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

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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 Δ_8 etc., strangeness contribution to the magnetic moments μ(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.
14 pages, 3 tables

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/140264

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0710.3444
 http://arxiv.org/abs/0710.3444

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arXiv