Far detectors for neutrino physics at T2K and Hyper-Kamiokande
Task 3.1 High-precision WC calibration and characterization. We use a set of different calibration devices both for
Super-K and Hyper-K. We will deliver, install and operate the Hyper-K light injection and LINAC calibration systems.
We aim to perform several calibration campaigns when the detectors are running. We will analyse the data to produce
accurate calibration constants and minimise systematics. Concerning Hyper-K we will also pre-calibration the PMTs to
be installed in the detector, both for the ID and OD systems.
Task 3.2 Underwater photodetection system. We will quality assure, install, test and operate the ID and OD photosensing
systems in Hyper-K. They include the mPMTs, which provide a new innovative photosensor system, and the OD 3”
PMTs with WL plates and high reflectivity Tyvel installed on the wall. We will install, operate, calibrate and qualityassure
the two photosensing systems.
Task 3.3 Underwater electronics. The underwater electronics is crucial for the experiments, as we cannot access the
system after the installation. Testing and installation are of vital importance. We will install, test and operate the electronic
underwater system. The DAQ’s machines will be installed on the surface, and data-taking will start.
Task 3.4 CPV analysis. We will exploit the higher increasing set of data from T2K towards the best constraints on
CPV whilst getting ready for Hyper-K and analysing the first data. Apart from maximizing our sensitivity on CPV and
performing measurements on the newly collected data, we will overall contribute to the analysis of the atmospheric and
astrophysical neutrinos with the Super-K Gd and Hyper-K neutrino observatories