Electroweak One Loop Corrections to the Decay of the Neutral Vector Bosonстатья
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Аннотация:The electroweak radiative corrections to the partial decay widths of the Z-boson into a pair of leptons or quarks have been calculated in the standard theory: View the MathML source. Results are presented in terms of two electroweak form factors, ϱ and κ, with simple physical interpretation. As a result of the calculational scheme used, the corrections are at most of the order of a few percent. They are rather stable against a variation of the Higgs boson mass MH. In the case of a heavy t-quark, the effective mixing parameter κ sin2θW may deviate from sin2θW 1 − MW2 / MZ2 by about 10%.