Potential Dark Matter Signals at Neutrino Telescopes
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....
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| Main Author: | |
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| Format: | Journal Article |
| Language: | English |
| Published: |
27-07-2019
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | 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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| DOI: | 10.48550/arxiv.1907.11926 |