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Using Reactors to Measure θ13\theta_{13}

Abstract

A next-generation neutrino oscillation experiment using reactor neutrinos could give important information on the size of mixing angle θ13\theta_{13}. The motivation and goals for a new reactor measurement are discussed in the context of other measurements using off-axis accelerator neutrino beams. The reactor measurements give a clean measure of the mixing angle without ambiguities associated with the size of the other mixing angles, matter effects, and effects due to CP violation. The key question is whether a next-generation experiment can reach the needed sensitivity goals to make a measurement for sin22θ13\sin^{2}2\theta_{13} at the 0.01 level. The limiting factors associated with a reactor disappearance measurement are described with some ideas of how sensitivities can be improved. Examples of possible experimental setups are presented and compared with respect to cost and sensitivity

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    Last time updated on 03/12/2019