Geometric compatibility of IceCube TeV-PeV neutrino excess and its galactic dark matter origin
Journal Article
·
· Journal of High Energy Physics (Online)
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; Univ. of Michigan, Ann Arbor, MI (United States). Michigan Center for Theoretical Physics
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; Wisconsin IceCube Particle Astrophysics Center, Madison, WI (United States)
Here, we perform a geometric analysis for the sky map of the IceCube TeV-PeV neutrino excess and test its compatibility with the sky map of decaying dark matter signals in our galaxy. Furthermore, we have found that a galactic decaying dark matter component in general improve the goodness of the fit of our model, although the pure isotropic hypothesis has a better fit than the pure dark matter one. Finally, we also consider several representative decaying dark matter, which can provide a good t to the observed spectrum at IceCube with a dark matter lifetime of around 12 orders of magnitude longer than the age of the universe.
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- FG02-95ER40896; FG02-95ER40899
- OSTI ID:
- 1327294
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2016, Issue 1; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 44 works
Citation information provided by
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