Muon Decay Spectrum: Leading Logarithmic Approximation
High Energy Physics - Phenomenology
2011-03-31 v2
Abstract
O(alpha^2 ln^2(m_mu/m_e)) QED corrections to the electron spectrum and angular distribution in muon decay are evaluated. Impact on the determination of Michel parameters is estimated. Current theoretical uncertainty in the muon decay distributions is discussed.
Cite
@article{arxiv.hep-ph/0202102,
title = {Muon Decay Spectrum: Leading Logarithmic Approximation},
author = {Andrej Arbuzov and Andrzej Czarnecki and Andrei Gaponenko},
journal= {arXiv preprint arXiv:hep-ph/0202102},
year = {2011}
}
Comments
8 pages, LaTeX, revtex4.cls, 6 PostScript figures