Resonances in heavy meson - heavy baryon coupled-channel interactions

Abstract

The interactions of ${\bar{D}}^{(\ast )}{\Lambda }_c-{\bar{D}}^{(\ast )}{\Sigma }_c^{(\ast )}$ are studied within the framework of a dynamical coupled-channel approach. A series of bound states and resonances with different spin and parity are dynamically generated in the hidden charm sector. Four $S$-wave bound states are found in the mass range of 4.3 to 4.5 GeV, close to the pentaquark states observed by LHCb. Two of the states have a spin parity of $J^P=1/2^{-}$ and the other two have $J^P=3/2^{-}$. In addition, several resonances with different spin and parity in higher partial waves are predicted.

References in corpus (10)

• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
• 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
• Analytic properties of the scattering amplitude and resonances parameters in a meson exchange model
• Interpretation of the LHCb $P_c$ States as Hadronic Molecules and Hints of a Narrow $P_c(4380)$
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Interaction of vector mesons with baryons and nuclei
• 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
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles

Cited by in corpus (7)

• Emergence of molecular-type characteristic spectrum of hidden-charm pentaquark with strangeness embodied in the $P_{\psi s}^{\Lambda }(4338)$ and $P_{cs}(4459)$
• Light baryon resonances from a coupled-channel study including $\mathbf{K\Sigma }$ photoproduction
• Fully-charm and -bottom pentaquarks in a Lattice-QCD inspired quark model
• Molecular ${\Omega }_{cc}$ , ${\Omega }_{bb}$ and ${\Omega }_{bc}$ states
• $P_{cc}^N$ states in a unitarized coupled-channel approach
• The reaction $\pi N\to \omega N$ in a dynamical coupled-channel approach
• Molecular pentaquark states with open charm and bottom flavors