2007/06/30 by Ram Lal Awasthi, Sandhya Choubey
Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic neutrino background #Flux (metallurgy) #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino astronomy #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Physics #Solar neutrino #Solar neutrino problem #Sterile neutrino #astro-ph #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.76.113002
published as Phys.Rev.D76:113002,2007 · 22 pages, version to appear in Phys. Rev. D
arxiv created 2007/10/17 · openalex publication_date 2007/12/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We expound on the impact of extra sterile species on the ultra high energy neutrino fluxes in neutrino telescopes. We use three types of well-known flux ratios and compare the values of these flux ratios in the presence of sterile neutrinos, with those predicted by deviation from the tribimaximal mixing scheme. We show that in the upcoming neutrino telescopes, it is easy to confuse the signature of sterile neutrinos with that of the deviation from tribimaximal mixing. We also show that if the measured flux ratios acquire a value well outside the range predicted by the standard scenario with three active neutrinos only, it might be possible to tell the presence of extra sterile neutrinos by observing ultra high energy neutrinos in future neutrino telescopes.