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Title: Geometric compatibility of IceCube TeV-PeV neutrino excess and its galactic dark matter origin

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.
Authors:
 [1] ;  [2] ;  [3]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics
  2. Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; Univ. of Michigan, Ann Arbor, MI (United States). Michigan Center for Theoretical Physics
  3. Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; Wisconsin IceCube Particle Astrophysics Center, Madison, WI (United States)
Publication Date:
Grant/Contract Number:
FG02-95ER40896; FG02-95ER40899
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 1; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS; neutrino detectors and telescopes
OSTI Identifier:
1327294