Masses of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ in a relativized quark model

Abstract

In the present work, the mass spectra of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ are systematically investigated in a relativized quark model. The four-body systems including the Coulomb potential, confining potential, spin-spin interactions, and relativistic corrections are solved within the variational method. Our results suggest that the $I{J}^P=01^{+}$ $bb\bar{u}\bar{d}$ state is 54 MeV below the relevant $\bar{B}\bar{B}$ and $\bar{B}{\bar{B}}^{\ast }$ thresholds, which indicates that both strong and electromagnetic decays are forbidden, and thus this state can be a stable one. Its large hidden color component and small root mean square radius demonstrate that it is a compact tetraquark rather than a loosely bound molecule or point-like diquark-antidiquark structure. Our predictions of the doubly heavy tetraquarks may provide valuable information for future experimental searches.

arXiv comment13 pages, 7 figures, comments and suggestions are welcome

References in corpus (81)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV
• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Multiquark Resonances
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Pentaquark and Tetraquark states
• Heavy-Quark QCD Exotica
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Exotics: Heavy Pentaquarks and Tetraquarks
• Observation of two charged bottomonium-like resonances in Y(5S) decays
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• Discovery of doubly-charmed Xi_{cc} baryon implies a stable (b b ubar dbar) tetraquark
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Heavy-quark symmetry implies stable heavy tetraquark mesons $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Multiquark States
• Lattice Prediction for Deeply Bound Doubly Heavy Tetraquarks
• Masses of tetraquarks with two heavy quarks in the relativistic quark model
• Study of doubly heavy tetraquarks in Lattice QCD
• Exotic hadrons: review and perspectives
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Evidence for a $B_s^0{\pi }^{\pm }$ State
• Charmed Tetraquarks Tcc and Tcs from Dynamical Lattice QCD Simulations
• Exotic tetraquark states with the $qq\bar{Q}\bar{Q}$ configuration
• The Tcc = DD* molecular state
• All-heavy tetraquarks
• Lattice QCD investigation of a doubly-bottom $\bar{b}\bar{b}ud$ tetraquark with quantum numbers $I(J^P)=0(1^{+})$
• BB interactions with static bottom quarks from Lattice QCD
• Exotic meson-meson molecules and compact four--quark states
• Evidence for charm-bottom tetraquarks and the mass dependence of heavy-light tetraquark states from lattice QCD
• Exotic $QQ\bar{q}\bar{q}$, $QQ\bar{q}\bar{s}$ and $QQ\bar{s}\bar{s}$ states
• Tetraquarks in a chiral constituent quark model
• Spectrum of the fully-heavy tetraquark state $QQ{\bar{Q}}^{\prime }{\bar{Q}}^{\prime }$
• Tetraquarks with colour-blind forces in chiral quark models
• String dynamics and metastability of fully-heavy tetraquarks
• Doubly-heavy tetraquarks
• Discovery potential of stable and near-threshold doubly heavy tetraquarks at the LHC
• Does A Narrow Tetraquark $cc\bar{u}\bar{d}$ State Exist?
• Search for structure in the $B_s^0{\pi }^{\pm }$ invariant mass spectrum
• Towards the understanding of fully-heavy tetraquark states from various models
• Implications of Heavy Quark-Diquark Symmetry for Excited Doubly Heavy Baryons and Tetraquarks
• Prospects of discovering stable double-heavy tetraquarks at a Tera-$Z$ factory
• Analyzing doubly heavy tetra- and penta-quark states by variational method
• Doubly Heavy Tetraquarks in QCD Sum Rules
• Hidden-charm and bottom tetra- and pentaquarks with strangeness in the hadro-quarkonium and compact tetraquark models
• $ud\bar{b}\bar{b}$ tetraquark resonances with lattice QCD potentials and the Born-Oppenheimer approximation
• Spectroscopy of the hidden-charm $[qc][\bar{q}\bar{c}]$ and $[sc][\bar{s}\bar{c}]$ tetraquarks
• The $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$ in the relativized quark model
• Measurement of the ${\rm Y}$(1S) pair production cross section and search for resonances decaying to ${\rm Y}$(1S)${\mu }^{+}{\mu }^{-}$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for beautiful tetraquarks in the ${\rm Y}(1S)\mu \mu$ invariant-mass spectrum
• Spectroscopy, lifetime and decay modes of the $T_{bb}^{-}$ tetraquark
• Exotic open-flavor $bc\bar{q}\bar{q}$, $bc\bar{s}\bar{s}$ and $qc\bar{q}\bar{b}$, $sc\bar{s}\bar{b}$ tetraquark states
• Analysis of the scalar, axialvector, vector, tensor doubly charmed tetraquark states with QCD sum rules
• Production of doubly charmed tetraquarks with exotic color configurations in electron-positron collisions
• Four-quark Bound States in Chiral SU(3) Quark Model
• Relation between $T_{cc,bb}$ and $X_{c,b}$ from QCD
• Weak decays of the axial-vector tetraquark $T_{bb;\bar{u}\bar{d}}^{-}$
• The Hydrogen Bond of QCD in Doubly Heavy Baryons and Tetraquarks
• The doubly charmed pseudoscalar tetraquarks $T_{cc;\bar{s}\bar{s}}^{++}$ and $T_{cc;\bar{d}\bar{s}}^{++}$
• Weak Decays of Stable Doubly Heavy Tetraquark States
• Exotic $bc\bar{q}\bar{q}$ four-quark states
• Tables of SU(3) Isoscalar Factors
• Production of exotic tetraquarks $QQ\bar{q}\bar{q}$ in heavy-ion collisions at the LHC
• Masses of open charm and bottom tetraquark states in a relativized quark model
• Tetraquark Spectroscopy: A Symmetry Analysis
• Production and detection of doubly charmed tetraquarks
• The Hydrogen Bond of QCD
• Strong decays of double-charmed pseudoscalar and scalar $cc\overline{u}\overline{d}$ tetraquarks
• The $ss\bar{s}\bar{s}$ tetraquark states and the newly observed structure $X(2239)$ by BESIII Collaboration
• Doubly charmed tetraquarks in a diquark-antidiquark model
• Fully-heavy tetraquarks: $bb\bar{c}\bar{c}$ and $bc\bar{b}\bar{c}$
• HALL POST INEQUALITIES: review and application to molecules and tetraquarks
• Double-heavy axial-vector tetraquark $T_{bc;\bar{u}\bar{d}}^0$
• Fully open-flavor tetraquark states $bc\bar{q}\bar{s}$ and $sc\bar{q}\bar{b}$ with $J^P=0^{+},1^{+}$
• Production of four-quark states with double heavy quarks at LHC
• Semileptonic decays of the scalar tetraquark $Z_{bc;\overline{u}\overline{d}}^0$
• Holographic tetraquarks and the newly observed $T_{cc}^{+}$ at LHCb

Cited by in corpus (56)

• An updated review of the new hadron states
• Observation of an exotic narrow doubly charmed tetraquark
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• A survey of heavy-heavy hadronic molecules
• Coupled-channel approach to $T_{cc}^{+}$ including three-body effects
• Masses of fully heavy tetraquarks $QQ\bar{Q}\bar{Q}$ in an extended relativized quark model
• Probing the long-range structure of the $T_{cc}^{+}$ with the strong and electromagnetic decays
• $X_0(2866)$ as a $D^{\ast }{\bar{K}}^{\ast }$ molecular state
• $T_{cc}^{+}$ and its partners
• A lattice investigation of exotic tetraquark channels
• Masses of Doubly Heavy Tetraquarks with Error Bars
• Discovery potentials of double-charm tetraquarks
• $T_{cc}^{+}(3875)$ relevant $D{D}^{\ast }$ scattering from $N_f=2$ lattice QCD
• Open charm and bottom tetraquarks in an extended relativized quark model
• Hadronic molecule interpretation of $T_{cc}^{+}$ and its beauty-partners
• Masses and magnetic moments of hadrons with one and two open heavy quarks: heavy baryons and tetraquarks
• Doubly heavy tetraquarks in an extended chromomagnetic model
• Mass spectra of doubly heavy tetraquarks in an improved chromomagnetic interaction model
• Tetraquark bound states in constituent quark models: benchmark test calculations
• New scalar resonance $X_0(2900)$ as a ${\overline{D}}^{\ast }{K}^{\ast }$ molecule: Mass and width
• Doubly heavy tetraquarks in a chiral-diquark picture
• Exotic Tetraquark states with two $\bar{b}$-quarks and $J^P=0^{+}$ and $1^{+}$ $B_s$ states in a nonperturbatively-tuned Lattice NRQCD setup
• Search for $\bar{b}\bar{b}us$ and $\bar{b}\bar{c}ud$ tetraquark bound states using lattice QCD
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Shallow Bound States and Hints for Broad Resonances with Quark Content $\bar{b}\bar{c}ud$ in $B$-$\bar{D}$ and $B^{\ast }$-$\bar{D}$ Scattering from Lattice QCD
• Bound isoscalar axial-vector $bc\bar{u}\bar{d}$ tetraquark $T_{bc}$ from lattice QCD using two-meson and diquark-antidiquark variational basis
• Heavy flavor molecular states with strangeness
• The quasi-fission phenomeonon of double charm $T_{cc}^{+}$ induced by nucleon
• Investigation of the possible $D{\bar{D}}^{\ast }$/$B{\bar{B}}^{\ast }$ and $D{D}^{\ast }$/$\bar{B}{\bar{B}}^{\ast }$ molecule states
• Doubly heavy tetraquark states $cc\bar{u}\bar{d}$ and $bb\bar{u}\bar{d}$
• Monte-Carlo Based QCD Sum Rules Analysis of $X_0(2900)$ and $X_1(2900)$
• A new group of doubly charmed molecule with $T$-doublet charmed meson pair
• Doubly heavy tetraquark states in the constituent quark model using diffusion Monte Carlo method
• Masses and Magnetic Moments of Doubly Heavy Tetraquarks via Diffusion Monte Carlo Method
• Fully heavy pentaquark states in constituent quark model
• Triply-heavy tetraquarks in an extended relativized quark model
• Systematic analysis of strange single heavy baryons ${\Xi }_c$ and ${\Xi }_b$
• Doubly heavy tetraquark bound and resonant states
• Study of isoscalar scalar $bc\bar{u}\bar{d}$ tetraquark $T_{bc}$ from lattice QCD
• Mass spectra of doubly heavy tetraquarks in diquark-antidiquark picture
• Flavor Exotic Triply-Heavy Tetraquark States in AdS/QCD Potential
• Doubly heavy tetraquark states in a mass splitting model
• Double-heavy tetraquarks with strangeness in the chiral quark model
• Masses of doubly heavy tetraquarks $QQ\bar{n}\bar{q}$ with $J^P=1^{+}$
• Isospin violation effect and three-body decays of the $T_{cc}^{+}$ state
• Lattice study of $cc\bar{u}\bar{s}$ tetraquark channel in $D^{(\ast )}{D}_s^{(\ast )}$ scattering
• Heavy-quark dominance and fine structure of excited heavy baryons ${\Sigma }_Q$, ${\Xi }_Q^{\prime }$ and ${\Omega }_Q$
• Investigating the Isospin Property of $T_{cc}^{+}$ from its Dalitz Plot Distribution
• Hunting for the prospective $T_{cc}$ family based on the diquark-antidiquark configuration
• Determination of the spectroscopic parameters of beauty-partners of $T_{cc}$ from QCD
• Spectroscopic study of $ss\bar{b}\bar{b}$ and $bb\bar{b}\bar{b}$ Tetraquarks using Regge phenomenology
• $P$-wave states $T_{bb}^{-}$ from diquarks
• The doubly-charmed pentaquark in a quark model with a complete set of harmonic oscillator bases
• Mass spectra of singly heavy baryons in the relativized quark model with heavy-quark dominance
• $D^{(\ast )}{\bar{B}}^{(\ast )}$ dynamics in chiral effective field theory
• Binding energy of the $T_{bb}$ tetraquark from lattice QCD with relativistic and nonrelativistic heavy-quark actions