English

Spin and Flavor Strange Quark Content of the Nucleon

High Energy Physics - Phenomenology 2008-11-26 v1

Abstract

Several spin and flavor dependent 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 crisis'' 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 flavor ratios \frac{2 \bar s}{u+d} and \frac{2 \bar s}{\bar u+ \bar d} etc.. Our results are consistent with the recent experimental observations.

Keywords

Cite

@article{arxiv.0806.0692,
  title  = {Spin and Flavor Strange Quark Content of the Nucleon},
  author = {Harleen Dahiya and Manmohan Gupta},
  journal= {arXiv preprint arXiv:0806.0692},
  year   = {2008}
}

Comments

15 pages, 3 tables, to appear in PRD