A Realization of Effective SUSY with Strong Unification

摘要: A natural model of realizing the effective supersymmetry is presented. Two sets of the Standard Model-like gauge group G1×G2 are introduced, where Gi = SU(3)i×SU(2)i ×U(1)i, which breakdiagonally to the Standard Model gauge group at the energy scale M ∼ 107 GeV. Gauge couplings in G1 are assumed much larger than that in G2. Gauge mediated supersymmetry breaking is adopted. The first two generations (third one) are charged only under G1 (G2). The effective supersymmetry spectrum is obtained. How to reproduce realistic Yukawa couplings is studied.Fine-tuning for an 126 GeV Higgs is much reduced by the large A term due to direct Higgs-messenger interaction. Finally, G2 is found to be a non-trivial realization of the strong unificationscenario in which case we can predict #11;s(MZ) without real unification