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Three Loop Leading Top Mass Contributions to the ρ Parameter

  • Michael Faisst
Conference paper
  • 372 Downloads
Part of the Lecture Notes in Physics book series (LNP, volume 616)

Abstract

We present analytic results for the three loop heavy top quark contributions of the electroweak ρ parameter. The calculation is carried out using the standard model lagrangian with vanishing gauge couplings. Within this gaugeless limit the masses of the Higgs boson M H and of the top quark m t are the single relevant mass scales. In the present calculation [1] we have investigated the behaviour of the ρ parameter in the limit of a Higgs mass equal to zero.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Michael Faisst
    • 1
  1. 1.Institut für Theoretische TeilchenphysikUniversität KarlsruheKarlsruheGermany

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