Measurement of Atmospheric Neutrino Oscillations at 6-56 GeV with IceCube DeepCore

By M. Aartsen, M. Ackermann, J. Adams, J. Aguilar, M. Ahlers, M. Ahrens, I. Al Samarai, D. Altmann, K. Andeen, T. Anderson and 306 more. 2017

159 citations recorded by the source corpus.

We present a measurement of the atmospheric neutrino oscillation parameters using three years of data from the IceCube Neutrino Observatory. The DeepCore infill array in the center of IceCube enables detection and reconstruction of neutrinos produced by the interaction of cosmic rays in the Earth's atmosphere at energies as low as $\sim5$ GeV. That energy threshold permits measurements of muon neutrino disappearance, over a range of baselines up to the diameter of the Earth, probing the same range of $L/E_\nu$ as long-baseline experiments but with substantially higher energy neutrinos. This analysis uses neutrinos from the full sky with reconstructed energies from $5.6$ - $56$ GeV. We measure $\Delta m^2_{32}=2.31^{+0.11}_{-0.13} \times 10^{-3}$ eV$^2$ and $\sin^2 \theta_{23}=0.51^{+0.07}_{-0.09}$, assuming normal neutrino mass ordering. These results are consistent with, and of similar precision to, those from accelerator and reactor-based experiments.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/751cd9d9c22c27b97ab309f9775d4b27b264f45c

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In Nuclear and High Energy Physics

1. Y. Farzan
2. M. Tórtola
3. M. Maltoni
4. T. Schwetz
5. M. Gonzalez-Garcia
6. Stefano Gariazzo
7. J. Valle
8. Z. Xing

Citations in the corpus

• 2020 global reassessment of the neutrino oscillation picture (2020, methodology): “In addition to track-like events, the released experimental data now includes also shower-like events, increasing the number of events from roughly 6000 [62] to around 20000 [58, 59].”
• Neutrino Oscillations and Non-standard Interactions (2017, methodology): “Indeed, a recent reanalysis of DeepCore atmospheric data [85] shows an improved sensitivity with respect to the region plotted in Fig.”
• Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics (2020, background): “Of course, experiments that cannot distinguish between neutrinos and antineutrinos, such as atmospheric data from Super–Kamiokande [409], IceCube-DeepCore [410, 411] and ANTARES [412] were not included.”
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of θ23, δCP, and the mass ordering (2018, result): “4 In this respect it is interesting to notice that the ICECUBE collaboration has recently published the results of a dedicated analysis of another set of three-years data [31, 49] leading to a better determination of ∆m(2)3` (which we refer to as DC17).”
• Prospects for beyond the Standard Model physics searches at the Deep Underground Neutrino Experiment (2020, background): “Of course, experiments that cannot distinguish between neutrinos and antineutrinos, such as atmospheric data from Super– Kamiokande [100], IceCube-DeepCore [101, 102] and ANTARES [103] were not included.”