All-flavour search for neutrinos from dark matter annihilations in the Milky Way with IceCube/DeepCore

dc.contributor.authorIceCube Collaboration
dc.contributor.authorPalczewski, T.
dc.contributor.authorPepper, J.A.
dc.contributor.authorToale, P.A.
dc.contributor.authorWilliams, D.R.
dc.contributor.otherRWTH Aachen University
dc.contributor.otherUniversity of Adelaide
dc.contributor.otherUniversity of Alaska System
dc.contributor.otherUniversity of Alaska Anchorage
dc.contributor.otherClark Atlanta University
dc.contributor.otherUniversity System of Georgia
dc.contributor.otherGeorgia Institute of Technology
dc.contributor.otherSouthern University System
dc.contributor.otherSouthern University & A&M College
dc.contributor.otherUniversity of California System
dc.contributor.otherUniversity of California Berkeley
dc.contributor.otherUnited States Department of Energy (DOE)
dc.contributor.otherLawrence Berkeley National Laboratory
dc.contributor.otherHumboldt University of Berlin
dc.contributor.otherRuhr University Bochum
dc.contributor.otherUniversity of Bonn
dc.contributor.otherUniversite Libre de Bruxelles
dc.contributor.otherVrije Universiteit Brussel
dc.contributor.otherMassachusetts Institute of Technology (MIT)
dc.contributor.otherChiba University
dc.contributor.otherUniversity of Canterbury
dc.contributor.otherUniversity System of Maryland
dc.contributor.otherUniversity of Maryland College Park
dc.contributor.otherUniversity System of Ohio
dc.contributor.otherOhio State University
dc.contributor.otherUniversity of Copenhagen
dc.contributor.otherNiels Bohr Institute
dc.contributor.otherDortmund University of Technology
dc.contributor.otherMichigan State University
dc.contributor.otherUniversity of Alberta
dc.contributor.otherUniversity of Erlangen Nuremberg
dc.contributor.otherUniversity of Geneva
dc.contributor.otherGhent University
dc.contributor.otherUniversity of California Irvine
dc.contributor.otherUniversity of Kansas
dc.contributor.otherUniversity of Wisconsin System
dc.contributor.otherUniversity of Wisconsin Madison
dc.contributor.otherJohannes Gutenberg University of Mainz
dc.contributor.otherMarquette University
dc.contributor.otherUniversity of Mons
dc.contributor.otherNational Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
dc.contributor.otherTechnical University of Munich
dc.contributor.otherUniversity of Munster
dc.contributor.otherUniversity of Delaware
dc.contributor.otherYale University
dc.contributor.otherUniversity of Oxford
dc.contributor.otherDrexel University
dc.contributor.otherSouth Dakota School Mines & Technology
dc.contributor.otherOskar Klein Centre
dc.contributor.otherStockholm University
dc.contributor.otherState University of New York (SUNY) System
dc.contributor.otherState University of New York (SUNY) Stony Brook
dc.contributor.otherSungkyunkwan University (SKKU)
dc.contributor.otherUniversity of Toronto
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherPennsylvania Commonwealth System of Higher Education (PCSHE)
dc.contributor.otherPennsylvania State University
dc.contributor.otherPennsylvania State University - University Park
dc.contributor.otherUniversity of Rochester
dc.contributor.otherUppsala University
dc.contributor.otherUniversity of Wuppertal
dc.contributor.otherHelmholtz Association
dc.contributor.otherDeutsches Elektronen-Synchrotron (DESY)
dc.description.abstractWe 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, \(\langle \sigma_A v\rangle\), 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 \(\langle \sigma_A v\rangle\), reaching a level of 10⁻²³ cm³ 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.en_US
dc.identifier.citationAartsen, M. G., Abraham, K., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Archinger, M., Arguelles, C., Arlen, T. C., Auffenberg, J., Axani, S., Bai, X., Barwick, S. W., … Zoll, M. (2016). All-flavour search for neutrinos from dark matter annihilations in the Milky Way with IceCube/DeepCore. In The European Physical Journal C (Vol. 76, Issue 10). Springer Science and Business Media LLC.
dc.subjectPhysics, Particles & Fields
dc.titleAll-flavour search for neutrinos from dark matter annihilations in the Milky Way with IceCube/DeepCoreen_US
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