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arxiv: 1901.05366 · v1 · pith:OXJ75DCCnew · submitted 2019-01-16 · ✦ hep-ex

Measurement of Atmospheric Tau Neutrino Appearance with IceCube DeepCore

M. G. Aartsen , M. Ackermann , J. Adams , J. A. Aguilar , M. Ahlers , M. Ahrens , D. Altmann , K. Andeen
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T. Anderson I. Ansseau G. Anton C. Arg\"uelles J. Auffenberg S. Axani P. Backes H. Bagherpour X. Bai A. Barbano S. W. Barwick V. Baum R. Bay J. J. Beatty K.-H. Becker J. Becker Tjus S. BenZvi D. Berley E. Bernardini D. Z. Besson G. Binder D. Bindig E. Blaufuss S. Blot C. Bohm M. B\"orner S. B\"oser O. Botner E. Bourbeau J. Bourbeau F. Bradascio J. Braun H.-P. Bretz S. Bron J. Brostean-Kaiser A. Burgman R. S. Busse T. Carver C. Chen E. Cheung D. Chirkin K. Clark L. Classen G. H. Collin J. M. Conrad P. Coppin P. Correa D. F. Cowen R. Cross P. Dave J. P. A. M. de Andr\'e C. De Clercq J. J. DeLaunay H. Dembinski K. Deoskar S. De Ridder P. Desiati K. D. de Vries G. de Wasseige M. de With T. DeYoung J. C. D\'i az-V\'elez H. Dujmovic M. Dunkman E. Dvorak B. Eberhardt T. Ehrhardt P. Eller P. A. Evenson S. Fahey A. R. Fazely J. Felde K. Filimonov C. Finley A. Franckowiak E. Friedman A. Fritz T. K. Gaisser J. Gallagher E. Ganster S. Garrappa L. Gerhardt K. Ghorbani T. Glauch T. Gl\"usenkamp A. Goldschmidt J. G. Gonzalez D. Grant Z. Griffith M. G\"und\"uz C. Haack A. Hallgren L. Halve F. Halzen K. Hanson D. Hebecker D. Heereman K. Helbing R. Hellauer F. Henningsen S. Hickford J. Hignight G. C. Hill K. D. Hoffman R. Hoffmann T. Hoinka B. Hokanson-Fasig K. Hoshina F. Huang M. Huber K. Hultqvist M. H\"unnefeld R. Hussain S. In N. Iovine A. Ishihara E. Jacobi G. S. Japaridze M. Jeong K. Jero B. J. P. Jones P. Kalaczynski W. Kang A. Kappes D. Kappesser T. Karg M. Karl A. Karle U. Katz M. Kauer A. Keivani J. L. Kelley A. Kheirandish J. Kim T. Kintscher J. Kiryluk T. Kittler S. R. Klein R. Koirala H. Kolanoski L. K\"opke C. Kopper S. Kopper D. J. Koskinen M. Kowalski K. Krings G. Kr\"uckl N. Kulacz S. Kunwar N. Kurahashi A. Kyriacou M. Labare J. L. Lanfranchi M. J. Larson F. Lauber J. P. Lazar K. Leonard M. Leuermann Q. R. Liu E. Lohfink C. J. Lozano Mariscal L. Lu J. L\"unemann W. Luszczak J. Madsen G. Maggi K. B. M. Mahn Y. Makino K. Mallot S. Mancina I. C. Mari\c{s} R. Maruyama K. Mase R. Maunu K. Meagher M. Medici A. Medina M. Meier S. Meighen-Berger T. Menne G. Merino T. Meures S. Miarecki J. Micallef G. Moment\'e T. Montaruli R. W. Moore M. Moulai R. Nagai R. Nahnhauer P. Nakarmi U. Naumann G. Neer H. Niederhausen S. C. Nowicki D. R. Nygren A. Obertacke Pollmann A. Olivas A. O'Murchadha E. O'Sullivan T. Palczewski H. Pandya D. V. Pankova N. Park P. Peiffer C. P\'erez de los Heros D. Pieloth E. Pinat A. Pizzuto M. Plum P. B. Price G. T. Przybylski C. Raab A. Raissi M. Rameez L. Rauch K. Rawlins I. C. Rea R. Reimann B. Relethford G. Renzi E. Resconi W. Rhode M. Richman S. Robertson M. Rongen C. Rott T. Ruhe D. Ryckbosch D. Rysewyk I. Safa S. E. Sanchez Herrera A. Sandrock J. Sandroos M. Santander S. Sarkar K. Satalecka M. Schaufel P. Schlunder T. Schmidt A. Schneider J. Schneider L. Schumacher S. Sclafani D. Seckel S. Seunarine M. Silva R. Snihur J. Soedingrekso D. Soldin M. Song G. M. Spiczak C. Spiering J. Stachurska M. Stamatikos T. Stanev A. Stasik R. Stein J. Stettner A. Steuer T. Stezelberger R. G. Stokstad A. St\"o{\ss}l N. L. Strotjohann T. Stuttard G. W. Sullivan M. Sutherland I. Taboada F. Tenholt S. Ter-Antonyan A. Terliuk S. Tilav L. Tomankova C. T\"onnis S. Toscano D. Tosi M. Tselengidou C. F. Tung A. Turcati R. Turcotte C. F. Turley B. Ty E. Unger M. A. Unland Elorrieta M. Usner J. Vandenbroucke W. Van Driessche D. van Eijk N. van Eijndhoven S. Vanheule J. van Santen M. Vraeghe C. Walck A. Wallace M. Wallraff N. Wandkowsky T. B. Watson C. Weaver M. J. Weiss J. Weldert C. Wendt J. Werthebach S. Westerhoff B. J. Whelan N. Whitehorn K. Wiebe C. H. Wiebusch L. Wille D. R. Williams L. Wills M. Wolf J. Wood T. R. Wood K. Woschnagg G. Wrede D. L. Xu X. W. Xu Y. Xu J. P. Yanez G. Yodh S. Yoshida T. Yuan
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We present a measurement of atmospheric tau neutrino appearance from oscillations with three years of data from the DeepCore sub-array of the IceCube Neutrino Observatory. This analysis uses atmospheric neutrinos from the full sky with reconstructed energies between 5.6 GeV and 56 GeV to search for a statistical excess of cascade-like neutrino events which are the signature of nutau interactions. For CC+NC (CC-only) interactions, we measure the tau neutrino normalization to be 0.73 +0.30 -0.24 (0.57 +0.36 -0.30) and exclude the absence of tau neutrino oscillations at a significance of 3.2 sigma (2.0 sigma) These results are consistent with, and of similar precision to, a confirmatory IceCube analysis also presented, as well as measurements performed by other experiments.

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