Angra Neutrino Project: status and plans

TL;DR

The Angra Neutrino Project is a proposed high-sensitivity experiment in Brazil to measure the neutrino mixing angle theta_13 with improved precision over previous experiments, utilizing a multi-detector setup with low background and systematic control.

Contribution

It introduces a new experimental setup at Angra dos Reis aiming to measure theta_13 with unprecedented sensitivity, surpassing previous limits by over an order of magnitude.

Findings

Projected sensitivity to sin^2(2*theta_13) = 0.006

Design features include high luminosity and low background

Systematic errors controlled at 1% level

Abstract

We present the status and plans of the Angra Project, a new nuclear reactor neutrino oscillation experiment, proposed to be built in Brazil at the Angra dos Reis nuclear reactor complex. This experiment is aimed to measure theta_13, the last unknown of the three neutrino mixing angles. Combining a high luminosity design, very low background from cosmic rays and careful control of systematic errors at the 1% level, we propose a high sensitivity multi-detector experiment, able to reach a sensitivity to antineutrino disappearance down to sin^2(2*theta_13) = 0.006 in a three years running period, improving present limits constrained by the CHOOZ experiment by more than an order of magnitude.