Systematic exploration of triply heavy tetraquarks: spectroscopic and decay characteristics

Abstract

While hidden, singly, doubly, and fully heavy tetraquark states have been experimentally observed, triply heavy tetraquark states remain experimentally unconfirmed. We systematically investigate the spectroscopic and decay properties of four triply heavy-flavor tetraquark systems ($cc\bar{c}\bar{n}$, $cc\bar{c}\bar{s}$, $bb\bar{b}\bar{n}$, $bb\bar{b}\bar{s}$; $n=u,d$) based on the nonrelativistic quark model. Using an effective Hamiltonian, we employ the Gaussian expansion method to solve the four-body Schrödinger equation and incorporate the effect of color-spin configuration mixing. Results show both $cc\bar{c}\bar{q}$ and $bb\bar{b}\bar{q}$ systems have two $J^P=0^{+}$, three $J^P=1^{+}$, and one $J^P=2^{+}$ states, with ground-state masses of 5.2-5.5 GeV and 15.0-15.3 GeV, respectively. Root-mean-square radius analysis supports compact tetraquark configurations. All states are unstable, with rearrangement strong decays dominant and negligible radiative decays. Narrow resonances (e.g., $T_{c^2\bar{c}\bar{s}}(5360,0^{+})$, $T_{b^2\bar{b}\bar{n}}(15148,2^{+})$) arise from Feynman amplitude cancellation. We propose experimental searches in $J/\psi D_s^{\ast }$/ ${\eta }_c{D}_s$ (5.3-5.4 GeV) and ${\rm Y}{B}^{\ast }$ (15.1-15.2 GeV) channels, providing key guidance for triply heavy tetraquark identification.

18 pages, 4 figures, 4 tables

References in corpus (54)

• Pentaquark and Tetraquark states
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• An updated review of the new hadron states
• Observation of structure in the $J/\psi$-pair mass spectrum
• Observation of an exotic narrow doubly charmed tetraquark
• Study of the doubly charmed tetraquark $T_{cc}^{+}$
• The Exotic XYZ Charmonium-like Mesons
• Evidence of a $J/\psi \Lambda$ structure and observation of excited ${\Xi }^{-}$ states in the ${\Xi }_b^{-}\to J/\psi \Lambda K^{-}$ decay
• Amplitude analysis of the $B^{+}\to D^{+}{D}^{-}{K}^{+}$ decay
• Observation of new resonances decaying to $J/\psi K^{+}$ and $J/\psi \varphi$
• Model-independent study of structure in $B^{+}\to D^{+}{D}^{-}{K}^{+}$ decays
• Dynamically generated 1^+ heavy mesons
• Observation of a $J/\psi \Lambda$ resonance consistent with a strange pentaquark candidate in $B^{-}\to J/\psi \Lambda \bar{p}$ decays
• Strong and radiative decays of the low-lying $S$- and $P$-wave singly heavy baryons
• Masses of fully heavy tetraquarks $QQ\bar{Q}\bar{Q}$ in an extended relativized quark model
• Charmonium spectrum and their electromagnetic transitions with higher multipole contributions
• New structures in the J/$\psi$J/$\psi$ mass spectrum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Observation of an excess of di-charmonium events in the four-muon final state with the ATLAS detector
• Mass spectra and radiative transitions of doubly heavy baryons in a relativized quark model
• Doubly-hidden scalar heavy molecules and tetraquarks states from QCD at NLO
• Strong and radiative decays of the doubly charmed baryons
• First observation of a doubly charged tetraquark and its neutral partner
• A lattice investigation of exotic tetraquark channels
• Scalar Fully-heavy Tetraquark States $Q{Q}^{\prime }\bar{Q}\overline{Q^{\prime }}$ in QCD Sum Rules
• $X(4140)$, $X(4270)$, $X(4500)$ and $X(4700)$ and their $cs\bar{c}\bar{s}$ tetraquark partners
• Amplitude analysis of $B^0\to {\overline{D}}^0{D}_s^{+}{\pi }^{-}$ and $B^{+}\to D^{-}{D}_s^{+}{\pi }^{+}$ decays
• Mass spectrum and strong decays of tetraquark $\bar{c}\bar{s}qq$ states
• The Doubly-heavy Tetraquarks ($q{q}^{\prime }\bar{Q}\overline{Q^{\prime }}$) in a Constituent Quark Model with a Complete Set of Harmonic Oscillator Bases
• Tetraquark bound states in constituent quark models: benchmark test calculations
• Observation of a resonant structure near the $D_s^{+}{D}_s^{-}$ threshold in the $B^{+}\to D_s^{+}{D}_s^{-}{K}^{+}$ decay
• Spectroscopy behavior of fully heavy tetraquarks
• One Born$-$Oppenheimer Effective Theory to rule them all: hybrids, tetraquarks, pentaquarks, doubly heavy baryons and quarkonium
• Benchmark calculations of fully heavy compact and molecular tetraquark states
• Triply heavy tetraquark states with the $QQ\bar{Q}\bar{q}$ configuration
• Charmed-strange tetraquarks and their decays in a potential quark model
• Correlation of the hidden-charm molecular tetraquarks and the charmoniumlike structures existing in the $B\to XYZ+K$
• Newly observed $X(4630)$: a new charmoniumlike molecule
• Surveying the mass spectra and the electromagnetic properties of the ${\Xi }_c^{(\prime ,\ast )}{D}^{(\ast )}$ molecular pentaquarks
• Determination of the spin and parity of all-charm tetraquarks
• Fully heavy pentaquark states in constituent quark model
• Triply-heavy tetraquarks in an extended relativized quark model
• Triply heavy $QQ\bar{Q}\bar{q}$ tetraquark states
• Pair structure of heavy tetraquark systems
• Flavor Exotic Triply-Heavy Tetraquark States in AdS/QCD Potential
• Refining radiative decay studies in singly heavy baryons
• Weak Decays of Triply Heavy Tetraquarks $b\bar{c}b\bar{q}$
• Triply heavy tetraquark states: masses and other properties
• Exploring the mass spectrum and the electromagnetic properties of the possible ${\Xi }_{cc}{K}^{(\ast )}$ and ${\Xi }_{cc}{\bar{K}}^{(\ast )}$ molecules
• Triply heavy baryon spectroscopy revisited
• Doubly charmed hexaquarks in the diquark picture
• Probing exotic $J^{PC}$ resonances from deeply bound charmoniumlike molecules: Insights for identifying exotic hadrons
• Triply heavy tetraquark states in a mass-splitting model
• Electromagnetic properties of possible triple-charm molecular hexaquarks
• The doubly-charmed pentaquark in a quark model with a complete set of harmonic oscillator bases