Optimization of the baseline and the parent muon energy for a low energy neutrino factory

Dighe, Amol ; Goswami, Srubabati ; Ray, Shamayita (2012) Optimization of the baseline and the parent muon energy for a low energy neutrino factory Physical Review D: Particles, Fields, Gravitation, and Cosmology, 86 (7). Article ID 073001. ISSN 2470-0010

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Official URL: https://journals.aps.org/prd/abstract/10.1103/Phys...

Related URL: http://dx.doi.org/10.1103/PhysRevD.86.073001

Abstract

We discuss the optimal setup for a low energy neutrino factory in order to achieve a 5σ discovery of a nonzero mixing angle θ13, a nonzero CP phase ΔCP and the mass hierarchy. We explore parent muon energies in the range 5–16 GeV and baselines in the range 500–5000 km. We present the results in terms of the reach in sin2θ13, emphasizing the dependence of the optimal baseline on the true value of ΔCP. We show that the sensitivity of a given setup typically increases with parent muon energy, reaching saturation for higher energies. The saturation energy is larger for longer baselines; we present an estimate of this dependence. In the light of the recent indications of a large θ13, we also determine how these preferences would change if indeed a large θ13 is confirmed. In such a case, the baselines ∼2500  km (∼1500  km) may be expected to lead to hierarchy determination (ΔCP discovery) with the minimum exposure.

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ID Code:108806
Deposited On:01 Feb 2018 04:47
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