Weak magnetism in chiral quark models

TL;DR

This paper examines symmetry breaking effects in weak magnetism form factors of octet baryon decays within chiral quark models, comparing predictions and clarifying features related to Goldstone boson effects.

Contribution

It provides a detailed analysis of symmetry breaking in weak magnetism form factors in chiral quark models and compares these results with the chiral quark soliton model.

Findings

Symmetry breaking can be described through mass differences and quark spin polarization variations.

Goldstone boson depolarization influences quark spin polarization.

Comparison shows similarities and differences between chiral quark and soliton models.

Abstract

We discuss symmetry breaking in the weak magnetism form factors for the semileptonic octet baryon decays. In the chiral quark model, the symmetry breaking can be accounted for in the masses and the quark spin polarizations can take on more general values due to Goldstone boson depolarization. Here we clarify some features of the chiral quark model prediction for the weak magnetism and compare to the corresponding result of the chiral quark soliton model.