Abstract

The NuTAG project proposes a new experimental approach for accelerator based neutrino experiments. In these experiments, the neutrino beam is produced from pions decaying to neutrinos. NuTAG proposes to instrument the neutrino beam line with high intensity silicon pixel spectrometers. These devices allow to detect pions and neutrinos and thus to reconstruct, using simple kinematical relations, the neutrino characteristics with unprecedented precision. Using time and angular coincidences, these neutrinos can individually be associated to the ones interacting in the neutrino detector. Such an experimental setup thus allows to track each neutrino from production to interaction and offer high precision measurements of the neutrino characteristics, which is the ideal configuration to study numerous topics in neutrino physics. At short baseline experiments, NuTAG would notably allow to improve the knowledge on the neutrino interactions and so enhance the physics potential of the upcoming long baseline experiment (DUNE and HK). Used at a long baseline experiment in conjunction with a megaton scale natural water Cerenkov detector, NuTAG would allow to measure key observables such as the leptonic CP violating phase with an unmatched precision of few degrees. The seminar will describe in details the NuTAG technique, the technological challenges to implement it, its scientific potential and the proof-of-principle study ongoing at NA62.