Strangeness Content of the Nucleon in the \chiCQM_config

2007/10/18 by Harleen Dahiya, Dahiya, Harleen, Manmohan Gupta +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.0710.3444

14 pages, 3 tables

arxiv created 2007/10/18 · arxiv updated 2009/12/01

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 Δs, the strangeness contribution to the weak axial vector couplings Δ₈ etc., strangeness contribution to the magnetic moments μ(p)^s etc., the strange quark flavor fraction f_s, the strangeness dependent quark ratios (2 s)/(u+d) and (2 s)/( u+ d) etc.. Our results show in general excellent agreement with the recent experimental observations.

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