Strangeness Content of the Nucleon in the \chiCQM_{config}

TL;DR

This paper uses the chiral constituent quark model with configuration mixing to calculate various parameters related to the strangeness content of the nucleon, achieving good agreement with experimental data.

Contribution

It provides new calculations of strangeness parameters in the nucleon within the QM_{config} model, explaining experimental observations.

Findings

Calculated elta s, elta_8, and magnetic moments rom the model.

Results show excellent agreement with recent experimental data.

Provides insights into the strangeness content of the nucleon.

Abstract

Several parameters characterizing the strangeness content of the nucleon have been calculated in the chiral constituent quark model with configuration mixing (\chiCQM_{config}) which is known to provide a satisfactory explanation of the ``proton spin problem'' and related issues. In particular, we have calculated the strange spin polarization \Delta s, the strangeness contribution to the weak axial vector couplings \Delta_8 etc., strangeness contribution to the magnetic moments \mu(p)^s etc., the strange quark flavor fraction f_s, the strangeness dependent quark ratios \frac{2 \bar s}{u+d} and \frac{2 \bar s}{\bar u+\bar d} etc.. Our results show in general excellent agreement with the recent experimental observations.