Light Baryon Resonances: Restrictions and Perspectives

Abstract

The problem of nucleon resonances N' with masses below the Delta is considered. We derive bounds for the properties of such states. Some of these are new, while others improve upon existing limits. We discuss the nature of N' states, and their unitary partners, assuming their existence can be verified.

11 pages, 11 figure

References in corpus (4)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Observation of a baryon resonance with positive strangeness in K+ collisions with Xe nuclei
• Search for Narrow Nucleon Resonances below Pion Threshold in the H(e,e'pi^+)X and D(e,e'p)X Reactions

Cited by in corpus (25)

• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• K+ nucleon scattering and exotic S=+1 Baryons
• Nonstrange and other unitarity partners of the exotic Theta+ baryon
• Xi and Omega baryons in the Skyrme model
• On the cross section ratio sigma_n/sigma_p in eta photoproduction
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• Photoproduction of eta meson within a coupled-channels K-matrix approach
• P-wave excited baryons from pion- and photo-induced hyperon production
• Cascade production in the reactions gamma p --> K+ K+ (X) and gamma p --> K^+ K^+ pi- (X)
• Study the exotic ${\Theta }^{+}$ with polarized photon beams
• Evidence for an Excited Hyperon State in pp -> p K^+ Y^{0*}
• The associated photoproduction of K+ meson off proton within a coupled-channels K-matrix approach
• Review of the low-lying excited baryons ${\Sigma }^{\ast }(1/2^{-})$
• Towards the Minimal Spectrum of Excited Baryons
• Simple Classification of Light Baryons
• Search for Higher Flavor Multiplets in Partial Wave Analyses
• Broken SU(3) antidecuplet for ${\Theta }^{+}$ and ${\Xi }_{3/2}$
• Effect of exotic S=+1 resonances on $K_L^{0}p$ scattering data
• SU(3) systematization of baryons
• On Lowest Lying ${\frac{1}{2}}^{-}$ Octet Baryons
• Search for exotic baryons in double radiative capture on pionic hydrogen
• Present status of the nonstrange and other flavor partners of the exotic Theta+ baryon
• Indication of an excited hyperon state in pp collisions with ANKE at COSY-Juelich
• Strong decays of the $\Xi (1620)$ as a $\Lambda \bar{K}$ and $\Sigma \bar{K}$ molecule
• Supernarrow Dibaryons