Calculation of two-loop top-quark and Higgs-boson corrections in the electroweak Standard Model release_gxpddqmr2vgwdei74q2svne4ja

by S. Bauberger, G. Weiglein

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A combination of algebraical and numerical techniques for calculating two-loop top-quark and Higgs-boson corrections to electroweak precision observables like Δ r or the ρ-parameter is presented. The renormalization is performed within the on-shell scheme. The results of the calculations are valid for arbitrary values of m_t, M_H and of the gauge-boson masses. An example is treated where the full result is compared to the result obtained via an expansion up to next-to-leading order in m_t. As an application, results for the Higgs-mass dependent top-contributions to Δ r are given.
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Type  report
Stage   submitted
Date   1996-11-27
Version   v1
Language   en ?
Number  KA-TP-25-1996, WUE-ITP-96.030
arXiv  hep-ph/9611445v1
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Revision: 54f786e1-705c-4bf7-b1be-9a3f21aec3ea