Standard versus generalized chiral perturbation theory: The Chell-Olsson test
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چکیده
منابع مشابه
Standard vs . Generalized Chiral Perturbation Theory : the Chell - Olsson Test
A way of testing the ππ predictions of Chiral Perturbation Theory against experimental data is to use dispersion relations to continue experimental information into the subthreshold region where the theory should unambiguously apply. Chell and Olsson have proposed a test of the subthreshold behaviour of chiral expansions which highlights potential differences between the Standard and the Genera...
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The Generalized Chiral Perturbation Theory enlarges the framework of the standard χPT, relaxing certain assumptions which do not necessarily follow from QCD or from experiment, and which are crucial for the usual formulation of the low energy expansion. In this way, the experimental tests of the foundations of the standard χPT become possible. Emphasize is put on physical aspects rather than on...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1997
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.55.3082