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Two-Loop Bosonic Electroweak Corrections to the Muon Lifetime and MZ-MW Interdependence

A. Onishchenko, O. Veretin

hep-pharXiv:hep-ph/0209010

Abstract

The two-loop electroweak bosonic correction to the muon lifetime and the MW-MZ interdependece is computed using analytical methods of asymptotic expansion. Combined with previous calculations this copmletes the full two-loop correction to Δr in the Standard Model. The shift to the prediction of W-boson mass due to two-loop bosonic corrections does not exceed 1 MeV for the range of the Higgs mass from 100 to 1000 GeV.

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