Plans for super-beams in Japan

TL;DR

This paper discusses Japan's plans for super-beam experiments, focusing on the T2K neutrino experiment, its upgrades, potential future experiments, and international collaboration efforts to advance neutrino physics research.

Contribution

It provides a detailed overview of the J-PARC neutrino beam upgrade plans, detector options, and international collaboration initiatives for future neutrino research in Japan.

Findings

T2K has begun operation and is expected to provide critical neutrino data.

Upgrades to the J-PARC neutrino beam are planned to enhance research capabilities.

European and CERN collaborations are actively involved in the project.

Abstract

In Japan, as the first experiment utilizes J-PARC (Japan Proton Accelerator Research Complex) neutrino facility, T2K (Tokai to Kamioka Long Baseline Neutrino Experiment) starts operation. T2K is supposed to give critical information, which guides the future direction of the neutrino physics. Possible new generation discovery experiment based on T2K outcome is discussed. Especially, description of J-PARC neutrino beam upgrade plan and discussion on far detector options to maximize potential of the research are focused. European participation and CERN commitment on Japanese accelerator based neutrino experiment is also reported.