199 citations · 4.2k across the 135 of their papers we have counts for
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Asymptotically Free Natural SUSY Twin Higgs
Marcin Badziak, Keisuke Harigaya
Twin Higgs (TH) models explain the absence of new colored particles responsible for natural electroweak symmetry breaking (EWSB). All known ultraviolet completions of TH models req…
QCD Axion Dark Matter with a Small Decay Constant
Raymond T. Co, Lawrence J. Hall, Keisuke Harigaya
The QCD axion is a good dark matter candidate. The observed dark matter abundance can arise from misalignment or defect mechanisms, which generically require an axion decay constan…
Axion induced SUSY breaking and focus point gaugino mediation
Keisuke Harigaya, Tsutomu T. Yanagida, Norimi Yokozaki
We consider a scenario where the supersymmetry breaking and its mediation, and the cancellation of the theta parameter of SU(3)c are all caused by a single chiral multiplet. The st…
Unified Model of Chaotic Inflation and Dynamical Supersymmetry Breaking
Keisuke Harigaya, Kai Schmitz
The large hierarchy between the Planck scale and the weak scale can be explained by the dynamical breaking of supersymmetry in strongly coupled gauge theories. Similarly, the hiera…
Minimal Non-Abelian Supersymmetric Twin Higgs
Marcin Badziak, Keisuke Harigaya
We propose a minimal supersymmetric Twin Higgs model that can accommodate tuning of the electroweak scale for heavy stops better than 10% with high mediation scales of supersymmetr…
Gravitino Production Suppressed by Dynamics of Sgoldstino
Raymond T. Co, Keisuke Harigaya
In supersymmetric theories, the gravitino is abundantly produced in the early Universe from thermal scattering, resulting in a strong upper bound on the reheat temperature after in…
Effective Theory of Flavor for Minimal Mirror Twin Higgs
Riccardo Barbieri, Lawrence J. Hall, Keisuke Harigaya
We consider two copies of the Standard Model, interchanged by an exact parity symmetry, P. The observed fermion mass hierarchy is described by suppression factors for cha…
Saxion Cosmology for Thermalized Gravitino Dark Matter
Raymond T. Co, Francesco D'Eramo, Lawrence J. Hall +1
In all supersymmetric theories, gravitinos, with mass suppressed by the Planck scale, are an obvious candidate for dark matter; but if gravitinos ever reached thermal equilibrium,…
Supersymmetric D-term Twin Higgs
Marcin Badziak, Keisuke Harigaya
We propose a new type of supersymmetric Twin Higgs model where the SU(4) invariant quartic term is provided by a D-term potential of a new U(1) gauge symmetry. In the model the 125…
Unified Models of the QCD Axion and Supersymmetry Breaking
Keisuke Harigaya, Jacob Leedom
Similarities between the gauge meditation of supersymmetry breaking and the QCD axion model suggest that they originate from the same dynamics. We present a class of models where s…