If the top is very heavy, mt ⪢ Mz, the dominant radiative correction effects in all electroweak precision tests can be exactly characterized in terms of two quantities, the ϱ-parameter and the GIM-violating coupling. These quantities can be computed using the standard model lagrangian with vanishing gauge couplings. This is done here up to two loops for arbitrary values of the Higgs mass.
Radiative correction effects of a very heavy top
VICERE', ANDREA
1992
Abstract
If the top is very heavy, mt ⪢ Mz, the dominant radiative correction effects in all electroweak precision tests can be exactly characterized in terms of two quantities, the ϱ-parameter and the GIM-violating coupling. These quantities can be computed using the standard model lagrangian with vanishing gauge couplings. This is done here up to two loops for arbitrary values of the Higgs mass.File in questo prodotto:
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