1-5 July 2019
The University of Manchester
Europe/London timezone
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Searching for Heavy Neutral Leptons with DUNE

Presented by Mr. Tommaso BOSCHI on 2 Jul 2019 from 14:50 to 15:10
Type: oral presentation
Track: Neutrinos and Non-Accelerator Probes of New Physics


The origin of the neutrino mass is still an open problem in physics and many efforts are being made to solve it. Among the possible solutions, the simplest ones involve an extension of the Standard Model, where new singlet fermions are added. Symmetry-protected variants of the seesaw mechanism, like the Inverse Seesaw, could explain the existence of light-neutrino masses while also providing observable signatures of Heavy Neutral Leptons (HNLs) in a range of upcoming neutrino beam experiments. In this talk, I will discuss the phenomenology of sterile neutrinos arising from low-scale neutrino mass models and the implications of a realistic mass model on the search for HNL. I will focus in particular on the impact on the signal of the strong polarisation effects in the beam for Majorana and (pseudo-)Dirac states, providing formulae to incorporate these in both production and decay. I will then talk about signatures for discovery of HNL and signatures of lepton number violation that could be searched for in beam dump experiment, tailoring the study to the upcoming DUNE experiment.


Location: Schuster
Room: Moseley Lecture Theatre

Primary authors