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Journal article
Observation of seasonal variations of the flux of high-energy atmospheric neutrinos with IceCube
The European physical journal. C, Particles and fields, v 83(9), 777
04 Sep 2023
Abstract
Atmospheric muon neutrinos are produced by meson decays in cosmic-ray-induced air showers. The flux depends on meteorological quantities such as the air temperature, which affects the density of air. Competition between decay and re-interaction of those mesons in the first particle production generations gives rise to a higher neutrino flux when the air density in the stratosphere is lower, corresponding to a higher temperature. A measurement of a temperature dependence of the atmospheric ?mu, flux provides a novel method for constraining hadronic interaction models of air showers. It is particularly sensitive to the production of kaons. Studying this temperature dependence for the first time requires a large sample of high-energy neutrinos as well as a detailed understanding of atmospheric properties. We report the significant (> 10 s) observation of a correlation between the rate of more than 260,000 neutrinos, detected by IceCube between 2012 and 2018, and atmospheric tem-peratures of the stratosphere, measured by the Atmospheric Infrared Sounder (AIRS) instrument aboard NASA's AQUA satellite. For the observed 10% seasonal change of effective atmospheric temperature we measure a 3.5(3)% change in the muon neutrino flux. This observed correlation deviates by about 2-3 standard deviations from the expected correla-tion of 4.3% as obtained from theoretical predictions under the assumption of various hadronic interaction models.
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Details
- Title
- Observation of seasonal variations of the flux of high-energy atmospheric neutrinos with IceCube
- Creators
- IceCube Collaboration (Collaboration)Kunal Deoskar - Oskar Klein-centrum för kosmopartikelfysik (OKC)Chad Finley - Oskar Klein-centrum för kosmopartikelfysik (OKC)Attila Hidvegi - Stockholm UniversityKlas Hultqvist - Oskar Klein-centrum för kosmopartikelfysik (OKC)Matti Jansson - Stockholm UniversityChristian Walck - Oskar Klein-centrum för kosmopartikelfysik (OKC)Michael A Campana - Drexel University, PhysicsXinyue Kang - Drexel University, PhysicsMichael G Kovacevich - Drexel University, PhysicsNaoko Kurahashi Neilson - Drexel University, PhysicsChristina E Love - Drexel University, PhysicsMark Richman - Drexel UniversityStephen James Sclafani - Drexel University, Physics
- Publication Details
- The European physical journal. C, Particles and fields, v 83(9), 777
- Publisher
- Springer Nature
- Number of pages
- 16
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:001063424400001
- Scopus ID
- 2-s2.0-85169691648
- Other Identifier
- 991021876912204721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Particles & Fields