Abstract
We discuss effective models derived from a supersymmetric model whose mediation mechanism of supersymmetry (SUSY) breaking is namely mirage mediation. In this model, light higgsino mass, that is required by the natural realization of the electroweak scale, is achieved by the unification of the soft SUSY breaking parameters at the low scale. Besides, we find that extra Higgs fields are also possibly light in some cases. Then, the effective model is a two Higgs doublet model (2HDM) with higgsinos, and it is distinguishable with namely type-II 2HDM which is widely discussed. In this paper, we study the mass spectrum of SUSY particles and the extra Higgs fields, and summarize the phenomenology in the effective model. We survey the current experimental bounds from 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 the future prospects for the direct and indirect searches. We also discuss the difference between our effective model and the 2HDM in the bottom-up approach.
Highlights
JHEP11(2017)189 renormalization-group (RG) correction of the moduli-mediation contribution is canceled by the anomaly-mediation
We study the mass spectrum of SUSY particles and the extra Higgs fields, and summarize the phenomenology in the effective model
We discuss the difference between our effective model and the 2HDM in the bottom-up approach
Summary
The mirage mediation is a mixture of the modulus and anomaly mediations. Once the mediation mechanism of the supersymmetry breaking is specified, the soft SUSY breaking terms, given by. Equation (2.9) shows that m2Hu at the mirage scale vanishes at the leading order if cHu = 0 is satisfied This means that |μ|2 m2Hu is EW-scale even when the other scalar. The sub-leading correction would come from the fluctuation of the mirage scale from MSUSY, higher-loop corrections in both the MSSM and UV-models, and sub-leading corrections in moduli stabilizations. Those corrections are expected to be small, so that only the higgsino and the extra Higgs bosons are below sub-TeV, while all the other sparticles are expected to be heavier than the sub-TeV scale
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