The electron energy spectrum in muon decay through O(alpha^2)

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dc.creatorAnastasiou, Charalampos
dc.creatorMelnikov, Kirill
dc.creatorPetriello, Frank
dc.date2005-05-09
dc.date2005-05-19
dc.date.accessioned2026-07-07T11:31:48Z
dc.date.available2026-07-07T11:31:48Z
dc.descriptionWe compute the complete O(alpha^2) QED corrections to the electron energy spectrum in unpolarized muon decay, including the full dependence on the electron mass. Our calculation reduces the theoretical uncertainty on the electron energy spectrum well below 10^{-4}, the precision anticipated by the TWIST experiment at TRIUMF, which is currently performing this measurement. For this calculation, we extend techniques we have recently developed for performing next-to-next-to-leading order computations to handle the decay spectra of massive particles. Such an extension enables further applications to precision predictions for b, t, and Higgs differential decay rates.
dc.description19 pages, 2 figures; reference added
dc.identifierhttps://arxiv.org/abs/hep-ph/0505069
dc.identifierhttp://arxiv.org/abs/hep-ph/0505069
dc.identifierJHEP0709:014,2007
dc.identifierdoi:10.1088/1126-6708/2007/09/014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197388
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleThe electron energy spectrum in muon decay through O(alpha^2)
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