $cs\bar{c}\bar{s}$ tetraquark in the chiral quark model
• Mass-Spectroscopy of hidden charm and hidden strange tetraquarks in diquark-antidiquark approach
• Tetraquark Masses by using extension of Gursey-Radicati Mass Formula
• Analysis of the hidden-charm-hidden-strange tetraquark mass spectrum via the QCD sum rules
• Substructure of Multiquark Hadrons (Snowmass 2021 White Paper)
• $X$ structures in $B^{+}\to J/\psi \varphi K^{+}$ as one-loop and double-triangle threshold cusps
• $X(3960)$, $X_0(4140)$, and other compact $cs\bar{c}\bar{s}$ states
• Possible $P$- wave $D_s{\bar{D}}_{s0}(2317)$ molecular state $Y^{{}^{\prime }}(4274)$
• Interactions of the ${\chi }_{c1}(4274)$ state with light mesons
• Quark structure of the $X(4500)$, $X(4700)$ and ${\chi }_{\mathrm{c}}(4P,5P)$ states
• The strong coupling $g_{XJ/\psi \varphi }$ of $X(4700)\to J/\psi \varphi$ in the light-cone sum rules
• Analysis of the tensor-tensor type scalar tetraquark states with QCD sum rules
• $\varphi \varphi$ and $J/\psi \varphi$ mass spectra in decay $B_s^0\to J/\psi \varphi \varphi$
• The explanation of some exotic states in the $cs\bar{c}\bar{s}$ tetraquark system