Xi and Omega baryons in the Skyrme model

Abstract

The mass spectrum and magnetic moments of Ξand Ωbaryon resonances are investigated in the bound state approach of the Skyrme model. The empirical hyperon spectrum shows that several hyperon resonances share a pattern of (approximately) equal mass spacings between the states of same spin but of opposite parity. It is found that this pattern can be explained mostly by the energy difference between the P-wave and S-wave kaons bound to the soliton. Although one cannot exclude the possibility that these states can be described as pion-hyperon resonances, the present approach predicts that Ξ(1620) and Ξ(1690) have J^P = 12^-, while Ξ(1950) has J^P = 12^+. The differences with the quark model predictions for the Ξand Ωbaryon spectrum are pointed out. Several relations for the masses and magnetic moments of those resonances are also obtained.

arXiv comment17 pages, REVTeX, to be published in Phys. Rev. D

References in corpus (42)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Spectrum of the Nucleons and the Strange Hyperons and Chiral Dynamics
• Unified description of light- and strange-baryon spectra
• Quark mass dependence of s-wave baryon resonances
• Algebraic Models of Hadron Structure II. Strange Baryons
• Masses of the 70- Baryons in Large Nc QCD
• Excited hadrons on the lattice: Baryons
• On the spin, parity and nature of the $\Xi (1620)$ resonance
• Constituent quark model study of light- and strange-baryon spectra
• Analysis of the [56,2^+] Baryon Masses in the 1/Nc Expansion
• Is Theta+(1540) a Kaon--Skyrmion Resonance?
• Baryons Containing a Heavy Quark as Solitons
• The $[56,4^{+}]$ baryons in the $1/N_c$ expansion
• Predictions for Decays of Radially Excited Baryons
• Heavy Quark Symmetry and the Skyrme Model
• Photoproduction of Xi off nucleons
• Masses of $[70,{\ell }^{+}]$ Baryons in the $1/N_c$ Expansion
• Predictive Ability of QCD Sum Rules for Excited Baryons
• S_3 and the L=1 Baryons in the Quark Model and the Chiral Quark Model
• Lambda(1405) in the Bound State Soliton Model
• Measurement of the Spin of the Omega^- Hyperon at BABAR
• Heavy-Quark Symmetry and Skyrmions
• Excited baryons from Bayesian priors and overlap fermions
• On Hyperfine Splittings of Strange Baryons in the Skyrme Model
• Exclusive Photoproduction of the Cascade (Xi) Hyperons
• Evidence for an Excited Hyperon State in pp -> p K^+ Y^{0*}
• Light Baryon Resonances: Restrictions and Perspectives
• Energy levels of the soliton--heavy-meson bound states
• Properties of baryon anti-decuplet
• Excited states of heavy baryons in the Skyrme model
• Heavy Quark Solitons
• Magnetic Moments of Baryons with a Single Heavy Quark
• Measurement of the branching ratios of the decays Xi0 --> Sigma+ e- nubar and anti-Xi0 --> anti-Sigma+ e+ nu
• Exotic Baryons and Monopole Excitations in a Chiral Soliton Model
• Baryon masses in large Nc chiral perturbation theory
• Magnetic moments of heavy baryons in the Skyrme model
• Photoproduction of the doubly-strange Xi Hyperons
• Production of xi resonances in sigma induced reactions at 345 GeV/c
• Photoproduction of pentaquark cascades from nucleons
• Kaon-Soliton Bound State Approach to the Pentaquark States
• The Anharmonic Correction in the Soliton Model for the Hyperons

Cited by in corpus (59)

• Measurement of the Sigma pi photoproduction line shapes near the Lambda(1405)
• Odd Parity Light Baryon Resonances
• Strangeness -2 and -3 Baryons in a Constituent Quark Model
• On the pentaquark candidates $P_c^{+}(4380)$ and $P_c^{+}(4450)$ within the soliton picture of baryons
• Observation of an excited ${\Omega }^{-}$ baryon
• Theoretical study of the Xi(1620) and Xi(1690) resonances in Xi_c -> pi^+ MB decays
• $\Xi$ baryon strong decays in a chiral quark model
• $\Omega$ baryon spectrum and their decays in a constituent quark model
• Observation of $\Xi (1620{)}^0$ and evidence for $\Xi (1690{)}^0$ in ${\Xi }_c^{+}\to {\Xi }^{-}{\pi }^{+}{\pi }^{+}$ decays
• The $\Omega (2012)$ as a hadronic molecule
• Coupled channels dynamics in the generation of the $\Omega (2012)$ resonance
• A possible interpretation of the newly observed $\Omega (2012)$ state
• Interpretation of the newly discovered $\Omega$(2012)
• Strong decay modes $\bar{K}\Xi$ and $\bar{K}\Xi \pi$ of the $\Omega (2012)$ in the $\bar{K}\Xi (1530)$ and $\eta \Omega$ molecular scenario
• Molecular picture for the $\Omega (2012)$ revisited
• $\bar{K}+N\to K+\Xi$ reaction and $S=-1$ hyperon resonances
• Mixing of the low-lying three- and five-quark $\Omega$ states with negative parity
• Hadron spectroscopy from strangeness to charm and beauty
• $\Omega (2012)$ through the looking glass of flavour SU(3)
• Nature of the $\Omega$(2012) through its strong decays
• Magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet baryons using effective quark masses in chiral constituent quark model
• Spectroscopic Investigation of Light Strange S=-1 $\Lambda$, $\Sigma$ and S=-2 $\Xi$ Baryons
• Toward discovering the excited $\Omega$ baryons through nonleptonic weak decays of ${\Omega }_c$
• Spectroscopic Study of Strangeness=-3 ${\Omega }^{-}$ Baryon
• $\Sigma$ Resonances from $K^{-}N\to \pi \Lambda$ reactions with the center of mass energy from 1550 to 1676 MeV
• Newly observed $\Omega (2012)$ state and strong decays of the low-lying $\Omega$ excitations
• Role of high-spin hyperon resonances in the reaction of $\gamma p\to K^{+}{K}^{+}{\Xi }^{-}$
• $\Xi (1690)$ as a $\bar{K}\Sigma$ molecular state
• Spectrum of low-lying $s^{3}Q\bar{Q}$ configurations with negative parity
• Strong decays of the hadronic molecule ${\Omega }^{\ast }(2012)$
• Further understanding the nature of $\Omega (2012)$ within a chiral quark model
• Reanalysis of the newly observed ${\Omega }^{\ast }$ state in hadronic molecule model
• Understanding the nature of $\Omega (2012)$ in a coupled-channel approach
• Analysis of $\Omega (2012)$ as a molecule in the chiral quark model
• The ${\Xi }^{\ast }\bar{K}$ and $\Omega \eta$ interaction within a chiral unitary approach
• Transition magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet to $J^P={\frac{1}{2}}^{+}$ octet baryons in the chiral constituent quark model
• 70 Years of Hyperon Spectroscopy: A review of strange $\Xi$, $\Omega$ baryons, and the spectrum of charmed and bottom baryons
• Study ${\Xi }_c^{+}\to \Lambda {\bar{K}}^0{\pi }^{+}$ and search for the low-lying baryons $\Xi (1/2^{-})$ and $\Sigma (1/2^{-})$
• Model-independent determination of the parity of $\Xi$ hyperons
• Magnetic moments of JP = 3/2+ decuplet baryons using statistical model
• Analysis of the structure of $\Xi (1690)$ through its decays
• Properties of JP = 1/2+ baryon octets at low energy
• Model-independent aspects of the reaction $\bar{K}+N\to K+\Xi$
• Photo-production of lowest ${\Sigma }_{1/2^{-}}^{\ast }$ state within the Regge-effective Lagrangian approach
• Evidence for Two Excited ${\Omega }^{-}$ Hyperons
• Chiral partner structure of heavy baryons from the bound state approach with hidden local symmetry
• Structure of the ${\Omega }^{-}(2012)$ with Hamiltonian Effective Field Theory
• Baryons in the Field Correlator Method: Effects of the Running Strong Coupling
• $\Xi (1690{)}^{-}$ production in the $K^{-}p\to K^{+}{K}^{-}\Lambda$ reaction process near threshold
• Observation of the $\Omega$(2012) baryon at the LHC
• Hyperons analogous to the Λ(1405)
• $\Xi (1690{)}^{-}$ resonance production via $K^{-}p\to K^{+}{K}^{-}\Lambda$
• Role of $\Xi (1690)$ in the $J/\psi \to {\Xi }^0\bar{\Lambda }{K}^0$ reaction
• Monte Carlo Simulation-Based Partial Wave Analysis of ${\Xi }_c^{+}\to {\Xi }^{-}{\pi }^{+}{\pi }^{+}$ Decay
• SU(3) flavor symmetry breaking in large $N_c$ excited hyperons
• Production and parity determination of $\Xi$ baryons
• Penta-quark states with hidden charm and beauty
• Strong decays of the $\Xi (1620)$ as a $\Lambda \bar{K}$ and $\Sigma \bar{K}$ molecule
• Penta-quark States with Strangeness, Hidden Charm and Beauty