2002/03/31 by M. E. Gómez, M. E. Gomez, G. Lazarides +1 · 5 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/s0550-3213(02)00483-2
published as Nucl.Phys.B638:165-185,2002 · 27 pages including 10 figures, Revtex, minor corrections, version to appear in Nucl. Phys. B
arxiv created 2002/07/16 · openalex publication_date 2002/08/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We construct concrete supersymmetric grand unified theories based on the Pati-Salam gauge group SU(4)c x SU(2)L x SU(2)R which naturally lead to a moderate violation of "asymptotic" Yukawa unification and thus can allow an acceptable b-quark mass even with universal boundary conditions. We consider the constrained minimal supersymmetric standard model which emerges from one of these theories with a deviation from Yukawa unification which is adequate for mu>0. We show that this model possesses a wide and natural range of parameters which is consistent with the data on b --> s gamma, the muon anomalous magnetic moment, the cold dark matter abundance in the universe, and the Higgs boson masses. The lightest supersymmetric particle can be as light as about 107 GeV.