235 citations · 2.2k across the 57 of their papers we have counts for
6 papers · 1 filter
Neutrino experiments probe hadrophilic light dark matter
Yohei Ema, Filippo Sala, Ryosuke Sato
We use Super-K data to place new strong limits on interactions of sub-GeV Dark Matter (DM) with nuclei, that rely on the DM flux inevitably induced by cosmic-ray upscatterings. We…
Renormalization Group Equations of Higgs- Inflation
Yohei Ema, Kyohei Mukaida, Jorinde van de Vis
We derive one- and two-loop renormalization group equations (RGEs) of Higgs- inflation. This model has a non-minimal coupling between the Higgs and the Ricci scalar and a Ricc…
Dark matter models for the 511 keV galactic line predict keV electron recoils on Earth
Yohei Ema, Filippo Sala, Ryosuke Sato
We propose models of Dark Matter that account for the 511 keV photon emission from the Galactic Centre, compatibly with experimental constraints and theoretical consistency, and wh…
High-frequency Graviton from Inflaton Oscillation
Yohei Ema, Ryusuke Jinno, Kazunori Nakayama
We point out that there is a high-frequency tail of the stochastic inflationary gravitational wave background that scales as with frequency . This contribution comes…
Spontaneous Baryogenesis from Axions with Generic Couplings
Valerie Domcke, Yohei Ema, Kyohei Mukaida +1
Axion-like particles can source the baryon asymmetry of our Universe through spontaneous baryogenesis. Here we clarify that this is a generic outcome for essentially any coupling o…
Higgs Inflation as Nonlinear Sigma Model and Scalaron as its -meson
Yohei Ema, Kyohei Mukaida, Jorinde van de Vis
We point out that a model with scalar fields with a large nonminimal coupling to the Ricci scalar, such as Higgs inflation, can be regarded as a nonlinear sigma model (NLSM). With…