Baryon Resonances

Abstract

In this talk I show recent results on how many excited baryon resonances appear as systems of one meson and one baryon, or two mesons and one baryon, with the mesons being either pseudoscalar or vectors. Connection with experiment is made including a discussion on old predictions and recent results for the photoproduction of the $\Lambda (1405)$ resonance, as well as the prediction of one $1/2^{+}$ baryon state around 1920 MeV which might have been seen in the $\gamma p\to K^{+}\Lambda$ reaction.

Talk given at the 10th International Conference on Hypernuclear and Strange Particle Physics, Tokai, Japan, Sptember 2009

References in corpus (11)

• K^- p scattering length from scattering experiments
• Hidden gauge formalism for the radiative decays of axial-vector mesons
• On the Strangeness -1 S-wave Meson-Baryon Scattering
• Photoproduction of Lambda(1405) and Sigma^{0}(1385) on the proton at E_γ= 1.5-2.4 GeV
• Three body resonances in two meson-one baryon systems
• Kaonic production of Lambda(1405) off deuteron target in chiral dynamics
• The $N^{\ast }(1710)$ as a resonance in the $\pi \pi N$ system
• anti-K anti-K N molecule state in three-body calculation
• An explanation of the ${\Delta }_{5/2^{-}}(1930)$ as a $\rho \Delta$ bound state
• Meson loops in the $f_0(980)$ and $a_0(980)$ radiative decays into $\rho$, $\omega$
• Meson-baryon threshold effects in the light-quark baryon spectrum

Cited by in corpus (4)

• Dynamically generated $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances in the hidden charm sector around 4.3 GeV
• Role of vector and pseudoscalar mesons in understanding $1/2^{-}$ $N^{\ast }$ and $\Delta$ resonances
• Plausible explanation of the ${\Delta }_{5/2^{+}}(2000)$ puzzle
• Selected topics on Hadrons in Nuclei