Sara Bolognesi (CEA)

The bumps in the road to the precision era of neutrino oscillation measurements

Abstract: The next-generation of long-baseline neutrino oscillation experiments (DUNE, T2HK), thanks to the large statistics of neutrino interactions in their huge detectors, will push the precision of neutrino oscillation measurements to an unprecedented level and will enable 5sigma determination of the neutrino mass-ordering and of CP-violation in the leptonic sector. The present long-baseline experiments (T2K, NOVA) are opening the road to such a big enterprise, notably identifying the most relevant systematic uncertainties and the best near detectors and analysis techniques to constrain them. The uncertainty due to the modeling of neutrino-nucleus interactions is emerging as the most relevant one, both in terms of size and complexity. Why such modeling is so important in the extrapolation of near detector constrains to the analysis of the oscillated spectrum at the far detector? Which part of the model of nuclear physics we need to improve to meet the challenge of precision for the next generation of experiments? How a clever and innovative design of near detectors can help? Answering such questions is crucial to enter in the precision era.