Fine Structure of Pentaquark Multiplets in the Dynamical Diquark Model

Abstract

We apply the dynamical diquark model to predict the spectrum of hidden-charm pentaquark states in both unflavored and open-strange sectors. Using only Hamiltonian parameters introduced in the tetraquark $S$- and $P$-wave multiplets, the model naturally produces the level spacing supported by the most recent LHCb results for $P_c$ structures. Furthermore, using model inputs obtained from data of hidden-charm, open-strange tetraquarks ($Z_{cs}$), we predict the spectrum of $P_{cs}$ states, including the recently observed $P_{cs}(4459)$. We find all pentaquark candidates observed to date to belong to the $1P$ multiplet and hence have positive parity.

arXiv comment10 pages, no figures, Includes updated references. To appear in Physical Review D

References in corpus (49)

• 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
• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• 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
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• New Exotic Meson and Baryon Resonances from Doubly-Heavy Hadronic Molecules
• Fine Structure of the QCD String Spectrum
• Towards exotic hidden-charm pentaquarks in QCD
• 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 Pentaquark Candidates in the Dynamical Diquark Picture
• The possible hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon
• A survey of heavy-heavy hadronic molecules
• Sigma_c Dbar and Lambda_c Dbar states in a chiral quark model
• Observation of new resonances decaying to $J/\psi K^{+}$ and $J/\psi \varphi$
• Observation of a near-threshold structure in the $K^{+}$ recoil-mass spectra in $e^{+}{e}^{-}\to K^{+}(D_s^{-}{D}^{\ast 0}+D_s^{\ast -}{D}^0)$
• A New Picture for the Formation and Decay of the Exotic $XYZ$ Mesons
• Pentaquark states in a diquark-triquark model
• Analysis of the $P_c(4312)$, $P_c(4440)$, $P_c(4457)$ and related hidden-charm pentaquark states with QCD sum rules
• The XYZ states revisited
• The Simple Spectrum of $c\bar{c}c\bar{c}$ States in the Dynamical Diquark Model
• Heavy-light diquark masses from QCD sum rules and constituent diquark models of tetraquarks
• Analysis of $P_c^{+}(4380)$ and $P_c^{+}(4450)$ as pentaquark states in the molecular picture with QCD sum rules
• Precision computation of hybrid static potentials in SU(3) lattice gauge theory
• Disentangling the hadronic molecule nature of the $P_c(4380)$ pentaquark-like structure
• Analysis of the $P_{cs}(4459)$ as the hidden-charm pentaquark state with QCD sum rules
• The Dynamical Diquark Model: First Numerical Results
• Hidden charm tetraquark states in a diquark model
• Spectrum of the Hidden-Bottom and the Hidden-Charm/Strange Exotics in the Dynamical Diquark Model
• Mass spectrum of the hidden-charm pentaquarks in the compact diquark model
• Investigation of $P_{cs}(4459{)}^0$ pentaquark via its strong decay to $\Lambda J/\Psi$
• Spectroscopy of Exotic Hadrons Formed from Dynamical Diquarks
• Hidden charm pentaquark states in a diquark model
• The Spectrum of $P$-Wave Hidden-Charm Exotic Mesons in the Diquark Model
• The Dynamical Diquark Model: Fine Structure and Isospin
• Properties of $P_c(4312)$ pentaquark and its bottom partner
• Radiative Transitions of Charmoniumlike Exotics in the Dynamical Diquark Model
• Insights into the nature of the $P_{cs}(4459)$
• Inclusive production of the $P_c$ resonances in $p\overline{p}$ collisions
• Spectrum of Hidden-Charm, Open-Strange Exotics in the Dynamical Diquark Model

Cited by in corpus (12)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Surveying the mass spectra and the electromagnetic properties of the ${\Xi }_c^{(\prime ,\ast )}{D}^{(\ast )}$ molecular pentaquarks
• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• Higher molecular $P_{\psi s}^{\Lambda /\Sigma }$ pentaquarks arising from the ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}_1/{\Xi }_c^{(\prime ,\ast )}{\bar{D}}_2^{\ast }$ interactions
• Hidden-charm pentaquark states in a mass splitting model
• Evidence supporting the existence of $P_c(4380{)}^{\pm }$ from the recent measurements of $B_s\to J/\psi p\bar{p}$
• Exotic Hadrons from Scattering in the Diabatic Dynamical Diquark Model
• Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
• Unravelling Pentaquarks with Born--Oppenheimer effective theory
• Doubly charmed hexaquarks in the diquark picture
• The Production of Singly Charmed Pentaquark $\bar{c}qqqq$ from Bottom Baryon
• DeepQuark: A Deep-Neural-Network Approach to Multiquark Bound States