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International Journal of Theoretical Physics

, Volume 48, Issue 4, pp 1110–1121 | Cite as

Effect of the A-Term on the Nucleon Properties in the Extended Linear Sigma Model

  • M. Abu-Shady
Article

Abstract

In this paper, the effect of the gradient-expanded meson term on the nucleon properties is investigated. The A-term is included in the extended linear sigma model in the framework of some aspects of QCD. The field equations have been solved in the mean-field approximation for the hedgehog baryon state. We find that the inclusion of the new term improves the description of the nucleon properties in comparison with other models.

Keywords

Mean-field approximation Nucleon properties Linear sigma model 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of Mathematics, Faculty of ScienceMenoufia UniversityShebin El-KoumEgypt

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