Probing Extra Dimensions with Neutrino Oscillations
P. A. N. Machado, H. Nunokawa, R. Zukanovich Funchal
TL;DR
This paper explores how sterile neutrinos in extra dimensions affect neutrino oscillations, providing new limits on the size of extra dimensions based on experimental data.
Contribution
It introduces a model where sterile neutrinos propagate in extra dimensions, leading to modified oscillation patterns and new constraints from current experiments.
Findings
Stringent limits on the size of extra dimensions a
Modified neutrino oscillation patterns due to KK modes
Constraints improve previous bounds on extra-dimensional models
Abstract
We consider a model where sterile neutrinos can propagate in a large compactified extra dimension (a) giving rise to Kaluza-Klein (KK) modes and the Standard Model left-handed neutrinos are confined to a 4-dimensional spacetime brane. The KK modes mix with the standard neutrinos modifying their oscillation pattern. We examine current experiments in this framework obtaining stringent limits on a.
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