Strong decay patterns of the hidden-charm pentaquark states $P_c(4380)$ and $P_c(4450)$

Abstract

With the heavy quark symmetry and spin rearrangement scheme, we study the strong decay behavior of the hidden-charm pentaquark states with $J^P={\frac{3}{2}}^{\pm },{\frac{5}{2}}^{\pm }$ assuming they are molecular candidates composed of ${\bar{D}}^{(\ast )}$ and ${\Sigma }_c^{(\ast )}$. We obtain several typical ratios of the partial decay widths of the hidden-charm pentaquarks. For the three S-wave $(\bar{D}{\Sigma }_c^{\ast })$, $({\bar{D}}^{\ast }{\Sigma }_c)$ and $({\bar{D}}^{\ast }{\Sigma }_c^{\ast })$ molecular pentaquarks with $J^P={3/2}^{-}$, we have obtained the ratio of their $J/\psi N$ decay widths: $\Gamma \left[(\bar{D}{\Sigma }_c^{\ast })\right]:\Gamma \left[({\bar{D}}^{\ast }{\Sigma }_c)\right]:\Gamma \left[({\bar{D}}^{\ast }{\Sigma }_c^{\ast })\right]=2.7:1.0:5.4$, which may be useful to further test the possible molecular assignment of the $P_c$ states.

9 pages

References in corpus (3)

• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Strong decays of the $XYZ$ states
• Exotic Four Quark Matter: $Z_1(4475)$

Cited by in corpus (20)

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• Coupled channel analysis of molecule picture of $P_c(4380)$
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• Nucleon Resonances with Hidden Charm in $\gamma p$ reactions
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• Nucleon-$J/\psi$ and nucleon-${\eta }_c$ scattering in $P_c$ pentaquark channels from LQCD
• Decay behaviors of possible ${\Lambda }_{c\bar{c}}$ states in hadronic molecule pictures
• Production of $P_{cs}(4459)$ from ${\Xi }_b$ decay
• Hidden Charm Pentaquark $P_c(4380)$ and Doubly Charmed Baryon ${\Xi }_{cc}^{\ast }(4380)$ as Hadronic Molecule States
• Strong Decay of $P_c(4380)$ Pentaquark in a Molecular Picture
• Electromagnetic multipole moments of the $P_c^{+}(4380)$ pentaquark in light-cone QCD
• Possible Molecular Pentaquark States with Different Spin and Quark Configurations
• Resonances in heavy meson - heavy baryon coupled-channel interactions
• Revisiting hidden-charm pentaquarks from QCD sum rules
• Production of pentaquarks in $pA$-collisions
• The axial charges of the hidden-charm pentaquark states