1996/09/25 by Christopher Kolda, John March-Russell · 3 citations
Mathematics · Physics and Astronomy · #Approx #Computer science #Cosmology and Gravitation Theories #Gauge (firearms) #Gaugino #Grand Unified Theory #Heterotic string theory #Higgs boson #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Scalar (mathematics) #Superpartner #Supersymmetry #Unification #hep-ph
paper · pdf · doi:10.1103/physrevd.55.4252
published as Phys. Rev. D 55, 4252 (1997) · 21 pages in LaTeX with 4 embedded figures
arxiv created 1996/09/25 · openalex publication_date 1997/04/01 · arxiv updated 2016/08/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider the low-energy signatures of, and high-energy motivations for, scenarios of semiperturbative gauge coupling unification. Such scenarios can leave striking imprints on the low-energy sparticle spectrum, including novel gaugino mass ratios (including M2/M1\ensuremath≈1), substantial compression of the intragenerational squark-to-slepton mass ratios, and an overall lifting of scalar masses relative to the gauginos. We also demonstrate that the unification scale can be raised to MX\ensuremath≈4\ifmmode×\else\texttimes\fi1017 GeV while still in the perturbative regime-close to the one-loop heterotic string scale. We employ a three-loop calculation of the running of the gauge couplings as a test of the perturbativity of the high-scale theory.