Absorptive Corrections and Form Factors in the Peripheral Model
نویسندگان
چکیده
منابع مشابه
Chiral corrections to hyperon vector form factors.
We show that the leading SU(3)-breaking corrections to the ∆S = 1 f1 vector form factors of hyperons are O(ms) and O(m 3/2 s ), and are expected to be ∼ 20–30% by dimensional analysis. This is consistent with the Ademollo–Gatto theorem, in a sense that we explain. We compute the O(ms) corrections and a subset of the O(m 3/2 s ) corrections using an effective lagrangian in which the baryons are ...
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متن کاملChiral Corrections to the Hyperon Vector Form Factors
We present the complete calculation of the SU(3)-breaking corrections to the hyperon vector form factors up to O(p4) in the Heavy Baryon Chiral Perturbation Theory. Because of the Ademollo–Gatto theorem, at this order the results do not depend on unknown low energy constants and allow to test the convergence of the chiral expansion. We complete and correct previous calculations and find that O(...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1965
ISSN: 0031-899X
DOI: 10.1103/physrev.139.b956