Spin and Flavor Strange Quark Content of the Nucleon

Details Spin and Flavor Strange Quark Content of the Nucleon Spin and Flavor Strange Quark Content of the Nucleon

2008-06-04

arxiv.org/abs/0806.0692v1

Phys.Rev.D78:014001,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 3 tables, to appear in PRD

Scientific paper

10.1103/PhysRevD.78.014001

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.

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