Testing non-standard CP violation in neutrino propagation

Abstract

Non-standard physics which can be described by effective four fermion interactions may be an additional source of CP violation in the neutrino propagation. We discuss the detectability of such a CP violation at a neutrino factory. We assume the current baseline setup of the international design study of a neutrino factory (IDS-NF) for the simulation. We find that the CP violation from certain non-standard interactions is, in principle, detectable significantly below their current bounds -- even if there is no CP violation in the standard oscillation framework. Therefore, a new physics effect might be mis-interpreted as the canonical Dirac CP violation, and a possibly even more exciting effect might be missed.

6 pages, 4 figures. Version to appear in PLB

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Cited by in corpus (21)

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• Large gauge invariant non-standard neutrino interactions
• Interpretation of MINOS data in terms of non-standard neutrino interactions
• Non-standard interactions spoiling the CP violation sensitivity at DUNE and other long baseline experiments
• Hints for leptonic CP violation or New Physics?
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• Resolving CP Violation by Standard and Nonstandard Interactions and Parameter Degeneracy in Neutrino Oscillations
• Physics with near detectors at a neutrino factory
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• A comparative study of long-baseline superbeams within LAGUNA for large ${\theta }_{13}$
• The effect of non-standard interactions and environmental decoherence at DUNE
• Geometric imprint of CP violation in two flavor neutrino oscillations
• Long baseline neutrino oscillations: Theoretical aspects