Signature of sterile species in atmospheric neutrino data at neutrino telescopes
arXiv:0709.1937 · doi:10.1088/1126-6708/2007/12/014
Abstract
The MiniBooNE results have still not been able to comprehensively rule out the oscillation interpretation of the LSND experiment. So far the so-called short baseline experiments with energy in the MeV range and baseline of few meters have been probing the existence of sterile neutrinos. We show how signatures of these extra sterile states could be obtained in TeV energy range atmospheric neutrinos travelling distances of thousands of kilometers. Atmospheric neutrinos in the TeV range would be detected by the upcoming neutrino telescopes. Of course vacuum oscillations of these neutrinos would be very small. However, we show that resonant matter effects inside the Earth could enhance these very tiny oscillations into near-maximal transitions, which should be hard to miss. We show that imprint of sterile neutrinos could be unambiguously obtained in this high energy atmospheric neutrino event sample. Not only would neutrino telescopes tell the presence of sterile neutrinos, it should also be possible for them to distinguish between the different possible mass and mixing scenarios with additional sterile states.
26 pages, 11 figures, Version to appear in JHEP
References in corpus (8)
- Phenomenology with Massive Neutrinos
- Sterile neutrino oscillations after first MiniBooNE results
- Physics Reach of High-Energy and High-Statistics IceCube Atmospheric Neutrino Data
- Turbulent Supernova Shock Waves and the Sterile Neutrino Signature in Megaton Water Detectors
- MiniBooNE Results and Neutrino Schemes with 2 sterile Neutrinos: Possible Mass Orderings and Observables related to Neutrino Masses
- Signatures of heavy sterile neutrinos at long baseline experiments
- Confusing Sterile Neutrinos with Deviation from Tribimaximal Mixing at Neutrino Telescopes
- The (3+2) Neutrino Mass Spectrum and Double Chooz