First search for atmospheric and extraterrestrial neutrino-induced cascades with the IceCube detector

Academic Article

Abstract

  • We report on the first search for atmospheric and for diffuse astrophysical neutrino-induced showers (cascades) in the IceCube detector using 257 days of data collected in the year 2007-2008 with 22 strings active. A total of 14 events with energies above 16 TeV remained after event selections in the diffuse analysis, with an expected total background contribution of $8.3\pm 3.6$. At 90% confidence we set an upper limit of $E^2\Phi_{90%CL}<3.6\times10^{-7} GeV \cdot cm^{-2} \cdot s^{-1}\cdot sr^{-1} $ on the diffuse flux of neutrinos of all flavors in the energy range between 24 TeV and 6.6 PeV assuming that $\Phi \propto E^{-2}$ and that the flavor composition of the $\nu_e : \nu_\mu : \nu_\tau$ flux is $1 : 1 : 1$ at the Earth. The atmospheric neutrino analysis was optimized for lower energies. A total of 12 events were observed with energies above 5 TeV. The observed number of events is consistent with the expected background, within the uncertainties.
  • Authors

  • Abbasi, R
  • Abdou, Y
  • Abu-Zayyad, T
  • Adams, J
  • Aguilar, JA
  • Ahlers, M
  • Andeen, K
  • Auffenberg, J
  • Bai, X
  • Baker, M
  • Barwick, SW
  • Bay, R
  • Alba, JL Bazo
  • Beattie, K
  • Beatty, JJ
  • Bechet, S
  • Becker, JK
  • Becker, K-H
  • Benabderrahmane, ML
  • BenZvi, S
  • Berdermann, J
  • Berghaus, P
  • Berley, D
  • Bernardini, E
  • Bertrand, D
  • Besson, DZ
  • Bindig, D
  • Bissok, M
  • Blaufuss, E
  • Blumenthal, J
  • Boersma, DJ
  • Bohm, C
  • Bose, D
  • Boeser, S
  • Botner, O
  • Braun, J
  • Brown, AM
  • Buitink, S
  • Carson, M
  • Chirkin, D
  • Christy, B
  • Clem, J
  • Clevermann, F
  • Cohen, S
  • Colnard, C
  • Cowen, DF
  • D'Agostino, MV
  • Danninger, M
  • Daughhetee, J
  • Davis, JC
  • De Clercq, C
  • Demiroers, L
  • Depaepe, O
  • Descamps, F
  • Desiati, P
  • de Vries-Uiterweerd, G
  • DeYoung, T
  • Diaz-Velez, JC
  • Dierckxsens, M
  • Dreyer, J
  • Dumm, JP
  • Ehrlich, R
  • Eisch, J
  • Ellsworth, RW
  • Engdegard, O
  • Euler, S
  • Evenson, PA
  • Fadiran, O
  • Fazely, AR
  • Fedynitch, A
  • Feusels, T
  • Filimonov, K
  • Finley, C
  • Fischer-Wasels, T
  • Foerster, MM
  • Fox, BD
  • Franckowiak, A
  • Franke, R
  • Gaisser, TK
  • Gallagher, J
  • Geisler, M
  • Gerhardt, L
  • Gladstone, L
  • Gluesenkamp, T
  • Goldschmidt, A
  • Goodman, JA
  • Grant, D
  • Griesel, T
  • Gross, A
  • Grullon, S
  • Gurtner, M
  • Ha, C
  • Hallgren, A
  • Halzen, F
  • Han, K
  • Hanson, K
  • Heinen, D
  • Helbing, K
  • Herquet, P
  • Hickford, S
  • Hill, GC
  • Hoffman, KD
  • Homeier, A
  • Hoshina, K
  • Hubert, D
  • Huelsnitz, W
  • Huelss, J-P
  • Hulth, PO
  • Hultqvist, K
  • Hussain, S
  • Ishihara, A
  • Jacobsen, J
  • Japaridze, GS
  • Johansson, H
  • Joseph, JM
  • Kampert, K-H
  • Kappes, A
  • Karg, T
  • Karle, A
  • Kelley, JL
  • Kemming, N
  • Kenny, P
  • Kiryluk, J
  • Kislat, Fabian
  • Klein, SR
  • Koehne, J-H
  • Kohnen, G
  • Kolanoski, H
  • Koepke, L
  • Kopper, S
  • Koskinen, DJ
  • Kowalski, M
  • Kowarik, T
  • Krasberg, M
  • Krings, T
  • Kroll, G
  • Kuehn, K
  • Kuwabara, T
  • Labare, M
  • Lafebre, S
  • Laihem, K
  • Landsman, H
  • Larson, MJ
  • Lauer, R
  • Lehmann, R
  • Luenemann, J
  • Madsen, J
  • Majumdar, P
  • Marotta, A
  • Maruyama, R
  • Mase, K
  • Matis, HS
  • Meagher, K
  • Merck, M
  • Meszaros, P
  • Meures, T
  • Middell, E
  • Milke, N
  • Miller, J
  • Montaruli, T
  • Morse, R
  • Movit, SM
  • Nahnhauer, R
  • Nam, JW
  • Naumann, U
  • Niessen, P
  • Nygren, DR
  • Odrowski, S
  • Olivas, A
  • Olivo, M
  • O'Murchadha, A
  • Ono, M
  • Panknin, S
  • Paul, L
  • de los Heros, C Perez
  • Petrovic, J
  • Piegsa, A
  • Pieloth, D
  • Porrata, R
  • Posselt, J
  • Price, PB
  • Prikockis, M
  • Przybylski, GT
  • Rawlins, K
  • Redl, P
  • Resconi, E
  • Rhode, W
  • Ribordy, M
  • Rizzo, A
  • Rodrigues, JP
  • Roth, P
  • Rothmaier, F
  • Rott, C
  • Ruhe, T
  • Rutledge, D
  • Ruzybayev, B
  • Ryckbosch, D
  • Sander, H-G
  • Santander, M
  • Sarkar, S
  • Schatto, K
  • Schmidt, T
  • Schoenwald, A
  • Schukraft, A
  • Schultes, A
  • Schulz, O
  • Schunck, M
  • Seckel, D
  • Semburg, B
  • Seo, SH
  • Sestayo, Y
  • Seunarine, S
  • Silvestri, A
  • Slipak, A
  • Spiczak, GM
  • Spiering, C
  • Stamatikos, M
  • Stanev, T
  • Stephens, G
  • Stezelberger, T
  • Stokstad, RG
  • Stoyanov, S
  • Strahler, EA
  • Straszheim, T
  • Sullivan, GW
  • Swillens, Q
  • Taavola, H
  • Taboada, I
  • Tamburro, A
  • Tarasova, O
  • Tepe, A
  • Ter-Antonyan, S
  • Tilav, S
  • Toale, PA
  • Toscano, S
  • Tosi, D
  • Turcan, D
  • van Eijndhoven, N
  • Vandenbroucke, J
  • Van Overloop, A
  • van Santen, J
  • Vehring, M
  • Voge, M
  • Voigt, B
  • Walck, C
  • Waldenmaier, T
  • Wallraff, M
  • Walter, M
  • Weaver, Ch
  • Wendt, C
  • Westerhoff, S
  • Whitehorn, N
  • Wiebe, K
  • Wiebusch, CH
  • Williams, DR
  • Wischnewski, R
  • Wissing, H
  • Wolf, M
  • Woschnagg, K
  • Xu, C
  • Xu, XW
  • Yodh, G
  • Yoshida, S
  • Zarzhitsky, P
  • Collaboration, IceCube
  • Status

    Publication Date

  • October 3, 2011
  • Keywords

  • astro-ph.HE
  • hep-ex
  • Digital Object Identifier (doi)

    Start Page

  • 072001
  • Volume

  • 84
  • Issue

  • 7