${\Xi }_c$ and ${\Xi }_b$ excited states within a ${\mathrm{SU}(6)}_{\mathrm{lsf}}\times$HQSS model

Abstract

We study odd parity $J=1/2$ and $J=3/2$ ${\Xi }_c$ resonances using a unitarized coupled-channel framework based on a ${\mathrm{SU}(6)}_{\mathrm{lsf}}\times$HQSS-extended Weinberg-Tomozawa baryon-meson interaction, while paying a special attention to the renormalization procedure. We predict a large molecular ${\Lambda }_c\bar{K}$ component for the ${\Xi }_c(2790)$ with a dominant $0^{-}$ light-degree-of-freedom spin configuration. We discuss the differences between the $3/2^{-}$ ${\Lambda }_c(2625)$ and ${\Xi }_c(2815)$ states, and conclude that they cannot be SU(3) siblings, whereas we predict the existence of other ${\Xi }_c-$states, two of them related to the two-pole structure of the ${\Lambda }_c(2595)$. It is of particular interest a pair of $J=1/2$ and $J=3/2$ poles, which form a HQSS doublet and that we tentatively assign to the ${\Xi }_c(2930)$ and ${\Xi }_c(2970)$, respectively. Within this picture, the ${\Xi }_c(2930)$ would be part of a SU(3) sextet, containing either the ${\Omega }_c(3090)$ or the ${\Omega }_c(3119)$, and that would be completed by the ${\Sigma }_c(2800)$. Moreover, we identify a $J=1/2$ sextet with the ${\Xi }_b(6227)$ state and the recently discovered ${\Sigma }_b(6097)$. Assuming the equal spacing rule and to complete this multiplet, we predict the existence of a $J=1/2$ ${\Omega }_b$ odd parity state, with a mass of 6360 MeV and that should be seen in the ${\Xi }_b\bar{K}$ channel.

arXiv comment13 pages, 5 figures, 4 tables

References in corpus (39)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Chiral Dynamics of the Two Λ(1405) States
• A review of the open charm and open bottom systems
• Baryon spectroscopy
• The nature of the Lambda(1405) resonance in chiral dynamics
• Progress Toward Understanding Baryon Resonances
• Spectrum of heavy baryons in the quark model
• Effective Kbar N interaction based on chiral SU(3) dynamics
• Quark mass dependence of s-wave baryon resonances
• $S=-1$ Meson-Baryon Unitarized Coupled Channel Chiral Perturbation Theory and the $S_{01}-$ $\Lambda$(1405) and $-\Lambda$(1670) Resonances
• Coupled-channel study of crypto-exotic baryons with charm
• Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings
• The $S_{11}-N$(1535) and $-N$(1650) Resonances in Meson-Baryon Unitarized Coupled Channel Chiral Perturbation Theory
• The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry
• Charmed and strange baryon resonances with heavy-quark spin symmetry
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Odd Parity Light Baryon Resonances
• Odd parity bottom-flavored baryon resonances
• Dynamically generated open charmed baryons beyond the zero range approximation
• Molecular ${\Omega }_c$ states generated from coupled meson-baryon channels
• Dynamically generated $J^P=1/2^{-}(3/2^{-})$ singly charmed and bottom heavy baryons
• Antikaon-nucleon interaction and Lambda(1405) in chiral SU(3) dynamics
• Exotic dynamically generated baryons with negative charm quantum number
• How the X(5568) challenges our understanding of QCD
• D-wave baryon resonances with charm from coupled-channel dynamics
• A meson-baryon molecular interpretation for some ${\Omega }_c$ excited baryons
• Searching for possible ${\Omega }_c-$like molecular states from ${\Xi }_c^{\ast }\bar{K}/{\Xi }_c{\bar{K}}^{\ast }/{\Xi }_c^{\prime }{\bar{K}}^{\ast }$ interaction
• Description of the ${\Xi }_c$ and ${\Xi }_b$ states as molecular states
• Low-lying even parity meson resonances and spin-flavor symmetry
• Can $X(5568)$ be described as a $B_s\pi$, $B\bar{K}$ resonant state?
• Compositeness of the strange, charm and beauty odd parity $\Lambda$ states
• Charming mesons with baryons and nuclei
• Large Nc Weinberg-Tomozawa interaction and negative parity s--wave baryon resonances
• Strong decays of the ${\Xi }_b(6227)$ as a ${\Sigma }_b\bar{K}$ molecule
• ${\Omega }_c$ excited states within a ${\mathrm{SU}(6)}_{\mathrm{lsf}}\times$HQSS model
• Molecular ${\Omega }_b$ states
• Possible open-charmed pentaquark molecule ${\Omega }_c(3188)$ --- the $D\Xi$ bound state --- in the Bethe-Salpeter formalism

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• Viable Wormhole Structures and Energy Conditions in f(Q,T) Theory
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