Semileptonic decays of the light J(P)=1/2(+) ground state baryon octet

TL;DR

This paper calculates semileptonic decay form factors of light baryon octets using a covariant quark model, analyzing SU(3) symmetry breaking effects and providing detailed decay rate and asymmetry predictions.

Contribution

It introduces a covariant quark model approach that separates valence quark and chiral effects to analyze hyperon semileptonic decays with SU(3) breaking corrections.

Findings

Calculated decay rates and asymmetry parameters including lepton mass effects.

Analyzed SU(3) symmetry breaking corrections to form factors.

Provided comprehensive predictions for hyperon semileptonic decays.

Abstract

We calculate the semileptonic baryon octet-octet transition form factors using a manifestly Lorentz covariant quark model approach based on the factorization of the contribution of valence quarks and chiral effects. We perform a detailed analysis of SU(3) breaking corrections to the hyperon semileptonic decay form factors. We present complete results on decay rates and asymmetry parameters including lepton mass effects for the rates.