Current algebra and vector form factor of Ke4
نویسندگان
چکیده
منابع مشابه
Isospin breaking in the phases of the Ke4 form factors
Isospin breaking in the K 4 form factors induced by the difference between charged and neutral pion masses is studied. Starting from suitably subtracted dispersion representations, the form factors are constructed in an iterative way up to two loops in the low-energy expansion by implementing analyticity, crossing, and unitarity due to two-meson intermediate states. Analytical expressions for t...
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ژورنال
عنوان ژورنال: Il Nuovo Cimento A
سال: 1968
ISSN: 0369-3546,1826-9869
DOI: 10.1007/bf02758899