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Ultra-high energy neutrino events at IceCube: Implications for the Standard Model and Beyond

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If you have a question about this talk, please contact Damien George.

The recent observation of two PeV events at IceCube, followed by an additional 26 events between 20 - 300 TeV, has spurred a lot of interest on its origin and underlying spectral shape. Several astrophysical sources have been considered, and from a particle physics point of view, many exotic phenomena have been invoked to explain these events. Assuming a simple astrophysical power law spectrum, we scrutinize the Standard Model (SM) expectations carefully, including the theoretical uncertainties, and find that the SM neutrino-nucleon interactions are sufficient to account for all the observed events so far. However, with more statistics, this could provide a unique test of the SM up to the highest energies ever observed in Nature, and might lead to important clues to New Physics.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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