2003/03/31 by Csaba Balázs, Csaba Balazs, Radovan Dermisek +1
Physics and Astronomy · #Anomalous magnetic dipole moment #Gaugino #Grand Unified Theory #Orbifold #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #SO(10) #Supersymmetry #Supersymmetry breaking #Symmetry breaking #Yukawa potential #hep-ph
paper · pdf · doi:10.1088/1126-6708/2003/06/024
published as JHEP 0306 (2003) 024 · 20 pages, 8 figures. References added. A copy of the paper with better resolution figures can be found at http://www.hep.fsu.edu/~balazs/Physics/Papers/2003/
openalex publication_date 2003/06/13 · arxiv created 2003/07/09 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The requirement of Yukawa coupling unification highly constrains the SUSY parameter space. In several SUSY breaking scenarios it is hard to reconcile Yukawa coupling unification with experimental constraints from B(b->s gamma) and the muon anomalous magnetic moment amu. We show that b-tau or even t-b-tau Yukawa unification can be satisfied simultaneously with b->s gamma and amu in the non-universal gaugino mediation scenario. Non-universal gaugino masses naturally appear in higher dimensional grand unified models in which gauge symmetry is broken by orbifold compactification. Relations between SUSY contributions to fermion masses, b->s gamma and amu which are typical for models with universal gaugino masses are relaxed. Consequently, these phenomenological constraints can be satisfied simultaneously with a relatively light SUSY spectrum, compared to models with universal gaugino masses.