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High energy neutrinos from cosmic ray interactions in the Sun
Stockholm University.
Stockholm University.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics. (Theoretical high energy physics)ORCID iD: 0000-0003-0452-0671
Stockholm University.
2017 (English)Conference paper, Published paper (Other academic)
Abstract [en]

Cosmic rays hitting the outer parts of the Sun result in showers of high energy particles. The shower particles propagate through the solar atmosphere and interact further or decay. Among the shower particles are high energy neutrinos, after production these oscillate between flavours and interact with the solar material while propagating out of the Sun to the Earth. The result is a high energy neutrino flux at the Earth that may be detectable by modern neutrino detectors such as IceCube. Such a neutrino flux will furthermore act as a background in searches for neutrinos coming from annihilations of weakly interacting massive particles, often suggested to be the dark matter in the Universe. We perform an updated calculation of the solar atmospheric neutrino flux using the code MCEq for the cascade evolution in the solar atmosphere and WimpSim for the propagation of the neutrinos from the Sun to the detector on Earth, including full three-flavour treatment of neutrino oscillations and interactions in the Sun.

Place, publisher, year, edition, pages
2017.
National Category
Subatomic Physics Astronomy, Astrophysics and Cosmology
Research subject
Physics with specialization in Elementary Particle Physics
Identifiers
URN: urn:nbn:se:uu:diva-391450OAI: oai:DiVA.org:uu-391450DiVA, id: diva2:1345079
Conference
35th International Cosmic Ray Conference (ICRC 2017), July 12-20, 2017, Bexco, Busan, Korea
Available from: 2019-08-22 Created: 2019-08-22 Last updated: 2019-10-10Bibliographically approved

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