Partial decay widths of $P_c(4312)$ as a $\bar{D}{\Sigma }_c$ molecular state

Abstract

In the present work, the partial decay widths of $P_c(4312)$ to ${\eta }_{c}p$ and $J/\psi p$ are investigated with the QCD sum rule method under the assumption that $P_c(4312)$ is a $\bar{D}{\Sigma }_c$ molecular state with $J^P={\frac{1}{2}}^{-}$. In the analysis, the pole residue of $P_c(4312)$, one of the input parameters for the calculations of the strong decay constants, is calculated first. With the numerical values of the strong decay constants, the partial decay widths to ${\eta }_{c}p$ and $J/\psi p$ are estimated to be $Γ(P_{c}(4312)\rightarrow η_{c} p)=5.54^{+0.75}_{-0.5}\mbox{MeV}$ and $Γ(P_{c}(4312)\rightarrow J/ψp)=1.67^{+0.92}_{-0.56}\mbox{MeV}$, respectively, which are compatible with the measured total width of $P_c(4312)$. The results suggest that it is reasonable to assign $P_c(4312)$ to be a $\bar{D}{\Sigma }_c$ molecular state with $J^P={\frac{1}{2}}^{-}$.

arXiv comment18 page,11 figures

References in corpus (55)

• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• 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
• Pentaquark and Tetraquark states
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• A review of the open charm and open bottom systems
• Identifying exotic hidden-charm pentaquarks
• How to reveal the exotic nature of the P_c(4450)
• The New Pentaquarks in the Diquark Model
• Towards exotic hidden-charm pentaquarks in QCD
• The Pentaquark Candidates in the Dynamical Diquark Picture
• Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
• Understanding the newly observed heavy pentaquark candidates
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• $\bar{D}{\Sigma }_c^{\ast }$ and ${\bar{D}}^{\ast }{\Sigma }_c$ interactions and the LHCb hidden-charmed pentaquarks
• Analysis of the $P_c(4380)$ and $P_c(4450)$ as pentaquark states in the diquark model with QCD sum rules
• Study of $P_c(4457)$, $P_c(4440)$, and $P_c(4312)$ in a quasipotential Bethe-Salpeter equation approach
• Heavy quark spin symmetric molecular states from ${\bar{D}}^{(\ast )}{\Sigma }_c^{(\ast )}$ and other coupled channels in the light of the recent LHCb pentaquarks
• Pentaquark states in a diquark-triquark model
• Possible interpretations of the $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$
• Exploring the molecular scenario of $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$
• Anatomy of the newly observed hidden-charm pentaquark states: $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• The hidden charm pentaquark states and ${\Sigma }_c{\bar{D}}^{(\ast )}$ interaction in chiral perturbation theory
• Lattice QCD and QCD Sum Rule determination of the decay constants of eta_c, J/psi and hc states
• 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
• Is pentaquark doublet a hadronic molecule?
• $P_c(4457{)}^{+}$, $P_c(4440{)}^{+}$, and $P_c(4312{)}^{+}$: molecules or compact pentaquarks?
• Analysis of $P_c^{+}(4380)$ and $P_c^{+}(4450)$ as pentaquark states in the molecular picture with QCD sum rules
• The masses of $P_c^{\ast }(4380)$ and $P_c^{\ast }(4450)$ in the quasi particle diquark model
• On the pentaquark candidates $P_c^{+}(4380)$ and $P_c^{+}(4450)$ within the soliton picture of baryons
• One pion exchange and the quantum numbers of the Pc(4440) and Pc(4457) pentaquarks
• Decays of $P_c$ into $J/\psi N$ and ${\eta }_{c}N$ with heavy quark spin symmetry
• 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
• Analysis of the doubly heavy baryon states and pentaquark states with QCD sum rules
• Cosmological constraints on alternative model to Chaplygin fluid revisited
• Hidden-charm molecular pentaquarks and their charm-strange partners
• QCD sum rule study of hidden-charm pentaquarks
• Some decay properties of hidden-charm pentaquarks as baryon-meson molecules
• $J/\psi ({\eta }_c)N$ and ${\rm Y}({\eta }_b)N$ cross sections
• Pentaquarks and resonances in the $pJ/\psi$ spectrum
• 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
• Heavy pentaquark spectroscopy in the diquark model
• Analysis of the ${\frac{3}{2}}^{\pm }$ pentaquark states in the diquark-diquark-antiquark model with QCD sum rules
• Hidden charm pentaquarks with color-octet substructure in QCD Sum Rules
• Strong decays of the $Y(4660)$ as a vector tetraquark state in solid quark-hadron duality
• 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
• Looking for the hidden-charm pentaquark resonances in $J/\psi p$ scattering
• Thermal QCD Sum Rules Study of Vector Charmonium and Bottomonium States
• Properties of nucleon in nuclear matter: once more
• Pentaquark Decay Width in QCD Sum Rules
• Phenomenological predictions for pentaquark masses from fits to baryon masses
• Investigate the pentaquark resonance in the $NK$ system

Cited by in corpus (15)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• 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
• $P_c(4312{)}^{+}$, $P_c(4380{)}^{+}$, and $P_c(4457{)}^{+}$ as double triangle cusps
• Strong decays of the newly $P_{cs}(4459)$ as a strange hidden-charm ${\Xi }_c{\bar{D}}^{\ast }$ molecule
• Production of $P_{cs}(4459)$ from ${\Xi }_b$ decay
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Hidden-charm pentaquark states through the current algebra: From their productions to decays
• The singly-charmed pentaquark molecular states via the QCD sum rules
• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• The hadronic coupling constants of the lowest hidden-charm pentaquark state with the QCD sum rules in rigorous quark-hadron duality
• Exotic Hadrons at LHCb
• Recoupling Mechanism for exotic mesons and baryons
• Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
• Strong decays of $P_{\psi }^N(4440{)}^{+}$ and $P_{\psi }^N(4457{)}^{+}$ within the Bethe-Salpeter framework
• Strong decays of the $P_c(4312)$ and its isospin cousin via the QCD sum rules