The hypercentral Constituent Quark Model (hCQM) has been employed to obtain the resonance masses of light, strange baryons starting from N to \(\varOmega \) . The model has linear potential with higher order correction terms with spin-orbit term to best possible predict the spectra of excited states. With these, the strong decays play a significant role towards the understanding of underlying properties for a given state. The pion decay channels have been dominantly observed in almost all the \(N^*\) states. However, there are other meson exchange resulting in the decay of N with mesons \(\eta \) , \(\rho \) , \(\omega \) etc. Experiments have shown a significant coupling of \(N^*\) (1535) to \(\eta \) N channel. In constituent quark model, N(1535) \(\frac{1}{2}^-\) is considered to be mixed state of \(P^2\frac{1}{2}-\) and \(P^4\frac{1}{2}-\) . An attempt has been made towards the study of such decay channels through the established chiral quark model and coupling constants.

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Strong Decay of Light Baryons

  • Chandni Menapara,
  • Akram Ansari,
  • Ajay Kumar Rai

摘要

The hypercentral Constituent Quark Model (hCQM) has been employed to obtain the resonance masses of light, strange baryons starting from N to \(\varOmega \) . The model has linear potential with higher order correction terms with spin-orbit term to best possible predict the spectra of excited states. With these, the strong decays play a significant role towards the understanding of underlying properties for a given state. The pion decay channels have been dominantly observed in almost all the \(N^*\) states. However, there are other meson exchange resulting in the decay of N with mesons \(\eta \) , \(\rho \) , \(\omega \) etc. Experiments have shown a significant coupling of \(N^*\) (1535) to \(\eta \) N channel. In constituent quark model, N(1535) \(\frac{1}{2}^-\) is considered to be mixed state of \(P^2\frac{1}{2}-\) and \(P^4\frac{1}{2}-\) . An attempt has been made towards the study of such decay channels through the established chiral quark model and coupling constants.