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Upgraded experiments with super neutrino beams: Reach versus Exposure

V. Barger·Patrick Huber·Danny Marfatia·Walter Winter
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Abstract

We introduce exposure as a means to making balanced comparisons of the sensitivities of long-baseline neutrino experiments to a nonzero θ_{13}, to CP violation and to the neutrino mass hierarchy. We illustrate its use by comparing the sensitivities of possible upgrades of superbeam experiments, namely NOvA*, T2KK and experiments with wide band beams. For the proposed exposures, we find the best nominal CP violation performance for T2KK. For equal exposures, a wide band beam experiment has the best mass hierarchy performance. The physics concept on which NOvA* is based has the best potential for discovering CP violation only for exposures above a threshold value.

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V. Barger, Patrick Huber, Danny Marfatia, Walter Winter. 2007-07-10. Upgraded experiments with super neutrino beams: Reach versus Exposure. https://doi.org/10.1103/physrevd.76.031301

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