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Title: Search for neutrinos from decaying dark matter with IceCube: IceCube Collaboration

Journal Article · · European Physical Journal. C, Particles and Fields
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With the observation of high-energy astrophysical neutrinos by the IceCube Neutrino Observatory, interest has risen in models of PeV-mass decaying dark matter particles to explain the observed flux. We present two dedicated experimental analyses to test this hypothesis. One analysis uses 6 years of IceCube data focusing on muon neutrino ‘track’ events from the Northern Hemisphere, while the second analysis uses 2 years of ‘cascade’ events from the full sky. Known background components and the hypothetical flux from unstable dark matter are fitted to the experimental data. Since no significant excess is observed in either analysis, lower limits on the lifetime of dark matter particles are derived: we obtain the strongest constraint to date, excluding lifetimes shorter than 1028s at 90% CL for dark matter masses above 10TeV.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Australian Research Council (ARC); Deutsche Forschungsgemeinschaft (DFG); Japan Society for Promotion of Science (JSPS); National Research Foundation of Korea (NRF); National Science Foundation (NSF); Swiss National Science Foundation (SNSF); USDOE Office of Science (SC)
Contributing Organization:
IceCube Collaboration
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1542324
Journal Information:
European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 10 Vol. 78; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (9)

Neutrinophilic Dark Matter in the epoch of IceCube and Fermi-LAT journal December 2018
Handling the uncertainties in the Galactic Dark Matter distribution for particle Dark Matter searches journal March 2019
Can the ANITA anomalous events be due to new physics? journal July 2019
Limits on R -parity violation in high-scale supersymmetry journal August 2019
Dark matter interpretation of the ANITA anomalous events journal May 2019
Mini Review on Vector-Like Leptonic Dark Matter, Neutrino Mass, and Collider Signatures journal May 2019
Neutrinophilic Dark Matter in the epoch of IceCube and Fermi-LAT text January 2018
Can the ANITA anomalous events be due to new physics? text January 2019
Limits on $R$-parity Violation in High Scale Supersymmetry text January 2019

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