Calculation of fermionic twoloop contributions to muon decay
Abstract
The computation of the correction Δɾ in the WZ mass correlation, derived from muon decay, is described at the twoloop level in the Standard Model. Technical aspects which become relevant at this level are studied, e.g. gauge parameter independent renormalization and the treatment of γ_{5}. Exact results for Δɾ and the W mass prediction including O(α ^{2}) corrections with fermion loops are presented and compared with previous results of a nexttoleading order expansion in the topquark mass.
 Publication:

Nuclear Physics B Proceedings Supplements
 Pub Date:
 2000
 DOI:
 10.1016/S09205632(00)008276
 arXiv:
 arXiv:hepph/0007129
 Bibcode:
 2000NuPhS..89...82F
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 10 pages LaTeX including 4 figures, Talk given by A. F. at the 5th Zeuthen Workshop on Elementary Particle Theory "Loops and Legs in Quantum Field Theory", Bastei/Koenigstein, Germany, April 914, 2000