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Extending the search for neutrino point sources with IceCube above the horizon

Author
Organization
Abstract
Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.
Keywords
GAMMA-RAYS, TELESCOPE, JETS, DETECTOR

Citation

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MLA
Abbasi, R, Yasser Abdou, T Abu-Zayyad, et al. “Extending the Search for Neutrino Point Sources with IceCube Above the Horizon.” PHYSICAL REVIEW LETTERS 103.22 (2009): n. pag. Print.
APA
Abbasi, R., Abdou, Y., Abu-Zayyad, T., Adams, J., Aguilar, J., Ahlers, M., Andeen, K., et al. (2009). Extending the search for neutrino point sources with IceCube above the horizon. PHYSICAL REVIEW LETTERS, 103(22).
Chicago author-date
Abbasi, R, Yasser Abdou, T Abu-Zayyad, J Adams, JA Aguilar, M Ahlers, K Andeen, et al. 2009. “Extending the Search for Neutrino Point Sources with IceCube Above the Horizon.” Physical Review Letters 103 (22).
Chicago author-date (all authors)
Abbasi, R, Yasser Abdou, T Abu-Zayyad, J Adams, JA Aguilar, M Ahlers, K Andeen, J Auffenberg, X Bai, M Baker, SW Barwick, R Bay, JLB Alba, K Beattie, JJ Beatty, S Bechet, JK Becker, KH Becker, ML Benabderrahmane, J Berdermann, P Berghaus, D Berley, E Bernardini, D Bertrand, DZ Besson, M Bissok, E Blaufuss, DJ Boersma, C Bohm, O Botner, L Bradley, J Braun, D Breder, Michael Carson, T Castermans, D Chirkin, B Christy, J Clem, S Cohen, DF Cowen, MV D’Agostino, M Danninger, CT Day, C De Clercq, L Demirors, O Depaepe, Freija Descamps, P Desiati, Garmt De Vries-Uiterweerd, T DeYoung, JC Diaz-Velez, J Dreyer, JP Dumm, MR Duvoort, WR Edwards, R Ehrlich, J Eisch, RW Ellsworth, O Engdegard, S Euler, PA Evenson, O Fadiran, AR Fazely, Tom Feusels, K Filimonov, C Finley, MM Foerster, BD Fox, A Franckowiak, R Franke, TK Gaisser, J Gallagher, R Ganugapati, L Gerhardt, L Gladstone, A Goldschmidt, JA Goodman, R Gozzini, D Grant, T Griesel, A Gross, S Grullon, RM Gunasingha, M Gurtner, C Ha, A Hallgren, F Halzen, K Han, K Hanson, Y Hasegawa, K Helbing, P Herquet, S Hickford, GC Hill, KD Hoffman, A Homeier, K Hoshina, D Hubert, W Huelsnitz, JP Hulss, PO Hulth, K Hultqvist, S Hussain, RL Imlay, M Inaba, A Ishihara, J Jacobsen, GS Japaridze, H Johansson, JM Joseph, KH Kampert, A Kappes, T Karg, A Karle, JL Kelley, N Kemming, P Kenny, J Kiryluk, F Kislat, SR Klein, S Knops, G Kohnen, H Kolanoski, L Kopke, DJ Koskinen, M Kowalski, T Kowarik, M Krasberg, T Krings, G Kroll, K Kuehn, T Kuwabara, M Labare, S Lafebre, K Laihem, H Landsman, R Lauer, R Lehmann, D Lennarz, J Lundberg, J Lunemann, J Madsen, P Majumdar, R Maruyama, K Mase, HS Matis, CP McParland, K Meagher, M Merck, P Meszaros, T Meures, E Middell, N Milke, H Miyamoto, T Montaruli, R Morse, SM Movit, R Nahnhauer, JW Nam, P Niessen, DR Nygren, S Odrowski, A Olivas, M Olivo, M Ono, S Panknin, S Patton, L Paul, CP de los Heros, J Petrovic, A Piegsa, D Pieloth, AC Pohl, R Porrata, N Potthoff, PB Price, M Prikockis, GT Przybylski, K Rawlins, P Redl, E Resconi, W Rhode, M Ribordy, A Rizzo, JP Rodrigues, P Roth, F Rothmaier, C Rott, C Roucelle, D Rutledge, B Ruzybayev, Dirk Ryckbosch, HG Sander, S Sarkar, K Schatto, S Schlenstedt, T Schmidt, D Schneider, A Schukraft, O Schulz, M Schunck, D Seckel, B Semburg, SH Seo, Y Sestayo, S Seunarine, A Silvestri, A Slipak, GM Spiczak, C Spiering, M Stamatikos, T Stanev, G Stephens, T Stezelberger, RG Stokstad, MC Stoufer, S Stoyanov, EA Strahler, T Straszheim, GW Sullivan, Q Swillens, I Taboada, A Tamburro, O Tarasova, A Tepe, S Ter-Antonyan, C Terranova, S Tilav, PA Toale, J Tooker, D Tosi, D Turcan, N van Eijndhoven, J Vandenbroucke, Arne Van Overloop, J van Santen, B Voigt, C Walck, T Waldenmaier, M Wallraff, M Walter, C Wendt, S Westerhoff, N Whitehorn, K Wiebe, CH Wiebusch, A Wiedemann, G Wikstrom, DR Williams, R Wischnewski, H Wissing, K Woschnagg, C Xu, XW Xu, G Yodh, and S Yoshida. 2009. “Extending the Search for Neutrino Point Sources with IceCube Above the Horizon.” Physical Review Letters 103 (22).
Vancouver
1.
Abbasi R, Abdou Y, Abu-Zayyad T, Adams J, Aguilar J, Ahlers M, et al. Extending the search for neutrino point sources with IceCube above the horizon. PHYSICAL REVIEW LETTERS. 2009;103(22).
IEEE
[1]
R. Abbasi et al., “Extending the search for neutrino point sources with IceCube above the horizon,” PHYSICAL REVIEW LETTERS, vol. 103, no. 22, 2009.
@article{992797,
  abstract     = {Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.},
  articleno    = {221102},
  author       = {Abbasi, R and Abdou, Yasser and Abu-Zayyad, T and Adams, J and Aguilar, JA and Ahlers, M and Andeen, K and Auffenberg, J and Bai, X and Baker, M and Barwick, SW and Bay, R and Alba, JLB and Beattie, K and Beatty, JJ and Bechet, S and Becker, JK and Becker, KH and Benabderrahmane, ML and Berdermann, J and Berghaus, P and Berley, D and Bernardini, E and Bertrand, D and Besson, DZ and Bissok, M and Blaufuss, E and Boersma, DJ and Bohm, C and Botner, O and Bradley, L and Braun, J and Breder, D and Carson, Michael and Castermans, T and Chirkin, D and Christy, B and Clem, J and Cohen, S and Cowen, DF and D'Agostino, MV and Danninger, M and Day, CT and De Clercq, C and Demirors, L and Depaepe, O and Descamps, Freija and Desiati, P and De Vries-Uiterweerd, Garmt and DeYoung, T and Diaz-Velez, JC and Dreyer, J and Dumm, JP and Duvoort, MR and Edwards, WR and Ehrlich, R and Eisch, J and Ellsworth, RW and Engdegard, O and Euler, S and Evenson, PA and Fadiran, O and Fazely, AR and Feusels, Tom and Filimonov, K and Finley, C and Foerster, MM and Fox, BD and Franckowiak, A and Franke, R and Gaisser, TK and Gallagher, J and Ganugapati, R and Gerhardt, L and Gladstone, L and Goldschmidt, A and Goodman, JA and Gozzini, R and Grant, D and Griesel, T and Gross, A and Grullon, S and Gunasingha, RM and Gurtner, M and Ha, C and Hallgren, A and Halzen, F and Han, K and Hanson, K and Hasegawa, Y and Helbing, K and Herquet, P and Hickford, S and Hill, GC and Hoffman, KD and Homeier, A and Hoshina, K and Hubert, D and Huelsnitz, W and Hulss, JP and Hulth, PO and Hultqvist, K and Hussain, S and Imlay, RL and Inaba, M and Ishihara, A and Jacobsen, J and Japaridze, GS and Johansson, H and Joseph, JM and Kampert, KH and Kappes, A and Karg, T and Karle, A and Kelley, JL and Kemming, N and Kenny, P and Kiryluk, J and Kislat, F and Klein, SR and Knops, S and Kohnen, G and Kolanoski, H and Kopke, L and Koskinen, DJ and Kowalski, M and Kowarik, T and Krasberg, M and Krings, T and Kroll, G and Kuehn, K and Kuwabara, T and Labare, M and Lafebre, S and Laihem, K and Landsman, H and Lauer, R and Lehmann, R and Lennarz, D and Lundberg, J and Lunemann, J and Madsen, J and Majumdar, P and Maruyama, R and Mase, K and Matis, HS and McParland, CP and Meagher, K and Merck, M and Meszaros, P and Meures, T and Middell, E and Milke, N and Miyamoto, H and Montaruli, T and Morse, R and Movit, SM and Nahnhauer, R and Nam, JW and Niessen, P and Nygren, DR and Odrowski, S and Olivas, A and Olivo, M and Ono, M and Panknin, S and Patton, S and Paul, L and de los Heros, CP and Petrovic, J and Piegsa, A and Pieloth, D and Pohl, AC and Porrata, R and Potthoff, N and Price, PB and Prikockis, M and Przybylski, GT and Rawlins, K and Redl, P and Resconi, E and Rhode, W and Ribordy, M and Rizzo, A and Rodrigues, JP and Roth, P and Rothmaier, F and Rott, C and Roucelle, C and Rutledge, D and Ruzybayev, B and Ryckbosch, Dirk and Sander, HG and Sarkar, S and Schatto, K and Schlenstedt, S and Schmidt, T and Schneider, D and Schukraft, A and Schulz, O and Schunck, M and Seckel, D and Semburg, B and Seo, SH and Sestayo, Y and Seunarine, S and Silvestri, A and Slipak, A and Spiczak, GM and Spiering, C and Stamatikos, M and Stanev, T and Stephens, G and Stezelberger, T and Stokstad, RG and Stoufer, MC and Stoyanov, S and Strahler, EA and Straszheim, T and Sullivan, GW and Swillens, Q and Taboada, I and Tamburro, A and Tarasova, O and Tepe, A and Ter-Antonyan, S and Terranova, C and Tilav, S and Toale, PA and Tooker, J and Tosi, D and Turcan, D and van Eijndhoven, N and Vandenbroucke, J and Van Overloop, Arne and van Santen, J and Voigt, B and Walck, C and Waldenmaier, T and Wallraff, M and Walter, M and Wendt, C and Westerhoff, S and Whitehorn, N and Wiebe, K and Wiebusch, CH and Wiedemann, A and Wikstrom, G and Williams, DR and Wischnewski, R and Wissing, H and Woschnagg, K and Xu, C and Xu, XW and Yodh, G and Yoshida, S},
  issn         = {0031-9007},
  journal      = {PHYSICAL REVIEW LETTERS},
  keywords     = {GAMMA-RAYS,TELESCOPE,JETS,DETECTOR},
  language     = {eng},
  number       = {22},
  pages        = {6},
  title        = {Extending the search for neutrino point sources with IceCube above the horizon},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.103.221102},
  volume       = {103},
  year         = {2009},
}

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