Neutrino Oscillation Appearance Experiment using Nuclear Emulsion and Magnetized Iron

TL;DR

This paper proposes a neutrino oscillation experiment using nuclear emulsion and magnetized iron to measure neutrino properties, enabling comprehensive studies of the mixing matrix, CP violation, and sterile neutrinos.

Contribution

It introduces a novel detector design combining nuclear emulsion with magnetic fields to measure neutrino interactions and their charges, enhancing oscillation physics measurements.

Findings

Potential to measure all neutrino oscillation channels

Capability to determine neutrino charge and identity

Ability to search for sterile neutrinos and CP violation

Abstract

This report describes an apparatus that could be used to measure both the identity and charge of an outgoing lepton in a charged current neutrino interaction. This capability in a massive detector would allow the most comprehensive set of neutrino oscillation physics measurements. By measuring the six observable transitions between initial and final state neutrinos, one would be able to measure all elements of the neutrino mixing matrix, as well as search for CP violation, and matter effects. If the measured matrix is not unitary, then one would also have an unambiguous determination of sterile neutrinos. Emulsion is considered as the tracking medium, and different techniques are discussed for the application of a magnetic field.