Magaletti, L. (2018) Search of neutrino CPV with the T2K experiment. Il nuovo cimento C, 41 (4). pp. 1-8. ISSN 1826-9885
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Abstract
In the T2K (Tokai-to-Kamioka) experiment, an off-axis neutrino beam with a peak energy of ∼ 0.6 GeV is produced at the J-PARC accelerator facility, with the flavour content dominated by either muon neutrinos or muon antineutrinos, depending on the choice of the polarity of the magnetic focusing horns. The neutrino beam is detected first in the near detector ND280, where the flavour composition of the incoming neutrino flux is not expected to be affected by oscillation, and then travels 295 km to the far detector Super-Kamiokande, where oscillation significantly affects the flavour composition. We report the results of a joint analysis of neutrino and anti-neutrino oscillations at T2K, obtained by collecting a total statistic of 2.25×1021 protons-on-target (POT). Currently T2K can claim the world leading sensitivity to the neutrino-sector CPV, thanks to a number of critical improvements in the oscillation analysis combined together with a stable operation at intense beam power. In fact, T2K is the first experiment able to reject the CP-conserving values of δCP at 2σ C.L.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 24 Nov 2020 14:13 |
| Last Modified: | 24 Nov 2020 14:13 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20269 |
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