1996/10/15 by D. Schildknecht, Dieter Schildknecht, Schildknecht, Dieter
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9610366
Talk presented at the International School of Subnuclear Physics, 34th Course: Effective Theories and Fundamental Interactions, Erice, Sicily, 3-12 July, 1996. 24 pages, latex, 10 ps and 2 eps files included
arxiv created 1996/10/15 · openalex publication_date 1996/10/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We review the empirical evidence for the validity of the Standard Electroweak Theory in nature. The experimental data are interpreted in terms of an effective Lagrangian for Z physics, allowing for potential sources of SU(2) violation and containing the predictions of the Standard Electroweak Theory as a special case. Particular emphasis is put on discriminating loop corrections due to fermion-loop vector-boson propagator corrections on the one hand, from corrections depending on the non-Abelian structure and the Higgs sector on the other hand. Results from recently obtained fits of the Higgs-boson mass are reported, yielding MH < 550GeV [800GeV] at 95% C.L. based on the input of swbar2(LEP+SLD)=0.23165+-0.00024 [swbar2(LEP)=0.23200 +-0.00027]. With respect to LEP2, it is emphasized that first direct experimental evidence for non-zero non-Abelian couplings among the vector bosons can be obtained even with restricted e+e- luminosity.