Izvorni znanstveni članak
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
Sažetak
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.
Ključne riječi
pion-nucleon interaction; sigma term; mean field approximation
Hrčak ID:
304590
URI
Datum izdavanja:
1.3.2010.
Posjeta: 440 *