273 citations · 1.4k across the 54 of their papers we have counts for
4 papers · 1 filter
Structure formation in a mixed dark matter model with decaying sterile neutrino: the 3.5 keV X-ray line and the Galactic substructure
Akira Harada, Ayuki Kamada
We perform a set of cosmological simulations of structure formation in a mixed dark matter (MDM) model. Our model is motivated by the recently identified X-ray lin…
Gravitational waves as a probe of SUSY scale
Ayuki Kamada, Masaki Yamada
We investigate the sources of the Hubble-induced mass for a flat direction in supersymmetric theories and show that the sign of the Hubble-induced mass generally changes just after…
A solution to the baryon-DM coincidence problem in the CMSSM with a 126-GeV Higgs boson
Ayuki Kamada, Masahiro Kawasaki, Masaki Yamada
We show that the baryon-dark matter coincidence problem is solved in the CMSSM. The baryons and dark matter are generated simultaneously through the late-time decay of non-topologi…
Affleck-Dine Baryogenesis and Dark Matter Production after High-scale Inflation
Keisuke Harigaya, Ayuki Kamada, Masahiro Kawasaki +2
The discovery of the primordial B-mode polarisation by the BICEP2 experiment indicates inflation with a relatively high energy scale. Taking this indication into account, we propos…