Electroweak Corrections to the Top Quark Decay

Details Electroweak Corrections to the Top Quark Decay Electroweak Corrections to the Top Quark Decay

2000-11-27

arxiv.org/abs/hep-ph/0011324v2

Phys.Rev. D64 (2001) 017301

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures

Scientific paper

10.1103/PhysRevD.64.017301

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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