CP-Violating and Charged Current Neutrino Non-standard Interactions in CE$\nu$NS

Abstract

Neutrino non-standard interactions (NSI) can be constrained using coherent elastic neutrino-nucleus scattering. We discuss here two aspects in this respect, namely the effects of (i) charged current NSI in neutrino production and (ii) CP-violating phases associated with neutral current NSI in neutrino detection. Effects of CP-phases require the simultaneous presence of two different flavor-changing neutral current NSI parameters. Applying these two scenarios to the COHERENT measurement, we derive limits on charged current NSI and find that more data is required to compete with the existing limits. Regarding CP-phases, we show how the limits on the NSI parameters depend dramatically on the values of the phases. Accidentally, the same parameters influencing coherent scattering also show up in neutrino oscillation experiments. We find that COHERENT provides complementary constraints on the set of NSI parameters that can explain the discrepancy in the best-fit value of the standard CP-phase obtained by T2K and NO$\nu$A, while the significance with which the LMA-Dark solution is ruled out can be weakened by the presence of additional NSI parameters introduced here.

15 pages, 5 figure, 1 table; Figure 3 was corrected for other experiments in V2

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Cited by in corpus (13)

• Measurement of the Coherent Elastic Neutrino-Nucleus Scattering Cross Section on CsI by COHERENT
• Exploring the effects of Scalar Non Standard Interactions on the CP violation sensitivity at DUNE
• Physics implications of recent Dresden-II reactor data
• Exploring SMEFT Induced Non-Standard Interactions from COHERENT to Neutrino Oscillations
• Constraining Non-Standard Interactions with Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source
• Imprints of scalar NSI on the CP-violation sensitivity using synergy among DUNE, T2HK and T2HKK
• Probing conventional and new physics at the ESS with coherent elastic neutrino-nucleus scattering
• Constraining scalar leptoquarks using COHERENT data
• Extra dimensions with light and heavy neutral leptons: An application to CE$\nu$NS
• Constraints on New Physics with Light Mediators and Generalized Neutrino Interactions via Coherent Elastic Neutrino Nucleus Scattering
• Hunting Nonstandard Neutrino Interactions and Leptoquarks in Dark Matter Experiments
• Phenomenological study of a gauged $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Neutrino-nucleon elastic scattering in presence of non-standard interactions: cross sections and nucleon polarizations