2003/03/11 by J. Ahrens, J. Ahrens et al., X. Bai +98 · 4 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic ray #Extraterrestrial life #Flux (metallurgy) #Measurements of neutrino speed #Muon #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Range (aeronautics) #Solar neutrino #Solar neutrino problem #Spectral line #astro-ph
paper · pdf · doi:10.1103/physrevlett.90.251101
published as Phys.Rev.Lett.90:251101,2003 · Submitted to Physical Review Letters
arxiv created 2003/03/11 · openalex publication_date 2003/06/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Data from the AMANDA-B10 detector taken during the austral winter of 1997 have been searched for a diffuse flux of high energy extraterrestrial muon neutrinos. This search yielded no excess events above those expected from background atmospheric neutrinos, leading to upper limits on the extraterrestrial neutrino flux measured at the earth. For an assumed E^\ensuremath-2 spectrum, a 90% classical confidence level upper limit has been placed at a level E2\ensuremathΦ(E)=8.4\ifmmode×\else\texttimes\fi10^\ensuremath-7 cm^\ensuremath-2 s^\ensuremath-1 sr^\ensuremath-1 GeV (for a predominant neutrino energy range 6--1000 TeV), which is the most restrictive bound placed by any neutrino detector. Some specific predicted model spectra are excluded. Interpreting these limits in terms of the flux from a cosmological distributions of sources requires the incorporation of neutrino oscillations, typically weakening the limits by a factor of 2.