Experiments For CP-Violation: A Giant Liquid Argon Scintillation, Cerenkov And Charge Imaging Experiment ?

TL;DR

This paper proposes a large liquid Argon detector combining scintillation, Cerenkov, and charge imaging technologies for advanced neutrino experiments, including CP-violation searches, with potential broad physics applications.

Contribution

It introduces a novel design for a giant liquid Argon detector integrating multiple imaging methods, addressing technical feasibility and broadening physics research scope.

Findings

Potential implementation of a giant LAr detector is feasible.

Such a detector could significantly advance CP-violation studies.

The design supports multiple neutrino and rare event searches.

Abstract

In this paper we address a class of ``ultimate'' generation experiments for the search of CP-violation in neutrino oscillations. Neutrino factories require large magnetized detectors. New generation superbeams or beta-beams need giant detectors. The liquid Argon TPC technology has great potentials for both applications. Although the ICARUS program has demonstrated that this technology is mature, the possibility to built a giant liquid argon TPC is viewed by many as a technically impossible and unsafe task. We argue that a giant liquid argon Cerenkov and charge Imaging experiment would be an ideal match for a superbeam or a betabeam. Such a detector would in addition cover a broad physics program, including the observation of atmospheric neutrinos, solar neutrinos, supernova neutrinos, and search for proton decays, in addition to the accelerator physics program. We show a potential implementation of such a giant LAr detector and argue that it could be technically feasible. The possibility to host such a detector in an underground cavern is under study.