Search for neutrinos from decaying dark matter with IceCube: IceCube Collaboration

M.G. Aartsen; M. Ackermann; J. Adams; J.A. Aguilar; Markus Tobias Ahlers; M. Ahrens; I. Al Samarai; D. Altmann; K. Andeen; T. Anderson; I Ansseau; G. Anton; C. Arguelles; J. Auffenberg; S. Axani; P. Backes; H. Bagherpour; X. Bai; J.P. Barron; S.W. Barwick; V. Baum; R. Bay; J.J. Beatty; S. E. Tjus; Etienne Bourbeau; Morten Ankersen Medici; Michael James Larson; Thomas Simon Stuttard; D. Jason Koskinen; M Rameez; Subir Sarkar

doi:10.1140/epjc/s10052-018-6273-3

Search for neutrinos from decaying dark matter with IceCube: IceCube Collaboration

M.G. Aartsen, M. Ackermann, J. Adams, J.A. Aguilar, Markus Tobias Ahlers, M. Ahrens, I. Al Samarai, D. Altmann, K. Andeen, T. Anderson, I Ansseau, G. Anton, C. Arguelles, J. Auffenberg, S. Axani, P. Backes, H. Bagherpour, X. Bai, J.P. Barron, S.W. BarwickV. Baum, R. Bay, J.J. Beatty, S. E. Tjus, Etienne Bourbeau, Morten Ankersen Medici, Michael James Larson, Thomas Simon Stuttard, D. Jason Koskinen, M Rameez, Subir Sarkar

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Abstract

With the observation of high-energy astrophysical neutrinos by the IceCube Neutrino Observatory, interest has risen in models of PeV-mass decaying dark matter particles to explain the observed flux. We present two dedicated experimental analyses to test this hypothesis. One analysis uses 6 years of IceCube data focusing on muon neutrino ‘track’ events from the Northern Hemisphere, while the second analysis uses 2 years of ‘cascade’ events from the full sky. Known background components and the hypothetical flux from unstable dark matter are fitted to the experimental data. Since no significant excess is observed in either analysis, lower limits on the lifetime of dark matter particles are derived: we obtain the strongest constraint to date, excluding lifetimes shorter than 1028s at 90% CL for dark matter masses above 10TeV.

Originalsprog	Engelsk
Artikelnummer	831
Tidsskrift	European Physical Journal C
Vol/bind	78
Udgave nummer	10
Antal sider	9
ISSN	1434-6044
DOI	https://doi.org/10.1140/epjc/s10052-018-6273-3
Status	Udgivet - 1 okt. 2018

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10.1140/epjc/s10052-018-6273-3Licens: CC BY

Aartsen2018_Article_SearchForNeutrinosFromDecayingForlagets udgivne version, 988 KBLicens: CC BY

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Aartsen, M. G., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M. T., Ahrens, M., Al Samarai, I., Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Arguelles, C., Auffenberg, J., Axani, S., Backes, P., Bagherpour, H., Bai, X., Barron, J. P., ... Sarkar, S. (2018). Search for neutrinos from decaying dark matter with IceCube: IceCube Collaboration. European Physical Journal C, 78(10), Artikel 831. https://doi.org/10.1140/epjc/s10052-018-6273-3

Aartsen, MG, Ackermann, M, Adams, J, Aguilar, JA, Ahlers, MT, Ahrens, M, Al Samarai, I, Altmann, D, Andeen, K, Anderson, T, Ansseau, I, Anton, G, Arguelles, C, Auffenberg, J, Axani, S, Backes, P, Bagherpour, H, Bai, X, Barron, JP, Barwick, SW, Baum, V, Bay, R, Beatty, JJ, Tjus, SE, Bourbeau, E, Medici, MA, Larson, MJ, Stuttard, TS, Koskinen, DJ, Rameez, M & Sarkar, S 2018, 'Search for neutrinos from decaying dark matter with IceCube: IceCube Collaboration', European Physical Journal C, bind 78, nr. 10, 831. https://doi.org/10.1140/epjc/s10052-018-6273-3

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title = "Search for neutrinos from decaying dark matter with IceCube: IceCube Collaboration",

abstract = "With the observation of high-energy astrophysical neutrinos by the IceCube Neutrino Observatory, interest has risen in models of PeV-mass decaying dark matter particles to explain the observed flux. We present two dedicated experimental analyses to test this hypothesis. One analysis uses 6 years of IceCube data focusing on muon neutrino {\textquoteleft}track{\textquoteright} events from the Northern Hemisphere, while the second analysis uses 2 years of {\textquoteleft}cascade{\textquoteright} events from the full sky. Known background components and the hypothetical flux from unstable dark matter are fitted to the experimental data. Since no significant excess is observed in either analysis, lower limits on the lifetime of dark matter particles are derived: we obtain the strongest constraint to date, excluding lifetimes shorter than 1028s at 90% CL for dark matter masses above 10TeV.",

author = "M.G. Aartsen and M. Ackermann and J. Adams and J.A. Aguilar and Ahlers, {Markus Tobias} and M. Ahrens and {Al Samarai}, I. and D. Altmann and K. Andeen and T. Anderson and I Ansseau and G. Anton and C. Arguelles and J. Auffenberg and S. Axani and P. Backes and H. Bagherpour and X. Bai and J.P. Barron and S.W. Barwick and V. Baum and R. Bay and J.J. Beatty and Tjus, {S. E.} and Etienne Bourbeau and Medici, {Morten Ankersen} and Larson, {Michael James} and Stuttard, {Thomas Simon} and Koskinen, {D. Jason} and M Rameez and Subir Sarkar",

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T1 - Search for neutrinos from decaying dark matter with IceCube

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AU - Aartsen, M.G.

AU - Ackermann, M.

AU - Adams, J.

AU - Aguilar, J.A.

AU - Ahlers, Markus Tobias

AU - Ahrens, M.

AU - Al Samarai, I.

AU - Altmann, D.

AU - Andeen, K.

AU - Anderson, T.

AU - Ansseau, I

AU - Anton, G.

AU - Arguelles, C.

AU - Auffenberg, J.

AU - Axani, S.

AU - Backes, P.

AU - Bagherpour, H.

AU - Bai, X.

AU - Barron, J.P.

AU - Barwick, S.W.

AU - Baum, V.

AU - Bay, R.

AU - Beatty, J.J.

AU - Tjus, S. E.

AU - Bourbeau, Etienne

AU - Medici, Morten Ankersen

AU - Larson, Michael James

AU - Stuttard, Thomas Simon

AU - Koskinen, D. Jason

AU - Rameez, M

AU - Sarkar, Subir

PY - 2018/10/1

Y1 - 2018/10/1

N2 - With the observation of high-energy astrophysical neutrinos by the IceCube Neutrino Observatory, interest has risen in models of PeV-mass decaying dark matter particles to explain the observed flux. We present two dedicated experimental analyses to test this hypothesis. One analysis uses 6 years of IceCube data focusing on muon neutrino ‘track’ events from the Northern Hemisphere, while the second analysis uses 2 years of ‘cascade’ events from the full sky. Known background components and the hypothetical flux from unstable dark matter are fitted to the experimental data. Since no significant excess is observed in either analysis, lower limits on the lifetime of dark matter particles are derived: we obtain the strongest constraint to date, excluding lifetimes shorter than 1028s at 90% CL for dark matter masses above 10TeV.

AB - With the observation of high-energy astrophysical neutrinos by the IceCube Neutrino Observatory, interest has risen in models of PeV-mass decaying dark matter particles to explain the observed flux. We present two dedicated experimental analyses to test this hypothesis. One analysis uses 6 years of IceCube data focusing on muon neutrino ‘track’ events from the Northern Hemisphere, while the second analysis uses 2 years of ‘cascade’ events from the full sky. Known background components and the hypothetical flux from unstable dark matter are fitted to the experimental data. Since no significant excess is observed in either analysis, lower limits on the lifetime of dark matter particles are derived: we obtain the strongest constraint to date, excluding lifetimes shorter than 1028s at 90% CL for dark matter masses above 10TeV.

U2 - 10.1140/epjc/s10052-018-6273-3

DO - 10.1140/epjc/s10052-018-6273-3

M3 - Journal article

C2 - 30930683

SN - 1434-6044

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

IS - 10

M1 - 831

ER -

Search for neutrinos from decaying dark matter with IceCube: IceCube Collaboration

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