Oct 2025 - Sep 2026

Do neutrinos dream in 5D?

by Dhruv Pasari (Durham University)

Europe/London
Description
Large Extra Dimensions (LED) offer an intriguing way to explain the smallness of neutrino masses without invoking ultra-high energy scales. In this talk, we explore how a five-dimensional (5D) bulk fermion propagating in a flat extra dimension gives rise to a Kaluza-Klein (KK) tower of right handed neutrinos in the four dimensional effective theory. We present four distinct scenarios for neutrino mass generation, involving Dirac and Majorana mass terms that originate either in the bulk or on the brane. For each case, we examine the consequences for neutrino oscillations and discuss the phenomenological features one can derive when confronted with current experimental data.