1996/09/10 by Alessandro Strumia, Алессандро Струмиа
Mathematics · Physics and Astronomy · #Boson #Chargino #Computer science #Constraint (computer-aided design) #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Electroweak interaction #Gaugino #Geometry #Gluino #Mathematics #Minimal Supersymmetric Standard Model #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Radiative transfer #Right handed #Supersymmetry #Symmetry breaking #Unification #hep-ph
paper · pdf · doi:10.1016/s0370-2693(97)00064-6
published as Phys.Lett.B397:204-208,1997 · 4 pages, figures included, one reference added. PS-file also available at http://www.ft.uam.es/~strumia/15Art/15Art2.ps
arxiv created 1996/09/10 · openalex publication_date 1997/04/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A right-handed stop not much heavier or even lighter than the Z boson has today desirable phenomenological consequences. We study how it can result within the usual radiative scenario of electroweak symmetry breaking. A restriction on the gaugino mass parameters, M2 < 0.3 m10, arises if soft terms satisfy relations suggested by unification theories. Moreover, requiring to get a light stop without unnatural fine-tunings below the per-cent level, we obtain another more interesting upper bound on the chargino mass, Mchargino < MZ, and we derive interesting conclusions about the masses of the gluino, M3 ∼ (150-300) GeV, of the heavy stop, Mstop ∼ (250-500) GeV, and of the left/right mixing angle in the stop sector, |θstop| < 0.3.