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Model independence of the logarithmic lepton-mass singularities in the radiative corrections to M/sub l/3 decay

Journal Article · · Phys. Rev. D; (United States)
OSTI ID:6406704
We have calculated the logarithmic lepton-mass singularities of the radiative corrections to order ..cap alpha.. to the three-body semileptonic decay of pseudoscalar mesons. No approximations concerning the smallness of the four-momentum transfer or the inner bremsstrahlung have been made. We find that the coefficients of the logarithmic lepton-mass singularities are structure independent. This result extends the validity of a theorem initially established by Marciano and Sirlin for the two-body semileptonic decay of pions and later proved to be valid for the semileptonic decay of baryons.
Research Organization:
Escuela Superior de Fisica y Matematicas del Instituto Politecnico Nacional, Unidad Profesional Zacatenco, Edificio 6, 07300 Mexico D.F., Mexico
OSTI ID:
6406704
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 30:5; ISSN PRVDA
Country of Publication:
United States
Language:
English