A neutrino data analysis of extra-dimensional theories with massive bulk fields
High Energy Physics - Phenomenology
2025-08-07 v1 High Energy Physics - Experiment
Abstract
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 considered: Large Extra Dimensions with bulk masses and the Dark Dimension framework, both predicting a tower of sterile Kaluza-Klein states that mix with active neutrinos. Using data from MINOS/MINOS+, KamLAND, and Daya Bay, we perform a joint likelihood analysis. No signatures of these theories were found. Therefore, we constrain the compactification radius under different bulk mass and Yukawa coupling assumptions. Large positive bulk masses or sizable Yukawas lead to strong bounds, while small couplings or negative bulk masses remain less constrained.
Cite
@article{arxiv.2508.04274,
title = {A neutrino data analysis of extra-dimensional theories with massive bulk fields},
author = {Philipp Eller and Manuel Ettengruber and Alan Zander},
journal= {arXiv preprint arXiv:2508.04274},
year = {2025}
}