1993/10/06 by B. de Carlos, J.A. Casas, de Carlos, B. +2
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9310232
talk given at the XVI Kazimierz Meeting on Elementary Particle Physics, Kazimierz (Poland) 24-28 May 1993, 4 pages in standard LATEX + 2 figures (not included but available upon request), CERN-TH.7024/93
arxiv created 1993/10/06 · openalex publication_date 1993/10/06 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the region of the MSSM parameter space (i.e. M1/2, m0, μ, …) compatible with a correct electroweak breaking and a realistic top-quark mass. To do so we have included \em all the one-loop corrections to the effective potential V1 and checked their importance in order to obtain consistent results. We also consider the fine-tuning problem due to the enormous dependence of MZ on ht (the top Yukawa coupling), which is substantially reduced when the one-loop effects are taken into account. We also explore the reliability of the so-called "standard" criterion to estimate the degree of fine-tuning. As a consequence, we obtain a new set of upper bounds on the MSSM parameters or, equivalently, on the supersymmetric masses perfectly consistent with the present experimental bounds.