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All-Energy Search for Solar Atmospheric Neutrinos with IceCube

  • Icecube Collaboration
  • University of Wisconsin-Madison
  • Loyola University Chicago
  • German Electron Synchrotron
  • University of Canterbury
  • Institute of Physics Bhubaneswar
  • Université libre de Bruxelles
  • University of Copenhagen
  • TU Dortmund University
  • University of Delaware
  • Marquette University
  • Friedrich-Alexander University Erlangen-Nürnberg
  • Harvard University
  • University of Utah
  • South Dakota School of Mines & Technology
  • University of California at Irvine
  • University of California at Berkeley
  • Ohio State University
  • Ruhr University Bochum
  • Chalmers University of Technology
  • Uppsala University
  • Technical University of Munich
  • RWTH Aachen University
  • University of Rochester
  • University of Maryland, College Park
  • University of Padua
  • University of Kansas
  • Karlsruhe Institute of Technology
  • Johannes Gutenberg University Mainz
  • Georgia Institute of Technology
  • University of Adelaide
  • University of Münster
  • Drexel University

Research output: Contribution to journalConference articlepeer-review

Abstract

The interaction of cosmic rays with the solar atmosphere generates a secondary flux of mesons that decay into photons and neutrinos – the so-called solar atmospheric flux. Although the gamma-ray component of this flux has been observed in Fermi-LAT and HAWC Observatory data, the neutrino component remains undetected. The energy distribution of those neutrinos follows a soft spectrum that extends from the GeV to the multi-TeV range, making large Cherenkov neutrino telescopes a suitable for probing this flux. In this contribution, we will discuss current progress of a search for the solar neutrino flux by the IceCube Neutrino Observatory using all available data since 2011. Compared to the previous analysis which considered only high-energy muon neutrino tracks, we will additionally consider events produced by all flavors of neutrinos down to GeV-scale energies. These new events should improve our analysis sensitivity since the flux falls quickly with energy. Determining the magnitude of the neutrino flux is essential, since it is an irreducible background to indirect solar dark matter searches.

Original languageEnglish
Article number1116
JournalProceedings of Science
Volume444
StatePublished - Sep 27 2024
Event38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan
Duration: Jul 26 2023Aug 3 2023

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