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Electroweak Corrections to the Top Quark Decay

S. M. Oliveira·L. Bruecher·R. Santos·A. Barroso
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Abstract

We have calculated the one-loop electroweak corrections to the decay t-> bW+, including the counterterm for the CKM matrix elements V(tb). Previous calculations used an incorrect delta V(tb) that led to a gauge dependent amplitude. However, since the contribution stemming from delta V(tb) is small, those calculations only underestimate the width by roughly one part in 10^5.

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S. M. Oliveira, L. Bruecher, R. Santos, A. Barroso. 2001-01-18. Electroweak Corrections to the Top Quark Decay. https://doi.org/10.1103/physrevd.64.017301

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