Higgs-mass dependence of two-loop corrections to Delta r

Details Higgs-mass dependence of two-loop corrections to Delta r Higgs-mass dependence of two-loop corrections to Delta r

1997-07-29

arxiv.org/abs/hep-ph/9707510v2

Phys.Lett. B419 (1998) 333-339

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX, minor changes, version to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(97)01458-5

The Higgs-mass dependence of the Standard Model contributions to the correlation between the gauge-boson masses is studied at the two-loop level. Exact results are given for the Higgs-dependent two-loop corrections associated with the fermions, i.e. no expansion in the top-quark and the Higgs-boson mass is made. The results for the top quark are compared with results of an expansion up to next-to-leading order in the top-quark mass. Agreement is found within 30% of the two-loop result. The remaining theoretical uncertainties in the Higgs-mass dependence of Delta r are discussed.

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