1996/11/03 by Tomas Blazek, T. Blažek, Marcela Carena +2 · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #Computer science #Context (archaeology) #Dark Matter and Cosmic Phenomena #Electroweak interaction #Electroweak scale #Mathematics #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Standard Model (mathematical formulation) #Statistics #Supersymmetry #hep-ph
paper · pdf · doi:10.1103/physrevd.56.6919
published as Phys.Rev.D56:6919-6938,1997 · 37 pages, Latex, 14 figures included in separate files
arxiv created 1996/11/03 · openalex publication_date 1997/12/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the details of a global \ensuremathχ2 analysis of electroweak data, including fermion masses and mixing angles, in SO(10) SUSY GUTs. Just as precision electroweak data are used to test the standard model, the well-determined standard model parameters are the precision electroweak data for testing theories beyond the standard model. In this paper we use the latest experimentally measured values for these parameters. We study several models discussed in the literature. One of these models provides an excellent fit to the low energy data with \ensuremathχ2\ensuremath∼1 for three degrees of freedom. We present graphs of constant \ensuremathχ2 contours as functions of position in soft SUSY-breaking parameter space, as well as our predictions for a few selected points in parameter space. We also study the sensitivity of our results to changes in various parameters. Finally, we discuss the consequences of our work in the context of a general MSSM analysis at the Z scale.