Strong decays of the newly $P_{cs}(4459)$ as a strange hidden-charm ${\Xi }_c{\bar{D}}^{\ast }$ molecule

Abstract

In our former work [arXiv:2011.07214], the $P_{cs}(4459)$ observed by the LHCb Collaboration can be explained as a coupled strange hidden-charm ${\Xi }_c{\bar{D}}^{\ast }/{\Xi }_c^{\ast }\bar{D}/{\Xi }_c^{\prime }{\bar{D}}^{\ast }/{\Xi }_c^{\ast }{\bar{D}}^{\ast }$ molecule with $I(J^P)=0(3/2^{-})$. Here, we further discuss the two-body strong decay behaviors of the $P_{cs}(4459)$ in the meson-baryon molecular scenario by input the former obtained bound solutions. Our results support the $P_{cs}(4459)$ as the strange hidden-charm ${\Xi }_c{\bar{D}}^{\ast }$ molecule with $I(J^P)=0(3/2^{-})$. The relative decay ratio between ${\Lambda }_c{D}_s^{\ast }$ and $J/\psi \Lambda$ is around 10, where the partial decay width for the ${\Lambda }_c{D}_s^{\ast }$ channel is around 0.6 to 2.0 MeV.

6 pages, 5 figures, Accepted by the EPJC

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Cited by in corpus (28)

• An updated review of the new hadron states
• Molecular nature of $P_{cs}(4459)$ and its heavy quark spin partners
• Magnetic moments and transition magnetic moments of $P_c$ and $P_{cs}$ states
• A new look at the $P_{cs}$ states from a molecular perspective
• Magnetic moments of the hidden-charm strange pentaquark states
• Investigation of magnetic moment of $P_{cs}(4338)$ and $P_{cs}(4459)$ pentaquark states
• Investigation of $P_{cs}(4459{)}^0$ pentaquark via its strong decay to $\Lambda J/\Psi$
• Investigation of hidden-charm pentaquarks with strangeness $S=-1$
• Analysis of the hidden-charm pentaquark molecular states with strangeness and without strangeness via the QCD sum rules
• Mass behavior of hidden-charm pentaquarks with open-strange inspired by these established $P_c$ molecular states
• Exploring the electromagnetic properties of the ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}_s^{\ast }$ and ${\Omega }_c^{(\ast )}{\bar{D}}_s^{\ast }$ molecular states
• Spectrum of the molecular pentaquarks
• Compact hidden charm pentaquark states and QCD isomers
• Surveying the mass spectra and the electromagnetic properties of the ${\Xi }_c^{(\prime ,\ast )}{D}^{(\ast )}$ molecular pentaquarks
• Fully-charm and -bottom pentaquarks in a Lattice-QCD inspired quark model
• Probing the electromagnetic properties of the ${\Sigma }_c^{(\ast )}{D}^{(\ast )}$-type doubly charmed molecular pentaquarks
• Higher molecular $P_{\psi s}^{\Lambda /\Sigma }$ pentaquarks arising from the ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}_1/{\Xi }_c^{(\prime ,\ast )}{\bar{D}}_2^{\ast }$ interactions
• Production of hidden-charm strange pentaquarks $P_{cs}$ from the $K^{-}p\to J/\psi \Lambda$ reaction
• Unveiling the Structure of Hidden-Bottom Strange Pentaquarks via Magnetic Moments
• Masses and magnetic moments of exotic fully heavy pentaquarks
• 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
• Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
• Regarding the possibility to observe the LHCb hidden-charm strange pentaquark $P_{cs}(4459{)}^0$ in antikaon-induced $J/\psi$ meson production on protons and nuclei near the $J/\psi$$\Lambda$ production threshold
• Spectroscopic Properties of Double-Strangeness Molecular Tetraquarks
• Role of the short-range dynamics in the formation of $D^{(\ast )}{\bar{D}}^{(\ast )}/B^{(\ast )}{\bar{B}}^{(\ast )}$ hadronic molecules
• Radiative decay and axial-vector decay behaviors of octet pentaquark states
• Analysis of the hidden-charm pentaquark candidates in the $J/\psi \Lambda$ mass spectrum via the QCD sum rules
• Role of the short-range dynamics in simultaneous interpretation of $P_{cs}$ pentaqurks via ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ molecules