3 papers
hep-ph2025
A neutrino data analysis of extra-dimensional theories with massive bulk fields
Philipp Eller, Manuel Ettengruber, Alan Zander
We present a global neutrino oscillation analysis of models with a single large extra dimension in which right-handed neutrinos possess bulk Dirac masses. Two scenarios are conside…
hep-ph2025
Constraints on non-unitary neutrino mixing in light of atmospheric and reactor neutrino data
Tetiana Kozynets, Philipp Eller, Alan Zander +2
While the origin of neutrino masses remains unknown, several key neutrino mass generation models result in a non-unitary three-neutrino mixing matrix. To put such models to test, t…
hep-ph2024
How Many Dark Neutrino Sectors Does Cosmology Allow?
Alan Zander, Manuel Ettengruber, Philipp Eller
We present the very first constraints on the number of Standard Model (SM) copies with an additional Dirac right-handed neutrino. From cosmology, we are able to pose strong limits…