Neutrino Oscillation Measurements at T2K
October 29, 2022
T2K is a long-baseline neutrino oscillation experiment, which studies the oscillations of neutrinos from a beam produced using the J-PARC accelerator chain. The neutrino beam propagates over 295 km before reaching the Super-Kamiokande detector, where they can be detected after having oscillated. The ability of the experiment to run with either neutrino beams or anti-neutrino beam makes it well suited to study the differences between the oscillations of neutrinos, in particular to look for a possible violation of CP symmetry in the lepton sector. T2K has produced a new analysis of its first 10 years of data, with improved models to describe neutrino interactions and fluxes as well as additional samples of near and far detector events. We will present the results of the measurement of the parameters describing neutrino oscillations obtained with the new analysis. In parallel, T2K has been working on joint analyses with other experiments, and we will give an update on the perspective of two joint analyses in preparation, with the Super-Kamiokande and the NOvA collaborations respectively.
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