167 citations · 1.5k across the 73 of their papers we have counts for
5 papers · 1 filter
Very low scale Coleman-Weinberg inflation with non-minimal coupling
Kunio Kaneta, Osamu Seto, Ryo Takahashi
We study viable small-field Coleman-Weinberg (CW) inflation models with the help of non-minimal coupling to gravity. The simplest small-field CW inflation model (with a low-scale p…
Dark photon relic dark matter production through the dark axion portal
Kunio Kaneta, Hye-Sung Lee, Seokhoon Yun
We present a new mechanism to produce the dark photon () in the early universe with a help of the axion () using a recently proposed dark axion portal. The dark photon, a li…
Hillclimbing Higgs inflation
Ryusuke Jinno, Kunio Kaneta, Kin-ya Oda
We propose a realization of cosmic inflation with the Higgs field when the Higgs potential has degenerate vacua by employing the recently proposed idea of hillclimbing inflation. T…
Hillclimbing inflation
Ryusuke Jinno, Kunio Kaneta
We propose a new class of inflationary models in which inflation takes place while the inflaton is climbing up a potential hill due to a coupling to gravity. We study their attract…
Sterile neutrino dark matter from right-handed neutrino oscillations
Kenji Kadota, Kunio Kaneta
We study a scenario where sterile neutrino (either warm or cold) dark matter (DM) is produced through (nonresonant) oscillations among right-handed neutrinos (RHNs) and can constit…