CERN Accelerating science

Article
Report number arXiv:1606.00209
Title All-flavour Search for Neutrinos from Dark Matter Annihilations in the Milky Way with IceCube/DeepCore
Author(s) IceCube collaboration  Show all 321 authors
Publication 2016
Imprint 01 Jun 2016
Number of pages 15
Note Comments: 15 pages, 8 figures. Minor text changes. Matches version accepted by EPJC
In: Eur. Phys. J. C 76 (2016) 531
DOI 10.1140/epjc/s10052-016-4375-3
Subject category Astrophysics and Astronomy
Abstract We present the first IceCube search for a signal of dark matter annihilations in the Milky Way using all-flavour neutrino-induced particle cascades. The analysis focuses on the DeepCore sub-detector of IceCube, and uses the surrounding IceCube strings as a veto region in order to select starting events in the DeepCore volume. We use 329 live-days of data from IceCube operating in its 86-string configuration during 2011-2012. No neutrino excess is found, the final result being compatible with the background-only hypothesis. From this null result, we derive upper limits on the velocity-averaged self-annihilation cross-section, < \sigma_A v >, for dark matter candidate masses ranging from 30 GeV up to 10 TeV, assuming both a cuspy and a flat-cored dark matter halo profile. For dark matter masses between 200 GeV and 10 TeV, the results improve on all previous IceCube results on < \sigma_A v >, reaching a level of 10^{-23} cm^3 s^-1, depending on the annihilation channel assumed, for a cusped NFW profile. The analysis demonstrates that all-flavour searches are competitive with muon channel searches despite the intrinsically worse angular resolution of cascades compared to muon tracks in IceCube.
Copyright/License arXiv nonexclusive-distrib. 1.0
publication: © 2016-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³



Corresponding record in: Inspire


 Záznam vytvorený 2016-06-02, zmenený 2022-08-10


Plný text:
Nahraj plný textPDF
Springer Open Access article:
Nahraj plný textPDF
External link:
Nahraj plný textPreprint
  • Send to ScienceWise.info