Neutrino factory optimization for non-standard interactions

Abstract

We study the optimization of a neutrino factory with respect to non-standard neutral current neutrino interactions, and compare the results to those obtained without non-standard interactions. We discuss the muon energy, baselines, and oscillation channels as degrees of freedom. Our conclusions are based on both analytical calculations and on a full numerical simulation of the neutrino factory setup proposed by the international design study (IDS-NF). We consider all possible non-standard parameters, and include their complex phases. We identify the impact of the different parameters on the golden, silver, and disappearance channels. We come to the conclusion that, even in the presence of non-standard interactions, the performance of the neutrino factory hardly profits from a silver channel detector, unless the muon energy is significantly increased compared to the IDS-NF setup. Apart from the dispensable silver channel detector, we demonstrate that the IDS-NF setup is close to optimal even if non-standard interactions are considered. We find that one very long baseline is a key component in the search for non-standard interactions, in particular for |ε^m_{μτ}| and |ε^m_{ττ}|.

LaTeX, 30 pages, 7 figures, 1 table

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• Non-Standard Neutrino Interactions with Matter from Physics Beyond the Standard Model
• General bounds on non-standard neutrino interactions
• Large gauge invariant non-standard neutrino interactions
• Perturbation Theory of Neutrino Oscillation with Nonstandard Neutrino Interactions
• Loop bounds on non-standard neutrino interactions
• Non-Standard Neutrino Interactions from a Triplet Seesaw Model
• Exact and Approximate Formulas for Neutrino Mixing and Oscillations with Non-Standard Interactions
• Theoretical Overview of Neutrino Properties
• Approximative two-flavor framework for neutrino oscillations with nonstandard interactions
• New interactions: past and future experiments
• Probing Non-Standard Neutrino Physics at Neutrino Factory and T2KK
• Long baseline neutrino oscillations: Theoretical aspects