A chiral quark model for meson electroproduction in the S11 partial wave

2011/01/31 by B. Golli, Bojan Golli, S. Širca +1 · 18 citations
Physics and Astronomy · #Amplitude #Baryon #Bound state #Constituent quark #High-Energy Particle Collisions Research #Meson #Nuclear physics #Partial wave analysis #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Quark model #Quarkonium #Resonance (particle physics) #hep-ph #nucl-th

paper · pdf · doi:10.1140/epja/i2011-11061-0

published in The European Physical Journal A 47(5) (Springer Science+Business Media) · 10 pages, 13 figures

arxiv created 2011/04/14 · openalex publication_date 2011/05/01 · arxiv updated 2015/03/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We calculate the meson scattering and electro-production amplitudes in the S11 partial wave in a coupled-channel approach that incorporates quasi-bound quark-model states. Using the quark wave functions and the quark-meson interaction from the Cloudy Bag Model, we obtain a good overall agreement with the available experimental results for the partial widths of the N(1535) and the N(1650) resonances as well as for the pion, eta and kaon electro-production amplitudes. Our model is consistent with the N(1535) resonance being dominantly a genuine three-quark state rather than a quasi-bound state of mesons and baryons.

Citations

• Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction
• Baryon resonance analysis from MAID
• Unitary isobar model --MAID2007
• Chiral dynamics and the S11(1535) nucleon resonance
• Chiral constituent quark model study of the process γp → ηp ⋆
• ηproduction off the proton in a Regge-plus-chiral quark approach
• Dispersion relation constrained partial wave analysis ofπNelastic andπN→ηNscattering data: The baryon spectrum
• Review of Particle Physics
• Review of Particle Physics