152 citations · 1.9k across the 51 of their papers we have counts for
51 papers
A lower bound on primordial power spectrum from halo substructure
Shin'ichiro Ando, Nagisa Hiroshima, Koji Ishiwata +1
We investigate how the primordial curvature perturbation of a certain wavelength scale affects the halo and subhalo structure. Primordial power spectrum considered in this paper fe…
Supersymmetric Baryogenesis in a Hybrid Inflation Model
Yoshihiro Gunji, Koji Ishiwata, Takahiro Yoshida
We study baryogenesis in a hybrid inflation model which is embedded to the minimal supersymmetric model with right-handed neutrinos. Inflation is induced by a linear combination of…
Subcritical regime of hybrid inflation with modular symmetry
Yoshihiro Gunji, Koji Ishiwata, Takahiro Yoshida
We consider a supergravity model that has the modular symmetry and discuss the interplay between the neutrino mixing and inflation. The model contains right-handed neutrinos…
Constraining the primordial curvature perturbation using dark matter substructure
Shin'ichiro Ando, Nagisa Hiroshima, Koji Ishiwata
We investigate the primordial curvature perturbation by the observation of dark matter substructure. Assuming a bump in the spectrum of the curvature perturbation in the wavenumber…
Topology-insensitive axion mass in magnetic topological insulators
Koji Ishiwata
We study the axion in three-dimensional topological insulators with magnetic impurities under finite temperature. We find a stable antiferromagnetic ground state and ferromagnetic…
The International Linear Collider: Report to Snowmass 2021
Alexander Aryshev, Ties Behnke, Mikael Berggren +508
The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our…