Neutrino-Antineutrino Identification in a Liquid Scintillator Detector: Towards a Novel Decay-at-Rest-based Neutrino CPV Framework

TL;DR

This paper proposes a new method for studying CP violation in neutrinos using a liquid scintillator detector to identify electron neutrinos and antineutrinos from decay-at-rest sources, supported by Monte Carlo simulations.

Contribution

It introduces a novel detector technology and approach for distinguishing neutrino types, enabling new investigations into neutrino CP violation.

Findings

Preliminary detection technique results show promising identification capabilities.

Monte Carlo simulations suggest significant physics reach for CP violation studies.

The approach could enhance sensitivity to CP violation in future experiments.

Abstract

We introduce a novel approach to investigate CP violation in the neutrino sector, based on the simultaneous detection of $\nu_e$ and $\bar{\nu}_e$ stemming from the oscillation of $\nu_{\mu}$ and $\bar{\nu}_{\mu}$ produced in the decay at rest of $\pi$s and $\mu$s at a beam dump. This approach relies on a novel liquid scintillator detector technology expected to yield unprecedented identification of $\nu_e$ and $\bar{\nu}_e$ charged-current interactions, which we investigate by means of Montecarlo simulations. Here we report preliminary results concerning both the detection technique and its physics reach.