Gauged linear sigma model and pion-pion scattering
نویسندگان
چکیده
منابع مشابه
Pion - nucleon scattering and the nucleon sigma term in an extended linear sigma model
A modified linear sigma model that allows for g A = 1.26 by addition of vector and pseudovector πN coupling terms was discussed by Bjorken and Nauenberg and by Lee. In this extended linear sigma model the elastic πN scattering amplitudes satisfy the relevant chiral low-energy theorems, such as the Weinberg-Tomozawa relation for the isovector πN scattering length and in some cases Adler's " cons...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2009
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.80.113001