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Radiative corrections to the decays K_L^0->e^+e^- and K_L^0->mu^+mu^-

Duane A. Dicus·Wayne W. Repko
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Abstract

We calculate the rates and lepton (l) invariant mass distributions for decays of the form 0^{-+}->l^+l^-γ, which are important radiative corrections to the purely leptonic decays 0^{-+}->l^+l^-. Our approach uses the loop diagrams which arise by including the two photon intermediate state and we retain the imaginary parts of the loops - a radiative extension of the `unitarity bound' for the process. These results are compared which those obtained using a model in which the meson couples directly to the leptons.

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Duane A. Dicus, Wayne W. Repko. 1999-01-05. Radiative corrections to the decays K_L^0->e^+e^- and K_L^0->mu^+mu^-. https://doi.org/10.1103/physrevd.59.094018

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