1995/03/30 by Kyungsik Kang, Kang, Kyungsik, Sin Kyu Kang +1
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Cosmology and Gravitation Theories #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/9503478
6 pages, 2 postcript figures (appended), latex, Presented at Beyond the Standard Model IV, Granlibakken, Lake Tahoe, CA (December 13 -19, 1994)
openalex publication_date 1995/03/30 · arxiv created 1995/03/31 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
We critically reexamine the precision tests of the standard model by coupling the current world average value of MW with the recent LEP electroweak data with the aid of a modified ZFITTER program to include the dominant two-loop and QCD-EW mixed terms. The results show a clear evidence of nonvanishing electroweak radiative corrections. The recent CDF mt is a solution of the minimal χ2-fits to the recent LEP data set and MW=80.23(18)~ GeV but with a heavy Higgs scalar, i.e., mt=179~ GeV and mH=300~ GeV. We discuss how sensitive mt and mH are depending on the exact value of MW even within the present uncertainty, as well as on αs and α(MZ). We show how the future improvements on MW can discriminate different values of mt and mH from the electroweak data and provide a crucial and decisive test for the standard model.