Original scientific paper

Pion-nucleon sigma term in the linear sigma model

T. S. T. Ali ; Department of Mathematical Sciences, UAE University, P. O. Box. 17551, AL-AIN U.A.E. College of Science, Helwan University, Cairo, Egypt

Abstract

We apply the linear sigma model to analyze pion-nucleon sigma-term. Analytic expresions for these quantities are obtained in terms of the parameters of low-energy physics (pion decay constant and the pion mass). Good results have been obtained in comparison with author's previous work and with other models.

Keywords

pion-nucleon interaction; sigma term; mean field approximation

Hrčak ID:

304590

URI

https://hrcak.srce.hr/304590

Publication date:

1.3.2010.

Article data in other languages: croatian

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