New physics searches at near detectors of neutrino oscillation experiments

Abstract

We systematically investigate the prospects of testing new physics with tau sensitive near detectors at neutrino oscillation facilities. For neutrino beams from pion decay, from the decay of radiative ions, as well as from the decays of muons in a storage ring at a neutrino factory, we discuss which effective operators can lead to new physics effects. Furthermore, we discuss the present bounds on such operators set by other experimental data currently available. For operators with two leptons and two quarks we present the first complete analysis including all relevant operators simultaneously and performing a Markov Chain Monte Carlo fit to the data. We find that these effects can induce tau neutrino appearance probabilities as large as O(10^{-4}), which are within reach of forthcoming experiments. We highlight to which kind of new physics a tau sensitive near detector would be most sensitive.

20 pages, 2 figures, REVTeX4

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Cited by in corpus (8)

• Interpretation of MINOS data in terms of non-standard neutrino interactions
• Non-Standard Interactions at a Neutrino Factory: Correlations and CP violation
• Nonstandard Neutrino Interactions in Supernovae
• Non-Standard Neutrino Interactions at Colliders
• Non-Standard Neutrino Interactions at One Loop
• A comparative study of long-baseline superbeams within LAGUNA for large ${\theta }_{13}$
• Dispersive Quantum Systems: a class of isolated non-time reversal quantum systems
• New physics from oscillations at the DUNE near detector, and the role of systematic uncertainties