28 citations · 122 across the 29 of their papers we have counts for
3 papers · 1 filter
MeV-scale reheating temperature and thermalization of oscillating neutrinos by radiative and hadronic decays of massive particles
Takuya Hasegawa, Nagisa Hiroshima, Kazunori Kohri +3
From a theoretical point of view, there is a strong motivation to consider an MeV-scale reheating temperature induced by long-lived massive particles with masses around the weak sc…
Dependence of accessible dark matter annihilation cross-sections on the density profiles of dwarf spheroidal galaxies with the Cherenkov Telescope Array
Nagisa Hiroshima, Masaaki Hayashida, Kazunori Kohri
Dwarf spheroidal galaxies are excellent targets in gamma-ray searches for dark matter. We consider dark matter searches in dwarf spheroidal galaxies (dSphs) with the Cherenkov Tele…
Halo Substructure Boosts to the Signatures of Dark Matter Annihilation
Shin'ichiro Ando, Tomoaki Ishiyama, Nagisa Hiroshima
The presence of dark matter substructure will boost the signatures of dark matter annihilation. We review recent progress on estimates of this subhalo boost factor---a ratio of the…