Search for astrophysical tau neutrinos in three years of IceCube data

M.G. Aartsen; M. Ackermann; J. Adams; J.A. Aguilar; M. Ahlers; M Ahrens; D. Altmann; T. Anderson; I. Ansseau; M. Archinger; C. Arguelles; T.C. Arlen; Morten Ankersen Medici; David Jason Koskinen; Michael James Larson; Subir Sarkar

doi:10.1103/physrevd.93.022001

Search for astrophysical tau neutrinos in three years of IceCube data

M.G. Aartsen, M. Ackermann, J. Adams, J.A. Aguilar, M. Ahlers, M Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T.C. Arlen, Morten Ankersen Medici, David Jason Koskinen, Michael James Larson, Subir Sarkar

55 Citationer (Scopus)

Abstract

The IceCube Neutrino Observatory has observed a diffuse flux of TeV-PeV astrophysical neutrinos at 5.7σ significance from an all-flavor search. The direct detection of tau neutrinos in this flux has yet to occur. Tau neutrinos become distinguishable from other flavors in IceCube at energies above a few hundred TeV, when the cascade from the tau neutrino charged current interaction becomes resolvable from the cascade from the tau lepton decay. This paper presents results from the first dedicated search for tau neutrinos with energies between 214 TeV and 72 PeV in the full IceCube detector. The analysis searches for IceCube optical sensors that observe two separate pulses in a single event - one from the tau neutrino interaction and a second from the tau decay. No candidate events were observed in three years of IceCube data. For the first time, a differential upper limit on astrophysical tau neutrinos is derived around the PeV energy region, which is nearly 3 orders of magnitude lower in energy than previous limits from dedicated tau neutrino searches.

Originalsprog	Engelsk
Artikelnummer	022001
Tidsskrift	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Vol/bind	93
ISSN	1550-7998
DOI	https://doi.org/10.1103/physrevd.93.022001
Status	Udgivet - 12 jan. 2016

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10.1103/physrevd.93.022001

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Citationsformater

Aartsen, M. G., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Altmann, D., Anderson, T., Ansseau, I., Archinger, M., Arguelles, C., Arlen, T. C., Medici, M. A., Koskinen, D. J., Larson, M. J., & Sarkar, S. (2016). Search for astrophysical tau neutrinos in three years of IceCube data. Physical Review D (Particles, Fields, Gravitation and Cosmology), 93, [022001]. https://doi.org/10.1103/physrevd.93.022001

Aartsen, MG, Ackermann, M, Adams, J, Aguilar, JA, Ahlers, M, Ahrens, M, Altmann, D, Anderson, T, Ansseau, I, Archinger, M, Arguelles, C, Arlen, TC, Medici, MA, Koskinen, DJ, Larson, MJ & Sarkar, S 2016, 'Search for astrophysical tau neutrinos in three years of IceCube data', Physical Review D (Particles, Fields, Gravitation and Cosmology), bind 93, 022001. https://doi.org/10.1103/physrevd.93.022001

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title = "Search for astrophysical tau neutrinos in three years of IceCube data",

abstract = "The IceCube Neutrino Observatory has observed a diffuse flux of TeV-PeV astrophysical neutrinos at 5.7σ significance from an all-flavor search. The direct detection of tau neutrinos in this flux has yet to occur. Tau neutrinos become distinguishable from other flavors in IceCube at energies above a few hundred TeV, when the cascade from the tau neutrino charged current interaction becomes resolvable from the cascade from the tau lepton decay. This paper presents results from the first dedicated search for tau neutrinos with energies between 214 TeV and 72 PeV in the full IceCube detector. The analysis searches for IceCube optical sensors that observe two separate pulses in a single event - one from the tau neutrino interaction and a second from the tau decay. No candidate events were observed in three years of IceCube data. For the first time, a differential upper limit on astrophysical tau neutrinos is derived around the PeV energy region, which is nearly 3 orders of magnitude lower in energy than previous limits from dedicated tau neutrino searches.",

author = "M.G. Aartsen and M. Ackermann and J. Adams and J.A. Aguilar and M. Ahlers and M Ahrens and D. Altmann and T. Anderson and I. Ansseau and M. Archinger and C. Arguelles and T.C. Arlen and Medici, {Morten Ankersen} and Koskinen, {David Jason} and Larson, {Michael James} and Subir Sarkar",

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AU - Aartsen, M.G.

AU - Ackermann, M.

AU - Adams, J.

AU - Aguilar, J.A.

AU - Ahlers, M.

AU - Ahrens, M

AU - Altmann, D.

AU - Anderson, T.

AU - Ansseau, I.

AU - Archinger, M.

AU - Arguelles, C.

AU - Arlen, T.C.

AU - Medici, Morten Ankersen

AU - Koskinen, David Jason

AU - Larson, Michael James

AU - Sarkar, Subir

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N2 - The IceCube Neutrino Observatory has observed a diffuse flux of TeV-PeV astrophysical neutrinos at 5.7σ significance from an all-flavor search. The direct detection of tau neutrinos in this flux has yet to occur. Tau neutrinos become distinguishable from other flavors in IceCube at energies above a few hundred TeV, when the cascade from the tau neutrino charged current interaction becomes resolvable from the cascade from the tau lepton decay. This paper presents results from the first dedicated search for tau neutrinos with energies between 214 TeV and 72 PeV in the full IceCube detector. The analysis searches for IceCube optical sensors that observe two separate pulses in a single event - one from the tau neutrino interaction and a second from the tau decay. No candidate events were observed in three years of IceCube data. For the first time, a differential upper limit on astrophysical tau neutrinos is derived around the PeV energy region, which is nearly 3 orders of magnitude lower in energy than previous limits from dedicated tau neutrino searches.

AB - The IceCube Neutrino Observatory has observed a diffuse flux of TeV-PeV astrophysical neutrinos at 5.7σ significance from an all-flavor search. The direct detection of tau neutrinos in this flux has yet to occur. Tau neutrinos become distinguishable from other flavors in IceCube at energies above a few hundred TeV, when the cascade from the tau neutrino charged current interaction becomes resolvable from the cascade from the tau lepton decay. This paper presents results from the first dedicated search for tau neutrinos with energies between 214 TeV and 72 PeV in the full IceCube detector. The analysis searches for IceCube optical sensors that observe two separate pulses in a single event - one from the tau neutrino interaction and a second from the tau decay. No candidate events were observed in three years of IceCube data. For the first time, a differential upper limit on astrophysical tau neutrinos is derived around the PeV energy region, which is nearly 3 orders of magnitude lower in energy than previous limits from dedicated tau neutrino searches.

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ER -

Search for astrophysical tau neutrinos in three years of IceCube data

Abstract

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