Eric Christensen, Pilar Coloma, Patrick Huber
We investigate the minimal performance, in terms of beam luminosity and detector size, of a neutrino factory to achieve a competitive physics reach for the determination of the mass hierarchy and the discovery of leptonic CP violation. We find that a low luminosity of $10^{20}$ useful muon decays per year and 5\,GeV muon energy aimed at a 10\,kton magnetized liquid argon detector placed at 1300\,km from the source provides a good starting point. This result relies on $\theta_{13}$ being large and assumes that the so-called platinum channel can be used effectively. We find that such a minimal facility would perform significantly better than phase~I of the LBNE project and thus could constitute a reasonable step towards a full neutrino factory.
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http://arxiv.org/abs/1301.7727
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