Strangeness and Chiral Symmetry Breaking

TL;DR

This paper explores how chiral symmetry breaking and SU(3) symmetry breaking influence the quark sea and strangeness content in nucleons using the chiral constituent quark model, aligning with recent experimental data.

Contribution

It investigates the role of hidden strangeness in nucleons and demonstrates the chiral constituent quark model's effectiveness in describing quark sea generation and strangeness contributions.

Findings

Strangeness significantly contributes to nucleon properties.

The model aligns with recent experimental observations.

Chiral symmetry breaking explains quark sea generation.

Abstract

The implications of chiral symmetry breaking and SU(3) symmetry breaking have been studied in the chiral constituent quark model ($\chi$CQM). The role of hidden strangeness component has been investigated for the scalar matrix elements of the nucleon with an emphasis on the meson-nucleon sigma terms. The $\chi$CQM is able to give a qualitative and quantitative description of the "quark sea" generation through chiral symmetry breaking. The significant contribution of the strangeness is consistent with the recent available experimental observations.