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Title: Search for a light sterile neutrino with 7.5 years of IceCube DeepCore data

Journal Article · · Physical Review. D.
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  1. Loyola University Chicago
  2. Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany
  3. University of Canterbury
  4. University of Wisconsin—Madison
  5. Université Libre de Bruxelles
  6. University of Copenhagen
  7. TU Dortmund University
  8. University of Delaware
  9. Marquette University
  10. Harvard University
  11. University of Utah
  12. RWTH Aachen University
  13. South Dakota School of Mines and Technology
  14. University of California
  15. Technische Universität München
  16. Ohio State University; Ohio State University
  17. Ruhr-Universität Bochum
  18. Uppsala University
  19. University of Rochester
  20. University of Maryland
  21. Università Degli Studi di Padova
  22. University of Kansas
  23. University of Alabama
  24. Institute for Astroparticle Physics
  25. University of Mainz
  26. Georgia Institute of Technology
  27. University of Adelaide
  28. Drexel University
  29. University of Nevada; University of Nevada
  30. Stony Brook University
  31. Sungkyunkwan University; Sungkyunkwan University
  32. Massachusetts Institute of Technology
  33. Pennsylvania State University; Pennsylvania State University
  34. Vrije Universiteit Brussel (VUB)
  35. Université catholique de Louvain
  36. Michigan State University
  37. Westfälische Wilhelms-Universität Münster
  38. Friedrich-Alexander-Universität Erlangen-Nürnberg
  39. University of Alberta
  40. University of Wuppertal
  41. Institute for Astroparticle Physics; Institute of Experimental Particle Physics
  42. Chiba University
  43. Southern University
  44. Institute of Physics
  45. Humboldt-Universität zu Berlin
  46. Stockholm University
  47. Pennsylvania State University
  48. Harvard University; Université catholique de Louvain
  49. Lawrence Berkeley National Laboratory
  50. Friedrich-Alexander-Universität Erlangen-Nürnberg; Uppsala University
  51. Chung-Ang University
  52. Queen’s University
  53. TU Dortmund University; Institute of Physics
  54. Clark-Atlanta University
  55. University of Texas at Arlington
  56. Sungkyunkwan University
  57. University of California; Lawrence Berkeley National Laboratory
  58. Humboldt-Universität zu Berlin; Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany
  59. Université de Genève
  60. Deutsches Elektronen-Synchrotron DESY
  61. University of Wisconsin—Madison; Università Degli Studi di Padova
  62. Columbia University
  63. Yale University
  64. Mercer University
  65. Ohio State University
  66. University of Gent
  67. University of Alaska Anchorage
  68. University of Utah; Sungkyunkwan University
  69. Institute of Experimental Particle Physics
  70. University of Oxford
  71. Institute for Astroparticle Physics; University of Delaware
  72. University of Wisconsin
+ Show Author Affiliations

We present a search for an eV-scale sterile neutrino using 7.5 years of data from the IceCube DeepCore detector. The analysis uses a sample of 21,914 events with energies between 5 and 150 GeV to search for sterile neutrinos through atmospheric muon neutrino disappearance. Improvements in event selection and treatment of systematic uncertainties provide greater statistical power compared to previous DeepCore sterile neutrino searches. Our results are compatible with the absence of mixing between active and sterile neutrino states, and we place constraints on the mixing matrix elements |Uμ⁢4|2 < 0.0534 and |U$$\tau$$⁢4|2 < 0.0574 at 90% CL under the assumption that Δ⁢m$$^{2}_{41}$$ ≥ 1 eV2. These null results add to the growing tension between anomalous appearance results and constraints from disappearance searches in the 3+1 sterile neutrino landscape.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
IceCube Collaboration
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2474061
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 7 Vol. 110; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (42)

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Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment journal October 2016
Search for Sterile Neutrinos in MINOS and MINOS+ Using a Two-Detector Fit journal March 2019
eV-Scale Sterile Neutrino Search Using Eight Years of Atmospheric Muon Neutrino Data from the IceCube Neutrino Observatory journal September 2020
Results from the Baksan Experiment on Sterile Transitions (BEST) journal June 2022
Search for an Excess of Electron Neutrino Interactions in MicroBooNE Using Multiple Final-State Topologies journal June 2022
Atmospheric muons measured with the KM3NeT detectors in comparison with updated numeric predictions journal July 2024
Remarks on the Unified Model of Elementary Particles journal November 1962
Measurement of atmospheric neutrino oscillations and search for sterile neutrino mixing with IceCube DeepCore null January 2018
A model independent parametrization of the optical properties of the refrozen IceCube drill holes conference July 2023

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Neutrino detection
Neutrino oscillations
Sterile neutrinos