Constraints on the minimal SUSY-SO(10) model from cosmology and the b → sγ decay

1994/12/29 by Francesca Borzumati, F. M. Borzumati, Marek Olechowski +3 · 54 citations
Physics and Astronomy · #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Particle physics #Particle physics theoretical and experimental studies #Philosophy #Physics #Quantum Chromodynamics and Particle Interactions #Supersymmetry #hep-ph

paper · pdf · doi:10.1016/0370-2693(95)00270-u

published in Physics Letters B 349(3), 311-318 (Elsevier BV) · 10 pages, latex, 5 figures (not included, available on request)

arxiv created 1994/12/29 · openalex publication_date 1995/04/01 · arxiv updated 2011/01/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

It is shown that the minimal supersymmetric SO(10) model with electroweak radiative breaking and universal soft mass terms at the GUT scale is strongly disfavoured by the combination of constraints from the b→ s γ decay and the condition Ωh² < 1 for the lightest (stable) neutralino. The constraints are, however, easily satisfied for certain class of supersymmetric SO(10) models with non--universal scalar masses which gives small supersymmetric corrections to the bottom quark mass and light higgsino--like neutralinos.

Citations

• Cosmic abundances of stable particles: Improved analysis
• Non-universal soft scalar masses in supersymmetric theories
• Systematic SO(10) operator analysis for fermion masses

Cited by

• Unified minimal supersymmetric model with large Yukawa couplings
• Supersymmetric unification at the millennium
• Electroweak precision observables in the minimal supersymmetric standard model
• Aspects of supersymmetric models with a radiatively driven inverted mass hierarchy