Potential Dark Matter Signals at Neutrino Telescopes
July 22, 2019
Recent analyses of the diffuse TeV-PeV neutrino flux highlight a tension between different Ice- Cube data samples that strongly suggests a two-component scenario rather than a single steep power-law flux. Such a tension is further strengthened once the latest ANTARES data are also taken into account. Remarkably, both experiments show an excess in the same energy range (40- 200 TeV), whose origin could intriguingly be related to dark matter. In this paper, I discuss the combined analysis of IceCube and ANTARES data, highlighting the presence of the low-energy excess. Moreover, I update the results of the angular analysis for potential dark matter signals, previously obtained with the 4-year High-Energy Starting Events data. In particular, I statistically compare the distribution of the arrival directions of 6-year IceCube events belonging to the low- energy excess with the angular distributions expected in case of different dark matter neutrino signals.
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