Reanalysis of the Lowest-Mass Negative-Parity Baryon Resonances Using the Symmetric Quark Model

1968 ◽  
Vol 175 (5) ◽  
pp. 2024-2026 ◽  
Author(s):  
D. R. Divgi ◽  
O. W. Greenberg
Keyword(s):  
Quark Model ◽  
Negative Parity ◽  
Baryon Resonances

Non-Strange Baryon Resonances in the Isgur-Karl Model Including the N=3 Oscillator Shell

1994 ◽  
Vol 49 (7-8) ◽  
pp. 733-745
Author(s):  
Stefan Querbach ◽  
Martin Kretzschmar
Keyword(s):  
Constituent Quark Model ◽  
Negative Parity ◽  
Shift Analysis ◽  
Resonance Energies ◽  
Model Predictions ◽  
Excited Baryon ◽  
Oscillator Shell ◽  
Pion Nucleon ◽  
Configuration Mixing ◽  
Baryon Resonances

Abstract The nonrelativistic constituent quark model for excited baryon states in the version proposed by Isgur and Karl is extended toward higher energies by including all states containing up to three oscillator excitation quanta. At high energies baryon resonances with spins up to 9/2 become accessible. At all energies and in particular for lower spins strong configuration mixing is obtained. Model predictions are compared to the empirical resonance energies derived in the Karlsruhe-Helsinki pion nucleon phase shift analysis. A search is made for parameter sets that apply simultaneously to the positive parity and the negative parity states. Numerical results are presented and discussed in relation to experimental data and to other theoretical works.

THE CHIRAL QUARK MODEL AND BARYON PHENOMENOLOGY

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1785-1790 ◽  
Author(s):  
D. O. RISKA
Keyword(s):  
Quark Model ◽  
Form Factors ◽  
Axial Current ◽  
Chiral Quark Model ◽  
Pion Decay ◽  
Decay Widths ◽  
Nucleon Form Factors ◽  
Baryon Spectra ◽  
Baryon Resonances ◽  
Covariant Quark Model

The chiral quark model posits that pions couple to the axial current of constituent quarks. This chiral pion coupling governs the pion decays of baryon resonances and also implies pion and multipion interactions between the quarks. The qualitative features of this model for the description of pionic decay widths and baryon spectra are outlined. When the covariant quark model wave function for the nucleon is chosen so as to describe the empirical nucleon form factors the pion decay widths of the positive parity resonances are underpredicted. This indicates the presence of significant multiquark components in these resonances.

Baryon Resonances in a Constituent Quark Model

2000 ◽  
Vol 137 ◽  
pp. 169-188 ◽  
Author(s):  
Masaki Arima ◽  
Keiichi Masutani ◽  
Toru Sato
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Baryon Resonances

scholarly journals Decays of Baryon Resonances. I: Equivalence of an l-broken SU(6)W Model to a Quark Model

1978 ◽  
Vol 59 (1) ◽  
pp. 291-293 ◽  
Author(s):  
S. Ishida ◽  
M. Oda ◽  
J. Otokozawa
Keyword(s):  
Quark Model ◽  
Baryon Resonances

Higher Meson and Baryon Resonances in aSU(18)Quark Model

1966 ◽  
Vol 145 (4) ◽  
pp. 1269-1272 ◽  
Author(s):  
Asher Peres
Keyword(s):  
Quark Model ◽  
Baryon Resonances

Decays of Negative-Parity Baryons in a Quark Model

1968 ◽  
Vol 175 (5) ◽  
pp. 2027-2029 ◽  
Author(s):  
D. R. Divgi
Keyword(s):  
Quark Model ◽  
Negative Parity
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