Exploring the molecular scenario of $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$

Abstract

In the present work, we assign the newly observed $P_c(4312)$ as a $I(J^P)=\frac{1}{2}(\frac{1}{2}{)}^{-}$ molecular state composed of ${\Sigma }_c\bar{D}$, while $P_c(4440)$ and $P_c(4457)$ as ${\Sigma }_c{\bar{D}}^{\ast }$ molecular states with $I(J^P)=\frac{1}{2}(\frac{1}{2}{)}^{-}$ and $\frac{1}{2}(\frac{3}{2}{)}^{-}$, respectively. In this molecular scenario, we investigate the $P_c\to J/\psi p$ process of these three states and further predict the ratios of the $\mathcal{B}(P_c\to J/\psi p)$ and those of $\mathcal{B}({\Lambda }_b\to P_{c}K)$ between these three states, which could serve as a crucial test of the present molecular scenario.

6 pages, 5 figures

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• f0(980) meson as a K bar K molecule in a phenomenological Lagrangian approach
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Cited by in corpus (99)

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• Analysis of the $P_c(4312)$, $P_c(4440)$, $P_c(4457)$ and related hidden-charm pentaquark states with QCD sum rules
• Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory
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• $X_0(2866)$ as a $D^{\ast }{\bar{K}}^{\ast }$ molecular state
• $P_c(4457{)}^{+}$, $P_c(4440{)}^{+}$, and $P_c(4312{)}^{+}$: molecules or compact pentaquarks?
• Interpretation of the LHCb Pc(4312) Signal
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• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
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• The magnetic moment of $P_c(4312)$ as a $\bar{D}{\Sigma }_c$ molecular state
• Excited $K$ meson, $K_c(4180)$, with hidden charm as a $D\bar{D}K$ bound state
• Pion-induced production of hidden-charm pentaquarks $P_c(4312),P_c(4440)$, and $P_c(4457)$
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• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
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