2010

The first search for extremely-high energy cosmogenic neutrinos with the IceCube Neutrino Observatory

IceCube Collaboration, Abbasi, R., Abdou, Y. et al.

Understand

We report on the results of the search for extremely-high energy (EHE) neutrinos with energies above $10^7$ GeV obtained with the partially ($\sim$30%) constructed IceCube in 2007.

  • From the absence of signal events in the sample of 242.1 days of effective livetime, we derive a 90% C.L.
  • model independent differential upper limit based on the number of signal events per energy decade at $E^2 \phi_{\nu_e+\nu_\mu+\nu_\tau}\simeq 1.4 \times 10^{-6}$ GeV cm$^{-2}$ sec$^{-1}$ sr$^{-1}$ for neutrinos in the energy range from $3\times10^7$ to $3\times10^9$ GeV.

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