QED radiative corrections to the decay pi^0 to e^+e^-

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dc.creatorDorokhov, A. E.
dc.creatorKuraev, E. A.
dc.creatorBystritskiy, Yu. M.
dc.creatorSecanský, M.
dc.date2008-01-14
dc.date.accessioned2026-07-07T11:55:13Z
dc.date.available2026-07-07T11:55:13Z
dc.descriptionWe reconsider QED radiative corrections (RC) to the $π^{0}\to e^{+}e^{-}$ decay width. One kind of RC investigated earlier has a renormalization group origin and can be associated with the final state interaction of electron and positron. It determines the distribution of lepton pair invariant masses in the whole kinematic region. The other type of RC has a double-logarithmic character and is related to almost on-mass-shell behavior of the lepton form factors. The total effect of RC for the $π^{0}\to e^{+}e^{-}$ decay is estimated to be 3.2% and for the decay $η\to e^{+}e^{-}$ is 4.3%.
dc.description12 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0801.2028
dc.identifierhttp://arxiv.org/abs/0801.2028
dc.identifierEur.Phys.J.C55:193-198,2008
dc.identifierdoi:10.1140/epjc/s10052-008-0590-x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205170
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQED radiative corrections to the decay pi^0 to e^+e^-
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