Beecroft Building, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU
Dr Peter Denton, Brookhaven National Laboratory
Abstract
The best way to probe CP violation in the lepton sector is with long-baseline accelerator neutrino experiments in the appearance mode. I will show that it is possible to discover CP violation with disappearance experiments only, by combining JUNO for electron neutrinos and DUNE or Hyper-Kamiokande for muon neutrinos. While the maximum sensitivity to discover CP is quite modest, some values of δ may be disfavored by > 3σ depending on the true value of δ.
Neutrino oscillation experiments will be entering the precision era in the next decade. Correctly estimating the confidence intervals from data for the oscillation parameters requires very large Monte Carlo data sets involving calculating the oscillation probabilities in matter many, many times. In this talk, I will leverage past work to present new, fast, precise techniques for calculating neutrino oscillation probabilities in matter leveraging state-of-the-art neutrino theory and linear algebra. The first technique is optimized for long-baseline, e.g. constant density, while the second is optimized for atmospheric and nighttime solar through sharply varying density profiles.