Strong Constraints on Neutrino Nonstandard Interactions from TeV-Scale $\nu_u$ Disappearance at IceCube - INSPIRE

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Strong Constraints on Neutrino Nonstandard Interactions from TeV-Scale $\nu_u$ Disappearance at IceCube

IceCube

Collaboration

Jan 10, 2022

9 pages

Published in:

Phys.Rev.Lett. 129 (2022) 1, 1

Published: Jun 29, 2022
and
Published: Jun 20, 2022

e-Print:

2201.03566 [hep-ex]

DOI:

10.1103/PhysRevLett.129.011804 (publication)

Experiments:

ICECUBE

View in:

ADS Abstract Service

reference search30 citations

Citations per year

Abstract: (APS)

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

ε_{μ τ}

. The best-fit value is consistent with no NSI at a

p

value of 25.2%. With a 90% confidence interval of

- 0.0041 \leq ε_{μ τ} \leq 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.

scale: TeV
neutrino: interaction
neutrino/mu: atmosphere
IceCube
observatory
neutrino: oscillation
statistical analysis
data analysis method
experimental results

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Figures(4)

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