Searches for sterile neutrinos with IceCube DeepCore

Soebur Razzaque, A. Yu Smirnov

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

We show that study of the atmospheric neutrinos in the 10-100 GeV energy range by DeepCore subarray of the IceCube Neutrino Observatory can substantially constrain the mixing of sterile neutrinos of mass ∼1eV with active neutrinos. In the scheme with one sterile neutrino we calculate ν μ and ν ̄μ oscillation probabilities as well as zenith angle distributions of νμCC (charge current) events in different energy intervals in DeepCore. The distributions depend on the mass hierarchy of active neutrinos. Therefore, in principle, the hierarchy can be identified, if ν s exists. After a few years of exposure the DeepCore data will allow us to exclude the mixing of |U μ4|2≥0. 02 indicated by the LSND/MiniBooNE results. Combination of the DeepCore and high-energy IceCube data will further improve sensitivity to ν s mixing parameters.

Original languageEnglish
Article number093010
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number9
DOIs
Publication statusPublished - 18 May 2012
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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