• DOI:10.1103/PhysRevD.76.042008 10.1103/PhysRevD.77.089904
• Corpus ID: 36876150

Multi-year search for a diffuse flxu of muon neutrinos with AMANDA-II

@article{Achterberg2007MultiyearSF,
  title={Multi-year search for a diffuse flxu of muon neutrinos with AMANDA-II},
  author={IceCube Collaboration A. Achterberg and et al.},
  journal={Lawrence Berkeley National Laboratory},
  year={2007},
  volume={76}
}

• I. Achterberg, E. al.
• Published 9 May 2007
• Physics
• Lawrence Berkeley National Laboratory

A search for TeV-PeV muon neutrinos from unresolved sources was performed on AMANDA-II data collected between 2000 and 2003 with an equivalent livetime of 807 days. This diffuse analysis sought to find an extraterrestrial neutrino flux from sources with non-thermal components. The signal is expected to have a harder spectrum than the atmospheric muon and neutrino backgrounds. Since no excess of events was seen in the data over the expected background, an upper limit of E{sup 2}{Phi}{sub 90%C.L.} < 7.4 x 10{sup -8} GeV cm{sup -2} s{sup -1} sr{sup -1} is placed on the diffuse flux of muon neutrinos with a {Phi} {proportional_to} E{sup -2} spectrum in the energy range 16 TeV to 2.5 PeV. This is currently the most sensitive {Phi} {proportional_to} E{sup -2} diffuse astrophysical neutrino limit. We also set upper limits for astrophysical and prompt neutrino models, all of which have spectra different than {Phi} {proportional_to} E{sup -2}.