Journal article
Search for a light sterile neutrino with 7.5 years of IceCube DeepCore data
Physical review. D, Vol.110(7), 072007
2024
DOI: 10.1103/PhysRevD.110.072007
Abstract
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 |𝑈 𝜇4 | 2 <0.0534 and |𝑈 𝜏4 | 2 <0.0574 at 90% CL under the assumption that <img src="http://www.diva-portal.org/cgi-bin/mimetex.cgi?%5CDelta%20%5Cmathit%7Bm%7D%20%5E%7B2%7D_%7B41%7D%5Cgeq%201%5C,eV%5E2" data-classname="equation" data-title="" />. These null results add to the growing tension between anomalous appearance results and constraints from disappearance searches in the 3+1 sterile neutrino landscape.
Details
- Title: Subtitle
- Search for a light sterile neutrino with 7.5 years of IceCube DeepCore data
- Creators
- R. Abbasi - Loyola University ChicagoM. Ackermann - Deutsches Elektronen-Synchrotron DESYJ. Adams - University of CanterburyS. K. Agarwalla - University of Wisconsin–MadisonJ. A. Aguilar - Université Libre de BruxellesM. Ahlers - University of CopenhagenJ M Alameddine - TU Dortmund UniversityN. M. Amin - University of DelawareIceCube CollaborationMatheus Hostert (Contributor) - Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Vol.110(7), 072007
- DOI
- 10.1103/PhysRevD.110.072007
- ISSN
- 2470-0029
- eISSN
- 2470-0029
- Language
- English
- Date published
- 2024
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984946629302771
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