Hadronic corrections at O(alpha(2)) to the energy spectrum of muon decay

Authors
Davydychev, AI Schilcher, K Spiesberger, H
Citation
Ai. Davydychev et al., Hadronic corrections at O(alpha(2)) to the energy spectrum of muon decay, EUR PHY J C, 19(1), 2001, pp. 99-104
Citations number
26
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
14346044 → ACNP
Volume
19
Issue
1
Year of publication
2001
Pages
99 - 104
Database
ISI
SICI code
1434-6044(200102)19:1<99:HCAOTT>2.0.ZU;2-R
Abstract
We consider the impact of O(alpha (2)) hadronic corrections to the energy s pectrum of the decay electron in muon decay. We find that the correction ca n be described, within good approximation, by a linear function in the elec tron energy. Explicit expressions for the form factors needed in an approac h based on dispersion integrals are given.