Strong Constraints on Neutrino Nonstandard Interactions from TeV-Scale νμ Disappearance at IceCube

(IceCube Collaboration)

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We report a search for nonstandard neutrino interactions (NSI) using eight years of TeV-scale atmospheric muon neutrino data from the IceCube Neutrino Observatory. By reconstructing incident energies and zenith angles for atmospheric neutrino events, this analysis presents unified confidence intervals for the NSI parameter ϵμτ. The best-fit value is consistent with no NSI at a p value of 25.2%. With a 90% confidence interval of -0.0041≤ϵμτ≤0.0031 along the real axis and similar strength in the complex plane, this result is the strongest constraint on any NSI parameter from any oscillation channel to date.

Original languageEnglish (US)
Article number011804
JournalPhysical review letters
Volume129
Issue number1
DOIs
StatePublished - Jul 1 2022

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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