3 papers
hep-ph2024
Sterile neutrino dark matter within the SMEFT
Kaori Fuyuto, Jacky Kumar, Emanuele Mereghetti +2
Sterile neutrinos with masses at the scale and mixing to the active neutrinos offer an elegant explanation of the observed dark matter (DM) density. However, the ver…
hep-ph2022
Unstable Neutrinos can Relax Cosmological Mass Bounds
Stefan Sandner
The light neutrino masses are at present most stringently constraint via cosmological probes. In particular the Planck collaboration reports at $9…
astro-ph.CO2019
The Different Regimes of Axion Gauge Field Inflation
Valerie Domcke, Stefan Sandner
In axion gauge field inflation an axion-like particle driving cosmic inflation is coupled to the Chern-Simons density of an Abelian or non-Abelian gauge group. In the case of a non…