Volume 476 - 42nd International Conference on High Energy Physics (ICHEP2024) - Neutrino Physics
The ND280 upgrade of the T2K Experiment
S. Joshi* and  On behalf of the T2K collaboration
*: corresponding author
Full text: pdf
Pre-published on: December 17, 2024
Published on: April 29, 2025
Abstract
T2K is a long-baseline experiment for the measurement of neutrino and antineutrino oscillations. The ND280 near detector at J-PARC plays a crucial role to minimise the systematic uncertainties
related to the neutrino flux and neutrino-nucleus cross-sections.

ND280 has been recently upgraded with a new suite of sub-detectors: a high granularity target with 2 million optically-isolated scintillating cubes read out by wavelength shifting fibres and
55000 Multi-Pixel Photon Counters; two horizontal Time-Projection Chambers instrumented with resistive Micromegas and 6 panels of scintillating bars for precise time-of-flight measurements.

The new detectors were installed in 2023-2024. Results from the first data collected with cosmics, and the performance of the detector will be highlighted: large acceptance for tracks produced at large angle, low threshold for proton reconstruction, full kinematic measurement of neutrons and improved particle identification.
DOI: https://doi.org/10.22323/1.476.0151
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