Analysis of the TeV-scale mirage mediation with heavy superparticles

摘要

We discuss effective models derived from a supersymmetric model whosemediation mechanism of supersymmetry (SUSY) breaking is namely miragemediation. In this model, light higgsino mass, that is required by the naturalrealization of the electroweak scale, is achieved by the unification of thesoft SUSY breaking parameters at the low scale. Besides, we find that extraHiggs fields are also possibly light in some cases. Then, the effective modelis a two Higgs doublet model (2HDM) with higgsinos, and it is distinguishablewith namely type-II 2HDM which is widely discussed. In this paper, we study themass spectrum of SUSY particles and the extra Higgs fields, and summarize thephenomenology in the effective model. We survey the current experimental boundsfrom the LHC and the dark matter experiments as well as the flavor physics.Then, we point out the expected mass scale of the SUSY particles and reveal thefuture prospects for the direct and indirect searches. We also discuss thedifference between our effective model and the 2HDM in the bottom-up approach.