Global constraints on muon-neutrino non-standard interactions

Abstract

The search for new interactions of neutrinos beyond those of the Standard Model may help to elucidate the mechanism responsible for neutrino masses. Here we combine existing accelerator neutrino data with restrictions coming from a recent atmospheric neutrino data analysis in order to lift parameter degeneracies and improve limits on new interactions of muon neutrinos with quarks. In particular we re-consider the results of the NuTeV experiment in view of a new evaluation of its systematic uncertainties. We find that, although constraints for muon neutrinos are better than those applicable to tau or electron neutrinos, they lie at the few $\times 10^{-2}$ level, not as strong as previously believed. We briefly discuss prospects for further improvement.

10 pages, 5 figures, 2 tables

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• Phenomenology with Massive Neutrinos
• CP Violation and Neutrino Oscillations
• Precision determination of electroweak parameters and the strange content of the proton from neutrino deep-inelastic scattering
• Constraining Nonstandard Neutrino-Electron Interactions
• Loop bounds on non-standard neutrino interactions
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Cited by in corpus (15)

• Status of non-standard neutrino interactions
• Unbroken B-L Symmetry
• Bounds on Non-Standard Neutrino Interactions Using PINGU
• Non-Standard Neutrino Interactions in the mu-tau sector
• EFT analysis of New Physics at COHERENT
• A Direct Detection View of the Neutrino NSI Landscape
• Neutrino oscillations and Non-Standard Interactions
• A neutrino window to scalar leptoquarks: from low energy to colliders
• MINOS Anomaly as A Signal of Lorentz Violation
• Probing Non-Standard Interactions at Daya Bay
• Implications of NSI constraints from ANTARES and IceCube on a simplified $Z^{\prime }$ model
• Neutrino-nucleon elastic scattering in presence of non-standard interactions: cross sections and nucleon polarizations
• Constraints on the $U(1{)}_{B-L}$ model from global QCD analysis
• Neutrino nonstandard interactions: Confronting COHERENT and LHC data
• ${\delta }_{CP}$-free constraints on NSI parameters ${\epsilon }_{e\mu }$ and ${\epsilon }_{e\tau }$ using high-purity ${\nu }_{\mu }$ CC events at IceCube DeepCore