Hidden charm pentaquark states in a diquark model

Abstract

The mass spectrum of hidden charm pentaquark states composed of two diquarks and an antiquark are calculated by use of an effective Hamiltonian which includes explicitly the spin, color, and flavor dependent interactions. The results show that the $P_c(4312{)}^{+}$ and $P_c(4440{)}^{+}$ states could be explained as hidden charm pentaquark states with isospin and spin-parity $I{J}^P=1/2\left(3/2^{-}\right)$, the $P_c(4457{)}^{+}$ state could be explained as a hidden charm pentaquark state with $I{J}^P=1/2\left(5/2^{-}\right)$, and the $P_{cs}(4459{)}^{+}$ state could be explained as a hidden charm pentaquark state with $I{J}^P=0\left(1/2^{-}\right)$ or $0\left(3/2^{-}\right)$. Predications for the masses of other possible pentaquark states are also given, and the possible decay channels of these hidden charm pentaquark states are discussed.

9 pages

References in corpus (14)

• Multiquark Resonances
• Pentaquark and Tetraquark states
• Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
• A Discussion on Triangle Singularities in the ${\Lambda }_b\to J/\psi K^{-}p$ Reaction
• Anatomy of the newly observed hidden-charm pentaquark states: $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$
• 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
• A Theory of X and Z Multiquark Resonances
• The Dynamical Diquark Model: First Numerical Results
• Hidden charm tetraquark states in a diquark model
• Heavy quark symmetry and weak decays of the $b$-baryons in pentaquarks with a $c\bar{c}$ component
• Spectroscopy of Exotic Hadrons Formed from Dynamical Diquarks
• Heavy pentaquark states and a novel color structure
• $d^{\ast }(2380)$ and its partners in a diquark model

Cited by in corpus (7)

• Heavy flavor molecular states with strangeness
• Unveiling the Structure of Hidden-Bottom Strange Pentaquarks via Magnetic Moments
• On the possibility of testing the two-peak structure of the LHCb hidden-charm strange pentaquark $P_{cs}(4459{)}^0$ in near-threshold antikaon-induced charmonium production on protons and nuclei
• Unravelling Pentaquarks with Born--Oppenheimer effective theory
• Production mechanism of hidden-charm pentaquark states $P_{c\bar{c}s}$ with strangeness $S=-1$
• Radiative decay and axial-vector decay behaviors of octet pentaquark states
• Exotic Heavy Hadrons