Electroweak corrections to the top quark decay

2000/11/30 by S. M. Oliveira, Sancho Oliveira, L. Brücher +4 · 3 citations
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.64.017301

published as Phys.Rev. D64 (2001) 017301 · 7 pages, 2 figures

arxiv created 2001/01/18 · openalex publication_date 2001/05/21 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We calculate the one-loop electroweak corrections to the decay \stackrel\ensuremath→tbW⁺, including the counterterm for the CKM matrix elements V_tb. Previous calculations used an incorrect \ensuremathδV_tb that led to a gauge dependent amplitude. However, since the contribution stemming from \ensuremathδV_tb is small, those calculations only underestimate the width by roughly 1 part in 10⁵.

Citations

• CP-Violation in the Renormalizable Theory of Weak Interaction

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