Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$

Abstract

A narrow pentaquark state, $P_c(4312{)}^{+}$, decaying to $J/\psi p$ is discovered with a statistical significance of $7.3\sigma$ in a data sample of ${\Lambda }_b^0\to J/\psi p{K}^{-}$ decays which is an order of magnitude larger than that previously analyzed by the LHCb collaboration. The $P_c(4450{)}^{+}$ pentaquark structure formerly reported by LHCb is confirmed and observed to consist of two narrow overlapping peaks, $P_c(4440{)}^{+}$ and $P_c(4457{)}^{+}$, where the statistical significance of this two-peak interpretation is $5.4\sigma$. Proximity of the ${\Sigma }_c^{+}{\bar{D}}^0$ and ${\Sigma }_c^{+}{\bar{D}}^{\ast 0}$ thresholds to the observed narrow peaks suggests that they play an important role in the dynamics of these states.

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2019-014.html

References in corpus (6)

• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Could the near-threshold $XYZ$ states be simply kinematic effects?
• A Theory of X and Z Multiquark Resonances
• Search for structure in the $B_s^0{\pi }^{\pm }$ invariant mass spectrum
• How Resonances can synchronise with Thresholds
• Tetraquark Cusp Effects from Diquark Pair Production

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• First evidence of $CP$ violation in beauty baryon to charmonium decays
• Predicting the Masses of Exotic Hadrons with Data Augmentation Using Multilayer Perceptron
• Experimental summary: QCD session of the 54th Rencontres de Moriond (Moriond QCD 2019)
• Production of $X_{cs\bar{c}\bar{s}}$ in heavy ion collisions
• $D$-wave excited $cs\bar{c}\bar{s}$ tetraquark states with $J^{PC}=1^{++}$ and $1^{+-}$
• First observation of the ${\Lambda }_b^0\to {\Lambda }_c^{+}{D}_s^{-}{K}^{+}{K}^{-}$ decay and search for pentaquarks in the ${\Lambda }_c^{+}{D}_s^{-}$ system
• Strong decays of the $P_{cs}(4338)$ and its high isospin cousin via the QCD sum rules
• Search for the $N$(1685) in $\eta \pi$-Photoproduction
• Nature of $X(2370)$
• Strong decays of the $P_c(4312)$ and its isospin cousin via the QCD sum rules
• Quantum Numbers of the Pentaquark States $P_c^{+}$ via Symmetry Analysis
• $N^{\ast }$ states with hidden charm and a three-body nature
• Production of hidden-heavy and double-heavy hadronic molecules at the $Z$ factory of CEPC
• Learning Pole Structures of Hadronic States using Predictive Uncertainty Estimation
• Study of Fully heavy Pentaquarks using extended Gursey-Radicati formalism
• Lattice spectroscopy with focus on exotics
• Five-flavor molecular pentaquarks in the ${\Xi }_b^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{(\prime ,\ast )}{B}^{(\ast )}$ systems
• Hadronic molecules and multiquark states
• Spectrum of Hidden-Charm, Open-Strange Exotics in the Dynamical Diquark Model
• Quark-model search for compact $c\bar{c}uds$ pentaquark states
• Analytic electromagnetic signatures of compact pentaquark structure: A multi-current QCD light-cone sum rules analysis of the $P_{\psi s}^{\Lambda }$ states
• Molecular pentaquarks composed of a ground-state octet baryon and a $P-$wave anticharmed meson
• Study of $e^{+}{e}^{-}\to h^{+}{h}^{-}J/\psi (h=\pi ,K,p)$ via initial-state radiation at Belle~II
• Searching for a $P_{cs}(4200)$ state in the ${\Lambda }_b\to \varphi {\eta }_c\Lambda$ reaction
• Exotic hadrons associated with $b$-quark
• Systematic exploration of triply heavy tetraquarks: spectroscopic and decay characteristics
• Possible ${\bar{D}}^{(\ast )}{\Xi }_{cc}^{(\ast )}$ and ${\Xi }_{cc}^{(\ast )}{\Xi }_{cc}^{(\ast )}$ molecules as superflavor partners of $T_{cc}$
• Interactions between two heavy mesons within heavy meson chiral effective field theory
• Role of the short-range dynamics in simultaneous interpretation of $P_{cs}$ pentaqurks via ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ molecules
• Heavy-flavor multimodal fragmentation to $S$-wave pentacharms at next-generation hadron colliders
• Compositness and wave function of shallow bound states in relation to scattering observables
• Qualitative analysis of proton inelastic scattering for diquark searching
• Proposal to detect a moving triangle singularity in $\psi (2S)\to {\pi }^{+}{\pi }^{-}{K}^{+}{K}^{-}$ process
• Wigner rotations for cascade reactions
• Prospects for compact hexaquarks under the limitation imposed by quark confinement
• Predicting charmed-strange molecular tetraquarks with $K^{(\ast )}$ and $T$-doublet charmed or anticharmed meson
• Strange pentaquark molecules in QCD sum rules