Two Loop Electroweak Bosonic Corrections to the Muon Decay Lifetime
M. Awramik, M. Czakon
Abstract
A review of the calculation of the two loop bosonic corrections to Δr 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.
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