Fully-heavy tetraquark spectroscopy in the relativistic quark model

Abstract

Masses of the ground and excited (1P, 2S, 1D, 2P, 3S) states of the fully-heavy tetraquarks, composed of charm ($c$) and bottom ($b$) quarks and antiquarks, are calculated in the diquark-antidiquark picture within the relativistic quark model based on the quasipotential approach and quantum chromodynamics. The quasipotentials of the quark-quark and diquark-antidiquark interactions are constructed similarly to the previous consideration of mesons and baryons. Relativistic effects are consistently taken into account. A tetraquark is considered as a bound state of a diquark and an antidiquark. The finite size of the diquark is taken into account, using the form factors of the diquark-gluon interaction. It is shown that most of the investigated states of tetraquarks lie above the decay thresholds into a meson pair, as a result they can be observed only as broad resonances. The narrow state X(6900) recently discovered in the di-$J/\psi$ production spectrum by the LHCb, CMS and ATLAS Collaborations corresponds to an excited state of the fully-charmed tetraquark. Other recently discovered exotic heavy resonances X(6200), X(6400), X(6600), X(7200), X(7300) can also be interpreted as the different excitations of the fully-charmed tetraquark.

36 pages, 2 figures

References in corpus (32)

• An updated review of the new hadron states
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Masses of tetraquarks with two heavy quarks in the relativistic quark model
• $QQ\bar{Q}\bar{Q}$ states: masses, production, and decays
• Heavy tetraquarks in the relativistic quark model
• Hadronic atoms in QCD + QED
• How Resonances can synchronise with Thresholds
• Scalar Fully-heavy Tetraquark States $Q{Q}^{\prime }\bar{Q}\overline{Q^{\prime }}$ in QCD Sum Rules
• Nonrelativistic Treatment of Fully-Heavy Tetraquarks as Diquark-Antidiquark States
• Tetraquark state $X(6900)$ and the interaction between diquark and antidiquark
• Nonrelativistic model of tetraquarks and predictions for their masses from fits to charmed and bottom meson data
• Study of charmonium-like and fully-charm tetraquark spectroscopy
• Exotic resonances of fully-heavy tetraquarks in a lattice-QCD insipired quark model
• Higher mass spectra of the fully-charmed and fully-bottom tetraquarks
• Mass spectra and wave functions of $T_{QQ\bar{Q}\bar{Q}}$ tetraquarks
• Higher fully-charmed tetraquarks: Radial excitations and P-wave states
• $S$-wave fully charmed tetraquark resonant states
• Analysis of the $X(6600)$, $X(6900)$, $X(7300)$ and related tetraquark states with the QCD sum rules
• All-charm tetraquark in front form dynamics
• The lineshape of the compact fully heavy tetraquark
• Spectroscopy of all charm tetraquark states
• Exotic fully-heavy $Q\bar{Q}Q\bar{Q}$ tetraquark states in $8_{[Q\bar{Q}]}\otimes 8_{[Q\bar{Q}]}$ color configuration
• NLO results with operator mixing for fully heavy tetraquarks in QCD sum rules
• Masses of fully-heavy tetraquark states from a four-quark static potential model
• X(6200) as a compact tetraquark in the QCD string model
• HALL POST INEQUALITIES: review and application to molecules and tetraquarks
• Investigation of the stability for fully-heavy $bc\bar{b}\bar{c}$ tetraquark states
• The bosonic algebraic approach applied to the $[QQ][\bar{Q}\bar{Q}]$ tetraquarks
• Bottom Tetraquark Production at RHIC?
• Hyperspherical harmonic study of identical-flavor four-quark systems
• Application of the triangulated category to the explanation of fully-charm tetraquark mass

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• The $S$- and $P$-wave fully charmed tetraquark states and their radial excitations
• Exploring fully heavy scalar tetraquarks $QQ\overline{Q}\overline{Q}$
• Going in quest of potential tetraquark interpretations for the newly observed $T_{\psi \psi }$ states in light of the diquark-antidiquark scenarios
• Relativistic description of asymmetric fully heavy tetraquarks in the diquark-antidiquark model
• Light quark fragmentation into S-wave fully charmed tetraquark
• Fragmentation functions for axial-vector heavy tetraquarks: A TQ4Q1.1 update
• P-wave fully charm and fully bottom tetraquark states
• Unwinding the rare $\Omega$ sector: Fragmentation of fully charmed baryons from HL-LHC to FCC
• Regge trajectory relation for the universal description of the heavy-heavy systems: diquarks, mesons, baryons and tetraquarks
• Triply Heavy $\Omega$ Baryons with JETHAD: A High-Energy Viewpoint
• Prediction of charmed-bottom pentaquarks in quark model
• $\lambda$ and $\rho$ Regge trajectories for hidden bottom and charm tetraquarks $(Qq)(\bar{Q}{\bar{q}}^{\prime })$
• Spectroscopic study of $ss\bar{b}\bar{b}$ and $bb\bar{b}\bar{b}$ Tetraquarks using Regge phenomenology
• Unified tetraquark equations
• Fully heavy tetraquark states with a diquark-antidiquark configuration
• Systematic study of fully heavy-flavored tetraquarks $Q_1{Q}_2{\bar{Q}}_1{\bar{Q}}_2(Q_{1;2}\in \left\{b;c\right\})$: Mass spectra, threshold analysis, and confrontation with LHC data