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Reference: IceCube Collaboration, Aartsen, MG, Ackermann, M et al., (2017). Search for annihilating dark matter in the Sun with 3 years of IceCube data. European Physical Journal C: Particles and Fields, 2017 (77), Article: 146.Citable link to this page:

 

Search for annihilating dark matter in the Sun with 3 years of IceCube data

Abstract: We present results from an analysis looking for dark matter annihilation inthe Sun with the IceCube neutrino telescope. Gravitationally trapped darkmatter in the Sun's core can annihilate into Standard Model particles makingthe Sun a source of GeV neutrinos. IceCube is able to detect neutrinos withenergies >100 GeV while its low-energy infill array DeepCore extends this to>10 GeV. This analysis uses data gathered in the austral winters between May2011 and May 2014, corresponding to 532 days of livetime when the Sun, beingbelow the horizon, is a source of up-going neutrino events, easiest todiscriminate against the dominant background of atmospheric muons. Thesensitivity is a factor of two to four better than previous searches due toadditional statistics and improved analysis methods involving better backgroundrejection and reconstructions. The resultant upper limits on the spin-dependentdark matter-proton scattering cross section reach down to $1.46\times10^{-5}$pb for a dark matter particle of mass 500 GeV annihilating exclusively into$\tau^{+}\tau^{-}$ particles. These are currently the most stringent limits onthe spin-dependent dark matter-proton scattering cross section for WIMP massesabove 50 GeV.

Publication status:PublishedPeer Review status:Peer reviewedVersion:Publisher's versionNotes:Copyright © 2017 The Authors.This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Bibliographic Details

Publisher: Springer Berlin Heidelberg

Publisher Website: https://www.springer.com/

Journal: European Physical Journal C: Particles and Fieldssee more from them

Publication Website: https://link.springer.com/journal/10052

Volume: 2017

Issue: 77

Extent: Article: 146

Issue Date: 2017

pages:Article: 146Identifiers

Doi: https://doi.org/10.1140/epjc/s10052-017-4689-9

Uuid: uuid:a2a6a6c4-4463-4360-8bd9-a0ff6e137b25

Urn: uri:a2a6a6c4-4463-4360-8bd9-a0ff6e137b25

Pubs-id: pubs:670948

Issn: 1434-6044

Eissn: 1434-6052 Item Description

Type: journal-article;

Version: Publisher's versionKeywords: astro-ph.HE astro-ph.HE hep-ex

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Autor: IceCube Collaboration - - - Aartsen, MG - - - Ackermann, M - - - Adams, J - - - Sarkar, S - Oxford, MPLS, Physics, Theoretical Ph

Fuente: https://ora.ox.ac.uk/objects/uuid:a2a6a6c4-4463-4360-8bd9-a0ff6e137b25



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