Science, Vol.342, No.6161, 947-947, 2013
Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
Aartsen MG ,
Abbasi R ,
Abdou Y ,
Ackermann M ,
Adams J ,
Aguitar JA ,
Alders M ,
Altmann D ,
Auffetibery J ,
Bai X ,
Baker M ,
Barwick SW ,
Baum V ,
Bay R ,
Beatty JJ ,
Bechet S ,
Tjus JB ,
Becker KH ,
Benabderrahmane ML ,
BenZvi S ,
Berghaus P ,
Berley D ,
Bernardini E ,
Bernhard A ,
Bertrand D ,
Besson DZ ,
Binder G ,
Bindig D ,
Bissok M ,
Blaufuss E ,
Blumenthal J ,
Boersma DJ ,
Boliaichuk S ,
Bohm C ,
Bose D ,
Boeser S ,
Botner O ,
Brayeur L ,
Bretz HP ,
Brown AM ,
Bruijn R ,
Brunner J ,
Carson M ,
Casey J ,
Casier M ,
Chirkin D ,
Christov A ,
Christy B ,
Clark K ,
Cleverrnann F ,
Coenders S ,
Cohen S ,
Cowen DF ,
Silva AHC ,
Danninger M ,
Daughhetee J ,
Davis JC ,
Day M ,
De Clercq C ,
De Ridder S ,
Desiati P ,
de Vries KD ,
de With M ,
DeYoung T ,
Diaz-Velez JC ,
Dunkman M ,
Eagan R ,
Eberhardt B ,
Eichmann B ,
Eisch J ,
Ellsworth RW ,
Euler S ,
Evenson PA ,
Fadiran O ,
Fazely AR ,
Fedynitch A ,
Feinzeig J ,
Feusels T ,
Filimonov K ,
Finley C ,
Fischer-Wasels T ,
Flis S ,
Franckowiak A ,
Frantzen K ,
Fuchs T ,
Gaisser TK ,
Gallagher J ,
Gerhardt L ,
Gladstone L ,
Glusenkamp T ,
Goldschmidt A ,
Golup G ,
Gonzalez JG ,
Goodman JA ,
Gora D ,
Grandmont DT ,
Grant D ,
Gross A ,
Ha C ,
Ismail AH ,
Hallen P ,
Hallgren A ,
Halzen F ,
Hanson K ,
Heerernan D ,
Heinen D ,
Helbing K ,
Hellauer R ,
Hickford S ,
Hill GC ,
Hoffman KD ,
Hoffmann R ,
Homeier A ,
Hoshina K ,
Huelsnitz W ,
Hulth PO ,
Hultqvist K ,
Hussain S ,
Ishihara A ,
Jacobi E ,
Jacobsen J ,
Jagielski K ,
Japaridze GS ,
Jero K ,
Jlelati O ,
Kaminsky B ,
Kappes A ,
Karg T ,
Karle A ,
Kelley JL ,
Kiryluk J ,
Klas J ,
Klein SR ,
Koohne JH ,
Kohnen C ,
Kolanoski H ,
Koepke L ,
Kopper C ,
Kopper S ,
Koskinen DJ ,
Kowalski M ,
Krasberg M ,
Krings K ,
Kroll G ,
Kunnen J ,
Kurahashi N ,
Kowabara T ,
Labare M ,
Landsman H ,
Larson MJ ,
Lesiak-Bzdak M ,
Leuermann M ,
Leute J ,
Lunemann J ,
Madsen J ,
Maggi G ,
Maruyama R ,
Mase K ,
Matis HS ,
McNally F ,
Meagher K ,
Merck M ,
Meures T ,
Miarecki S ,
Middell E ,
Milke N ,
Miller J ,
Mohrmann L ,
Montaruli T ,
Morse R ,
Nahnhauer R ,
Naumann U ,
Niederhausen H ,
Nowicki SC ,
Nygren DR ,
Obertacke A ,
Odrowski S ,
Olivas A ,
O'Murchadha A ,
Paul L ,
Pepper JA ,
de los Heros CP ,
Pfendner C ,
Pieloth D ,
Pinat E ,
Posselt J ,
Price PB ,
Przybylski GT ,
Radel L ,
Rameez M ,
Rawlins K ,
Redl P ,
Reimann R ,
Resconi E ,
Rhode W ,
Ribordy M ,
Richman M ,
Riedel B ,
Rodrigues JP ,
Rott C ,
Ruhe T ,
Ruzybayev B ,
Ryckbosch D ,
Saba SM ,
Salameh T ,
Sander HG ,
Santander M ,
Sarkar S ,
Schatto K ,
Scheriau F ,
Schmidt T ,
Schmitz M ,
Schoenen S ,
Schoneberg S ,
Schonwald A ,
Schokraft A ,
Schulte L ,
Schulz O ,
Seckel D ,
Sestayo Y ,
Seunarine S ,
Shanidze R ,
Sheremata C ,
Smith MWE ,
Soldin D ,
Spiczak GA ,
Spiering C ,
Stamatikos M ,
Stanev T ,
Stasik A ,
Stezelberger T ,
Stokstad RG ,
Stossl A ,
Strahler EA ,
Strom R ,
Sullivan GW ,
Taavola H ,
Taboada I ,
Tamburro A ,
Tepe A ,
Ter-Antonyan S ,
Tesic G ,
Tilav S ,
Toale PA ,
Toscana S ,
Unger E ,
Usner M ,
van Eijndhoven N ,
Van Overloop A ,
van Santen J ,
Vehring M ,
Voge M ,
Vraeghe M ,
Walck C ,
Waldenmaier T ,
Wallraff M ,
Weaver C ,
Wellons M ,
Wendt C ,
Westerhoff S ,
Whitehorn N ,
Wiebe K ,
Wiebusch CH ,
Williams DR ,
Wissing H ,
Wolf M ,
Wood TR ,
Woschnagg K ,
Xu DL ,
Xu XW ,
Yanez JP ,
Yodh G ,
Yoshida S ,
Zarzhitsky P ,
Ziemann J ,
Zierke S ,
Zoll M
We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012. The search follows up on the previous detection of two PeV neutrino events, with improved sensitivity and extended energy coverage down to about 30 TeV. Twenty-six additional events were observed, substantially more than expected from atmospheric backgrounds. Combined, both searches reject a purely atmospheric origin for the 28 events at the 4 sigma level. These 28 events, which include the highest energy neutrinos ever observed, have flavors, directions, and energies inconsistent with those expected from the atmospheric muon and neutrino backgrounds. These properties are, however, consistent with generic predictions for an additional component of extraterrestrial origin.
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