Neutrino masses and mixing have provided direct evidence of physics beyond the Standard Model of Elementary Particles. Neutrinos experience a very different mixing compared to the quarks, and recently, hints of underlying symmetries in the neutrino mixing matrix have been exposed. Both the absolute neutrino mass scale and the ordering of neutrino masses remains unknown, and the evidence of non-zero mass prompts the question of whether neutrinos are their own antiparticles (Majorana fermions) or distinct from their antiparticles (Dirac fermions). Along with questions of their intrinsic properties, the weakly interacting nature of neutrinos means they can provide unique insight into the fusion cycles of the Sun and the complex mechanisms behind the core-collapse explosions of galactic supernovae.
Currently, the most critical problems in neutrino physics can be summarized as follows:
- Are neutrinos their own anti-particles?
- Do neutrinos and anti-neutrinos oscillate differently?
- What is the ordering of the three neutrino masses?
- What is the absolute neutrino mass scale?
With the SNO+ and DUNE experiments I am investigating these problems using two state-of-the-art technologies: metal-loaded liquid scintillation detectors and liquid argon detectors.
Fermilab Intensity Frontier Fellow 2015
Nuclear Science and Security Consortium Postdoc Fellow 2012