Search for neutrino-induced particle showers with IceCube-40

Understand

We report on the search for neutrino-induced particle-showers, so-called cascades, in the IceCube-40 detector.

• The data for this search was collected between April 2008 and May 2009 when the first 40 IceCube strings were deployed and operational.
• Three complementary searches were performed, each optimized for different energy regimes.
• The analysis with the lowest energy threshold (2 TeV) targeted atmospheric neutrinos.