Study of light tetraquark spectroscopy

Abstract

We calculate the masses of the $qq\bar{q}\bar{q}$ tetraquark ground state and first radial excited state in a constituent quark model where the Cornell-like potential and one-gluon exchange spin-spin coupling are employed. The three coupling parameters for the Cornell-like potential and one-gluon exchange spin-spin coupling are proposed mass-dependent in accordance with Lattice QCD data, and all model parameters are predetermined by studying light, charmed and bottom mesons. The theoretical predictions for light tetraquarks are compared with the observed exotic meson states in the light-unflavored meson sector, and tentative assignments are suggested. The work suggests that the $f_0(1500)$ and $f_0(1710)$ might be ground light tetraquark states with $J=0$.

References in corpus (36)

• The $XYZ$ states: experimental and theoretical status and perspectives
• Constituent quark model study of the meson spectra
• Mass spectra and Regge trajectories of light mesons in the relativistic quark model
• Observation of a resonance X(1835) in J/ψ--> γπ^+ π^- η^{\prime}
• Is f0(1710) a glueball?
• Scalar Glueball-qqbar Mixing above 1 GeV and implications for Lattice QCD
• Spin-Parity Analysis of ppbar Mass Threshold Structure in J/psi and psi' Radiative Decays
• High-statistics measurement of neutral-pion pair production in two-photon collisions
• High-statistics measurement of neutral-pion pair production in two-photon collisions
• Scalar isoscalar mesons and the scalar glueball from radiative $J/\psi$ decays
• Partial wave analyses of J/psi to gamma pi^+ pi^- and gamma pi^0 pi^0
• Interquark potential with finite quark mass from lattice QCD
• Partial Wave Analysis of ${\chi }_{c0}\to {\pi }^{+}{\pi }^{-}{K}^{+}{K}^{-}$
• Categorizing resonances X(1835), X(2120) and X(2370) in the pseudoscalar meson family
• Partial wave analysis of $J/\psi \to \gamma \eta \eta$
• Nonchiral enhancement of scalar glueball decay in the Witten-Sakai-Sugimoto model
• Measurement of K^+K^- production in two-photon collisions in the resonant-mass region
• Observation of an anomalous line shape of the ${\eta }^{\prime }{\pi }^{+}{\pi }^{-}$ mass spectrum near the $p\bar{p}$ mass threshold in $J/\psi \to \gamma {\eta }^{\prime }{\pi }^{+}{\pi }^{-}$
• Study of charmonium-like and fully-charm tetraquark spectroscopy
• Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
• Observation and Spin-Parity Determination of the $X(1835)$ in $J/\psi \to \gamma K_S^0{K}_S^0\eta$
• I=0, C=-1 mesons from 1940 to 2410 MeV
• Mass spectrum and strong decays of strangeonium in a constituent quark model
• Baryonia and near-threshold enhancements
• High-statistics study of K^0_S pair production in two-photon collisions
• Scalar mesons and the fragmented glueball
• $X(1835)$ and the New Resonances $X(2120)$ and $X(2370)$ Observed by the BES Collaboration
• Observation of a structure at 1.84 GeV/c${}^2$ in the $3({\pi }^{+}{\pi }^{-})$ mass spectrum in $J/\psi \to \gamma 3({\pi }^{+}{\pi }^{-})$ decays
• A possible explanation of the threshold enhancement in the process $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }$
• X(1835), X(2120) and X(2370) in a flux tube model
• Light Quark Resonances in pbar p Annihilations at 5.2 GeV/c
• Quark-anti-quark potentials from Nambu-Bethe-Salpeter amplitudes on lattice
• Pentaquark components in low-lying baryon resonances
• Analysis of the X(1835) and related baryonium states with Bethe-Salpeter equation
• The Isoscalar Mesons and Exotic States in Light Front Holographic QCD
• Determination of parameters of a potential model for tetraquark study by studying all S-wave mesons