Today, IceCube presented results from a search for high-energy neutrinos at the IPA symposium in Madison. After last year's discovery of two ~1 PeV neutrino cascades (Ernie and Bert) in two years of data (IC79+IC86), an extended search to lower energies in the same data revealed 26 more events with deposited energies above 30 TeV. The expected atmospheric background for the combined 28 events amounts to 12.1. Combining the 2.8 sigma excess of last year's analysis of Ernie and Bert (arXiv:1304.5356) with the results from the extended search yields a combined deviation from atmospheric background expectations of 4.3 sigma (note that for this Ernie and Bert were excluded from the extended search). The energy distribution of the observed events is compatible with the atmospheric background plus an E^-2 astrophysical diffuse flux with a cut-off at about 2 PeV. A clustering of events is not observed.

For more information, please have a look at the following talks: the first one

https://events.icecube.wisc.edu/contributionDisplay.py?contribId=64&confId=46

concentrates on the technical issues of the extended analysis, whereas the other two

https://events.icecube.wisc.edu/getFile.py/access?contribId=76&sessionId=41&resId=0&materialId=slides&confId=46 https://events.icecube.wisc.edu/getFile.py/access?contribId=70&sessionId=14&resId=0&materialId=slides&confId=46

discuss the results in more details. A paper is currently in preparation.