Large Extra Dimensions and Neutrino Oscillations
Abstract
We consider a model where right-handed neutrinos propagate in a large compactified extra dimension, engendering Kaluza-Klein (KK) modes, while the standard model particles are restricted to the usual 4-dimensional brane. A mass term mixes the KK modes with the standard left-handed neutrinos, opening the possibility of change the 3 generation mixing pattern. We derive bounds on the maximum size of the extra dimension from neutrino oscillation experiments. We show that this model provides a possible explanation for the deficit of nu_e in Ga solar neutrino calibration experiments and of the anti-nu_e in short baseline reactor experiments.
Cite
@article{arxiv.1110.1465,
title = {Large Extra Dimensions and Neutrino Oscillations},
author = {P. A. N. Machado and H. Nunokawa and F. A. Pereira dos Santos and R. Zukanovich Funchal},
journal= {arXiv preprint arXiv:1110.1465},
year = {2011}
}
Comments
4 pages, 2 figures, contribution to NUFACT 11, XIIIth International Workshop on Neutrino Factories, Super beams and Beta beams, 1-6 August 2011, CERN and University of Geneva (Submitted to IOP conference series)