Nonstandard interactions versus planet-scale neutrino oscillations

The low-energy threshold and the large detector size of Precision IceCube Next Generation Upgrade (PINGU) can make the study on neutrino oscillations with a planet-scale baseline possible. In this task, we consider the configuration that neutrinos are produced at CERN and detected in the PINGU detec...

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Bibliographic Details
Published in:Physical review. D 2019-12, Vol.100 (11), p.1, Article 115034
Main Authors: Feng, Wei-Jie, Tang, Jian, Wang, Tse-Chun, Zhou, Yi-Xing
Format: Article
Language:English
Subjects:
CERN
Configurations
CP violation
Matter & antimatter
Neutrinos
Oscillations
Sensitivity
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Summary:The low-energy threshold and the large detector size of Precision IceCube Next Generation Upgrade (PINGU) can make the study on neutrino oscillations with a planet-scale baseline possible. In this task, we consider the configuration that neutrinos are produced at CERN and detected in the PINGU detector, as a benchmark. We discuss its sensitivity of measuring the size of nonstandard interactions (NSIs) in matter, which can be described by the parameter εαβ (α and β are flavors of neutrinos). We find that the CERN-PINGU configuration improves ε˜μμ≡εμμ−εττ and εμτ significantly compared to the next-generation accelerator neutrino experiments. Most of the degeneracy problems in the precision measurements can be resolved, except the one for ε˜μμ∼−0.035. Moreover, we point out that this configuration can also be used to detect the CP violation brought by NSIs. Finally, we compare the physics potential in this configuration to that for DUNE, T2HK, and P2O, and find that the CERN-PINGU configuration can significantly improve the sensitivity to NSIs.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.100.115034