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# Search for astrophysical tau neutrinos in three years of IceCube data

(2016) 93(2).
Author
Organization
Abstract
The IceCube Neutrino Observatory has observed a diffuse flux of TeV-PeVastrophysical neutrinos at 5.7 sigma 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.
Keywords
ANTINEUTRINOS, OSCILLATIONS, SYSTEM

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## Citation

Chicago
Aartsen, M. G., K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, et al. 2016. “Search for Astrophysical Tau Neutrinos in Three Years of IceCube Data.” Physical Review D 93 (2).
APA
Aartsen, M. G., Abraham, K., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., et al. (2016). Search for astrophysical tau neutrinos in three years of IceCube data. PHYSICAL REVIEW D, 93(2).
Vancouver
1.
Aartsen MG, Abraham K, Ackermann M, Adams J, Aguilar JA, Ahlers M, et al. Search for astrophysical tau neutrinos in three years of IceCube data. PHYSICAL REVIEW D. 2016;93(2).
MLA
Aartsen, M. G., K. Abraham, M. Ackermann, et al. “Search for Astrophysical Tau Neutrinos in Three Years of IceCube Data.” PHYSICAL REVIEW D 93.2 (2016): n. pag. Print.
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abstract     = {The IceCube Neutrino Observatory has observed a diffuse flux of TeV-PeVastrophysical neutrinos at 5.7 sigma 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.},
articleno    = {022001},
author       = {Aartsen, M.\,G. and Abraham, K. and Ackermann, M. and Adams, J. and Aguilar, J.\,A. and Ahlers, M. and Ahrens, M. and Altmann, D. and Anderson, T. and Ansseau, I. and Archinger, M. and Arguelles, C. and Arlen, T.\,C. and Auffenberg, J. and Bai, X. and Barwick, S.\,W. and Baum, V. and Bay, R. and Beatty, J.\,J. and Becker Tjus, J. and Becker, K.-H. and Beiser, E. and BenZvi, S. and Berghaus, P. and Berley, D. and Bernardini, E. and Bernhard, A. and Besson, D.\,Z. and Binder, G. and Bindig, D. and Bissok, M. and Blaufuss, E. and Blumenthal, J. and Boersma, D.\,J. and Bohm, C. and B{\"o}rner, M. and Bos, F. and Bose, D. and B{\"o}ser, S. and Botner, O. and Braun, J. and Brayeur, L. and Bretz, H.-P. and Buzinsky, N. and Casey, J. and Casier, M. and Cheung, E. and Chirkin, D. and Christov, A. and Clark, K. and Classen, L. and Coenders, S. and Cowen, D.\,F. and Cruz Silva, A.\,H. and Daughhetee, J. and Davis, J.\,C. and Day, M. and de Andr{\'e}, J.\,P.\,A.\,M. and De Clercq, C. and del Pino Rosendo, E. and Dembinski, H. and De Ridder, Sam and Desiati, P. and de Vries, K.\,D. and de Wasseige, G. and de With, M. and DeYoung, T. and D{\'i}az-V{\'e}lez, J.\,C. and di Lorenzo, V. and Dumm, J.\,P. and Dunkman, M. and Eagan, R. and Eberhardt, B. and Ehrhardt, T. and Eichmann, B. and Euler, S. and Evenson, P.\,A. and Fadiran, O. and Fahey, S. and Fazely, A.\,R. and Fedynitch, A. and Feintzeig, J. and Felde, J. and Filimonov, K. and Finley, C. and Fischer-Wasels, T. and Flis, S. and F{\"o}sig, C.-C. and Fuchs, T. and Gaisser, T.\,K. and Gaior, R. and Gallagher, J. and Gerhardt, L. and Ghorbani, K. and Gier, D. and Gladstone, L. and Glagla, M. and Gl{\"u}senkamp, T. and Goldschmidt, A. and Golup, G. and Gonzalez, J.\,G. and G{\'o}ra, D. and Grant, D. and Groh, J.\,C. and Gro{\ss}, A. and Ha, C. and Haack, C. and Haj Ismail, A. and Hallgren, A. and Halzen, F. and Hansen, E. and Hansmann, B. and Hanson, K. and Hebecker, D. and Heereman, D. and Helbing, K. and Hellauer, R. and Hickford, S. and Hignight, J. and Hill, G.\,C. and Hoffman, K.\,D. and Hoffmann, R. and Holzapfel, K. and Homeier, A. and Hoshina, K. and Huang, F. and Huber, M. and Huelsnitz, W. and Hulth, P.\,O. and Hultqvist, K. and In, S. and Ishihara, A. and Jacobi, E. and Japaridze, G.\,S. and Jero, K. and Jurkovic, M. and Kappes, A. and Karg, T. and Karle, A. and Kauer, M. and Keivani, A. and Kelley, J.\,L. and Kemp, J. and Kheirandish, A. and Kiryluk, J. and Kl{\"a}s, J. and Klein, S.\,R. and Kohnen, G. and Koirala, R. and Kolanoski, H. and Konietz, R. and K{\"o}pke, L. and Kopper, C. and Kopper, S. and Koskinen, D.\,J. and Kowalski, M. and Krings, K. and Kroll, G. and Kroll, M. and Kunnen, J. and Kurahashi, N. and Kuwabara, T. and Labare, Mathieu and Lanfranchi, J.\,L. and Larson, M.\,J. and Lesiak-Bzdak, M. and Leuermann, M. and Leuner, J. and Lu, L. and L{\"u}nemann, J. and Madsen, J. and Maggi, G. and Mahn, K.\,B.\,M. and Maruyama, R. and Mase, K. and Matis, H.\,S. and Maunu, R. and McNally, F. and Meagher, K. and Medici, M. and Meli, A. and Menne, T. and Merino, G. and Meures, T. and Miarecki, S. and Middell, E. and Middlemas, E. and Mohrmann, L. and Montaruli, T. and Morse, R. and Nahnhauer, R. and Naumann, U. and Neer, G. and Niederhausen, H. and Nowicki, S.\,C. and Nygren, D.\,R. and Obertacke, A. and Olivas, A. and Omairat, A. and O{\textquoteright}Murchadha, A. and Palczewski, T. and Pandya, H. and Pankova, D.\,V. and Paul, L. and Pepper, J.\,A. and P{\'e}rez de los Heros, C. and Pfendner, C. and Pieloth, D. and Pinat, E. and Posselt, J. and Price, P.\,B. and Przybylski, G.\,T. and P{\"u}tz, J. and Quinnan, M. and Raab, C. and R{\"a}del, L. and Rameez, M. and Rawlins, K. and Reimann, R. and Relich, M. and Resconi, E. and Rhode, W. and Richman, M. and Richter, S. and Riedel, B. and Robertson, S. and Rongen, M. and Rott, C. and Ruhe, T. and Ryckbosch, Dirk and Saba, S.\,M. and Sabbatini, L. and Sander, H.-G. and Sandrock, A. and Sandroos, J. and Sarkar, S. and Schatto, K. and Scheriau, F. and Schimp, M. and Schmidt, T. and Schmitz, M. and Schoenen, S. and Sch{\"o}neberg, S. and Sch{\"o}nwald, A. and Schulte, L. and Seckel, D. and Seunarine, S. and Smith, M.\,W.\,E. and Soldin, D. and Song, M. and Spiczak, G.\,M. and Spiering, C. and Stahlberg, M. and Stamatikos, M. and Stanev, T. and Stanisha, N.\,A. and Stasik, A. and Stezelberger, T. and Stokstad, R.\,G. and St{\"o}{\ss}l, A. and Str{\"o}m, R. and Strotjohann, N.\,L. and Sullivan, G.\,W. and Sutherland, M. and Taavola, H. and Taboada, I. and Tatar, J. and Ter-Antonyan, S. and Terliuk, A. and Te\v{s}i\'{c}, G. and Tilav, S. and Toale, P.\,A. and Tobin, M.\,N. and Toscano, S. and Tosi, D. and Tselengidou, M. and Turcati, A. and Unger, E. and Usner, M. and Vallecorsa, S. and Vandenbroucke, J. and van Eijndhoven, N. and Vanheule, Sander and van Santen, J. and Veenkamp, J. and Vehring, M. and Voge, M. and Vraeghe, Matthias and Walck, C. and Wallace, A. and Wallraff, M. and Wandkowsky, N. and Weaver, Ch. and Wendt, C. and Westerhoff, S. and Whelan, B.\,J. and Whitehorn, N. and Wiebe, K. and Wiebusch, C.\,H. and Wille, L. and Williams, D.\,R. and Wissing, H. and Wolf, M. and Wood, T.\,R. and Woschnagg, K. and Xu, D.\,L. and Xu, X.\,W. and Xu, Y. and Yanez, J.\,P. and Yodh, G. and Yoshida, S. and Zoll, M.},
issn         = {2470-0010},
journal      = {PHYSICAL REVIEW D},
keyword      = {ANTINEUTRINOS,OSCILLATIONS,SYSTEM},
language     = {eng},
number       = {2},
pages        = {11},
title        = {Search for astrophysical tau neutrinos in three years of IceCube data},
url          = {http://dx.doi.org/10.1103/physrevd.93.022001},
volume       = {93},
year         = {2016},
}

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