Hadronic corrections at \cal O(α²) to the energy spectrum of muon decay

2000/11/17 by A. I. Davydychev, A.I. Davydychev, K. Schilcher +1 · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1007/s100520100577

published as Eur.Phys.J.C19:99-104,2001 · 12 pages Latex with 4 figures

arxiv created 2000/11/17 · openalex publication_date 2001/02/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We consider the impact of O(alpha²) hadronic corrections to the energy spectrum of the decay electron in muon decay. We find that the correction can be described, within good approximation, by a linear function in the electron energy. Explicit expressions for the form factors needed in an approach based on dispersion integrals are given.

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• The electron energy spectrum in muon decay through 𝒪(α2)