QED Radiative Corrections to the Decay $π^{0} \rightarrow e^{+}e^{-}$

George Triantaphyllou

doi:10.1142/s0217732393001434

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arXiv · hep-ph/9301214

QED Radiative Corrections to the Decay $π^{0} \rightarrow e^{+}e^{-}$

George Triantaphyllou

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Abstract

In view of the recent interest in the decays of mesons into a pair of light leptons, a computation of the QED radiative corrections to the decay of $π^{0}$ into an electron-positron pair is presented here. The results indicate that the peak value of the differential decay rate is reduced by about $50 \%$, because of soft-photon radiation. The number of $e^{+}e^{-}$ pairs having invariant masses in an energy bin of 0.5 MeV centered around $m_π$ is found to be about $20 \%$ smaller than the one it would be if radiative corrections were neglected.

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George Triantaphyllou. 1993-01-07. QED Radiative Corrections to the Decay $π^{0} \rightarrow e^{+}e^{-}$. https://doi.org/10.1142/s0217732393001434

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