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On the QCD corrections to Δρ

1994/03/13 by A. Sirlin, Sirlin, A.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9403282

8 pages in TeX, no figure

arxiv created 1994/03/13 · openalex publication_date 1994/03/13 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss a simple method to evaluate the QCD corrections to Δρ. It assumes that the perturbative expansion in terms of \ms parameters is meaningful and, unlike other studies, exploits significant available information concerning \chass corrections. This approach leads to an enhancement of ∼26% relative to the conventional evaluation. QCD corrections to the Z0→ b b amplitude are also considered. Implications for electroweak physics are briefly discussed.

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