期刊
PHYSICAL REVIEW D
卷 95, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.95.112002
关键词
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资金
- U.S. National Science Foundation-Office of Polar Programs
- U.S. National Science Foundation-Physics Division
- University of Wisconsin Alumni Research Foundation
- Grid Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin-Madison
- Open Science Grid (OSG) grid infrastructure
- U.S. Department of Energy
- National Energy Research Scientific Computing Center
- Louisiana Optical Network Initiative (LONI) grid computing resources
- Natural Sciences and Engineering Research Council of Canada
- WestGrid and Compute/Calcul Canada
- Swedish Research Council, Sweden
- Swedish Polar Research Secretariat, Sweden
- Swedish National Infrastructure for Computing (SNIC), Sweden
- Knut and Alice Wallenberg Foundation, Sweden
- German Ministry for Education and Research (BMBF), Germany
- Deutsche Forschungsgemeinschaft (DFG), Germany
- Helmholtz Alliance for Astroparticle Physics (HAP), Germany
- Research Department of Plasmas with Complex Interactions (Bochum), Germany
- Fund for Scientific Research (FNRS-FWO)
- FWO Odysseus programme
- Flanders Institute to encourage scientific and technological research in industry (IWT)
- Belgian Federal Science Policy Office (Belspo)
- University of Oxford, United Kingdom
- Marsden Fund, New Zealand
- Australian Research Council
- Japan Society for Promotion of Science (JSPS)
- Swiss National Science Foundation (SNSF), Switzerland
- National Research Foundation of Korea (NRF)
- Villum Fonden, Danish National Research Foundation (DNRF), Denmark
- Villum Fonden [00013161] Funding Source: researchfish
- STFC [ST/L000474/1, ST/P000770/1, ST/J000507/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien [1307472] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1505230, 1607644] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1403586] Funding Source: National Science Foundation
- Division Of Physics [1307472] Funding Source: National Science Foundation
We present a search for a light sterile neutrino using three years of atmospheric neutrino data from the DeepCore detector in the energy range of approximately 10-60 GeV. DeepCore is the low-energy subarray of the IceCube Neutrino Observatory. The standard three-neutrino paradigm can be probed by adding an additional light (Delta m(41)(2) similar to 1 eV(2)) sterile neutrino. Sterile neutrinos do not interact through the standard weak interaction and, therefore, cannot be directly detected. However, their mixing with the three active neutrino states leaves an imprint on the standard atmospheric neutrino oscillations for energies below 100 GeV. A search for such mixing via muon neutrino disappearance is presented here. The data are found to be consistent with the standard three-neutrino hypothesis. Therefore, we derive limits on the mixing matrix elements at the level of vertical bar U mu(4)vertical bar(2) < 0.11 and vertical bar U-tau 4 vertical bar(2) < 0.15 (90% C. L.) for the sterile neutrino mass splitting Delta m(41)(2) = 1.0 eV(2).
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