628 citations · 16.2k across the 353 of their papers we have counts for
22 papers · 2 filters
High-scale SUSY from an R-invariant New Inflation in the Landscape
Masahiro Kawasaki, Masaki Yamada, Tsutomu T. Yanagida +1
We provide an anthropic reason that the supersymmetry breaking scale is much higher than the electroweak scale as indicated by the null result of collider experiments and observed…
Cosmologically safe QCD axion without fine-tuning
Masaki Yamada, Tsutomu T. Yanagida, Kazuya Yonekura
Although QCD axion models are widely studied as solutions to the strong CP problem, they generically confront severe fine-tuning problems to guarantee the anomalous PQ symmetry. In…
Revisiting R-invariant Direct Gauge Mediation
Cheng-Wei Chiang, Keisuke Harigaya, Masahiro Ibe +1
We revisit a special model of gauge mediated supersymmetry breaking, the "R-invariant direct gauge mediation." We pay particular attention to whether the model is consistent with t…
Cosmological Problems of the String Axion Alleviated by High Scale SUSY of 10-100 TeV
Masahiro Kawasaki, Tsutomu T. Yanagida, Norimi Yokozaki
The string axion may provide the most attractive solution to the strong CP problem in QCD. However, the axion energy density easily exceeds the dark matter density in the present u…
Seminatural Gauge Mediation from Product Group Unification
Hajime Fukuda, Hitoshi Murayama, Tsutomu. T. Yanagida +1
We propose a focus point gauge mediation model based on the product group unification (PGU), which solves the doublet-triplet splitting problem of the Higgs multiplets. In the focu…
Focus Point Gauge Mediation with Incomplete Adjoint Messengers and Gauge Coupling Unification
Gautam Bhattacharyya, Tsutomu T. Yanagida, Norimi Yokozaki
As the mass limits on supersymmetric particles are gradually pushed to higher values due to their continuing non-observation at the CERN LHC, looking for focus point regions in the…