Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/101385
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dc.contributor.author | Aartsen, M. | - |
dc.contributor.author | Ackermann, M. | - |
dc.contributor.author | Adams, J. | - |
dc.contributor.author | Aguilar, J. | - |
dc.contributor.author | Ahlers, M. | - |
dc.contributor.author | Ahrens, M. | - |
dc.contributor.author | Altmann, D. | - |
dc.contributor.author | Anderson, T. | - |
dc.contributor.author | Arguelles, C. | - |
dc.contributor.author | Arlen, T. | - |
dc.contributor.author | Auffenberg, J. | - |
dc.contributor.author | Bai, X. | - |
dc.contributor.author | Barwick, S. | - |
dc.contributor.author | Baum, V. | - |
dc.contributor.author | Beatty, J. | - |
dc.contributor.author | Becker Tjus, J. | - |
dc.contributor.author | Becker, K. | - |
dc.contributor.author | BenZvi, S. | - |
dc.contributor.author | Berghaus, P. | - |
dc.contributor.author | Berley, D. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | European Physical Journal C: Particles and Fields, 2015; 75(1):20-1-20-16 | - |
dc.identifier.issn | 1434-6044 | - |
dc.identifier.issn | 1434-6052 | - |
dc.identifier.uri | http://hdl.handle.net/2440/101385 | - |
dc.description.abstract | Dark matter which is bound in the Galactic halo might self-annihilate and produce a flux of stable final state particles, e.g. high energy neutrinos. These neutrinos can be detected with IceCube, a cubic-kilometer sized Cherenkov detector. Given IceCube’s large field of view, a characteristic anisotropy of the additional neutrino flux is expected. In this paper we describe a multipole method to search for such a large-scale anisotropy in IceCube data. This method uses the expansion coefficients of a multipole expansion of neutrino arrival directions and incorporates signal-specific weights for each expansion coefficient. We apply the technique to a high-purity muon neutrino sample from the Northern Hemisphere. The final result is compatible with the null-hypothesis. As no signal was observed, we present limits on the self-annihilation cross-section averaged over the relative velocity distribution ⟨σΑv⟩ down to 1.9×10¯²³cm³s¯¹ for a dark matter particle mass of 700–1,000 GeV and direct annihilation into νν¯. The resulting exclusion limits come close to exclusion limits from γ-ray experiments, that focus on the outer Galactic halo, for high dark matter masses of a few TeV and hard annihilation channels. | - |
dc.description.statementofresponsibility | M. G. Aartsen ... G. C. Hill ... S. Robertson ... B. J. Whelan ... et al. (IceCube Collaboration) | - |
dc.language.iso | en | - |
dc.publisher | Springer Berlin Heidelberg | - |
dc.rights | © The Author(s) 2015. This article is published with open access at Springerlink.com | - |
dc.source.uri | http://dx.doi.org/10.1140/epjc/s10052-014-3224-5 | - |
dc.title | Multipole analysis of IceCube data to search for dark matter accumulated in the Galactic halo | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1140/epjc/s10052-014-3224-5 | - |
dc.relation.grant | ARC | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 3 Chemistry and Physics publications |
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