1992/10/14 by Paul Langacker, Nir Polonsky · 10 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.47.4028
published as Phys.Rev. D47 (1993) 4028-4045 · LaTex, 51 pages, 6 figures (available upon request), UPR-0513T
arxiv created 1992/10/14 · openalex publication_date 1993/05/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The status of coupling constant unification in the standard model and its supersymmetric extension are discussed. Uncertainties associated with the input coupling constants, mt, threshold corrections at the low and high scales, and possible nonrenormalizable operators are parametrized and estimated. A simple parametrization of a general supersymmetric new particle spectrum is given. It is shown that an effective scale MSUSY can be defined, but for a realistic spectrum it may differ considerably from the typical new particle masses. The implications of the lower (higher) values of \mathrm\ensuremathαs(MZ) suggested by low-energy (Z-pole) experiments are discussed.