2000/04/30 by M. E. Gómez, M. E. Gomez, G. Lazarides +1 · 11 citations
Medicine · Physics and Astronomy · #Lung Cancer Research Studies #Neuroendocrine Tumor Research Advances #Salivary Gland Tumors Diagnosis and Treatment #hep-ph
paper · pdf · doi:10.1016/s0370-2693(00)00841-8
published as Phys.Lett.B487:313-320,2000 · 16 pages including 3 figures, Revtex, major revisions are made
arxiv created 2000/06/18 · openalex publication_date 2000/08/01 · arxiv updated 2009/11/30 · openalex created_date 2019/11/22 · openalex updated_date 2026/07/28
The minimal supersymmetric standard model with universal boundary conditions and "asymptotic" Yukawa unification is considered. The full one-loop effective potential for radiative electroweak symmetry breaking as well as the one-loop corrections to the charged Higgs boson, b-quark and tau lepton masses are included. The CP-even Higgs boson masses are corrected to two-loops. The relic abundance of the lightest supersymmetric particle (bino) is calculated by including its coannihilations with the next-to-lightest supersymmetric particle (lightest stau) consistently with Yukawa unification. The branching ratio of b --> s gamma is evaluated by incorporating all the applicable next-to-leading order QCD corrections. The bino-stau coannihilations reduce the bino relic abundance below the upper bound from cold dark matter considerations in a sizable fraction of the parameter space allowed by b --> s gamma for mu>0. Thus, the mu>0 case, which also predicts an acceptable b-quark mass, is perfectly compatible with data.