Two-loop heavy top effects on the MZ-MW interdependence

Abstract

The O(alpha^2 mt^2/mw^2) correction to the relation between G_μand the vector boson masses is computed in the MSbar scheme, and the results are used to investigate the magnitude of the effect on the theoretical prediction of mw and sin^2θ_\msbar(mz) from alpha, G_μ, and mz.

11 pages, LaTeX, includes 1 LaTeX figure, uses equations.sty and cite.sty, one minor comment and interpolation function for variable mtop added, no change in the results

References in corpus (5)

• Radiative Correction Effects of a Very Heavy Top
• Asymptotic Expansions in Momenta and Masses and Calculation of Feynman Diagrams
• QCD Corrections from Top Quark to Relations between Electroweak Parameters to Order ${\alpha }_s^2$
• Two-loop next-to-leading $\mt$ corrections to the $\rho$ parameter
• Two-loop electroweak top corrections: are they under control?

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