Effects of a spin-flavour dependent interaction on the baryon mass spectrum

Abstract

The effective quark interaction in a relativistically covariant constituent quark model based on the Salpeter equation is supplemented by an extra phenomenological flavour dependent force in order to account for some discrepancies mainly in the description of excited negative parity Delta resonances. Simultaneously an improved description of some other features of the light-flavoured baryon mass spectrum and of some electromagnetic form factors is obtained.

15 pages, 13 figures, submitted to Eur.Phys.J. A

References in corpus (15)

• Excited state baryon spectroscopy from lattice QCD
• Origin of resonances in the chiral unitary approach
• Measurement of the proton electric to magnetic form factor ratio from \vec ^1H(\vec e, e'p)
• Low Q^2 measurements of the proton form factor ratio $m{u}_p{G}_E/G_M$
• Quark-Model Identification of Baryon Ground and Resonant States
• Evidence for a parity doublet Delta(1920)P_{33} and Delta(1940)D_{33}$ from γp\to pπ^0η
• P-wave excited baryons from pion- and photo-induced hyperon production
• Electromagnetic nucleon form factors in instant and point form
• Nucleon resonances in the fourth resonance region
• Extraction of the Axial Nucleon Form Factor from Neutrino Experiments on Deuterium
• Structure of the Lambda(1405) baryon resonance from its large Nc behavior
• Static observables of relativistic three-fermion systems with instantaneous interactions
• Review of Baryon Spectroscopy in Lattice QCD
• Precision Measurements of the Proton Elastic Form Factor Ratio
• Relativistic Quark-Model Results for Baryon Ground and Resonant States

Cited by in corpus (18)

• Baryons as relativistic three-quark bound states
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Photocouplings at the Pole from Pion Photoproduction
• Light Baryon Spectroscopy
• Study of $\eta$ and ${\eta }^{\prime }$ photoproduction at MAMI
• The impact of ${\mathbf{K}}^{+}\mathbf{\Lambda }$ photoproduction on the resonance spectrum
• Light baryon resonances from a coupled-channel study including $\mathbf{K\Sigma }$ photoproduction
• Strong evidence for nucleon resonances near 1900\,MeV
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• $\bar{K}+N\to K+\Xi$ reaction and $S=-1$ hyperon resonances
• Towards the Minimal Spectrum of Excited Baryons
• Effects of a spin-flavour dependent interaction on light-flavoured baryon helicity amplitudes
• Coupled-channel analysis of pion- and eta-electroproduction with the Jülich-Bonn-Washington model
• The complete experiment problem of pseudoscalar meson photoproduction in a truncated partial wave analysis
• Truncated Partial-Wave Analysis for $\eta$-photoproduction observables via Bayesian Statistics
• Triply-heavy/strange baryons with Cornell potential on a quantum computer
• The lightest flavor--singlet qqq baryons as witnesses to color