Exotic Heavy Hadrons

Abstract

We review our recent findings on the structure and properties of exotic heavy hadrons, focusing on two main topics. First, we examine the role of correlations driven by the short-range Coulomb-like color interaction in hidden heavy-flavor pentaquarks. We show how this framework consistently accounts for the observed pattern of $P_c$ and $P_{cs}$ states in the hidden-charm sector and enables predictions for the hidden-bottom sector, where experimental data are still lacking. The second topic explores the possibility of forming stable multihadron molecules from deeply bound two-hadron exotic states. In this context, a bound state of three $B$ mesons, denoted as $T_{bbb}$, with quantum numbers $(I)J^P=(1/2)2^{-}$, is presented. We find that the binding energy generally decreases as the number of hadrons increases, primarily due to effects of the Pauli principle and the appearance of new decay thresholds. Nonetheless, resonances may still arise in specific cases, depending on the internal thresholds of the system. Finally, we discuss how the decay width of an exotic multihadron resonance can offer valuable insights into its internal structure and underlying~dynamics.

Invited review, 32 pages

References in corpus (115)

• 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
• The $XYZ$ states: experimental and theoretical status and perspectives
• Multiquark Resonances
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Pentaquark and Tetraquark states
• Heavy-Quark QCD Exotica
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Exotics: Heavy Pentaquarks and Tetraquarks
• Exotica
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• A review of the open charm and open bottom systems
• Observation of an exotic narrow doubly charmed tetraquark
• 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-
• Study of the doubly charmed tetraquark $T_{cc}^{+}$
• New Exotic Meson and Baryon Resonances from Doubly-Heavy Hadronic Molecules
• Heavy-quark symmetry implies stable heavy tetraquark mesons $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Chiral Unitary approach to meson-meson and meson-baryon interactions and nuclear applications
• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• The New Pentaquarks in the Diquark Model
• Hadro-Charmonium
• Dynamically generated $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances in the hidden charm sector around 4.3 GeV
• Evidence of a $J/\psi \Lambda$ structure and observation of excited ${\Xi }^{-}$ states in the ${\Xi }_b^{-}\to J/\psi \Lambda K^{-}$ decay
• Multiquark States
• The possible hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• Quark-model study of few-baryon systems
• Combining heavy quark spin and local hidden gauge symmetries in the dynamical generation of hidden charm baryons
• Lattice Prediction for Deeply Bound Doubly Heavy Tetraquarks
• Sigma_c Dbar and Lambda_c Dbar states in a chiral quark model
• Study of doubly heavy tetraquarks in Lattice QCD
• Evidence for the two pole structure of the Lambda(1405) resonance
• Exotic hadrons: review and perspectives
• Phenomenology of $P_c(4380{)}^{+}$, $P_c(4450{)}^{+}$ and related states
• Pentaquark states in a diquark-triquark model
• Exploring the molecular scenario of $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$
• Nucleon Resonances with Hidden Charm in Coupled-Channel Models
• Observation of a $J/\psi \Lambda$ resonance consistent with a strange pentaquark candidate in $B^{-}\to J/\psi \Lambda \bar{p}$ decays
• Charmed Tetraquarks Tcc and Tcs from Dynamical Lattice QCD Simulations
• Most Strange Dibaryon from Lattice QCD
• Tetra- and penta-quark structures in the constituent quark model
• Exotic tetraquark states with the $qq\bar{Q}\bar{Q}$ configuration
• On the History of Dibaryons and their Final Observation
• BB interactions with static bottom quarks from Lattice QCD
• Exotic meson-meson molecules and compact four--quark states
• The hidden charm pentaquark states and ${\Sigma }_c{\bar{D}}^{(\ast )}$ interaction in chiral perturbation theory
• Observation of Lambda H-4 hyperhydrogen by decay-pion spectroscopy in electron scattering
• Exotic $QQ\bar{q}\bar{q}$, $QQ\bar{q}\bar{s}$ and $QQ\bar{s}\bar{s}$ states
• Hidden-charm pentaquarks and $P_c$ states
• Tetraquarks in a chiral constituent quark model
• Possible pentaquarks with heavy quarks
• Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory
• The Search for Beauty-fully Bound Tetraquarks Using Lattice Non-Relativistic QCD
• Three body resonances in two meson-one baryon systems
• A numerical algorithm for the explicit calculation of SU(N) and SL(N,C) Clebsch-Gordan coefficients
• Analysis of $P_c^{+}(4380)$ and $P_c^{+}(4450)$ as pentaquark states in the molecular picture with QCD sum rules
• Hidden-charm and hidden-bottom molecular pentaquarks in chiral perturbation theory
• On LHCb pentaquarks as a baryon-psi(2S) bound state -- prediction of isospin 3/2 pentaquarks with hidden charm
• Few-body quark dynamics for doubly-heavy baryons and tetraquarks
• Narrow Nucleon-$\psi (2S)$ Bound State and LHCb Pentaquarks
• A lattice investigation of exotic tetraquark channels
• Issues and Opportunities in Exotic Hadrons
• Stable double-heavy tetraquarks: spectrum and structure
• Constituent quark model study of light- and strange-baryon spectra
• Hidden-charm and bottom tetra- and pentaquarks with strangeness in the hadro-quarkonium and compact tetraquark models
• Dibaryon with highest charm number near unitarity from lattice QCD
• The structure of pentaquarks $P_c^{+}$ in the chiral quark model
• Stability of tetrons
• Hidden-charm and bottom meson-baryon molecules coupled with five-quark states
• Quark model estimate of hidden-charm pentaquark resonances
• Deuteron-like heavy dibaryons from Lattice QCD
• Hidden-charm pentaquarks as a meson-baryon molecule with coupled channels for ${\bar{D}}^{(\ast )}{\Lambda }_{\mathrm{c}}$ and ${\bar{D}}^{(\ast )}{\Sigma }_{\mathrm{c}}^{(\ast )}$
• Spectroscopy, lifetime and decay modes of the $T_{bb}^{-}$ tetraquark
• Phenomenological study of hadron interaction models
• The Dynamical Diquark Model: First Numerical Results
• Novel Charmonium and Bottomonium Spectroscopies due to Deeply Bound Hadronic Molecules from Single Pion Exchange
• $DK$, $DDK$, and $DDDK$ molecules--understanding the nature of the $D_{s0}^{\ast }(2317)$
• Coupled-channel effects of the ${\Sigma }_c^{(\ast )}{\bar{D}}^{(\ast )}$-${\Lambda }_c(2595)\bar{D}$ system and molecular nature of the $P_c$ pentaquark states from one-boson exchange model
• Hidden-charm pentaquarks and their hidden-bottom and $B_c$-like partner states
• The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb $P_{\mathrm{c}}(4380)$ and $P_{\mathrm{c}}(4450)$ states
• Probing new types of $P_c$ states inspired by the interaction between an $S$-wave charmed baryon and an anticharmed meson in a $\bar{T}$ doublet state
• $J/\Psi$-nuclear bound states
• Hidden-Bottom Pentaquarks
• Mass spectrum of the hidden-charm pentaquarks in the compact diquark model
• Decay behaviors of possible ${\Lambda }_{c\bar{c}}$ states in hadronic molecule pictures
• Exploring a ${\Sigma }_c\bar{D}$ state: with focus on $P_c(4312{)}^{+}$
• S-wave scattering of strangeness -3 baryons
• Investigation of hidden-charm pentaquarks with strangeness $S=-1$
• Few-body systems consisting of mesons
• Hidden charm pentaquarks with color-octet substructure in QCD Sum Rules
• Very heavy flavored dibaryons
• Hidden charm pentaquark states in a diquark model
• Analysis of the hidden-charm pentaquark molecular states with strangeness and without strangeness via the QCD sum rules
• Probabilities in nonorthogonal basis: Four--quark systems
• Stable heavy pentaquarks in constituent models
• Strongly Bound Dibaryon with Maximal Beauty Flavor from Lattice QCD
• Compact $sssc\bar{c}$ pentaquark states predicted by a quark model
• Diquark properties from full QCD lattice simulations
• Model independent extraction of the pole and Breit-Wigner resonance parameters
• Model-independent resonance parameter extraction using the trace of K and T matrices
• ${\eta }_c$-nucleus bound states
• Pentaquarks with anticharm or beauty revisited
• Pion-assisted charmed dibaryon candidate
• The interplay between compact and molecular structures in tetraquarks
• Charmed baryon$-$nucleon interaction
• $T_{bbb}$: a three $B-$meson bound state
• Tri-meson bound state $BB{B}^{\ast }$ via delocalized $\pi$~Bond
• Evidence supporting the existence of $P_c(4380{)}^{\pm }$ from the recent measurements of $B_s\to J/\psi p\bar{p}$
• Width of a two-body coupled-channel resonance
• Hidden-flavor pentaquarks
• Strange pentaquarks and excited $\Xi$ hyperons in ${\Xi }_b^{-}\to J/\psi \Lambda K^{-}$ final states
• $(I,J^P)=(1,1/2^{+})$ $\Sigma NN$ quasibound state
• Pauli principle forbids ${\Omega }_{QQQ}{\Omega }_{QQQ}{\Omega }_{QQQ}$ bound states

Cited by in corpus (1)

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