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Phenomenology of a Low-Energy Neutrino Factory and Related Experiments



The discovery of neutrino oscillations is one of the most important in the recent history of particle physics, being the first evidence of physics beyond the Standard Model. We describe the theoretical framework of the neutrino oscillation model, motivate the necessity for a new generation of neutrino oscillation experiments and study the phenomenological factors which influence the design of these experiments. \ud \ud We perform the first detailed study of a European super-beam setup using the CERN to Pyhasalmi baseline of 2285 km, analysing the physics reach of this setup with a 100 kiloton liquid argon detector and comparing its performance to that of a 50 kiloton liquid scintillator detector and a 440 kiloton water Cerenkov detector. The liquid argon and liquid scintillator detectors are found to perform best, providing sensitivity to theta_{13}, delta and the mass hierarchy for sin^{2}2theta_{13} > 10^{-2}.\ud \ud A potential successor to super-beam experiments is a neutrino factory. We study a low-energy neutrino factory, a setup which has so far not been analysed in any detail, performing optimisation studies and an analysis of its sensitivity to oscillation parameters and non-standard matter interactions. We show that for sin^{2}2theta_{13} > 4x10^{-3}, a low-energy neutrino factory using a 20 kiloton totally active scintillating detector has 100% CP coverage for hierarchy sensitivity and theta_{13} discovery, and has greater sensitivity to CP violation than the high-energy neutrino factory. We consider the novel concept of including the `platinum channels' in addition to the `golden channels', showing that this is a powerful way of resolving the degeneracies between the oscillation and non-standard parameters. This enhances the sensitivity, such that the low-energy neutrino factory can put upper bounds \gtrsim10^{-2} on the non-standard interaction parameters epsilon_{e\mu} and epsilon_{e\tau}

Topics: Neutrino oscillations, neutrino oscillation experiments.
Year: 2010
OAI identifier:
Provided by: Durham e-Theses

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