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2008-04-17 - Article/Dans un journal avec peer-review - Anglais - 3 page(s)

Kohnen Georges , IceCube Collaboration, "Erratum: Multiyear search for a diffuse flux of muon neutrinos with AMANDA-II " in Physical Review. D, Particles, Fields, Gravitation, and Cosmology, 77, 8, 089904(E)

  • Edition : American Physical Society, College Park (MD)
  • Codes CREF : Physique des particules élémentaires (DI1221), Astrophysique (DI1455)
  • Unités de recherche UMONS : Physique nucléaire et subnucléaire (S824)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
  • Centres UMONS : Algèbre, Géométrie et Interactions fondamentales (AGIF)

Abstract(s) :

(Anglais) A search for TeV-PeV muon neutrinos with AMANDA-II data collected between 2000 and 2003 established an upper limit of E290%C:L: < 7:4 108 GeV cm2 s1 sr1 on the diffuse ?ux of extraterrestrial muon neutrinos with a E2 spectrum between 16 TeV and 2.5 PeV. The upper limit calculation correctly included event simulations and remains as stated. However, the calculation of the detector’s ef?ciency, which is based only on simulations, was incorrectly tabulated in an appendix and shown in a ?gure. The values were approximately a factor of 10 too high, although the exact error varies in each bin. The correction has been applied in TablesI and II and Fig.1. The effective area is the equivalent area over which the detector would be 100% ef?cient for detecting neutrinos. The typical uncertainty on the effective area from simulation statistics is lowest between 105 GeV and 106 GeV(2%). The uncertainty increases to 6% at 104 GeV and 5% around 107 GeV. In the remainder of this document, the number of optical modules (OMs) triggered during an event is referred to as Nch and cos t refers to the cosine of the simulated (true) zenith angle of an event. The term angle-averaged indicates that results are averaged over t between 100 and 180. All other results reported in the paper, including the upper limit, remain unchanged.

Identifiants :
  • DOI : 10.1103/PhysRevD.77.089904