TTP - TTP03-39 Two Loop Electroweak Bosonic Corrections to the Muon Decay Lifetime

Institute for Theoretical Particle Physics (TTP)

A review of the calculation of the two loop bosonic corrections to $\Delta r$ is presented. Factorization and matching onto the Fermi model are discussed. An approximate formula, describing the quantity over the interesting range of Higgs boson mass values from 100~GeV to 1~TeV is given.

Malgorzata Awramik, Michal Czakon

Nucl.Phys.Proc.Suppl. 116 238-242 2003

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TTP03-39 Two Loop Electroweak Bosonic Corrections to the Muon Decay Lifetime

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