Probing Extra Dimensions with Neutrino Oscillations
  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. 
P. A. N. Machado, H. Nunokawa and R. Zukanovich Funchal
hep-ph hep-ex