Pentaquarks and resonances in the $pJ/\psi$ spectrum

Abstract

We consider exotic baryons with hidden charm as antiquark-diquark-diquark composite systems. Spin and isospin structure of such exotic states is given and masses are estimated. The data for production of pentaquarks in the reaction ${\Lambda }_b\to K^{-}pJ/\psi$ are discussed. We suggest that the narrow peak in $pJ/\psi$ spectra at 4450 MeV is antiquark-diquark-diquark state with negative parity, $5/2^{-}(4450)$, while the broad bump $3/2^{+}(4380)$ is the result of rescatterings in the ($pJ/\psi$)-channel. Positions of other pentaquarks with negative parity are estimated.

5 pages

Cited by in corpus (51)

• Multiquark Resonances
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• Analysis of the $P_c(4380)$ and $P_c(4450)$ as pentaquark states in the diquark model with QCD sum rules
• Formation of hidden-charm pentaquarks in photon-nucleon collisions
• Pentaquark states in a diquark-triquark model
• Exotic Hadrons from Heavy Ion Collisions
• Photoproduction of hidden charm pentaquark states $P_c^{+}(4380)$ and $P_c^{+}(4450)$
• Isospin breaking decays as a diagnosis of the hadronic molecular structure of the $P_c(4457)$
• Interpretation of the Narrow $J/\psi p$ Peaks in ${\Lambda }_b\to J/\psi p{K}^{-}$ Decay in the Compact Diquark Model
• Some Predictions of Diquark Model for Hidden Charm Pentaquark Discovered at the LHCb
• Analysis of $P_c^{+}(4380)$ and $P_c^{+}(4450)$ as pentaquark states in the molecular picture with QCD sum rules
• On LHCb pentaquarks as a baryon-psi(2S) bound state -- prediction of isospin 3/2 pentaquarks with hidden charm
• Studying the P_c(4450) resonance in J/psi photoproduction off protons
• Magnetic moments of the hidden-charm pentaquark states
• On the pentaquark candidates $P_c^{+}(4380)$ and $P_c^{+}(4450)$ within the soliton picture of baryons
• The ${\Lambda }_b\to J/\psi K^0\Lambda$ reaction and a hidden-charm pentaquark state with strangeness
• Non-strange and strange pentaquarks with hidden charm
• Coupled channel analysis of molecule picture of $P_c(4380)$
• Hidden-charm molecular pentaquarks and their charm-strange partners
• $J/\psi ({\eta }_c)N$ and ${\rm Y}({\eta }_b)N$ cross sections
• 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
• A hidden-charm pentaquark state in ${\Lambda }_b^0\to J/\psi p{\pi }^{-}$ decay
• Hidden-Bottom Pentaquarks
• Analysis of the ${\frac{3}{2}}^{\pm }$ pentaquark states in the diquark-diquark-antiquark model with QCD sum rules
• Heavy quark symmetry and weak decays of the $b$-baryons in pentaquarks with a $c\bar{c}$ component
• Investigation of $P_{cs}(4459{)}^0$ pentaquark via its strong decay to $\Lambda J/\Psi$
• Recently observed $P_c$ as molecular states and possible mixture of $P_c(4457)$
• Pentaquarks with hidden charm as hadroquarkonia
• 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?
• Investigating the hidden-charm and hidden-bottom pentaquark resonances in scattering process
• Double Polarization Observables in Pentaquark Photoproduction
• 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
• Understanding the nature of the heavy pentaquarks and searching for them in pion-induced reactions
• Hidden Bottom Pentaquark States with Spin 3/2 and 5/2
• Partial decay widths of $P_c(4312)$ as a $\bar{D}{\Sigma }_c$ molecular state
• Heavy pentaquark states and a novel color structure
• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• Possible Molecular Pentaquark States with Different Spin and Quark Configurations
• The hadronic coupling constants of the lowest hidden-charm pentaquark state with the QCD sum rules in rigorous quark-hadron duality
• Narrow pentaquarks as diquark-diquark-antiquark systems
• Exotic pentaquark states with the $qqQQ\bar{Q}$ configuration
• Pentaquarks and strange tetraquark mesons
• $J/\psi N$ interactions revisited and ${\Lambda }_b^0\to J/\psi K^{-}({\pi }^{-})p$ decays
• Studying the Pc(4450) resonance in J/psi photoproduction off protons
• First observation of the decay ${\Lambda }_b^0\to {\eta }_c(1S)p{K}^{-}$
• Pentaquarks in semileptonic ${\Lambda }_b$ decays
• First observation of $\gamma \gamma \to p\bar{p}{K}^{+}{K}^{-}$ and search for exotic baryons in $pK$ systems
• Multiquark Hadrons