17 citations · 29 across the 4 of their papers we have counts for
4 papers · 1 filter
Generation of neutrino dark matter, baryon asymmetry, and radiation after quintessential inflation
Kohei Fujikura, Soichiro Hashiba, Jun'ichi Yokoyama
We construct a model explaining dark matter, baryon asymmetry and reheating in quintessential inflation model. Three generations of right-handed neutrinos having hierarchical masse…
Gauge Field Production and Schwinger Reheating in Runaway Axion Inflation
Soichiro Hashiba, Kohei Kamada, Hiromasa Nakatsuka
In a class of (pseudoscalar) inflation, inflationary phase is followed by a kination phase, where the Universe is dominated by the kinetic energy of the inflaton that runs away in…
Dark matter and baryon-number generation in quintessential inflation via hierarchical right-handed neutrinos
Soichiro Hashiba, Jun'ichi Yokoyama
Incorporating three generations of right-handed Majorana neutrinos to quintessential inflation, we construct a model which simultaneously explains inflation, dark energy, dark matt…
Gravitational particle creation for dark matter and reheating
Soichiro Hashiba, Jun'ichi Yokoyama
The purely gravitational dark matter (PGDM) which interacts with the standard model particles only by gravitational interaction has recently been discussed. Due to its feeble inter…