${\delta }_{CP}$-free constraints on NSI parameters ${\epsilon }_{e\mu }$ and ${\epsilon }_{e\tau }$ using high-purity ${\nu }_{\mu }$ CC events at IceCube DeepCore

Abstract

Atmospheric neutrinos provide a unique avenue to probe theories beyond the Standard Model (BSM) over a wide range of energies and path lengths. The theory of nonstandard interactions (NSI) of neutrinos is one of the important BSM scenarios, which can modify flavor oscillations of atmospheric neutrinos traveling through the Earth. In this work, we use a high-purity ${\nu }_{\mu }$ charged-current (CC) sample of atmospheric neutrinos from IceCube DeepCore with a livetime of 7.5 years to search for the NSI parameters ${\epsilon }_{e\mu }$, ${\epsilon }_{e\tau }$, and ${\epsilon }_{ee}-{\epsilon }_{\mu \mu }$. The ${\nu }_{\mu }$ CC events mainly come from the ${\nu }_{\mu }$ survival channel having no significant dependence on ${\delta }_{CP}$. Therefore, the constraints on ${\epsilon }_{e\mu }$ and ${\epsilon }_{e\tau }$ obtained using this ${\nu }_{\mu }$ CC sample are expected to be free from the ${\delta }_{CP}$-degeneracy. The data sample is found to be in agreement with the standard neutrino interactions. Therefore, we place bounds on these NSI parameters that are consistent with and comparable to existing experimental constraints. These ${\delta }_{CP}$-free constraints from IceCube DeepCore are complementary to those from the long-baseline neutrino oscillation experiments, where the appearance channel depends on ${\delta }_{CP}$.

arXiv comment14 pages, 12 figures, 3 tables, and two appendices. A new Figure 1 and some text have been added. Matches with the published version in PRD

References in corpus (49)

• Evidence for oscillation of atmospheric neutrinos
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• The fate of hints: updated global analysis of three-flavor neutrino oscillations
• The IceCube Neutrino Observatory: Instrumentation and Online Systems
• Status of non-standard neutrino interactions
• NuFit-6.0: Updated global analysis of three-flavor neutrino oscillations
• The Design and Performance of IceCube DeepCore
• Atmospheric neutrino flux calculation using the NRLMSISE00 atmospheric model
• Series expansions for three-flavor neutrino oscillation probabilities in matter
• General bounds on non-standard neutrino interactions
• Non standard neutrino interactions
• Non-standard neutrino interactions in reactor and superbeam experiments
• Atmospheric Neutrino Oscillations and New Physics
• Measurement of Atmospheric Neutrino Oscillations at 6-56 GeV with IceCube DeepCore
• Uncertainties in Atmospheric Neutrino Fluxes
• Neutrino Non-Standard Interactions: A Status Report
• Updated Constraints on Non-Standard Interactions from Global Analysis of Oscillation Data
• General Neutrino Interactions from an Effective Field Theory Perspective
• Determination of matter potential from global analysis of neutrino oscillation data
• Large gauge invariant non-standard neutrino interactions
• Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data
• Curtailing the Dark Side in Non-Standard Neutrino Interactions
• Study of Non-Standard Neutrino Interactions with Atmospheric Neutrino Data in Super-Kamiokande I and II
• Degeneracies in long-baseline neutrino experiments from nonstandard interactions
• Non-Standard Interactions: Atmospheric versus Neutrino Factory Experiments
• Probing Non-Standard Interaction of Neutrinos with IceCube and DeepCore
• Degeneracy between ${\theta }_{23}$ octant and neutrino non-standard interactions at DUNE
• Perturbation Theory of Neutrino Oscillation with Nonstandard Neutrino Interactions
• Testing matter effects in propagation of atmospheric and long-baseline neutrinos
• Global constraints on muon-neutrino non-standard interactions
• Non-standard interactions and the CP phase measurements in neutrino oscillations at low energies
• Measurement of Atmospheric Neutrino Mixing with Improved IceCube DeepCore Calibration and Data Processing
• Non-standard interactions with high-energy atmospheric neutrinos at IceCube
• Search for Nonstandard Neutrino Interactions with IceCube DeepCore
• A search for flavor-changing non-standard neutrino interactions by MINOS
• Resolving CP Violation by Standard and Nonstandard Interactions and Parameter Degeneracy in Neutrino Oscillations
• On the massless "just-so" solution to the solar neutrino problem
• Testing non-standard neutrino matter interactions in atmospheric neutrino propagation
• Non-Standard Neutrino Interactions in the mu-tau sector
• Constraints on Flavor-Diagonal Non-Standard Neutrino Interactions from Borexino Phase-II
• Constraining Non-Standard Interactions of the Neutrino with Borexino
• Neutrino Physics with Non-Standard Interactions at INO
• A New Approach to Probe Non-Standard Interactions in Atmospheric Neutrino Experiments
• Low Energy Event Reconstruction in IceCube DeepCore
• Enhancing Sensitivity to Non-Standard Neutrino Interactions at INO combining muon and hadron information
• Biprobability approach to CP phase degeneracy from non-standard neutrino interactions
• Search for $CP$-Violating Neutrino Nonstandard Interactions with the NOvA Experiment
• Non-Standard Interactions of Supernova Neutrinos and Mass Ordering Ambiguity at DUNE