Phenomenology of $P_c(4380{)}^{+}$, $P_c(4450{)}^{+}$ and related states

Abstract

The $P_c(4380{)}^{+}$ and $P_c(4450{)}^{+}$ states recently discovered at LHCb have masses close to several relevant thresholds, which suggests they can be described in terms of meson-baryon degrees of freedom. This article explores the phenomenology of these states, and their possible partners, from this point of view. Competing models can be distinguished by the masses of the neutral partners which have yet to be observed, and the existence or otherwise of further partners with different isospin, spin, and parity. Future experimental studies in different decay channels can also discriminate among models, using selection rules and algebraic relations among decays. Among the several possible meson-baryon pairs which could be important, one implies that the states are mixtures of isospins 1/2 and 3/2, with characteristic signatures in production and decay. A previous experimental study of a Cabibbo-suppressed decay showed no evidence for the states, and further analysis is required to establish the significance of this non-observation. Several intriguing similarities suggest that $P_c(4450{)}^{+}$ is related to the $X(3872)$ meson.

16 pages, 1 figure. Journal version (some very minor changes from arXiv v1)

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Cited by in corpus (115)

• The hidden-charm pentaquark and tetraquark states
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Exotics: Heavy Pentaquarks and Tetraquarks
• Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
• Exotic hadrons: review and perspectives
• Interpretation of the LHCb $P_c$ States as Hadronic Molecules and Hints of a Narrow $P_c(4380)$
• Pentaquark states in a diquark-triquark model
• Exotic Hadrons from Heavy Ion Collisions
• Evidence for exotic hadron contributions to ${\Lambda }_b^0\to J/\psi p{\pi }^{-}$ decays
• Isospin breaking decays as a diagnosis of the hadronic molecular structure of the $P_c(4457)$
• Analysis of the $P_c(4312)$, $P_c(4440)$, $P_c(4457)$ and related hidden-charm pentaquark states with QCD sum rules
• Possible pentaquarks with heavy quarks
• Molecular Interpretation of the $P_c(4440)$ and $P_c(4457)$ States
• Looking for a hidden-charm pentaquark state with strangeness $S=-1$ from ${\Xi }_b^{-}$ decay into $J/\psi K^{-}\Lambda$
• Revisiting the nature of the $P_c$ pentaquarks
• Baryon states with hidden charm in the extended local hidden gauge approach
• $P_c$ pentaquarks with chiral tensor and quark dynamics
• Remarks on the $P_c$ structures and triangle singularities
• Magnetic moments of the hidden-charm pentaquark states
• Possible strange hidden-charm pentaquarks from ${\Sigma }_c^{(\ast )}{\bar{D}}_s^{\ast }$ and ${\Xi }_c^{{(}^{\prime },\ast )}{\bar{D}}^{\ast }$ interactions
• $P_{cs}(4459)$ and other possible molecular states from ${\Xi }_c^{(\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{\prime }{\bar{D}}^{(\ast )}$ interactions
• Interpreting the $X(5568)$
• The ${\Lambda }_b\to J/\psi K^0\Lambda$ reaction and a hidden-charm pentaquark state with strangeness
• The structure of pentaquarks $P_c^{+}$ in the chiral quark model
• Strong decay mode $J/\psi p$ of hidden charm pentaquark states $P_c^{+}(4380)$ and $P_c^{+}(4450)$ in ${\Sigma }_c{\bar{D}}^{\ast }$ molecular scenario
• Coupled channel analysis of molecule picture of $P_c(4380)$
• Analysis of the ${\frac{1}{2}}^{\pm }$ pentaquark states in the diquark-diquark-antiquark model with QCD sum rules
• Hidden-charm and bottom meson-baryon molecules coupled with five-quark states
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• Molecular states from ${\Sigma }_c^{(\ast )}{\bar{D}}^{(\ast )}-{\Lambda }_c{\bar{D}}^{(\ast )}$ interaction
• A hidden-charm $S=-1$ pentaquark from the decay of ${\Lambda }_b$ into $J/\psi \eta \Lambda$
• Disentangling the hadronic molecule nature of the $P_c(4380)$ pentaquark-like structure
• Hidden-charm molecular pentaquarks and their charm-strange partners
• QCD sum rule study of hidden-charm pentaquarks
• Analysis of the $P_{cs}(4459)$ as the hidden-charm pentaquark state with QCD sum rules
• Searching for possible ${\Omega }_c-$like molecular states from ${\Xi }_c^{\ast }\bar{K}/{\Xi }_c{\bar{K}}^{\ast }/{\Xi }_c^{\prime }{\bar{K}}^{\ast }$ interaction
• Hidden-charm pentaquarks and their hidden-bottom and $B_c$-like partner states
• 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
• Production of $P_c$ states from ${\Lambda }_b$ decay
• Structure and decays of hidden heavy pentaquarks
• Theoretical study of the Xi(1620) and Xi(1690) resonances in Xi_c -> pi^+ MB decays
• 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
• Nucleon Resonances with Hidden Charm in $\gamma p$ reactions
• A hidden-charm pentaquark state in ${\Lambda }_b^0\to J/\psi p{\pi }^{-}$ decay
• Heavy-Quark Symmetry Partners of the Pc(4450) Pentaquark
• Analysis of the ${\frac{3}{2}}^{\pm }$ pentaquark states in the diquark-diquark-antiquark model with QCD sum rules
• Decay behaviors of possible ${\Lambda }_{c\bar{c}}$ states in hadronic molecule pictures
• Heavy Baryon-Antibaryon Molecules in Effective Field Theory
• Kinematical Cusp and Resonance Interpretations of the $X(2900)$
• Discriminating among interpretations for the $X(2900)$ states
• Effective field theory for the nucleon-quarkonium interaction
• Hidden Charm Pentaquark $P_c(4380)$ and Doubly Charmed Baryon ${\Xi }_{cc}^{\ast }(4380)$ as Hadronic Molecule States
• Do the $P_c^{+}$ Pentaquarks Have Strange Siblings?
• How to reveal the nature of three or more pentaquark states?
• Neutral hidden charm pentaquark states $P_c^0(4380)$ and $P_c^0(4450)$ in ${\pi }^{-}p\to J/\psi n$ reaction
• Heavy-hadron molecules from light-meson-exchange saturation
• Exotic Doubly Charmed Ds0*(2317)D and Ds1*(2460)D* Molecules
• Heavy Baryons and their Exotics from Instantons in Holographic QCD
• Scale Invariance in Heavy Hadron Molecules
• Analysis of the $\bar{D}{\Sigma }_c$, $\bar{D}{\Sigma }_c^{\ast }$, ${\bar{D}}^{\ast }{\Sigma }_c$ and ${\bar{D}}^{\ast }{\Sigma }_c^{\ast }$ pentaquark molecular states with QCD sum rules
• The magnetic moment of $P_c(4312)$ as a $\bar{D}{\Sigma }_c$ molecular state
• Strong Decay of $P_c(4380)$ Pentaquark in a Molecular Picture
• Exploratory study of possible resonances in the heavy meson - heavy baryon coupled-channel interactions
• Mass behavior of hidden-charm pentaquarks with open-strange inspired by these established $P_c$ molecular states
• Electromagnetic multipole moments of the $P_c^{+}(4380)$ pentaquark in light-cone QCD
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Understanding the nature of the heavy pentaquarks and searching for them in pion-induced reactions
• Spectrum of the $uudc\bar{c}$ hidden charm pentaquark with an SU(4) flavor-spin hyperfine interaction
• Interpretations of the new LHCb $P_c(4337{)}^{+}$ pentaquark state
• Spin-parities of the $P_c(4440)$ and $P_c(4457)$ in the One-Boson-Exchange Model
• Analysis of the hidden-charm pentaquark states based on magnetic moment and transition magnetic moment
• The LHCb state $P_{\psi s}^{\Lambda }(4338)$ as a triangle singularity
• $P_{\psi s}^{\Lambda }(4459)$ and $P_{\psi s}^{\Lambda }(4338)$ as molecular states in $J/\psi \Lambda$ invariant mass spectra
• Strong decay patterns of the hidden-charm pentaquark states $P_c(4380)$ and $P_c(4450)$
• Experimental constraints on the properties of $P_c$ states
• Production of $P_c$ states in ${\Lambda }_b$ decays
• Peaks within peaks and the possible two-peak structure of the Pc(4457): the effective field theory perspective
• Possible Molecular Pentaquark States with Different Spin and Quark Configurations
• On the hidden charm pentaquark-s in ${\Lambda }_b\to J/\psi K^{-}p$ decay
• Heavy Holographic Exotics: Tetraquarks as Efimov States
• Heavy and Strange Holographic Baryons
• The hadronic coupling constants of the lowest hidden-charm pentaquark state with the QCD sum rules in rigorous quark-hadron duality
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• Hadronic molecules with a $\bar{D}$ meson in a medium
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• Pentaquarks and strange tetraquark mesons
• Holographic charm and bottom pentaquarks I: Mass spectra with spin effects
• Hidden charm pentaquark and $\Lambda (1405)$ in the ${\Lambda }_b^0\to {\eta }_c{K}^{-}p(\pi \Sigma )$ reaction
• $J/\psi N$ interactions revisited and ${\Lambda }_b^0\to J/\psi K^{-}({\pi }^{-})p$ decays
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• Spectroscopic Analysis of Hidden-Charm Pentaquarks
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• Hadronic resonances enhanced by thresholds
• Tetraquark mass relations in quark and diquark models
• Pentaquarks in semileptonic ${\Lambda }_b$ decays
• The ${\bar{D}}^{\ast }{\bar{D}}^{\ast }{\Sigma }_c$ Three-Body System
• Radiative decay and axial-vector decay behaviors of octet pentaquark states
• The axial charges of the hidden-charm pentaquark states
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• Towards a theory of baryon resonances
• Analysis of the hidden-charm pentaquark candidates in the $J/\psi p$ mass spectrum with QCD sum rules
• Exotic Heavy Hadrons
• Pentaquark states with hidden charm
• $N^{\ast }$ states with hidden charm and a three-body nature
• Stability of pentaquarks with a two- plus three-body chromoelectric interaction
• Propagators of resonances and rescatterings of the decay products
• Kaon-induced production of strange hidden-charm molecular pentaquarks $P_{\psi s}^{\Lambda }$ from proton