TITUS: the Tokai Intermediate Tank for the Unoscillated Spectrum

TL;DR

TITUS is a proposed Gd-doped Water Cherenkov detector near J-PARC, designed to enhance Hyper-Kamiokande's neutrino measurements, cross section studies, and searches for supernova neutrinos and dark matter.

Contribution

This paper introduces TITUS, a novel intermediate detector concept, and evaluates its potential to improve neutrino oscillation measurements and other physics goals for Hyper-Kamiokande.

Findings

Enhanced sensitivity to CP and mixing parameters with TITUS as a near detector.

Potential for precise cross section and Standard Model parameter measurements.

Capability to detect supernova neutrinos and dark matter signals.

Abstract

The TITUS, Tokai Intermediate Tank for Unoscillated Spectrum, detector, is a proposed Gd-doped Water Cherenkov tank with a magnetised muon range detector downstream. It is located at J-PARC at about 2 km from the neutrino target and it is proposed as a potential near detector for the Hyper-Kamiokande experiment. Assuming a beam power of 1.3 MW and 27.05 x 10^{21} protons-on-target the sensitivity to CP and mixing parameters achieved by Hyper-Kamiokande with TITUS as a near detector is presented. Also, the potential of the detector for cross sections and Standard Model parameter determination, supernova neutrino and dark matter are shown.