We have recalculated the Mikaelian and Smith radiative corrections to the Dalitz decay π0→e+e−γ beyond the soft-photon approximation, i.e. over the whole range of the Dalitz plot and with no restrictions on the radiative photon. In contrast to the previous calculations, we did not neglect the terms of order higher than O(m2) and also included the one-photon-irreducible contribution at one-loop level and the virtual muon loop contribution. The results can then be used also for heavier particles in the final state.
@article{arxiv.1504.06178,
title = {Radiative corrections to the Dalitz decay $\pi^0\to e^+e^-\gamma$ revisited},
author = {Tomas Husek and Karol Kampf and Jiri Novotny},
journal= {arXiv preprint arXiv:1504.06178},
year = {2015}
}
Comments
15 pages, 5 figures, 1 table and 3 ancillary files (C++ code); v2: accepted version for publication in Phys. Rev. D.; extended discussion, one table and muon loop contribution added, C++ code updated