**Email:**peter.ballett[AT]durham.ac.uk

#### Research Area

My interests lie in neutrino theory and phenomenology, with connections to flavour physics and model building. I have a particular interest in the phenomenology of neutrino oscillation experiments and their potential for exploring the lepton sector of the SM and beyond (especially anything related to CP violation, leptonic flavour or neutrino mass mechanisms). However, I find that I am interested in most topics in the neutrino sector, adjacent areas and beyond; do get in touch, if you want to talk about anything.

#### Publications

I have worked on a number of projects related to neutrino oscillation physics, theories of mass and flavour in the leptonic sector, and the intersection of these two things. Recently, I have been looking at the potential of Fermilab's SBN program to constrain heavy sterile neutrinos (arXiv:1610.08512), the complementarity of DUNE and T2HK (arXiv:1612.07275), and the phenomenology of highly predictive models of leptonic flavour (arXiv:1612.01999). More information to follow soon.

I have a long standing interest in the predictions and testability of models of flavour symmetries, especially via correlations between mixing parameters (so-called 'sum rules'). My collaborators and I have been recently looking at the CSD(n) class of models, which will be well tested over the next decade: arXiv:1612.01999. I have also studied the correlations which can arise from residual symmetries of the group A5 in the presence of a generalised form of CP invariance: arXiv:1503.07543. I am particularly interested in the generality of sum rule predictions, which can often be connected to a very small set of assumptions. These offer a nice way to test (a large chunk of) the paradigm of discrete flavour symmetries at upcoming experiments in a (relatively) model-independent manner. For more information on these, see e.g. arXiv:1410.7573, arXiv:1406.0308.

I also work on more conventional aspects of the long-baseline programme. Around 2013, I worked as a member of the LAGUNA-LBNO collaboration, where I was part of the Physics Task Force which developed and ran the simulations studying the long-baseline physics potential of the design. This work was then built on the following year to perform an analysis of an optimized design, as well as the potential of a dual-baseline facility. In the end, the project was not continued; however, the work (and many of the physicists themselves) became a key input to the DUNE project. See e.g. arXiv:1312.6520 and arXiv:1412.0593

A full list of publications can be found on inSPIRE.

#### Teaching

In the 2016/2017 academic year, I gave lectures on Neutrino Physics for those studying for an MSc in Particle Theory and on Quantum Theory as part of the third year undergraduate Theoretical Physics 3 module. I also had the pleasure of supervising four MPhys students on their research projects into various aspects of neutrino physics, oscillations and flavour symmetries.

In 2015/2016, I was lecturing Quantum Electrodynamics for the MSc course and Quantum Theory 3 for undergraduates.

#### Conference and workshop organisation

I am an organizer for the NuPhys conferences. We're currently putting the final touches on NuPhys2017 to be held on the 20-22 December at the Barbican, London. Check out NuPhys2016 for details of the previous events. You can also find us on Twitter.

I was also part the organizing committee for a topical meeting on neutrino-nucleus interactions to be held 18-20 April 2017 at the IPPP. More details can be found here.

#### Recent Talks and Presentations

- PPAP Community Meeting 2017 at RAL, July 2017.
- Neutrinos: the quest for a new scale at CERN, March 2017.
- Exotic Neutrino Workshop at Lancaster University, December 2016.
- HQL2016 at the Center for Neutrino Physics in Virginia Tech, May 2016.
- Invisibles Workshop 2015 at UAM in Madrid, June 2015.
- 11th LAGUNA-LBNO General Meeting at CERN, May 2014.
- NuPhys 2013 at the IOP in London, December 2013. This was a poster presentation.
- Invisibles 13 School at the IPPP in Durham, July 2013.
- 7th LAGUNA-LBNO General Meeting at CERN, June 2013. ,
- Astroparticle seminar: II. Institut für Theoretische Physik, Universität Hamburg, May 2013.
- IDS-NF 10 at the Rutherford Appleton Laboratory, April 2013.
- IPPP Internal Seminar in Durham, January 2013. Click here for slides.