Abstract
QED radiative corrections to the decay of a pseudoscalar meson into a lepton pair have been estimated. The results are applied to the decay of the neutral pion into electron and positron. Formulas are also given for a pseudoscalar Higgs-like particle decaying to a lepton or quark pair. The results are also of relevance for QCD sum rules for the pseudoscalar current, where conflicting calculations exist in the literature.
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