First observation of PeV-energy neutrinos with IceCube.

Collaboration, IceCube; de Ridder, S.; Aartsen, Mg G.; Abbasi, R.; Abdou, Yasser; Ackermann, Markus; Adams, J.; Aguilar, Ja A.; Ahlers, M.; Altmann, D.; Auffenberg, J.; Bai, X.; Baker, M.; Barwick, Sw W.; Baum, V.; Bay, R.; Beatty, Jj J.; Bechet, S.; Becker Tjus, J.; Becker, Kh-H.; Bell, M.; Tjus, Jb Becker; Benabderrahmane, Ml L.; BenZvi, S.; Berdermann, J.; Berghaus, P.; Berley, D.; Bernardini, E.; Bernhard, A.; Bertrand, D.; Besson, Dz Z.; Binder, G.; Boeser, S.; Bindig, D.; Bissok, M.; Blaufuss, E.; Blumenthal, J.; Boersma, Dj J.; Bohaichuk, S.; Silva, Ahc; Bohm, C.; Bose, D.; Botner, O.; Böser, S.; Brayeur, L.; Bretz, Hp-P.; Boser, S.; Brown, Am M.; Bruijn, R.; Brunner, J.; Carson, Michael; Casey, J.; Casier, M.; Chirkin, D.; Christov, A.; Christy, B.; Clark, K.; Clevermann, F.; Coenders, S.; Cohen, S.; de With, M.; Cowen, Df F.; Cruz Silva, Ah H.; Danninger, M.; Daughhetee, J.; Gluesenkamp, T.; Davis, Jc C.; De Clercq, C.; De Ridder, Sam; Desiati, Paolo; DeYoung, T.; Díaz-Vélez, Jc C.; Dunkman, M.; Diaz-Velez, Jc C.; Eagan, R.; Eberhardt, B.; Eisch, J.; Ellsworth, Rw W.; Euler, S.; Evenson, Pa A.; Fadiran, O.; Fazely, Ar R.; Fedynitch, Anatoli; Feintzeig, J.; Feusels, Tom; Filimonov, K.; Finley, C.; Fischer-Wasels, T.; Flis, S.; Franckowiak, A.; Franke, Robert; Frantzen, K.; Fuchs, T.; Gaisser, Tk K.; Gallagher, J.; Gerhardt, L.; Gladstone, L.; Glüsenkamp, T.; Goldschmidt, A.; Golup, G.; Gora, D.; Gonzalez, Jg G.; de los Heros, Cp Perez; Goodman, Ja A.; Góra, D.; Grant, D.; Groß, A.; Gurtner, M.; Ha, C.; Haj Ismail, Abd Al Karim; Hallen, P.; Klaes, J.; Ismail, A. Haj; Hallgren, A.; Halzen, F.; Hanson, K.; Heereman, D.; Heinen, D.; Helbing, K.; Hellauer, R.; Hickford, S.; Hill, Gc C.; Hoffman, Kd D.; Hoffmann, R.; Homeier, A.; Hoshina, K.; Huelsnitz, W.; Koehne, Jh; Hulth, Po O.; Hultqvist, K.; Hussain, S.; Ishihara, A.; Jacobi, Emanuel; Jacobsen, J.; Jagielski, K.; Japaridze, Gs S.; Jero, K.; Jlelati, Ola; Kaminsky, B.; Kappes, A.; Karg, T.; Karle, A.; Kelley, Jl L.; Kiryluk, J.; Kislat, F.; Kläs, J.; Klein, S. R.; Klas, J.; Köhne, Jh-H.; Kohnen, Georges; Kolanoski, H.; Kohne, J. H.; Köpke, L.; Kopper, C.; Kopper, S.; Koskinen, Dj J.; Kopke, L.; Kowalski, M.; Krasberg, M.; Krings, K.; Kroll, G.; Kunnen, J.; Kurahashi, N.; Kuwabara, T.; Labare, Mathieu; Landsman, H.; Larson, Mj J.; Lesiak-Bzdak, M.; Leuermann, M.; Leute, J.; Lünemann, J.; Madsen, J.; Maruyama, R.; Mase, K.; Matis, Hs S.; McNally, F.; Meagher, K.; Merck, M.; Mészáros, P.; Meures, T.; Miarecki, S.; Middell, E.; Milke, N.; Miller, J.; Mohrmann, L.; Montaruli, T.; Koepke, L.; Morse, R.; Nahnhauer, R.; Naumann, U.; Meszaros, P.; Niederhausen, H.; Nowicki, Sc C.; Nygren, Dr R.; Obertacke, A.; Odrowski, S.; Olivas, A.; Olivo, Martino; O’Murchadha, A.; O'Murchadha, A.; Paul, L.; Pepper, Ja A.; Pérez de los Heros, C.; Pfendner, C.; Pieloth, D.; Pinat, E.; Pirk, N.; Posselt, J.; Price, Pb B.; Przybylski, Gt T.; Rameez, M.; Rädel, L.; Radel, L.; Rawlins, K.; Redl, P.; Reimann, R.; Resconi, E.; Rhode, W.; Ribordy, M.; Richman, M.; Riedel, B.; Rodrigues, Jp P.; Rott, C.; Ruhe, T.; Ruzybayev, B.; Ryckbosch, Dirk; Saba, Sm M.; Salameh, T.; Sander, Hg-G.; Santander, M.; Sarkar, S.; Schatto, K.; Scheel, M.; Scheriau, F.; Schmidt, T.; Schmitz, M.; Luenemann, J.; Schoenen, S.; van der Drift, D.; Schöneberg, Sebastian; van Eijndhoven, N.; Schoneberg, S.; Schukraft, A.; Schönwald, A.; Schulte, L.; Schonwald, A.; van Santen, J.; Schulz, O.; Seckel, D.; Sestayo, Y.; Seunarine, S.; Sheremata, C.; Smith, Mw W. E.; Soiron, M.; Soldin, D.; Spiczak, Gm M.; Spiering, C.; Stamatikos, M.; Stanev, T.; Stasik, A.; Stezelberger, T.; Stokstad, Rg G.; Strahler, Ea A.; Stößl, A.; Ström, R.; Stossl, A.; Sullivan, Gw W.; Taavola, H.; Taboada, I.; Tamburro, A.; Ter-Antonyan, S.; Tešić, G.; Tilav, S.; Toale, Pa A.; Toscano, S.; Usner, M.; Raedel, L.; Van Overloop, Arne; Vehring, M.; Voge, M.; Vraeghe, Matthias; Walck, C.; Waldenmaier, T.; Wallraff, M.; Wasserman, R.; Weaver, C.-H.; Wellons, M.; Wendt, C.; Westerhoff, S.; Whitehorn, N.; Wiebe, K.; Wiebusch, Ch H.; Williams, Dr R.; Schoeneberg, S.; Wissing, H.; Wolf, Martina; Wood, Tr R.; Woschnagg, K.; Xu, C.; Xu, Dl L.; Xu, Xw W.; Yanez, Jp P.; Yodh, G.; Yoshida, S.; Zarzhitsky, P.; Ziemann, J.; Zierke, S.; Schoenwald, A.; Zilles, A.; Zoll, M.; Stoessl, A.

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arXiv, 2013

DOI: 10.48550/arxiv.1304.5356

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First observation of PeV-energy neutrinos with IceCube.

Journal article published in 2013 by IceCube Collaboration, S. de Ridder, Mg G. Aartsen, R. Abbasi, Yasser Abdou, Markus Ackermann

, J. Adams, Ja A. Aguilar, M. Ahlers, D. Altmann, J. Auffenberg, X. Bai, M. Baker, Sw W. Barwick, V. Baum and other authors.

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Abstract

We report on the observation of two neutrino-induced events which have an estimated deposited energy in the IceCube detector of 1.04±0.16 and 1.14±0.17 PeV, respectively, the highest neutrino energies observed so far. These events are consistent with fully contained particle showers induced by neutral-current ν(e,μ,τ) (ν̅ (e,μ,τ)) or charged-current ν(e) (ν̅ e) interactions within the IceCube detector. The events were discovered in a search for ultrahigh energy neutrinos using data corresponding to 615.9 days effective live time. The expected number of atmospheric background is 0.082±0.004(stat)₋₀.₀₅₇⁺⁰.⁰⁴¹ (syst). The probability of observing two or more candidate events under the atmospheric background-only hypothesis is 2.9×10⁻³ (2.8σ) taking into account the uncertainty on the expected number of background events. These two events could be a first indication of an astrophysical neutrino flux; the moderate significance, however, does not permit a definitive conclusion at this time. ; M. G. Aartsen . G. C. Hill . et al. (IceCube Collaboration)

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First observation of PeV-energy neutrinos with IceCube.

Abstract