First search for dark matter annihilations in the Earth with the IceCube detector

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 Wurzburg
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.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.contributor.otherUniversity of Tokyo
dc.description.abstractWe present the results of the first IceCube search for dark matter annihilation in the center of the Earth. Weakly interacting massive particles (WIMPs), candidates for dark matter, can scatter off nuclei inside the Earth and fall below its escape velocity. Over time the captured WIMPs will be accumulated and may eventually self-annihilate. Among the annihilation products only neutrinos can escape from the center of the Earth. Large-scale neutrino telescopes, such as the cubic kilometer IceCube Neutrino Observatory located at the South Pole, can be used to search for such neutrino fluxes. Data from 327 days of detector livetime during 2011/2012 were analyzed. No excess beyond the expected background from atmospheric neutrinos was detected. The derived upper limits on the annihilation rate of WIMPs in the Earth (\(\Gamma_A\) = 1.12 x 10¹⁴ s⁻¹ for WIMP masses of 50 GeV annihilating into tau leptons) and the resulting muon flux are an order of magnitude stronger than the limits of the last analysis performed with data from IceCube's predecessor AMANDA. The limits can be translated in terms of a spin-independent WIMP-nucleon cross section. For a WIMP mass of 50 GeV this analysis results in the most restrictive limits achieved with IceCube data.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., Argüelles, C., Auffenberg, J., Axani, S., Bai, X., Barwick, S. W., Baum, V., … Zoll, M. (2017). First search for dark matter annihilations in the Earth with the IceCube detector. In The European Physical Journal C (Vol. 77, Issue 2). Springer Science and Business Media LLC.
dc.subjectPhysics, Particles & Fields
dc.titleFirst search for dark matter annihilations in the Earth with the IceCube detectoren_US
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