Doubly-charmed pentaquark states in a mass splitting model

Abstract

Concentrating on the mass differences relative to $P_{\psi }^N(4312{)}^{+}$, we systematically investigate the spectra of doubly-charmed pentaquark states in the compact $ccqq\bar{q}$ ($q=u,d,s$) configuration. The assumption that the observed $P_{\psi }^N(4312{)}^{+}$ is a compact hidden-charm pentaquark with $I(J^P)=\frac{1}{2}({\frac{3}{2}}^{-})$ is adopted. We also study the properties of strong decays within a simple rearrangement scheme. The results indicate that the $I(J^P)=\frac{1}{2}({\frac{1}{2}}^{-})$ $ccnn\bar{n}$ with $I_{nn}=0$ where $n$ denotes $u$ or $d$ quark, $I(J^P)=0({\frac{1}{2}}^{-})$ $ccnn\bar{s}$, and $I(J^P)=0({\frac{1}{2}}^{-})$ $ccns\bar{n}$ ground states should be stable.

References in corpus (41)

• Pentaquark and Tetraquark states
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• An updated review of the new hadron states
• Exotics: Heavy Pentaquarks and Tetraquarks
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Observation of an exotic narrow doubly charmed tetraquark
• Study of the doubly charmed tetraquark $T_{cc}^{+}$
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• A survey of heavy-heavy hadronic molecules
• Observation of a $J/\psi \Lambda$ resonance consistent with a strange pentaquark candidate in $B^{-}\to J/\psi \Lambda \bar{p}$ decays
• Evidence for a new structure in the $J/\psi p$ and $J/\psi \bar{p}$ systems in $B_s^0\to J/\psi p\bar{p}$ decays
• New structures in the J/$\psi$J/$\psi$ mass spectrum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Observation of an excess of di-charmonium events in the four-muon final state with the ATLAS detector
• First observation of a doubly charged tetraquark and its neutral partner
• $X(4140)$, $X(4270)$, $X(4500)$ and $X(4700)$ and their $cs\bar{c}\bar{s}$ tetraquark partners
• Heavy molecules and one-$\sigma /\omega$-exchange model
• Hidden-charm pentaquarks and their hidden-bottom and $B_c$-like partner states
• Amplitude analysis of $B^0\to {\overline{D}}^0{D}_s^{+}{\pi }^{-}$ and $B^{+}\to D^{-}{D}_s^{+}{\pi }^{+}$ decays
• Prediction of exotic doubly charmed baryons within chiral effective field theory
• Heavy pentaquark spectroscopy in the diquark model
• Novel approaches in Hadron Spectroscopy
• Observation of a resonant structure near the $D_s^{+}{D}_s^{-}$ threshold in the $B^{+}\to D_s^{+}{D}_s^{-}{K}^{+}$ decay
• Hidden Charm Pentaquark $P_c(4380)$ and Doubly Charmed Baryon ${\Xi }_{cc}^{\ast }(4380)$ as Hadronic Molecule States
• Doubly charmed molecular pentaquarks
• Spectrum of the molecular pentaquarks
• Electromagnetic properties of doubly heavy pentaquark states
• Surveying the mass spectra and the electromagnetic properties of the ${\Xi }_c^{(\prime ,\ast )}{D}^{(\ast )}$ molecular pentaquarks
• Probing the electromagnetic properties of the ${\Sigma }_c^{(\ast )}{D}^{(\ast )}$-type doubly charmed molecular pentaquarks
• Molecular ${\Omega }_{cc}$ , ${\Omega }_{bb}$ and ${\Omega }_{bc}$ states
• Hidden-charm pentaquark states in a mass splitting model
• New type of doubly charmed molecular pentaquarks containing most strange quarks: Mass spectra, radiative decays, and magnetic moments
• Doubly heavy tetraquark states in a mass splitting model
• $P_{cc}^N$ states in a unitarized coupled-channel approach
• Doubly charmed pentaquark states in QCD sum rules
• $QQqq\bar{q}$ Quark System, Compact Pentaquark, and Gauge/String Duality
• Exploring the mass spectrum and the electromagnetic properties of the possible ${\Xi }_{cc}{K}^{(\ast )}$ and ${\Xi }_{cc}{\bar{K}}^{(\ast )}$ molecules
• Doubly-Charm and Doubly-Bottom Pentaquark molecular States via the QCD sum rules
• Molecular states in $D_s^{(\ast )+}{\Xi }_c^{{(}^{\prime },\ast )}$ systems
• The doubly-charmed pentaquark in a quark model with a complete set of harmonic oscillator bases