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1. First High‐Speed Video Camera Observations of a Lightning Flash Associated With a Downward Terrestrial Gamma‐Ray Flash

Author

R. U. Abbasi, M. M. F. Saba, J. W. Belz, P. R. Krehbiel, W. Rison, N. Kieu, D. R. daSilva, M. A. Stanley, Dan Rodeheffer, J. Remington, J. Mazich, R. LeVon, K. Smout, A. Petrizze, T. Abu‐Zayyad, M. Allen, R. Arimura, E. Barcikowski, D. R. Bergman, S. A. Blake, I. Buckland, B. G. Cheon, M. Chikawa, T. Fujii, K. Fujisue, K. Fujita, R. Fujiwara, M. Fukushima, G. Furlich, N. Globus, R. Gonzalez, W. Hanlon, N. Hayashida, H. He, K. Hibino, R. Higuchi, K. Honda, D. Ikeda, N. Inoue, T. Ishii, H. Ito, D. Ivanov, H. Iwakura, A. Iwasaki, H. M. Jeong, S. Jeong, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, S. Kasami, S. Kawakami, K. Kawata, I. Kharuk, E. Kido, H. B. Kim, J. H. Kim, S. W. Kim, Y. Kimura, I. Komae, Y. Kubota, M. Kuznetsov, Y. J. Kwon, K. H. Lee, B. Lubsandorzhiev, J. P. Lundquist, T. Matsuyama, J. N. Matthews, R. Mayta, I. Myers, S. Nagataki, K. Nakai, R. Nakamura, T. Nakamura, A. Nakazawa, E. Nishio, T. Nonaka, S. Ogio, M. Ohnishi, H. Ohoka, Y. Oku, T. Okuda, Y. Omura, M. Ono, A. Oshima, S. Ozawa, I. H. Park, M. Potts, M. S. Pshirkov, D. C. Rodriguez, C. Rott, G. I. Rubtsov, D. Ryu, H. Sagawa, N. Sakaki, T. Sako, N. Sakurai, K. Sato, T. Seki, K. Sekino, P. D. Shah, Y. Shibasaki, N. Shibata, T. Shibata, J. Shikita, H. Shimodaira, B. K. Shin, H. S. Shin, D. Shinto, J. D. Smith, P. Sokolsky, B. T. Stokes, T. A. Stroman, K. Takahashi, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, K. Tanaka, M. Tanaka, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, R. Tsuda, Y. Tsunesada, S. Udo, T. Uehama, F. Urban, D. Warren, T. Wong, M. Yamamoto, K. Yamazaki, K. Yashiro, F. Yoshida, Y. Zhezher, and Z. Zundel

Subjects
lightning, terrestrial gamma‐ray flashes, cosmic ray detectors, Geophysics. Cosmic physics, QC801-809
Abstract

Abstract In this paper, we present the first high‐speed video observation of a cloud‐to‐ground lightning flash and its associated downward‐directed Terrestrial Gamma‐ray Flash (TGF). The optical emission of the event was observed by a high‐speed video camera running at 40,000 frames per second in conjunction with the Telescope Array Surface Detector, Lightning Mapping Array, interferometer, electric‐field fast antenna, and the National Lightning Detection Network. The cloud‐to‐ground flash associated with the observed TGF was formed by a fast downward leader followed by a very intense return stroke peak current of −154 kA. The TGF occurred while the downward leader was below cloud base, and even when it was halfway in its propagation to ground. The suite of gamma‐ray and lightning instruments, timing resolution, and source proximity offer us detailed information and therefore a unique look at the TGF phenomena.

Published
2023
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2. The energy spectrum of cosmic rays measured by the Telescope Array using 10 years of fluorescence detector data

Author

R.U. Abbasi, Y. Abe, T. Abu-Zayyad, M. Allen, Y. Arai, R. Arimura, E. Barcikowski, J.W. Belz, D.R. Bergman, S.A. Blake, I. Buckland, B.G. Cheon, M. Chikawa, A. Fedynitch, T. Fujii, K. Fujisue, K. Fujita, R. Fujiwara, M. Fukushima, G. Furlich, Z. Gerber, N. Globus, W. Hanlon, N. Hayashida, H. He, R. Hibi, K. Hibino, R. Higuchi, K. Honda, D. Ikeda, N. Inoue, T. Ishii, H. Ito, D. Ivanov, A. Iwasaki, H.M. Jeong, S. Jeong, C.C.H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, S. Kasami, S. Kawakami, K. Kawata, I. Kharuk, E. Kido, H.B. Kim, J.H. Kim, S.W. Kim, Y. Kimura, I. Komae, K. Komori, Y. Kusumori, M. Kuznetsov, Y.J. Kwon, K.H. Lee, M.J. Lee, B. Lubsandorzhiev, J.P. Lundquist, T. Matsuyama, J.A. Matthews, J.N. Matthews, R. Mayta, K. Miyashita, K. Mizuno, M. Mori, M. Murakami, I. Myers, S. Nagataki, K. Nakai, T. Nakamura, E. Nishio, T. Nonaka, S. Ogio, H. Ohoka, N. Okazaki, Y. Oku, T. Okuda, Y. Omura, M. Onishi, M. Ono, A. Oshima, H. Oshima, S. Ozawa, I.H. Park, K.Y. Park, M. Potts, M.S. Pshirkov, J. Remington, D.C. Rodriguez, C. Rott, G.I. Rubtsov, D. Ryu, H. Sagawa, R. Saito, N. Sakaki, T. Sako, N. Sakurai, D. Sato, K. Sato, S. Sato, K. Sekino, P.D. Shah, N. Shibata, T. Shibata, J. Shikita, H. Shimodaira, B.K. Shin, H.S. Shin, D. Shinto, J.D. Smith, P. Sokolsky, B.T. Stokes, T.A. Stroman, Y. Takagi, K. Takahashi, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, K. Tanaka, M. Tanaka, S.B. Thomas, G.B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, R. Tsuda, Y. Tsunesada, S. Udo, F. Urban, I.A. Vaiman, D. Warren, T. Wong, K. Yamazaki, K. Yashiro, F. Yoshida, Y. Zhezher, and Z. Zundel

Subjects
Astronomy and Astrophysics
Published
2023

3. Machine learning based background rejection for Baikal-GVD neutrino telescope

Author

O. Kalashev, I. Kharuk, and G. Rubtsov

Subjects
History, Computer Science Applications, Education
Abstract

Baikal-GVD is a gigaton-scale underwater neutrino telescope currently under construction in Lake Baikal. Its principal components are optical modules, registering photons propagating through the telescope’s working volume. Part of the activations of the optical modules are due to the natural luminescence of the water, and thus appear as noise in the data. We present a neural network, which efficiently rejects this background and reaches 97% signal purity (precision) and 99% survival efficiency (recall) on the Monte-Carlo data. The neural network has a U-net like architecture based on the temporal structure of optical modules activations.

Published
2023

4. ПОИСК НЕЙТРИНО УЛЬТРАВЫСОКИХ ЭНЕРГИЙ ПО ДАННЫМ НАЗЕМНОЙ РЕШЕТКИ ЭКСПЕРИМЕНТА TELESCOPE ARRAY

Author

Taka Tomida, J. Remington, Kenta Yashiro, Yasunori Saito, M. Abe, O. Kalashev, Jonathan Smith, Takeshi Okuda, Igor Tkachev, N. Inoue, M. Ohnishi, Federico R. Urban, Yuichiro Tameda, H. Oda, Akimichi Taketa, T. Suzawa, Naoaki Hayashida, Shingo Kawana, Yasuhiro H. Takahashi, John N. Matthews, Isaac Myers, Vladim Kuzmin, William Hanlon, Elliott Barcikowski, Seok Ho Jeong, K. Nagasawa, B. G. Cheon, Hidemi Ito, Fumiya Shibata, Zach Zundel, J. Yang, S. Kitamura, Dmitri Ivanov, Keijiro Mukai, R. Sahara, John Belz, Y. J. Kwon, Hideyuki Ohoka, Fumio Kakimoto, Toshiyuki Nonaka, Toshitsugu Fujii, Daisuke Ikeda, R. Ishimori, Yuta Tanoue, D. R. Bergman, S. R. Stratton, G. Furlich, Takaaki Ishii, Tiffany Wong, Hideki Tanaka, K. Kadota, Inkyu Park, Motoki Hayashi, Hisono Tokuno, T. K. Sako, J. P. Lundquist, D. C. Rodriguez, Ben Stokes, Toru Nakamura, K. Yamazaki, Hongsu Kim, S. B. Thomas, Masahiro Fukushima, S. Kawakami, K. Hibino, Pierre Sokolsky, Ryo Nakamura, K. H. Lee, Jihee Kim, T.-A. Shibata, Eiji Kido, M. V. Kuznetsov, Kazuhiro Machida, Hiroshi Yamaoka, Keitaro Fujita, M. Takeda, Shigehiro Nagataki, Yana Zhezher, Y. Uchihori, Kei Nakai, Kohei Yada, Gordon Thomson, Tom Stroman, Robert Cady, Kazuo Saito, Charlie Jui, BayarJon Paul Lubsandorzhiev, Hiroyuki Sagawa, Mayuko Minamino, Michiyuki Chikawa, K. Honda, Yasunori Kitamura, Grigory Rubtsov, Masaaki Tanaka, Kalen Martens, M. Takita, H. Yoshii, Bokkyun Shin, Koichi Sekino, Kiyoshi Tanaka, Maxim Pshirkov, Jyunsei Chiba, P. Tinyakov, Dongsu Ryu, Y. Omura, Mai Takamura, Y. Takagi, Samuel Blake, Shoichi Ogio, Priti Shah, Ryuji Takeishi, J. Ogura, M. Allen, K. Kasahara, Shoichi Kishigami, Akitoshi Oshima, Y. Tsunesada, Hideaki Shimodaira, Hyoming Jeong, Masaomi Ono, K. Tsutsumi, Rasha Abbasi, Tareq Abu-Zayyad, L. M. Scott, Y. Hayashi, K. Kawata, M. Yamamoto, Nobuyuki Sakurai, Ryota Onogi, J. H. Kim, A. Di Matteo, Ryota Fujiwara, R. Mayta, Heungsu Shin, Naoto Sakaki, Shigeharu Udo, R. Azuma, H. Kawai, T. Seki, T. Matsuyama, S. Ozawa, and Sergey Troitsky

Subjects
General Physics and Astronomy
Published
2020

5. Deep learning method for identifying mass composition of ultra-high-energy cosmic rays

Author

O. Kalashev, I. Kharuk, M. Kuznetsov, G. Rubtsov, T. Sako, Y. Tsunesada, and Ya. Zhezher

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Computer and information sciences, Computer Science - Machine Learning, FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation, Instrumentation and Methods for Astrophysics (astro-ph.IM), Mathematical Physics, Machine Learning (cs.LG)
Abstract

We introduce a novel method for identifying the mass composition of ultra-high-energy cosmic rays using deep learning. The key idea of the method is to use a chain of two neural networks. The first network predicts the type of a primary particle for individual events, while the second infers the mass composition of an ensemble of events. We apply this method to the Monte-Carlo data for the Telescope Array Surface Detectors readings, on which it yields an unprecedented low error of 7% for 4-component approximation. We also discuss the problems of applying the developed method to the experimental data, and the way they can be resolved., 19 pages, 5 figures

Published
2021

6. Sensitivity of the gamma-ray method for strong primordial magnetic fields

Author

Andrii Neronov, O. Kalashev, Dmitry V. Semikoz, Alexander Korochkin, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)

Subjects
Physics, blazar: spectrum, Cherenkov Telescope Array, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, magnetic field: primordial, Astrophysics::Cosmology and Extragalactic Astrophysics, cosmic background radiation, sensitivity, recombination, Magnetic field, Nuclear magnetic resonance, gamma ray, ionization, Sensitivity (control systems), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; We study the sensitivity reach of the gamma-ray method for measurement of relatively strong cosmological magnetic field with strength in the 1-10 pG range using deep exposure of the nearest hard spectrum blazar Mrk 501 with CTA telescopes. We show that the gamma-ray measurement technique can sense the primordial magnetic field with a strength of up to 10^{−11} G. Combination of the cosmic microwave background and gamma-ray constraints can thus sense the full range of possible cosmological magnetic fields to confirm or rule out their relevance to the problem of the origin of cosmic magnetic fields, as well as their influence on recombination and reionization epochs.

Published
2021

7. Constraints on the diffuse photon flux with energies above 10(18) eV using the surface detector of the Telescope Array experiment

Author

Abbasi, R.U., Abe, M., T., Abu-Zayyad, Allen, M., Azuma, R., Barcikowski, E., Belz, J.W., Bergman, D.R., Blake, S.A., Cady, R., Cheon, B.G., Chiba, J., Chikawa, M., di Matteo, A., Fujii, T., Fujita, K., Fukushima, M., Furlich, G., Goto, T., Hanlon, W., M. Hayashi, Hayashii, Y., Hayashida, N., Hibino, K., Honda, K., Ikeda, D., Inoue, N., Ishii, T., Ishimori, R., Ito, H., Ivanov, D., Jeong, H.M., Jeong, S., Jui, C.C.H., Kadota, K., Kakimoto, F., O. Kalashev, Kasahara, K., Kawai, H., Kawakami, S., Kawana, S., Kawata, K., Kido, E., Kim, H.B., Kim, J.H., J.H. Kim, Kishigamii, S., Kitamura, S., Kitamura, Y., Kuzmin, V., Kuznetsov, M., Y.J. Kwon, Lee, K.H., Lubsandorzhiev, B., Lundquist, J.P., Machida, K., Martens, K., T. Matsuyama, Matthews, J.N., Mayta, R., Minamino, M., Mukai, K., Myers, I., Nagasawa, K., Nagataki, S., Ohnishi, M., Ohoka, H., Okuda, T., Omura, Y., Ono, M., Onogi, R., Oshima, A., Ozawa, S., Park, I.H., Piskunov, M.S., Pshirkov, M.S., Remington, J., Rodriguez, D.C., Rubtsov, G.I., Ryu, D., Sagawa, H., Sahara, R., Saito, K., Saito, Y., Sakaki, N., Sakurai, N., Scott, L.M., Seki, T., Sekino, K., Shah, P.D., Shibata, F., Shibata, T., Shimodaira, H., Shin, B.K., Shin, H.S., Smith, J.D., Sokolsky, P., Stokes, B.T., Stratton, S.R., Stroman, T.A., Suzawa, T., Takagi, Y., Takahashi, Y., Takamura, M., Takeda, M., Takeishi, R., Taketa, A., Takita, M., Tameda, Y., Tanaka, H., Tanaka, K., Tanaka, M., Thomas, S.B., Thomson, G.B., Tinyakov, P., Tkachev, I., Tokuno, H., Tomida, T., Troitsky, S., Tsunesada, Y., Tsutsumi, K., Uchihori, Y., Udo, S., Urban, F., Wong, T., Yamamoto, M., Yamane, R., Yamaoka, H., Yamazaki, K., Yang, J., Yashiro, K., Yoneda, Y., S. Yoshida, Yoshii, H., Zhezher, Y., Zundel, Z., and Uchihori, Yukio

Abstract

We present the results of the search for ultra-high-energy photons with nine years of data from the Telescope Array surface detector. A multivariate classifier is built upon 16 reconstructed parameters of the extensive air shower. These parameters are related to the curvature and the width of the shower front, the steepness of the lateral distribution function, and the timing parameters of the waveforms sensitive to the shower muon content. A total number of two photon candidates found in the search is fully compatible with the expected background. The 95% CL limits on the diffuse flux of the photons with energies greater than 1018.0, 1018.5, 1019.0, 1019.5 and 1020.0 eV are set at the level of 0.067, 0.012, 0.0036, 0.0013, 0.0013km−2yr−1sr−1 correspondingly.

Published
2019

8. Observation of Variations in Cosmic Ray Single Count Rates During Thunderstorms and Implications for Large-Scale Electric Field Changes

Author

R. U. Abbasi, T. Abu-Zayyad, M. Allen, Y. Arai, R. Arimura, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, I. Buckland, R. Cady, B. G. Cheon, J. Chiba, M. Chikawa, T. Fujii, K. Fujisue, K. Fujita, R. Fujiwara, M. Fukushima, R. Fukushima, G. Furlich, N. Globus, R. Gonzalez, W. Hanlon, M. Hayashi, N. Hayashida, K. Hibino, R. Higuchi, K. Honda, N. Husseini, D. Ikeda, T. Inadomi, N. Inoue, T. Ishii, H. Ito, D. Ivanov, H. Iwakura, A. Iwasaki, H. M. Jeong, S. Jeong, H. Johnson, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, S. Kasami, H. Kawai, S. Kawakami, S. Kawana, K. Kawata, I. Kharuk, E. Kido, H. B. Kim, J. H. Kim, M. H. Kim, S. W. Kim, Y. Kimura, S. Kishigami, Y. Kubota, S. Kurisu, V. Kuzmin, M. Kuznetsov, Y. J. Kwon, K. H. Lee, R. LeVon, B. Lubsandorzhiev, J. P. Lundquist, K. Machida, H. Matsumiya, T. Matsuyama, J. N. Matthews, R. Mayta, J. Mazich, M. Minamino, K. Mukai, I. Myers, P. Myers, S. Nagataki, K. Nakai, R. Nakamura, T. Nakamura, Y. Nakamura, A. Nakazawa, E. Nishio, T. Nonaka, K. O’Brien, H. Oda, S. Ogio, M. Ohnishi, H. Ohoka, Y. Oku, T. Okuda, Y. Omura, M. Ono, R. Onogi, A. Oshima, S. Ozawa, I. H. Park, M. Potts, M. S. Pshirkov, J. Remington, D. C. Rodriguez, G. I. Rubtsov, D. Ryu, H. Sagawa, R. Sahara, Y. Saito, N. Sakaki, T. Sako, N. Sakurai, K. Sano, K. Sato, T. Seki, K. Sekino, P. D. Shah, Y. Shibasaki, F. Shibata, N. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, H. S. Shin, D. Shinto, J. D. Smith, P. Sokolsky, N. Sone, B. T. Stokes, T. A. Stroman, Y. Takagi, Y. Takahashi, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, Y. Tanoue, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, R. Tsuda, Y. Tsunesada, Y. Uchihori, S. Udo, T. Uehama, F. Urban, T. Wong, M. Yamamoto, K. Yamazaki, J. Yang, K. Yashiro, F. Yoshida, Y. Yoshioka, Y. Zhezher, and Z. Zundel

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics - Atmospheric and Oceanic Physics, High Energy Physics - Experiment (hep-ex), Astrophysics::High Energy Astrophysical Phenomena, Atmospheric and Oceanic Physics (physics.ao-ph), FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract

We present the first observation by the Telescope Array Surface Detector (TASD) of the effect of thunderstorms on the development of cosmic ray single count rate intensity over a 700 km$^{2}$ area. Observations of variations in the secondary low-energy cosmic ray counting rate, using the TASD, allow us to study the electric field inside thunderstorms, on a large scale, as it progresses on top of the 700 km$^{2}$ detector, without dealing with the limitation of narrow exposure in time and space using balloons and aircraft detectors. In this work, variations in the cosmic ray intensity (single count rate) using the TASD, were studied and found to be on average at the $\sim(0.5-1)\%$ and up to 2\% level. These observations were found to be both in excess and in deficit. They were also found to be correlated with lightning in addition to thunderstorms. These variations lasted for tens of minutes; their footprint on the ground ranged from 6 to 24 km in diameter and moved in the same direction as the thunderstorm. With the use of simple electric field models inside the cloud and between cloud to ground, the observed variations in the cosmic ray single count rate were recreated using CORSIKA simulations. Depending on the electric field model used and the direction of the electric field in that model, the electric field magnitude that reproduces the observed low-energy cosmic ray single count rate variations was found to be approximately between 0.2-0.4 GV. This in turn allows us to get a reasonable insight on the electric field and its effect on cosmic ray air showers inside thunderstorms.

Published
2021
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9. Gamma Ray Showers Observed at Ground Level in Coincidence With Downward Lightning Leaders

Author

Fumiya Shibata, R. W. Springer, Maxim Pshirkov, John Belz, Akitoshi Oshima, Hiroyuki Sagawa, Fumio Kakimoto, D. R. Bergman, Zach Zundel, K. Hibino, Koichi Sekino, K. Kasahara, Y. Tsunesada, Hideaki Shimodaira, Ryo Nakamura, R. LeVon, Hongsu Kim, Kazuo Saito, Shoichi Kishigami, Heungsu Shin, Shunsuke Ozawa, Mayuko Minamino, K. Honda, Hidemi Ito, K. Martens, Toshitsugu Fujii, M. Yamamoto, Y. Yoneda, N. Inoue, G. Vasiloff, Ryuji Takeishi, Masato Takita, Nobuyuki Sakurai, Masaomi Ono, Priti Shah, Hideki Tanaka, Grigory Rubtsov, M. Ohnishi, H. Yoshii, Ryota Onogi, Ben Stokes, Daisuke Ikeda, Elliott Barcikowski, Sergey Troitsky, Masaaki Tanaka, T. Matuyama, Vladim Kuzmin, Jyunsei Chiba, Dongsu Ryu, M. Allen, Helio Takai, Takayuki Tomida, Dmitri Ivanov, Tiffany Wong, B. G. Cheon, Keijiro Mukai, S. Jeong, Masaki Fukushima, B. K. Shin, K. Oki, Federico R. Urban, J. Remington, S. Udo, C. C. H. Jui, Tareq Abu-Zayyad, R. Yamane, Peter Tinyakov, Samuel Blake, Shoichi Ogio, Rasha Abbasi, William Rison, H. Kawai, Michiyuki Chikawa, M. Byrne, Naoaki Hayashida, S. Kawakami, Kiyoshi Tanaka, S. B. Thomas, Akimichi Taketa, Y. Hayashi, Toru Nakamura, K. Kawata, T. Seki, Kenichi Kadota, J. Lan, Igor Tkachev, R. Cady, J. P. Lundquist, G. Furlich, Takaaki Ishii, D. Rodeheffer, Toshiyuki Nonaka, T.-A. Shibata, Gordon Thomson, S. Yoshida, Hiroshi Yamaoka, Tom Stroman, Naoto Sakaki, Kenta Yashiro, D. C. Rodriguez, Isaac Myers, Inkyu Park, Y. Uchihori, H. Tokuno, K. Yamazaki, J. D. Smith, Yuichiro Tameda, John N. Matthews, William Hanlon, T. Okuda, J. H. Kim, J. Yang, Y. J. Kwon, Hideyuki Ohoka, Paul R. Krehbiel, T. Goto, Eiji Kido, Pierre Sokolsky, Kazuhiro Machida, M. Takeda, Shigehiro Nagataki, R. J. Thomas, and O. Kalashev

Subjects
Atmospheric Science, 010504 meteorology & atmospheric sciences, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Radiation, 01 natural sciences, High Energy Physics - Experiment, law.invention, Telescope, High Energy Physics - Experiment (hep-ex), Electron avalanche, law, 0103 physical sciences, Earth and Planetary Sciences (miscellaneous), Cosmic-ray observatory, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Lightning detection, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Lightning, Physics - Atmospheric and Oceanic Physics, Geophysics, 13. Climate action, Space and Planetary Science, Atmospheric and Oceanic Physics (physics.ao-ph), Satellite, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Bursts of gamma ray showers have been observed in coincidence with downward propagating negative leaders in lightning flashes by the Telescope Array Surface Detector (TASD). The TASD is a 700~square kilometer cosmic ray observatory located in southwestern Utah, U.S.A. In data collected between 2014 and 2016, correlated observations showing the structure and temporal development of three shower-producing flashes were obtained with a 3D lightning mapping array, and electric field change measurements were obtained for an additional seven flashes, in both cases co-located with the TASD. National Lightning Detection Network (NLDN) information was also used throughout. The showers arrived in a sequence of 2--5 short-duration ($\le$10~$\mu$s) bursts over time intervals of several hundred microseconds, and originated at an altitude of $\simeq$3--5 kilometers above ground level during the first 1--2 ms of downward negative leader breakdown at the beginning of cloud-to-ground lightning flashes. The shower footprints, associated waveforms and the effect of atmospheric propagation indicate that the showers consist primarily of downward-beamed gamma radiation. This has been supported by GEANT simulation studies, which indicate primary source fluxes of $\simeq$$10^{12}$--$10^{14}$ photons for $16^{\circ}$ half-angle beams. We conclude that the showers are terrestrial gamma-ray flashes (TGFs), similar to those observed by satellites, but that the ground-based observations are more representative of the temporal source activity and are also more sensitive than satellite observations, which detect only the most powerful TGFs.

Published
2018

10. The bursts of high energy events observed by the telescope array surface detector

Author

Hiroshi Yamaoka, T. Suzawa, Robert M. Anderson, Hideaki Shimodaira, Isaac Myers, M. Abe, Kenta Yashiro, T. Goto, Elliott Barcikowski, Dmitri Ivanov, Keijiro Mukai, Maxim Pshirkov, Sergey Troitsky, A. L. Sampson, Takaaki Ishii, Kanako Yamazaki, Priti Shah, K. Tsutsumi, S. Kitamura, Fumiya Shibata, D. C. Rodriguez, Hidemi Ito, S. Kawakami, J. P. Lundquist, Keiji Saito, Igor Tkachev, R. Ishimori, John Belz, R. W. Springer, Pierre Sokolsky, Naoaki Hayashida, Akimichi Taketa, Ben Stokes, K. Oki, Koichi Sekino, H. Yoshii, Tareq Abu-Zayyad, R. Yamane, Federico R. Urban, Kiyoshi Tanaka, Y. Yoneda, N. Inoue, M. Ohnishi, Michiyuki Chikawa, Hiroyuki Sagawa, R. Zollinger, S. Udo, C. C. H. Jui, Heungsu Shin, M. Takeda, Shigehiro Nagataki, Ryuji Takeishi, Akitoshi Oshima, Y. Uchihori, Y. J. Kwon, Hideyuki Ohoka, K. Nagasawa, S. B. Thomas, Tomohiro Matsuda, H. Kawai, Mai Takamura, T.-A. Shibata, Fumio Kakimoto, Peter Tinyakov, Gordon Thomson, K. Hibino, Samuel Blake, Byung Gu Cheon, Tom Stroman, Robert Cady, Shoichi Ogio, Zach Zundel, Hang Bae Kim, G. Vasiloff, L. M. Scott, J. Ogura, K. Martens, Hideki Tanaka, Jyunsei Chiba, Dongsu Ryu, B. K. Shin, Takayuki Tomida, Masato Takita, Mayuko Minamino, K. Honda, Yasunori Kitamura, Rasha Abbasi, A. Nozato, Y. Hayashi, Yoshiki Tsunesada, Daisuke Ikeda, M. Allen, Inkyu Park, S. R. Stratton, K. Kawata, Masaaki Tanaka, Nobuyuki Sakurai, Tiffany Wong, Masaki Fukushima, Douglas Bergman, Takahiro Fujii, V. Kuzmin, Ryota Onogi, J. H. Kim, S. Yoshida, Naoto Sakaki, O. Kalashev, Toru Nakamura, Eiji Kido, Kazuhiro Machida, Kenichi Kadota, T. Matsuyama, S. Ozawa, Yasunori Saito, K. Kasahara, Shoichi Kishigami, R. Azuma, Yuichiro Tameda, John N. Matthews, Masaomi Ono, G. Rubtsov, Shingo Kawana, William Hanlon, T. Okuda, J. Yang, H. Tokuno, J. D. Smith, J. Lan, and Toshiyuki Nonaka

Subjects
Physics, 010504 meteorology & atmospheric sciences, Gamma ray, General Physics and Astronomy, Astronomy, Cosmic ray, Astrophysics, 01 natural sciences, Lightning, Particle detector, law.invention, Telescope, Air shower, law, 0103 physical sciences, Ultra-high-energy cosmic ray, 010306 general physics, 0105 earth and related environmental sciences, Terrestrial gamma-ray flash
Abstract

The Telescope Array (TA) experiment is designed to detect air showers induced by ultra high energy cosmic rays. The TA ground Surface particle Detector (TASD) observed several short-time bursts of air shower like events. These bursts are not likely due to chance coincidence between single shower events. The expectation of chance coincidence is less than 10 − 4 for five-year's observation. We checked the correlation between these bursts of events and lightning data, and found evidence for correlations in timing and position. Some features of the burst events are similar to those of a normal cosmic ray air shower, and some are not. On this paper, we report the observed bursts of air shower like events and their correlation with lightning.

Published
2017

11. First upper limits on the radar cross section of cosmic-ray induced extensive air showers

Author

John Belz, Eiji Kido, Nobuyuki Sakurai, Fumiya Shibata, Kazuhiro Machida, R. Ishimori, Takahiro Fujii, Helio Takai, M. Abou Bakr Othman, Maxim Pshirkov, J. H. Kim, W. R. Cho, C. Jayanthmurthy, O. Kalashev, R. W. Springer, Peter Tinyakov, Samuel Blake, Shoichi Ogio, Charlie Jui, Mayuko Minamino, K. Honda, Yasunori Kitamura, Masaaki Tanaka, G. Vasiloff, J. P. Lundquist, Toru Nakamura, Jyunsei Chiba, Kenichi Kadota, Akitoshi Oshima, Dongsu Ryu, Ryuji Takeishi, M. J. Chae, S. Kitamura, Hidemi Ito, K. Nagasawa, Y. Uchihori, Hideaki Shimodaira, Hiroyuki Sagawa, Fumio Kakimoto, T. Matsuyama, D. Z. Besson, M. Allen, Y. J. Kwon, Michiyuki Chikawa, Priti Shah, T. Suzawa, Hideyuki Ohoka, Isaac Myers, K. Oki, Y. Yoneda, N. Inoue, S. I. Lim, M. Ohnishi, Tomohiro Matsuda, S. Prohira, Masato Takita, Suresh Venkatesh, K. Yamazaki, J. Ogura, Mai Takamura, Tareq Abu-Zayyad, R. Yamane, Ahmad RezazadehReyhani, Toshiyuki Nonaka, T. Goto, S. Udo, R. Azuma, Rasha Abbasi, Hiroshi Yamaoka, Pierre Sokolsky, Yuichiro Tameda, B. G. Cheon, John N. Matthews, L. M. Scott, Zach Zundel, Behrouz Farhang-Boroujeny, Takaaki Ishii, Bokkyun Shin, A. Nozato, Y. Hayashi, Sergey Troitsky, Hongsu Kim, A. L. Sampson, K. Kawata, D. C. Rodriguez, V. Kuzmin, S. Kawakami, Akimichi Taketa, K. Martens, H. Kawai, S. Yoshida, Hideki Tanaka, M. Takeda, Daisuke Ikeda, M. Byrne, S. B. Thomas, S. R. Stratton, Shigehiro Nagataki, Tiffany Wong, Masaki Fukushima, J. Lan, Douglas Bergman, Ross Anderson, Kiyoshi Tanaka, Kenta Yashiro, K. Tsutsumi, R. Zollinger, Naoaki Hayashida, M. Abe, S. Kunwar, Igor Tkachev, R. Cady, David Schurig, K. Hibino, H. Yoshii, Y. Tsunesada, Shunsuke Ozawa, Ben Stokes, Elliott Barcikowski, Dmitri Ivanov, Keijiro Mukai, Federico R. Urban, T.-A. Shibata, Gordon Thomson, Tom Stroman, Inkyu Park, K. Kasahara, Masaomi Ono, G. Rubtsov, Takayuki Tomida, W.H. Gillman, H. Tokuno, J. D. Smith, Shingo Kawana, William Hanlon, T. Okuda, J. Yang, and J. C. Hanson

Subjects
Physics, Radar cross-section, Physics::Instrumentation and Detectors, Pulse-Doppler radar, business.industry, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, 01 natural sciences, law.invention, Continuous-wave radar, Radar engineering details, Optics, Radar astronomy, law, Radar imaging, 0103 physical sciences, Radar, Radar display, Astrophysics - Instrumentation and Methods for Astrophysics, 010306 general physics, business, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Remote sensing
Abstract

TARA (Telescope Array Radar) is a cosmic ray radar detection experiment colocated with Telescope Array, the conventional surface scintillation detector (SD) and fluorescence telescope detector (FD) near Delta, Utah, U.S.A. The TARA detector combines a 40 kW, 54.1 MHz VHF transmitter and high-gain transmitting antenna which broadcasts the radar carrier over the SD array and within the FD field of view, towards a 250 MS/s DAQ receiver. TARA has been collecting data since 2013 with the primary goal of observing the radar signatures of extensive air showers (EAS). Simulations indicate that echoes are expected to be short in duration (~10 microseconds) and exhibit rapidly changing frequency, with rates on the order of 1 MHz/microsecond. The EAS radar cross-section (RCS) is currently unknown although it is the subject of over 70 years of speculation. A novel signal search technique is described in which the expected radar echo of a particular air shower is used as a matched filter template and compared to waveforms obtained by triggering the radar DAQ using the Telescope Array fluorescence detector. No evidence for the scattering of radio frequency radiation by EAS is obtained to date. We report the first quantitative RCS upper limits using EAS that triggered the Telescope Array Fluorescence Detector., Comment: 21 pages, 30 figures

Published
2017

12. Search for EeV protons of galactic origin

Author

R. Ishimori, R. Zollinger, Kenta Yashiro, Yasunori Saito, Yuichiro Tameda, John N. Matthews, K. Nagasawa, J. Yang, Y. J. Kwon, Eiji Kido, Hideyuki Ohoka, Kazuhiro Machida, J. Lan, S. Kitamura, Masato Takita, M. Abe, Byung Gu Cheon, Hidemi Ito, John Belz, Toshiyuki Nonaka, Elliott Barcikowski, Takayuki Tomida, Igor Tkachev, R. Cady, Motoki Hayashi, J. P. Lundquist, Ryuji Takeishi, BayarJon Paul Lubsandorzhiev, K. Hibino, Ben Stokes, Inkyu Park, T. Matsuyama, L. M. Scott, S. Ozawa, Dmitri Ivanov, Keijiro Mukai, Hiroshi Yamaoka, Tomohiro Matsuda, Mayuko Minamino, K. Honda, Y. Yoneda, N. Inoue, Federico R. Urban, A. Nozato, Y. Hayashi, K. Oki, M. Ohnishi, Yasunori Kitamura, T. Goto, S. Udo, C. C. H. Jui, K. Kawata, M. Allen, Douglas Bergman, Yoshiki Tsunesada, Nobuyuki Sakurai, Masaaki Tanaka, Sergey Troitsky, Daisuke Ikeda, Hideaki Shimodaira, Toru Nakamura, Kenichi Kadota, S. R. Stratton, H. Kawai, K. Kasahara, Akitoshi Oshima, S. B. Thomas, O. Kalashev, Shoichi Kishigami, Koichi Sekino, Kanako Yamazaki, Takahiro Fujii, Tiffany Wong, Priti Shah, K. Saito, Masaki Fukushima, Masaomi Ono, Jyunsei Chiba, Dongsu Ryu, B. K. Shin, Grigory Rubtsov, K. Martens, Hideki Tanaka, S. Yoshida, Y. Takahashi, Mai Takamura, Ryota Onogi, J. H. Kim, Vladim Kuzmin, H. Yoshii, Tareq Abu-Zayyad, A. H. Tirone, R. Yamane, Kiyoshi Tanaka, J. Ogura, Naoto Sakaki, Naoaki Hayashida, Peter Tinyakov, Samuel Blake, Maxim Pshirkov, Shoichi Ogio, T.-A. Shibata, Gordon Thomson, Tom Stroman, Zach Zundel, Pierre Sokolsky, Hang Bae Kim, Akimichi Taketa, Heungsu Shin, Rasha Abbasi, M. Takeda, Fumio Kakimoto, Shigehiro Nagataki, Michiyuki Chikawa, K. Tsutsumi, R. Azuma, S. Kawakami, Hiroyuki Sagawa, Y. Uchihori, T. Suzawa, Isaac Myers, Takaaki Ishii, D. C. Rodriguez, Shingo Kawana, William Hanlon, T. Okuda, H. Tokuno, J. D. Smith, and Fumiya Shibata

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Galactic anticenter, FOS: Physical sciences, Astronomy, Astronomy and Astrophysics, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Galactic plane, 01 natural sciences, Galactic tide, law.invention, Telescope, law, 0103 physical sciences, Galactic corona, Astrophysics - High Energy Astrophysical Phenomena, Anisotropy, Longitude, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

Cosmic rays in the energy range $10^{18.0}$ - $10^{18.5}$ eV are thought to have a light, probably protonic, composition. To study their origin one can search for anisotropy in their arrival directions. Extragalactic cosmic rays should be isotropic, but galactic cosmic rays of this type should be seen mostly along the galactic plane, and there should be a shortage of events coming from directions near the galactic anticenter. This is due to the fact that, under the influence of the galactic magnetic field, the transition from ballistic to diffusive behavior is well advanced, and this qualitative picture persists over the whole energy range. Guided by models of the galactic magnetic field that indicate that the enhancement along the galactic plane should have a standard deviation of about 20$^\circ$ in galactic latitude, and the deficit in the galactic anticenter direction should have a standard deviation of about 50$^\circ$ in galactic longitude, we use the data of the Telescope Array surface detector in $10^{18.0}$ to $10^{18.5}$ eV energy range to search for these effects. The data are isotropic. Neither an enhancement along the galactic plane nor a deficit in the galactic anticenter direction is found. Using these data we place an upper limit on the fraction of EeV cosmic rays of galactic origin at 1.3% at 95% confidence level.

Published
2017

13. Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-high-energy Cosmic Rays

Author

R. U. Abbasi, M. Abe, T. Abu-Zayyad, M. Allen, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, R. Cady, B. G. Cheon, J. Chiba, M. Chikawa, A. di Matteo, T. Fujii, K. Fujisue, K. Fujita, R. Fujiwara, M. Fukushima, G. Furlich, W. Hanlon, M. Hayashi, N. Hayashida, K. Hibino, R. Higuchi, K. Honda, D. Ikeda, T. Inadomi, N. Inoue, T. Ishii, R. Ishimori, H. Ito, D. Ivanov, H. Iwakura, H. M. Jeong, S. Jeong, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, S. Kasami, H. Kawai, S. Kawakami, S. Kawana, K. Kawata, E. Kido, H. B. Kim, J. H. Kim, M. H. Kim, S. W. Kim, S. Kishigami, V. Kuzmin, M. Kuznetsov, Y. J. Kwon, K. H. Lee, B. Lubsandorzhiev, J. P. Lundquist, K. Machida, H. Matsumiya, T. Matsuyama, J. N. Matthews, R. Mayta, M. Minamino, K. Mukai, I. Myers, S. Nagataki, K. Nakai, R. Nakamura, T. Nakamura, Y. Nakamura, T. Nonaka, H. Oda, S. Ogio, M. Ohnishi, H. Ohoka, Y. Oku, T. Okuda, Y. Omura, M. Ono, R. Onogi, A. Oshima, S. Ozawa, I. H. Park, M. S. Pshirkov, J. Remington, D. C. Rodriguez, G. Rubtsov, D. Ryu, H. Sagawa, R. Sahara, Y. Saito, N. Sakaki, T. Sako, N. Sakurai, K. Sano, T. Seki, K. Sekino, P. D. Shah, F. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, H. S. Shin, J. D. Smith, P. Sokolsky, N. Sone, B. T. Stokes, T. A. Stroman, T. Suzawa, Y. Takagi, Y. Takahashi, M. Takamura, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, Y. Tanoue, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, Y. Tsunesada, Y. Uchihori, S. Udo, T. Uehama, F. Urban, T. Wong, K. Yada, M. Yamamoto, K. Yamazaki, J. Yang, K. Yashiro, M. Yosei, Y. Zhezher, and Z. Zundel

Subjects
Physics, 010504 meteorology & atmospheric sciences, High-energy astronomy, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Astronomy and Astrophysics, Cosmic ray, Astrophysics, 01 natural sciences, Galaxy, Spectral line, Magnetic field, Space and Planetary Science, Sky, 0103 physical sciences, Ultra-high-energy cosmic ray, Anisotropy, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, media_common
Abstract

Evidence for a large-scale supergalactic cosmic-ray multiplet (arrival directions correlated with energy) structure is reported for ultra-high-energy cosmic-ray (UHECR) energies above 1019 eV using 7 years of data from the Telescope Array (TA) surface detector and updated to 10 years. Previous energy–position correlation studies have made assumptions regarding magnetic field shapes and strength, and UHECR composition. Here the assumption tested is that, because the supergalactic plane is a fit to the average matter density of the local large-scale structure, UHECR sources and intervening extragalactic magnetic fields are correlated with this plane. This supergalactic deflection hypothesis is tested by the entire field-of-view (FOV) behavior of the strength of intermediate-scale energy–angle correlations. These multiplets are measured in spherical cap section bins (wedges) of the FOV to account for coherent and random magnetic fields. The structure found is consistent with supergalactic deflection, the previously published energy spectrum anisotropy results of the TA (the Hotspot and Coldspot), and toy-model simulations of a supergalactic magnetic sheet. The seven year data posttrial significance of this supergalactic structure of multiplets appearing by chance, on an isotropic sky, is found by Monte Carlo simulation to be 4.2σ. The 10 years of data posttrial significance is 4.1σ. Furthermore, the starburst galaxy M82 is shown to be a possible source of the TA Hotspot, and an estimate of the supergalactic magnetic field using UHECR measurements is presented.

Published
2020

14. Depth of Ultra High Energy Cosmic Ray Induced Air Shower Maxima Measured by the Telescope Array Black Rock and Long Ridge FADC Fluorescence Detectors and Surface Array in Hybrid Mode

Author

R. Azuma, M. Yamamoto, Nobuyuki Sakurai, Ryota Onogi, A. Di Matteo, R. Mayta, B. G. Cheon, Fumiya Shibata, K. Martens, Hideki Tanaka, R. Ishimori, K. H. Lee, M. Abe, T.-A. Shibata, Gordon Thomson, Tom Stroman, Robert Cady, H. Tokuno, S. Kitamura, Priti Shah, T. Goto, K. Tsutsumi, Hideaki Shimodaira, Hyoming Jeong, Rasha Abbasi, S. Kawakami, Akimichi Taketa, Hidemi Ito, Jyunsei Chiba, Dongsu Ryu, J. D. Smith, J. Ogura, Toshiyuki Nonaka, Kiyoshi Tanaka, Akitoshi Oshima, Y. Takagi, G. Furlich, Takaaki Ishii, Shunsuke Ozawa, O. Kalashev, BayarJon Paul Lubsandorzhiev, Hiroshi Yamaoka, Mayuko Minamino, K. Honda, Y. Zhezher, Hiroyuki Sagawa, Keitaro Fujita, Yasunori Kitamura, Peter Tinyakov, Samuel Blake, D. C. Rodriguez, Shoichi Ogio, Ben Stokes, Toshitsugu Fujii, T. Matsuyama, Elliott Barcikowski, B. K. Shin, K. Yamazaki, Dmitri Ivanov, T. Suzawa, M. Allen, Masaaki Tanaka, K. Hibino, R. Sahara, Heungsu Shin, Zach Zundel, Ryo Nakamura, Keijiro Mukai, Isaac Myers, Kazuo Saito, Inkyu Park, Hongsu Kim, Pierre Sokolsky, S. Yoshida, Eiji Kido, Naoto Sakaki, Grigory Rubtsov, M. V. Kuznetsov, M. Takeda, John Belz, Vladim Kuzmin, H. Yoshii, Kazuhiro Machida, Shigehiro Nagataki, S. Jeong, Michiyuki Chikawa, H. Kawai, Tareq Abu-Zayyad, R. Yamane, K. Nagasawa, Douglas Bergman, Y. J. Kwon, Hideyuki Ohoka, Yasunori Saito, T. Seki, Yoshiki Tsunesada, Daisuke Ikeda, S. R. Stratton, Y. Uchihori, L. M. Scott, Tiffany Wong, R. Takeishi, Masaki Fukushima, Toru Nakamura, Y. Hayashi, Yuichiro Tameda, K. Kawata, John N. Matthews, Masato Takita, Kenichi Kadota, Sergey Troitsky, J. H. Kim, Y. Omura, Shingo Kawana, Naoaki Hayashida, William Hanlon, Igor Tkachev, T. Okuda, J. Yang, H. Oda, Kenta Yashiro, Y. Yoneda, N. Inoue, M. Ohnishi, Federico R. Urban, S. Udo, C. C. H. Jui, S. B. Thomas, Takayuki Tomida, K. Kasahara, Shoichi Kishigami, Masaomi Ono, Maxim Pshirkov, Motoki Hayashi, J. P. Lundquist, Koichi Sekino, Y. Takahashi, Mai Takamura, and Fumio Kakimoto

Subjects
Astrophysics::High Energy Astrophysical Phenomena, chemistry.chemical_element, FOS: Physical sciences, Cosmic ray, 7. Clean energy, 01 natural sciences, law.invention, Telescope, Optics, Observatory, law, 0103 physical sciences, Ultra-high-energy cosmic ray, 010303 astronomy & astrophysics, Helium, Astroparticle physics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, business.industry, Astronomy and Astrophysics, Air shower, chemistry, 13. Climate action, Space and Planetary Science, Ridge (meteorology), Astrophysics - High Energy Astrophysical Phenomena, business
Abstract

The Telescope Array observatory utilizes fluorescence detectors and surface detectors to observe air showers produced by ultra high energy cosmic rays in the Earth's atmosphere. Cosmic ray events observed in this way are termed hybrid data. The depth of air shower maximum is related to the mass of the primary particle that generates the shower. This paper reports on shower maxima data collected over 8.5 years using the Black Rock Mesa and Long Ridge fluorescence detectors in conjunction with the array of surface detectors. We compare the means and standard deviations of the observed $X_{\mathrm{max}}$ distributions with Monte Carlo $X_{\mathrm{max}}$ distributions of unmixed protons, helium, nitrogen, and iron, all generated using the QGSJet~II-04 hadronic model. We also perform an unbinned maximum likelihood test of the observed data, which is subjected to variable systematic shifting of the data $X_{\mathrm{max}}$ distributions to allow us to test the full distributions, and compare them to the Monte Carlo to see which elements are not compatible with the observed data. For all energy bins, QGSJet~II-04 protons are found to be compatible with Telescope Array hybrid data at the 95% confidence level after some systematic $X_{\mathrm{max}}$ shifting of the data. Three other QGSJet~II-04 elements are found to be compatible using the same test procedure in an energy range limited to the highest energies where data statistics are sparse., Comment: 39 pages, 18 figures, 5 tables, published in The Astrophysical Journal. This is a peer-reviewed, un-copyedited version of an article published in The Astrophysical Journal. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.3847/1538-4357/aabad7

Published
2018
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15. Evidence of Intermediate-Scale Energy Spectrum Anisotropy of Cosmic Rays E$\geq$10$^{19.2}$ eV with the Telescope Array Surface Detector

Author

N. Inoue, M. Ohnishi, R. Sahara, Toru Nakamura, S. Udo, Kenichi Kadota, Maxim Pshirkov, K. Kasahara, M. Abe, Shoichi Kishigami, T. Goto, Toshiyuki Nonaka, Zach Zundel, S. B. Thomas, Fumio Kakimoto, Masaomi Ono, Jyunsei Chiba, Charlie Jui, Dongsu Ryu, B. K. Shin, Hiroshi Yamaoka, Yoshiki Tsunesada, Daisuke Ikeda, Kenta Yashiro, Keitaro Fujita, BayarJon Paul Lubsandorzhiev, Ben Stokes, S. R. Stratton, Y. Takagi, Tiffany Wong, Mayuko Minamino, K. Honda, Masaki Fukushima, H. Tokuno, Yasunori Kitamura, K. Martens, Masato Takita, Hideki Tanaka, Takayuki Tomida, Masaaki Tanaka, J. D. Smith, Fumiya Shibata, Sergey Troitsky, S. Kitamura, R. Ishimori, Keiji Saito, Igor Tkachev, Michiyuki Chikawa, Eiji Kido, M. V. Kuznetsov, D. R. Bergman, H. Oda, Kazuhiro Machida, Hidemi Ito, Pierre Sokolsky, Y. Uchihori, Y. J. Kwon, Hideyuki Ohoka, R. Takeishi, Yasunori Saito, Shigehiro Nagataki, Akitoshi Oshima, T. Matsuyama, Yana Zhezher, T. Suzawa, Shunsuke Ozawa, Shingo Kawana, Yuichiro Tameda, John N. Matthews, Priti Shah, O. Kalashev, Vladim Kuzmin, William Hanlon, J. Ogura, F. Urban, S. Jeong, Isaac Myers, Motoki Hayashi, Peter Tinyakov, J. P. Lundquist, Samuel Blake, Shoichi Ogio, T. Okuda, J. Yang, M. Allen, Y. Omura, Naoaki Hayashida, Koichi Sekino, Elliott Barcikowski, K. Nagasawa, Dmitri Ivanov, Y. Takahashi, Mai Takamura, G. Furlich, Takaaki Ishii, Keijiro Mukai, D. C. Rodriguez, S. Yoshida, Naoto Sakaki, Rasha Abbasi, Kiyoshi Tanaka, John Belz, R. Azuma, Inkyu Park, L. M. Scott, A. Nozato, Y. Hayashi, K. Kawata, Hideaki Shimodaira, Hyoming Jeong, K. H. Lee, Tareq Abu-Zayyad, Hiroyuki Sagawa, T.-A. Shibata, R. Yamane, Gordon Thomson, Ryo Nakamura, Tom Stroman, Robert Cady, Hongsu Kim, Akimichi Taketa, Grigory Rubtsov, M. Yamamoto, H. Yoshii, Nobuyuki Sakurai, K. Yamazaki, Takahiro Fujii, Ryota Onogi, J. H. Kim, A. Di Matteo, B. G. Cheon, R. Mayta, K. Hibino, S. Kawakami, Heungsu Shin, K. Tsutsumi, H. Kawai, T. Seki, and Y. Yoneda

Subjects
Astroparticle physics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Detector, Monte Carlo method, Isotropy, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Poisson distribution, 01 natural sciences, law.invention, Telescope, symbols.namesake, Space and Planetary Science, law, 0103 physical sciences, symbols, Anisotropy, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics
Abstract

An intermediate-scale energy spectrum anisotropy has been found in the arrival directions of ultra-high energy cosmic rays of energies above $10^{19.2}$ eV in the northern hemisphere, using 7 years of data from the Telescope Array surface detector. A relative energy distribution test is done comparing events inside oversampled spherical caps of equal exposure, to those outside, using the Poisson likelihood ratio. The center of maximum significance is at $9^h$$16^m$, $45^{\circ}$. and has a deficit of events with energies $10^{19.2}$$\leq$$E$$

Published
2018
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16. Mass composition of ultra-high-energy cosmic rays with the Telescope Array Surface Detector Data

Author

J. Remington, Koichi Sekino, S. Kitamura, Hidemi Ito, M. Yamamoto, Nobuyuki Sakurai, Ryota Onogi, A. Di Matteo, R. Mayta, Naoaki Hayashida, J. H. Kim, H. Tokuno, B. G. Cheon, Y. Takahashi, Mai Takamura, Pierre Sokolsky, Y. Omura, T. Suzawa, J. D. Smith, S. Yoshida, Naoto Sakaki, M. Takeda, Shigehiro Nagataki, T. Goto, Douglas Bergman, K. Nagasawa, Toshitsugu Fujii, K. Hibino, R. Azuma, Takayuki Tomida, BayarJon Paul Lubsandorzhiev, Kenta Yashiro, Yasunori Saito, Ryo Nakamura, Mayuko Minamino, K. Honda, Isaac Myers, Yasunori Kitamura, S. Kawakami, Kazuo Saito, O. Kalashev, K. Tsutsumi, Fumio Kakimoto, John Belz, Yuichiro Tameda, John N. Matthews, K. Martens, Toru Nakamura, Grigory Rubtsov, Maxim S. Piskunov, H. Yoshii, Masaaki Tanaka, Priti Shah, Fumiya Shibata, R. Ishimori, Kenichi Kadota, Hideki Tanaka, T. Matsuyama, L. M. Scott, Michiyuki Chikawa, K. Yamazaki, Hiroyuki Sagawa, Kohei Yada, Y. Hayashi, Shingo Kawana, R. Sahara, K. H. Lee, T.-A. Shibata, Gordon Thomson, Tom Stroman, Robert Cady, Y. J. Kwon, Hideyuki Ohoka, Elliott Barcikowski, Toshiyuki Nonaka, Dmitri Ivanov, Motoki Hayashi, M. Allen, K. Kawata, S. Ozawa, William Hanlon, J. P. Lundquist, Jyunsei Chiba, Dongsu Ryu, K. Kasahara, Shoichi Kishigami, Daisuke Ikeda, Keijiro Mukai, S. R. Stratton, G. Furlich, Takaaki Ishii, Hiroshi Yamaoka, Keitaro Fujita, Masato Takita, T. Okuda, J. Yang, Hongsu Kim, Masaomi Ono, B. K. Shin, Hideaki Shimodaira, Hyoming Jeong, Tiffany Wong, R. Takeishi, Heungsu Shin, Inkyu Park, Masaki Fukushima, Maxim Pshirkov, D. C. Rodriguez, Akimichi Taketa, Y. Takagi, Eiji Kido, Rasha Abbasi, M. V. Kuznetsov, Kazuhiro Machida, Kiyoshi Tanaka, H. Kawai, Igor Tkachev, J. Ogura, Tareq Abu-Zayyad, R. Yamane, Vladim Kuzmin, T. Seki, S. Jeong, Zach Zundel, Yana Zhezher, Peter Tinyakov, Samuel Blake, Shoichi Ogio, Y. Uchihori, H. Oda, Ben Stokes, M. Abe, Y. Yoneda, N. Inoue, M. Ohnishi, Federico R. Urban, Akitoshi Oshima, Y. Tsunesada, S. Udo, C. C. H. Jui, S. B. Thomas, and Sergey Troitsky

Subjects
Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Library science, FOS: Physical sciences, Mass composition, 01 natural sciences, Promotion (rank), State (polity), Work (electrical), George (robot), 0103 physical sciences, Science policy, High Energy Physics::Experiment, Ultrahigh energy, 010306 general physics, Astrophysics - High Energy Astrophysical Phenomena, Administration (government), media_common
Abstract

The results on ultra-high-energy cosmic rays (UHECR) mass composition obtained with the Telescope Array surface detector are presented. The analysis employs the boosted decision tree (BDT) multivariate analysis built upon 14 observables related to both the properties of the shower front and the lateral distribution function. The multivariate classifier is trained with Monte-Carlo sets of events induced by the primary protons and iron. An average atomic mass of UHECR is presented for energies $10^{18.0}-10^{20.0}\ \mbox{eV}$. The average atomic mass of primary particles shows no significant energy dependence and corresponds to $\langle \ln A \rangle = 2.0 \pm 0.1 (stat.) \pm 0.44 (syst.)$. The result is compared to the mass composition obtained by the Telescope Array with $\mbox{X}_{\mbox{max}}$ technique along with the results of other experiments. Possible systematic errors of the method are discussed., Comment: 11 pages, 9 figures

Published
2018
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17. The hybrid energy spectrum of Telescope Array’s Middle Drum Detector and surface array

Author

R.U. Abbasi, M. Abe, T. Abu-Zayyad, M.G. Allen, R. Anderson, R. Azuma, E. Barcikowski, J.W. Belz, D.R. Bergman, S.A. Blake, R. Cady, M.J. Chae, B.G. Cheon, J. Chiba, M. Chikawa, W.R. Cho, T. Fujii, M. Fukushima, T. Goto, W. Hanlon, Y. Hayashi, N. Hayashida, K. Hibino, K. Honda, D. Ikeda, N. Inoue, T. Ishii, R. Ishimori, H. Ito, D. Ivanov, C.C.H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, H. Kawai, S. Kawakami, S. Kawana, K. Kawata, E. Kido, H.B. Kim, J.H. Kim, S. Kitamura, Y. Kitamura, V. Kuzmin, Y.J. Kwon, J. Lan, S.I. Lim, J.P. Lundquist, K. Machida, K. Martens, T. Matsuda, T. Matsuyama, J.N. Matthews, M. Minamino, K. Mukai, I. Myers, K. Nagasawa, S. Nagataki, T. Nakamura, T. Nonaka, A. Nozato, S. Ogio, J. Ogura, M. Ohnishi, H. Ohoka, K. Oki, T. Okuda, M. Ono, A. Oshima, S. Ozawa, I.H. Park, M.S. Pshirkov, D.C. Rodriguez, G. Rubtsov, D. Ryu, H. Sagawa, N. Sakurai, A.L. Sampson, L.M. Scott, P.D. Shah, F. Shibata, T. Shibata, H. Shimodaira, B.K. Shin, H.S. Shin, J.D. Smith, P. Sokolsky, R.W. Springer, B.T. Stokes, S.R. Stratton, T.A. Stroman, T. Suzawa, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, S.B. Thomas, G.B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, Y. Tsunesada, K. Tsutsumi, Y. Uchihori, S. Udo, F. Urban, G. Vasiloff, T. Wong, R. Yamane, H. Yamaoka, K. Yamazaki, J. Yang, K. Yashiro, Y. Yoneda, S. Yoshida, H. Yoshii, R. Zollinger, and Z. Zundel

Subjects
Physics, Physics::Instrumentation and Detectors, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Cosmic ray, Drum, Scintillator, law.invention, Telescope, Optics, Air shower, law, Ultra-high-energy cosmic ray, business, Energy (signal processing)
Abstract

The Telescope Array experiment studies ultra high energy cosmic rays using a hybrid detector. Fluorescence telescopes measure the longitudinal development of the extensive air shower generated when a primary cosmic ray particle interacts with the atmosphere. Meanwhile, scintillator detectors measure the lateral distribution of secondary shower particles that hit the ground. The Middle Drum (MD) fluorescence telescope station consists of 14 telescopes from the High Resolution Fly’s Eye (HiRes) experiment, providing a direct link back to the HiRes measurements. Using the scintillator detector data in conjunction with the telescope data improves the geometrical reconstruction of the showers significantly, and hence, provides a more accurate reconstruction of the energy of the primary particle. The Middle Drum hybrid spectrum is presented and compared to that measured by the Middle Drum station in monocular mode. Further, the hybrid data establishes a link between the Middle Drum data and the surface array. A comparison between the Middle Drum hybrid energy spectrum and scintillator Surface Detector (SD) spectrum is also shown.

Published
2015

18. Gain monitoring of telescope array photomultiplier cameras for the first 4 years of operation

Author

Y. Uchihori, X. Zhou, B. G. Cheon, Takaaki Ishii, T. Kanbe, Robert M. Anderson, J. Martineau, D. C. Rodriguez, Grigory Rubtsov, Isaac Myers, Y. Kobayashi, A. L. Sampson, S. Kawakami, H. Yoshii, K. Tsutsumi, H. Tokuno, Yuichiro Tameda, John N. Matthews, L. M. Scott, Y. Hayashi, Hiroyuki Sagawa, J. D. Smith, Takayuki Tomida, K. Kitamoto, R. Azuma, T. Matsuura, Mayuko Minamino, K. Honda, Yasunori Kitamura, S. Yoshida, Vladim Kuzmin, R. Zollinger, R. Aida, Masaaki Tanaka, Hideaki Shimodaira, K. Hibino, Yoshiki Tsunesada, K. Yamazaki, Daisuke Ikeda, Fumiya Shibata, Tareq Abu-Zayyad, R. Yamane, R. Ishimori, S. R. Stratton, Ben Stokes, Tiffany Wong, T.-A. Shibata, Gordon Thomson, Tom Stroman, Robert Cady, T. Fukuda, Takeshi Okuda, Igor Tkachev, Masaki Fukushima, T. Shirahama, S. Y. Roh, Hyun-Il Kim, S. Kitamura, M. Allen, T. Matsuyama, Samuel Blake, E. J. Cho, Y. Kondo, Shoichi Ogio, K. Oki, Michiyuki Chikawa, Inkyu Park, K. Nagasawa, Shingo Kawana, T. Fujii, Eiji Kido, William Hanlon, Sergey Troitsky, S. Machida, R. W. Springer, J. I. Shin, Naoaki Hayashida, Y. Tsuyuguchi, Maxim Pshirkov, Kiyoshi Tanaka, Elliott Barcikowski, Dmitri Ivanov, H. Fujii, K. Hayashi, H. Kawai, K. Kasahara, Fumio Kakimoto, Tomohiro Matsuda, K. Ikuta, Nobuyuki Sakurai, Akitoshi Oshima, K. Kobayashi, Shunsuke Ozawa, John Belz, Y. Murano, Pierre Sokolsky, M. Takeda, Shigehiro Nagataki, K. Kuramoto, Yasuhiro H. Takahashi, Masato Takita, Zach Zundel, O. Kalashev, T. Iguchi, M. Wood, P. Tinyakov, Y. Yamakawa, K. Martens, Hideki Tanaka, Y. J. Kwon, Toshiyuki Nonaka, Hiroshi Yamaoka, Hideyuki Ohoka, J. Yang, H. Ukai, Priti Shah, K. Miyata, Hongsu Kim, Bokkyun Shin, Akimichi Taketa, S. Suzuki, Douglas Bergman, D. Oku, K. Hiyama, Y. Yoneda, N. Inoue, S. I. Lim, M. Ohnishi, S. Udo, C. C. H. Jui, S. B. Thomas, S. W. Nam, W. R. Cho, Toru Nakamura, Kenichi Kadota, Y. Wada, T. J. Sonley, S. Iwamoto, G. Vasiloff, Jyunsei Chiba, Dongsu Ryu, and J. H. Kim

Subjects
Physics, Telescope, Nuclear and High Energy Physics, Photomultiplier, Optics, business.industry, law, Night sky, Optoelectronics, Scintillator, business, Instrumentation, law.invention
Abstract

The stability of the gain of the photomultiplier (PMT) camera for the Fluorescence Detector (FD) of the Telescope Array experiment was monitored using an 241 Am loaded scintillator pulsers (YAP) and a diffused xenon flasher (TXF) for a selected set of 35 PMT-readout channels. From the monitoring of YAP pulses over four years of FD operation, we found slow monotonic drifts of PMT gains at a rate of −1.7~+1.7%/year. An average of the PMT gains over the 35 channels stayed nearly constant with a rate of change measured at −0.01±0.31(stat)±0.21(sys)%/year. No systematic decrease of the PMT gain caused by the night sky background was observed. Monitoring by the TXF also tracked the PMT gain drift of the YAP at 0.88±0.14(stat)%/year.

Published
2014

19. The energy spectrum of ultra-high-energy cosmic rays measured by the Telescope Array FADC fluorescence detectors in monocular mode

Author

T. Kanbe, Y. Kobayashi, Fumiya Shibata, S. Kitamura, Robert M. Anderson, R. Ishimori, Hidemi Ito, Sergey Troitsky, Grigory Rubtsov, Isaac Myers, T. Matsuyama, Y. Yamakawa, S. Yoshida, H. Ukai, Priti Shah, Yuichiro Tameda, S. Suzuki, Taka Tomida, T. Shirahama, John N. Matthews, Douglas Bergman, Pierre Sokolsky, R. Zollinger, D. Oku, K. Hiyama, Y. J. Kwon, Hiroyuki Sagawa, K. Ikuta, Hideyuki Ohoka, Hideaki Shimodaira, M. Takeda, J. H. Kim, M. Allen, T. J. Sonley, Shigehiro Nagataki, K. Oki, Charlie Jui, J. Ogura, Y. Kondo, Akimichi Taketa, Naoaki Hayashida, Y. Tsuyuguchi, K. Kasahara, K. Kitamoto, J. P. Lundquist, Takaaki Ishii, Toshiyuki Nonaka, Mayuko Minamino, K. Honda, S. Y. Roh, B. G. Cheon, Takeshi Okuda, Igor Tkachev, T. Iguchi, A. L. Sampson, D. C. Rodriguez, S. Iwamoto, John Belz, Inkyu Park, K. Miyata, Masaomi Ono, J. I. Shin, Yasunori Kitamura, K. Yamazaki, Bokkyun Shin, S. Kawakami, Y. Murano, Tareq Abu-Zayyad, Vladim Kuzmin, R. Yamane, T. Fujii, K. Tsutsumi, Hiroshi Yamaoka, R. Aida, Masaaki Tanaka, G. Vasiloff, R. Azuma, T. Matsuura, Elliott Barcikowski, T.-A. Shibata, L. M. Scott, K. Hibino, Jyunsei Chiba, Dongsu Ryu, Gordon Thomson, Tom Stroman, Robert Cady, Y. Hayashi, Hongsu Kim, Dmitri Ivanov, H. Fujii, Y. Uchihori, O. Kalashev, W. R. Cho, H. Kawai, Hyun-Il Kim, Kiyoshi Tanaka, H. Yoshii, Eiji Kido, Yoshiki Tsunesada, K. Kuramoto, Y. Yoneda, N. Inoue, S. I. Lim, Daisuke Ikeda, Toru Nakamura, Kenichi Kadota, S. R. Stratton, M. Ohnishi, S. Machida, S. Udo, J. Yang, Y. Wada, Tiffany Wong, J. Lan, S. B. Thomas, Nobuyuki Sakurai, S. W. Nam, T. Fukuda, Masaki Fukushima, Peter Tinyakov, Samuel Blake, Shoichi Ogio, E. J. Cho, Michiyuki Chikawa, Yasuhiro H. Takahashi, Zach Zundel, Masato Takita, K. Martens, Hideki Tanaka, H. Tokuno, J. D. Smith, R. W. Springer, Tomohiro Matsuda, K. Kobayashi, Shingo Kawana, William Hanlon, Maxim Pshirkov, K. Hayashi, Fumio Kakimoto, Akitoshi Oshima, Shunsuke Ozawa, and Ben Stokes

Subjects
Astroparticle physics, Physics, business.industry, Aperture, Monte Carlo method, Detector, Astronomy and Astrophysics, Cosmic ray, law.invention, Telescope, Optics, law, Ultra-high-energy cosmic ray, business, Event reconstruction
Abstract

We present a measurement of the energy spectrum of ultra-high-energy cosmic rays performed by the Telescope Array experiment using monocular observations from its two new FADC-based fluorescence detectors. After a short description of the experiment, we describe the data analysis and event reconstruction procedures. Since the aperture of the experiment must be calculated by Monte Carlo simulation, we describe this calculation and the comparisons of simulated and real data used to verify the validity of the aperture calculation. Finally, we present the energy spectrum calculated from the merged monocular data sets of the two FADC-based detectors, and also the combination of this merged spectrum with an independent, previously published monocular spectrum measurement performed by Telescope Array’s third fluorescence detector [T. Abu-Zayyad et al., The energy spectrum of Telescope Array’s middle drum detector and the direct comparison to the high resolution fly’s eye experiment, Astroparticle Physics 39 (2012) 109-119, http://dx.doi.org/10.1016/j.astropartphys.2012.05.012 , Available from: ]. This combined spectrum corroborates the recently published Telescope Array surface detector spectrum [T. Abu-Zayyad, et al., The cosmic-ray energy spectrum observed with the surface detector of the Telescope Array experiment, ApJ 768 (2013) L1, http://dx.doi.org/10.1088/2041-8205/768/1/L1 , Available from: ] with independent systematic uncertainties.

Published
2013

20. Search for anisotropy of ultrahigh energy cosmic rays with the telescope array experiment

Author

T. Abu-Zayyad, R. Aida, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, R. Cady, B. G. Cheon, J. Chiba, M. Chikawa, E. J. Cho, W. R. Cho, H. Fujii, T. Fujii, T. Fukuda, M. Fukushima, W. Hanlon, K. Hayashi, Y. Hayashi, N. Hayashida, K. Hibino, K. Hiyama, K. Honda, T. Iguchi, D. Ikeda, K. Ikuta, N. Inoue, T. Ishii, R. Ishimori, D. Ivanov, S. Iwamoto, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, T. Kanbe, K. Kasahara, H. Kawai, S. Kawakami, S. Kawana, E. Kido, H. B. Kim, H. K. Kim, J. H. Kim, K. Kitamoto, S. Kitamura, Y. Kitamura, K. Kobayashi, Y. Kobayashi, Y. Kondo, K. Kuramoto, V. Kuzmin, Y. J. Kwon, S. I. Lim, S. Machida, K. Martens, J. Martineau, T. Matsuda, T. Matsuura, T. Matsuyama, J. N. Matthews, M. Minamino, K. Miyata, Y. Murano, I. Myers, K. Nagasawa, S. Nagataki, T. Nakamura, S. W. Nam, T. Nonaka, S. Ogio, M. Ohnishi, H. Ohoka, K. Oki, D. Oku, T. Okuda, A. Oshima, S. Ozawa, I. H. Park, M. S. Pshirkov, D. C. Rodriguez, S. Y. Roh, G. Rubtsov, D. Ryu, H. Sagawa, N. Sakurai, A. L. Sampson, L. M. Scott, P. D. Shah, F. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, J. I. Shin, T. Shirahama, J. D. Smith, P. Sokolsky, T. J. Sonley, R. W. Springer, B. T. Stokes, S. R. Stratton, T. Stroman, S. Suzuki, Y. Takahashi, M. Takeda, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, Y. Tsunesada, K. Tsutsumi, Y. Tsuyuguchi, Y. Uchihori, S. Udo, H. Ukai, G. Vasiloff, Y. Wada, T. Wong, M. Wood, Y. Yamakawa, R. Yamane, H. Yamaoka, K. Yamazaki, J. Yang, Y. Yoneda, S. Yoshida, H. Yoshii, X. Zhou, R. Zollinger, and Z. Zundel

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, Isotropy, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, 01 natural sciences, law.invention, Telescope, 13. Climate action, Space and Planetary Science, law, 0103 physical sciences, Ultra-high-energy cosmic ray, Astrophysics - High Energy Astrophysical Phenomena, 010306 general physics, Right ascension, Anisotropy, 010303 astronomy & astrophysics, Event (particle physics)
Abstract

We study the anisotropy of Ultra-High Energy Cosmic Ray (UHECR) events collected by the Telescope Array (TA) detector in the first 40 months of operation. Following earlier studies, we examine event sets with energy thresholds of 10 EeV, 40 EeV, and 57 EeV. We find that the distributions of the events in right ascension and declination are compatible with an isotropic distribution in all three sets. We then compare with previously reported clustering of the UHECR events at small angular scales. No significant clustering is found in the TA data. We then check the events with E>57 EeV for correlations with nearby active galactic nuclei. No significant correlation is found. Finally, we examine all three sets for correlations with the large-scale structure of the Universe. We find that the two higher-energy sets are compatible with both an isotropic distribution and the hypothesis that UHECR sources follow the matter distribution of the Universe (the LSS hypothesis), while the event set with E>10 EeV is compatible with isotropy and is not compatible with the LSS hypothesis at 95% CL unless large deflection angles are also assumed. We show that accounting for UHECR deflections in a realistic model of the Galactic magnetic field can make this set compatible with the LSS hypothesis., 10 pages, 9 figures

Published
2012

21. The Energy Spectrum of Cosmic Rays above 10$^{17.2}$ eV Measured by the Fluorescence Detectors of the Telescope Array Experiment in Seven Years

Author

K. Hibino, T. Goto, Grigory Rubtsov, H. Yoshii, Akitoshi Oshima, Ben Stokes, Kazumasa Kawata, R. Azuma, H. Kawai, K. Nagasawa, Kenta Yashiro, M. Abe, T.-A. Shibata, Gordon Thomson, Tom Stroman, Robert Cady, K. Martens, Federico R. Urban, Mayuko Minamino, T. Suzawa, John Belz, K. Honda, S. Kitamura, Hang Bae Kim, Priti Shah, Hideki Tanaka, Yasunori Kitamura, Mai Takamura, Hidemi Ito, Isaac Myers, K. Tsutsumi, Byung Gu Cheon, Masaaki Tanaka, Nobuyuki Sakurai, Bokkyun Shin, Eiji Kido, Fumiya Shibata, Igor Tkachev, Pierre Sokolsky, J. H. Kim, Kazuhiro Machida, Y. Tsunesada, Zach Zundel, S. Kawakami, Douglas Bergman, Fumio Kakimoto, R. Ishimori, K. Kasahara, Kanako Yamazaki, K. Oki, Toshiyuki Nonaka, J. P. Lundquist, M. Takeda, Sergey Troitsky, Inkyu Park, R. W. Springer, Shigehiro Nagataki, G. Vasiloff, Heungsu Shin, Y. Mukai, Y. J. Kwon, Hideyuki Ohoka, Hiroyuki Sagawa, Jyunsei Chiba, Y. Yoneda, Akimichi Taketa, Kiyoshi Tanaka, Dongsu Ryu, Hiroshi Yamaoka, N. Inoue, M. Ohnishi, Masaomi Ono, Ryuji Takeishi, S. Udo, C. C. H. Jui, Tomohiro Matsuda, S. B. Thomas, Toshihiro Fujii, Naoaki Hayashida, M. Allen, Shingo Kawana, O. Kalashev, W. R. Cho, Y. Uchihori, William Hanlon, Toru Nakamura, T. Okuda, J. Ogura, Kenichi Kadota, Takayuki Tomida, Elliott Barcikowski, Dmitri Ivanov, H. Tokuno, Takaaki Ishii, J. D. Smith, D. C. Rodriguez, J. Yang, Yuichiro Tameda, John N. Matthews, J. Lan, Masato Takita, Peter Tinyakov, Samuel Blake, Shoichi Ogio, L. M. Scott, A. Nozato, Y. Hayashi, Hideaki Shimodaira, Vladim Kuzmin, T. Matsuyama, S. Ozawa, Tareq Abu-Zayyad, R. Yamane, Maxim Pshirkov, Michiyuki Chikawa, S. Yoshida, Daisuke Ikeda, S. R. Stratton, Rasha Abbasi, Tiffany Wong, Masaki Fukushima, and R. Zollinger

Subjects
Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Range (particle radiation), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Detector, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, 7. Clean energy, 01 natural sciences, Fluorescence, law.invention, Telescope, Orders of magnitude (time), law, 0103 physical sciences, Energy spectrum, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics, Energy (signal processing)
Abstract

The Telescope Array (TA) experiment is the largest detector to observe ultra-high-energy cosmic rays in the northern hemisphere. The fluorescence detectors at southern two stations of TA are newly constructed and have now completed seven years of steady operation. One advantage of monocular analysis of the fluorescence detectors is a lower energy threshold for cosmic rays than that of other techniques like stereoscopic observations or coincidences with the surface detector array, allowing the measurement of an energy spectrum covering three orders of magnitude in energy. Analyzing data collected during those seven years, we report the energy spectrum of cosmic rays covering a broad range of energies above 10$^{17.2}$ eV measured by the fluorescence detectors and a comparison with previously published results., Submitted to Astroparticle Physics

Published
2015

22. Publisher’s Note: Measurement of the proton-air cross section with Telescope Array’s Middle Drum detector and surface array in hybrid mode [Phys. Rev. D92, 032007 (2015)]

Author

Hideki Tanaka, K. Nagasawa, R. Zollinger, Hisono Tokuno, L. M. Scott, Pierre Sokolsky, A. Nozato, Y. Hayashi, M. Takeda, Shigehiro Nagataki, K. Kawata, K. Hibino, Hidemi Ito, P. Tinyakov, Mai Takamura, Dmitri Ivanov, Rasha Abbasi, M. Takita, Inkyu Park, Daisuke Ikeda, S. R. Stratton, O. Kalashev, B. G. Cheon, Akitoshi Oshima, Y. Tsunesada, Kalen Martens, R. W. Springer, Hideaki Shimodaira, Tiffany Wong, T. Goto, Charlie Jui, Ryuji Takeishi, Maxim Pshirkov, Sergey Troitsky, Mayuko Minamino, Yuichiro Tameda, K. Oki, K. Honda, Masaki Fukushima, Shunsuke Ozawa, Grigory Rubtsov, K. Yamazaki, T.-A. Shibata, Yasunori Kitamura, J. D. Smith, Takeshi Okuda, Vladim Kuzmin, Gordon Thomson, Igor Tkachev, Tom Stroman, H. Yoshii, Masaaki Tanaka, Robert Cady, Fumiya Shibata, Tomohiro Matsuda, Taka Tomida, Akimichi Taketa, R. Ishimori, M. Allen, S. B. Thomas, S. Kawakami, T. Matsuyama, Bokkyun Shin, John Belz, G. Vasiloff, Tareq Abu-Zayyad, R. Yamane, J. Ogura, Eiji Kido, Kazuhiro Machida, Elliott Barcikowski, M. J. Chae, Hiroyuki Sagawa, Shingo Kawana, K. Kadota, Jyunsei Chiba, Dongsu Ryu, D. R. Bergman, Naoaki Hayashida, Heungsu Shin, Y. Uchihori, William Hanlon, S. Yoshida, Y. J. Kwon, Toshitsugu Fujii, J. Yang, K. Kasahara, Nobuyuki Sakurai, Hideyuki Ohoka, John N. Matthews, Samuel Blake, Shoichi Ogio, Kiyoshi Tanaka, Fumio Kakimoto, Zach Zundel, M. Abe, Y. Yoneda, N. Inoue, S. I. Lim, Masaomi Ono, W. R. Cho, J. H. Kim, M. Ohnishi, Takaaki Ishii, Ben Stokes, Hongsu Kim, Federico R. Urban, D. C. Rodriguez, T. Suzawa, Toru Nakamura, H. Kawai, Isaac Myers, S. Kitamura, Kenta Yashiro, K. Tsutsumi, Priti Shah, Toshiyuki Nonaka, Michiyuki Chikawa, Y. Mukai, Hiroshi Yamaoka, Shigeharu Udo, R. Azuma, J. P. Lundquist, and J. Lan

Subjects
Physics, Surface (mathematics), Nuclear and High Energy Physics, Proton, business.industry, Detector, Drum, Astrophysics, Cosmology, law.invention, Gravitation, Telescope, Cross section (physics), Optics, law, business
Published
2015

23. Upper limit on the flux of photons with energies above1019 eVusing the Telescope Array surface detector

Author

S. Kitamura, K. Kasahara, B. G. Cheon, John Belz, T. Shirahama, Y. Murano, T. Iguchi, X. Zhou, H. Kawai, Maxim Pshirkov, W. R. Cho, Fumiya Shibata, M. Tanaka, K. Nagasawa, Y. Yoneda, N. Inoue, S. I. Lim, M. Ohnishi, R. Ishimori, Y. Kondo, K. Martens, Hideki Tanaka, R. Azuma, T. Matsuura, A. L. Sampson, S. Udo, K. Oki, Yasuhiro H. Takahashi, H. Ukai, Priti Shah, Ben Stokes, K. Kuramoto, Grigory Rubtsov, Zach Zundel, M. Wood, Peter Tinyakov, Samuel Blake, L. M. Scott, H. Yoshii, S. B. Thomas, S. W. Nam, Shoichi Ogio, Toru Nakamura, Y. Uchihori, E. J. Cho, Y. Hayashi, S. Y. Roh, Nobuyuki Sakurai, Naoaki Hayashida, R. Zollinger, Kenichi Kadota, T. Kanbe, Michiyuki Chikawa, S. Iwamoto, S. Kawakami, Robert M. Anderson, J. H. Kim, S. Machida, Isaac Myers, S. Suzuki, Tomohiro Matsuda, Charlie Jui, J. Yang, K. Kitamoto, Inkyu Park, Yoshiki Tsunesada, Daisuke Ikeda, J. Lan, Hideaki Shimodaira, K. Kobayashi, Mayuko Minamino, K. Hayashi, S. R. Stratton, Douglas Bergman, Hiroyuki Sagawa, K. Honda, Toshiyuki Nonaka, Tiffany Wong, T. Fukuda, Masaki Fukushima, Yasunori Kitamura, T. Fujii, Vladim Kuzmin, R. Aida, Hiroshi Yamaoka, S. Yoshida, Fumio Kakimoto, Y. Wada, K. Hibino, D. Oku, Sergey Troitsky, K. Tsutsumi, J. I. Shin, K. Hiyama, K. Yamazaki, Takaaki Ishii, Taka Tomida, Tareq Abu-Zayyad, R. Yamane, T.-A. Shibata, Y. Yamakawa, Gordon Thomson, Elliott Barcikowski, Tom Stroman, Robert Cady, D. C. Rodriguez, Dmitri Ivanov, H. Fujii, G. Vasiloff, Akitoshi Oshima, Jyunsei Chiba, Dongsu Ryu, Masato Takita, Y. Tsuyuguchi, Igor Tkachev, Shunsuke Ozawa, Kiyoshi Tanaka, Hyun-Il Kim, T. Matsuyama, Hongsu Kim, Akimichi Taketa, M. Allen, Eiji Kido, Y. Kobayashi, Yuichiro Tameda, John N. Matthews, H. Tokuno, J. D. Smith, K. Miyata, Bokkyun Shin, Pierre Sokolsky, Y. J. Kwon, Hideyuki Ohoka, Shingo Kawana, K. Ikuta, M. Takeda, Shigehiro Nagataki, Dmitry Gorbunov, William Hanlon, T. Okuda, and O. Kalashev

Subjects
Physics, Surface (mathematics), Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, Detector, Flux, Cosmic ray, Astrophysics, 01 natural sciences, law.invention, Telescope, law, 0103 physical sciences, Limit (mathematics), Atomic physics, 010306 general physics, Energy (signal processing)
Abstract

We search for ultra-high energy photons by analyzing geometrical properties of shower fronts of events registered by the Telescope Array surface detector. By making use of an event-by-event statistical method, we derive upper limits on the absolute flux of primary photons with energies above ${10}^{19}$, ${10}^{19.5}$, and ${10}^{20}\text{ }\text{ }\mathrm{eV}$ based on the first three years of data taken.

Published
2013

24. Search for correlations of the arrival directions of ultra-high energy cosmic ray with extragalactic objects as observed by the telescope array experiment

Author

T. Abu-Zayyad, R. Aida, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, R. Cady, B. G. Cheon, J. Chiba, M. Chikawa, E. J. Cho, W. R. Cho, H. Fujii, T. Fujii, T. Fukuda, M. Fukushima, W. Hanlon, K. Hayashi, Y. Hayashi, N. Hayashida, K. Hibino, K. Hiyama, K. Honda, T. Iguchi, D. Ikeda, K. Ikuta, N. Inoue, T. Ishii, R. Ishimori, H. Ito, D. Ivanov, S. Iwamoto, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, T. Kanbe, K. Kasahara, H. Kawai, S. Kawakami, S. Kawana, K. Kawata, E. Kido, H. B. Kim, H. K. Kim, J. H. Kim, K. Kitamoto, S. Kitamura, Y. Kitamura, K. Kobayashi, Y. Kobayashi, Y. Kondo, K. Kuramoto, V. Kuzmin, Y. J. Kwon, J. Lan, S. I. Lim, J. P. Lundquist, S. Machida, K. Martens, T. Matsuda, T. Matsuura, T. Matsuyama, J. N. Matthews, M. Minamino, K. Miyata, Y. Murano, I. Myers, K. Nagasawa, S. Nagataki, T. Nakamura, S. W. Nam, T. Nonaka, S. Ogio, M. Ohnishi, H. Ohoka, K. Oki, D. Oku, T. Okuda, M. Ono, A. Oshima, S. Ozawa, I. H. Park, M. S. Pshirkov, D. C. Rodriguez, S. Y. Roh, G. Rubtsov, D. Ryu, H. Sagawa, N. Sakurai, A. L. Sampson, L. M. Scott, P. D. Shah, F. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, J. I. Shin, T. Shirahama, J. D. Smith, P. Sokolsky, R. W. Springer, B. T. Stokes, S. R. Stratton, T. Stroman, S. Suzuki, Y. Takahashi, M. Takeda, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, Y. Tsunesada, K. Tsutsumi, Y. Tsuyuguchi, Y. Uchihori, S. Udo, H. Ukai, F. Urban, G. Vasiloff, Y. Wada, T. Wong, Y. Yamakawa, R. Yamane, H. Yamaoka, K. Yamazaki, J. Yang, Y. Yoneda, S. Yoshida, H. Yoshii, X. Zhou, R. Zollinger, and Z. Zundel

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Active galactic nucleus, 010308 nuclear & particles physics, Angular distance, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Redshift, law.invention, Telescope, Space and Planetary Science, law, 0103 physical sciences, Ultra-high-energy cosmic ray, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics, Event (particle physics), Energy (signal processing)
Abstract

We search for correlations between positions of extragalactic objects and arrival directions of Ultra-High Energy Cosmic Rays (UHECRs) with primary energy $E \ge 40$ EeV as observed by the surface detector array of the Telescope Array (TA) experiment during the first 40 months of operation. We examined several public astronomical object catalogs, including the Veron-Cetty and Veron catalog of active galactic nuclei. We counted the number of TA events correlated with objects in each catalog as a function of three parameters: the maximum angular separation between a TA event and an object, the minimum energy of the events, and the maximum redshift of the objects. We determine combinations of these parameters which maximize the correlations, and calculate the chance probabilities of having the same levels of correlations from an isotropic distribution of UHECR arrival directions. No statistically significant correlations are found when penalties for scanning over the above parameters and for searching in several catalogs are taken into account.

Published
2013

25. The Energy Spectrum of Telescope Array's Middle Drum Detector and the Direct Comparison to the High Resolution Fly's Eye Experiment

Author

Fumiya Shibata, R. Ishimori, Y. J. Kwon, Hideyuki Ohoka, Y. Wada, O. Kalashev, R. W. Springer, Sergey Troitsky, Y. Uchihori, S. Suzuki, Jihee Kim, Tomohiro Matsuda, Hideaki Shimodaira, N. Sakurai, T.-A. Shibata, Douglas Bergman, Gordon Thomson, K. Miyata, Y. Yoneda, W. R. Cho, Tom Stroman, R. Zollinger, Robert Cady, Toru Nakamura, Kenichi Kadota, D. Oku, K. Hiyama, Pierre Sokolsky, N. Inoue, S. I. Lim, Kiyoshi Kuramoto, K. Kobayashi, Y. Kobayashi, K. Kitamoto, Bokkyun Shin, John Belz, Naoaki Hayashida, Y. Tsuyuguchi, M. Takeda, Shigehiro Nagataki, S. Kitamura, Y. Murano, Hiroyuki Sagawa, Ben Stokes, Mayuko Minamino, K. Honda, M. Ohnishi, T. Matsuyama, K. Yamazaki, Tareq Abu-Zayyad, R. Yamane, K. Martens, Takaaki Ishii, T. Shirahama, H. Kawai, S. Y. Roh, Yasunori Kitamura, Masaaki Tanaka, C. C. H. Jui, Hideki Tanaka, D. C. Rodriguez, K. Oki, Yuichiro Tameda, John N. Matthews, Inkyu Park, HangBae Kim, T. Kanbe, T. Fujii, K. Tsutsumi, Dmitry Gorbunov, L. M. Scott, K. Hibino, S. B. Thomas, Robert M. Anderson, S. Yoshida, Y. Hayashi, Isaac Myers, Maxim Pshirkov, Shingo Kawana, Akimichi Taketa, William Hanlon, Akitoshi Oshima, B. G. Cheon, J. Martineau, S. Machida, Shunsuke Ozawa, Y. Kondo, Vladim Kuzmin, Eiji Kido, S. Udo, K. Ikuta, R. Aida, A. L. Sampson, Kiyoshi Tanaka, H. Yoshii, Grigory Rubtsov, K. Hayashi, Yoshiki Tsunesada, S. Kawakami, H. Tokuno, Fumio Kakimoto, J. D. Smith, Daisuke Ikeda, M. Allen, Elliott Barcikowski, Dmitri Ivanov, S. R. Stratton, H. Fujii, Tiffany Wong, Yukio Takahashi, T. Fukuda, Masaki Fukushima, J. I. Shin, E. J. Cho, Michiyuki Chikawa, J. Yang, Zach Zundel, Toshiyuki Nonaka, Hiroshi Yamaoka, G. Vasiloff, Jyunsei Chiba, Dongsu Ryu, T. J. Sonley, S. W. Nam, H. Ukai, Priti Shah, S. Iwamoto, H. K. Kim, Masato Takita, R. Azuma, T. Matsuura, Samuel Blake, Shoichi Ogio, K. Kasahara, Takeshi Okuda, Igor Tkachev, Takayuki Tomida, T. Iguchi, M. Wood, P. Tinyakov, and Y. Yamakawa

Subjects
Physics, Monocular, business.industry, Detector, FOS: Physical sciences, Astronomy and Astrophysics, Drum, Scintillator, law.invention, Telescope, Optics, law, Scintillation counter, Calibration, business, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Energy (signal processing)
Abstract

The Telescope Array's Middle Drum fluorescence detector was instrumented with telescopes refurbished from the High Resolution Fly's Eye's HiRes-1 site. The data observed by Middle Drum in monocular mode was analyzed via the HiRes-1 profile-constrained geometry reconstruction technique and utilized the same calibration techniques enabling a direct comparison of the energy spectra and energy scales between the two experiments. The spectrum measured using the Middle Drum telescopes is based on a three-year exposure collected between December 16, 2007 and December 16, 2010. The calculated difference between the spectrum of the Middle Drum observations and the published spectrum obtained by the data collected by the HiRes-1 site allows the HiRes-1 energy scale to be transferred to Middle Drum. The HiRes energy scale is applied to the entire Telescope Array by making a comparison between Middle Drum monocular events and hybrid events that triggered both Middle Drum and the Telescope Array's scintillator Ground Array., Comment: 27 pages, 21 figures

Published
2012
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26. The Telescope Array experiment: Status and Prospects

Author

H. Tokuno, T. Abu-Zayyad, R. Aida, M. Allen, R. Azuma, E. Barcikowski, J. W. Belz, T. Benno, D. R. Bergman, S. A. Blake, O. Brusova, R. Cady, B. G. Cheon, J. Chiba, M. Chikawa, E. J. Cho, L. S. Cho, W. R. Cho, F. Cohen, K. Doura, C. Ebeling, H. Fujii, T. Fujii, T. Fukuda, M. Fukushima, D. Gorbunov, W. Hanlon, K. Hayashi, Y. Hayashi, N. Hayashida, K. Hibino, K. Hiyama, K. Honda, G. Hughes, T. Iguchi, D. Ikeda, K. Ikuta, S. J. J. Innemee, N. Inoue, T. Ishii, R. Ishimori, D. Ivanov, S. Iwamoto, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, T. Kanbe, H. Kang, K. Kasahara, H. Kawai, S. Kawakami, S. Kawana, E. Kido, B. G. Kim, H. B. Kim, J. H. Kim, A. Kitsugi, K. Kobayashi, H. Koers, Y. Kondo, V. Kuzmin, Y. J. Kwon, J. H. Lim, S. I. Lim, S. Machida, K. Martens, J. Martineau, T. Matsuda, T. Matsuyama, J. N. Matthews, M. Minamino, K. Miyata, H. Miyauchi, Y. Murano, T. Nakamura, S. W. Nam, T. Nonaka, S. Ogio, M. Ohnishi, H. Ohoka, T. Okuda, A. Oshima, S. Ozawa, I. H. Park, D. Rodriguez, S. Y. Roh, G. Rubtsov, D. Ryu, H. Sagawa, N. Sakurai, L. M. Scott, P. D. Shah, T. Shibata, H. Shimodaira, B. K. Shin, J. D. Smith, P. Sokolsky, T. J. Sonley, R. W. Springer, B. T. Stokes, S. R. Stratton, S. Suzuki, Y. Takahashi, M. Takeda, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, J. R. Thomas, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, T. Tomida, R. Torii, S. Troitsky, Y. Tsunesada, Y. Tsuyuguchi, Y. Uchihori, S. Udo, H. Ukai, B. VanKlaveren, Y. Wada, M. Wood, T. Yamakawa, Y. Yamakawa, H. Yamaoka, J. Yang, S. Yoshida, H. Yoshii, Z. Zundel, Hajime Susa, Marcel Arnould, Sydney Gales, Tohru Motobayashi, Christoph Scheidenberger, and Hiroaki Utsunomiya

Subjects
Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, 01 natural sciences, law.invention, Telescope, Air shower, law, 0103 physical sciences, Reflection (physics), High Energy Physics::Experiment, Ultra-high-energy cosmic ray, 010306 general physics
Abstract

The Telescope Array is a detector of extensive air shower produced by ultra High energy cosmic ray. This detector is located on Utah, USA. The construction have been completed and the full operation has been running from March 2008. In this talk, the status of observation and our prospects are described.

Published
2010

27. Large-scale extragalactic jets powered by very-high-energy gamma rays

Author

O. Kalashev, D. Semikoz, A. Neronov, and Felix Aharonian

Subjects
Physics, Jet (fluid), Radiative cooling, Radio galaxy, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Cosmic background radiation, Gamma ray, FOS: Physical sciences, General Physics and Astronomy, Quasar, Astrophysics, Electron, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astrophysical jet, High Energy Physics::Experiment
Abstract

The radiative cooling of electrons responsible for the nonthermal synchrotron emission of large scale jets of radiogalaxies and quasars requires quasi continuous (in time and space) production of relativistic electrons throughout the jets over the scales exceeding 100 kpc. While in the standard paradigm of large scale jets this implies in situ acceleration of electrons, in this letter we propose a principally different ``non-acceleration'' origin of these electrons, assuming that they are implemented all over the length of the jet through effective development of electromagnetic cascades initiated by extremely high energy gamma-rays injected into the jet from the central object. This scenario provides a natural and very economic way to power the jets up to distances of 100 kpc and beyond., version accepted for publication in Phys.Rev.Lett

Published
2002

28. Restrictions on cosmogenic neutrinos and UHECR from Fermi 3 years data

Author

Dmitri V Semikoz, Graciela B. Gelmini, and O. Kalashev

Subjects
Physics, History, COSMIC cancer database, Active galactic nucleus, Proton, Star formation, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Astrophysics, Computer Science Applications, Education, Neutrino, Gamma-ray burst, Fermi Gamma-ray Space Telescope
Abstract

Ultra-high energy cosmic ray protons accelerated in astrophysical objects produce secondary electromagnetic cascades during propagation in the cosmic microwave and infrared backgrounds. Those cascades contribute to the GeV-TeV diffuse photon flux, measured by Fermi LAT experiment. Recent studies of 3 years of Fermi LAT data have shown that diffuse gamma-ray background at E > 10GeV is about factor of 2 smaller then original one year data. This affects both models of UHECR and secondary cosmogenic neutrino fluxes. We show the allowed range of cosmogenic neutrino fluxes scanning over unknown UHECR parameters such as injected proton maximum energy and power law index, evolution of sources, systematic shift of UHECR energy scale. We consider three evolution models in which the UHECR sources are assumed to have the same evolution of either the star formation rate (SFR), or the gamma-ray burst (GRB) rate, or the active galactic nuclei (AGN) rate in the Universe and found that the last two are disfavored (and in the dip model rejected) by the new VHE gamma-ray background. We show that the largest fluxes predicted in the dip model would be detectable by IceCube in about 10 years of observation and are within the reach of a few years of observation with the ARA project. In the incomplete UHECR model in which protons are assumed to dominate only above 1019 eV, the cosmogenic neutrino fluxes could be a factor of 2 or 3 larger.

Published
2012

29. The Status of the Telescope Array experiment

Author

H Tokuno, T Abu-Zayyad, R Aida, M Allen, R Azuma, E Barcikowski, J W Belz, T Benno, D R Bergman, S A Blake, O Brusova, R Cady, B G Cheon, J Chiba, M Chikawa, E J Cho, L S Cho, W R Cho, F Cohen, K Doura, C Ebeling, H Fujii, T Fujii, T Fukuda, M Fukushima, D Gorbunov, W Hanlon, K Hayashi, Y Hayashi, N Hayashida, K Hibino, K Hiyama, K Honda, G Hughes, T Iguchi, D Ikeda, K Ikuta, S J J Innemee, N Inoue, T Ishii, R Ishimori, D Ivanov, S Iwamoto, C C H Jui, K Kadota, F Kakimoto, O Kalashev, T Kanbe, H Kang, K Kasahara, H Kawai, S Kawakami, S Kawana, E Kido, B G Kim, H B Kim, J H Kim, A Kitsugi, K Kobayashi, H Koers, Y Kondo, V Kuzmin, Y J Kwon, J H Lim, S I Lim, S Machida, K Martens, J Martineau, T Matsuda, T Matsuyama, J N Matthews, M Minamino, K Miyata, H Miyauchi, Y Murano, T Nakamura, S W Nam, T Nonaka, S Ogio, M Ohnishi, H Ohoka, T Okuda, A Oshima, S Ozawa, I H Park, D Rodriguez, S Y Roh, G Rubtsov, D Ryu, H Sagawa, N Sakurai, L M Scott, P D Shah, T Shibata, H Shimodaira, B K Shin, J D Smith, P Sokolsky, T J Sonley, R W Springer, B T Stokes, S R Stratton, S Suzuki, Y Takahashi, M Takeda, A Taketa, M Takita, Y Tameda, H Tanaka, K Tanaka, M Tanaka, J R Thomas, S B Thomas, G B Thomson, P Tinyakov, I Tkachev, T Tomida, R Torii, S Troitsky, Y Tsunesada, Y Tsuyuguchi, Y Uchihori, S Udo, H Ukai, B VanKlaveren, Y Wada, M Wood, T Yamakawa, Y Yamakawa, H Yamaoka, J Yang, S Yoshida, H Yoshii, and Z Zundel

Subjects
Physics, History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Computer Science Applications, Education, law.invention, Telescope, law, Energy spectrum, High Energy Physics::Experiment, Ultra-high-energy cosmic ray, Detector array, Anisotropy
Abstract

The purpose of The Telescope Array experiment is to identify origin of the ultra high energy cosmic rays. The Telescope Array is a hybrid detector consists of a surface detector array and air fluorescence detectors. This hybrid detector is observing extensive air showers to measure the energy spectrum, anisotropy and composition of Ultra High Energy Cosmic Rays. The detector construction has been completed in March 2008, and the hybrid observation with the full configuration has been running since that time. In this talk, the status of observation and our prospects are described.

Published
2011

30. Searches for Large-Scale Anisotropy in the Arrival Directions of Cosmic Rays Detected above Energy of $10^{19}$ eV at the Pierre Auger Observatory and the Telescope Array

Author

Telescope, Array, Pierre Auger Collaborations (Alexander Aab, Pedro, Abreu, Marco, Aglietta, Eun Joo Ahn, Imen Al Samarai, Ivone, Albuquerque, Ingomar, Allekotte, Jeff, Allen, Patrick, Allison, Alejandro, Almela, Jesus Alvarez Castillo, Jaime Alvarez Muñiz, Rafael Alves Batista, Michelangelo, Ambrosio, Amin, Aminaei, Luis, Anchordoqui, Sofia, Andringa, Carla, Aramo, Victor Manuel Aranda, Fernando, Arqueros, Hernán Gonzalo Asorey, Pedro, Assis, Julien, Aublin, Maximo, Ave, Michel, Avenier, Gualberto, Avila, Nafiun, Awal, Alina Mihaela Badescu, Barber, Kerri B., Julia, Bäuml, Colin, Baus, Jim, Beatty, Karl Heinz Becker, Bellido, Jose A., Corinne, Berat, Mario Edoardo Bertania, Xavier, Bertou, Peter, Biermann, Pierre, Billoir, Blaess, Simon G., Miguel, Blanco, Carla, Bleve, Hans, Blümer, Martina, Boháčová, Denise, Boncioli, Carla, Bonifazi, Raffaella, Bonino, Nataliia, Borodai, Jeffrey, Brack, Iliana, Brancus, Ariel, Bridgeman, Pedro, Brogueira, Brown, William C., Peter, Buchholz, Antonio, Bueno, Stijn, Buitink, Buscemi, Mario, Caballero Mora, Karen S., Barbara, Caccianiga, Lorenzo, Caccianiga, Marina, Candusso, Laurentiu, Caramete, Caruso, Rossella, Antonella, Castellina, Gabriella, Cataldi, Lorenzo, Cazon, Rosanna, Cester, Chavez, Alan G., Andrea, Chiavassa, Jose Augusto Chinellato, Jiri, Chudoba, Marco, Cilmo, Clay, Roger W., Giuseppe, Cocciolo, Roberta, Colalillo, Alan, Coleman, Laura, Collica, Maria Rita Coluccia, Ruben, Conceição, Fernando, Contreras, Cooper, Mathew J., Alain, Cordier, Stephane, Coutu, Corbin, Covault, James, Cronin, Alex, Curutiu, Richard, Dallier, Bruno, Daniel, Sergio, Dasso, Kai, Daumiller, Dawson, Bruce R., de Almeida, Rogerio M., Manlio De Domenico, de Jong, Sijbrand J., Joao de Mello Neto, Ivan De Mitri, Jaime de Oliveira, Vitor de Souza, Luis del Peral, Olivier, Deligny, Hans, Dembinski, Niraj, Dhital, Claudio Di Giulio, Armando Di Matteo, Johana Chirinos Diaz, Mary Lucia Díaz Castro, Francisco, Diogo, Carola, Dobrigkeit, Wendy, Docters, Juan Carlos D'Olivo, Alexei, Dorofeev, Qader Dorosti Hasankiadeh, Maria Teresa Dova, Jan, Ebr, Ralph, Engel, Martin, Erdmann, Mona, Erfani, Escobar, Carlos O., Joao, Espadanal, Alberto, Etchegoyen, Pedro Facal San Luis, Heino, Falcke, Fang, Ke, Glennys, Farrar, Anderson, Fauth, Norberto, Fazzini, Ferguson, Andrew P., Mateus, Fernandes, Brian, Fick, Juan Manuel Figueira, Alberto, Filevich, Andrej, Filipčič, Brendan, Fox, Octavian, Fratu, Uwe, Fröhlich, Benjamin, Fuchs, Toshihiro, Fujii, Romain, Gaior, Beatriz, García, Sayri Tupac Garcia Roca, Diego Garcia Gamez, Diego Garcia Pinto, Gianpaolo, Garilli, Alberto Gascon Bravo, Florian, Gate, Hartmut, Gemmeke, Piera Luisa Ghia, Ugo, Giaccari, Marco, Giammarchi, Maria, Giller, Christian, Glaser, Henry, Glass, Mariano Gómez Berisso, Gómez Vitale, Primo F., Patrícia, Gonçalves, Gonzalez, Javier G., Nicolás, González, Ben, Gookin, Jacob, Gordon, Alessio, Gorgi, Peter, Gorham, Philippe, Gouffon, Stefan, Grebe, Nathan, Griffith, Aurelio, Grillo, Grubb, Trent D., Fausto, Guarino, Germano, Guedes, Matías Rolf Hampel, Patricia, Hansen, Diego, Harari, Harrison, Thomas A., Sebastian, Hartmann, John, Harton, Andreas, Haungs, Thomas, Hebbeker, Dieter, Heck, Philipp, Heimann, Herve, Alexander E., Hill, Gary C., Carlos, Hojvat, Nicholas, Hollon, Ewa, Holt, Piotr, Homola, Jörg, Hörandel, Pavel, Horvath, Miroslav, Hrabovský, Daniel, Huber, Tim, Huege, Antonio, Insolia, Paula Gina Isar, Ingolf, Jandt, Stefan, Jansen, Cecilia, Jarne, Mariela, Josebachuili, Alex, Kääpä, Olga, Kambeitz, Karl Heinz Kampert, Peter, Kasper, Igor, Katkov, Balazs, Kégl, Bianca, Keilhauer, Azadeh, Keivani, Ernesto, Kemp, Roger, Kieckhafer, Hans, Klages, Matthias, Kleifges, Jonny, Kleinfeller, Raphael, Krause, Nicole, Krohm, Oliver, Krömer, Daniel Kruppke Hansen, Daniel, Kuempel, Norbert, Kunka, Danielle, Lahurd, Luca, Latronico, Robert, Lauer, Markus, Lauscher, Pascal, Lautridou, Sandra Le Coz, Milton, Leão, Didier, Lebrun, Paul, Lebrun, Marcelo Augusto Leigui de Oliveira, Antoine Letessier Selvon, Isabelle Lhenry Yvon, Katrin, Link, Rebeca, López, Angeles Lopez Agüera, Karim, Louedec, Julio Lozano Bahilo, Lu, Lu, Agustin, Lucero, Marianne, Ludwig, Max, Malacari, Simone, Maldera, Manuela, Mallamaci, Jennifer, Maller, Dusan, Mandat, Paul, Mantsch, Analisa, Mariazzi, Vincent, Marin, Ioana, Mariş, Giovanni, Marsella, Daniele, Martello, Lilian, Martin, Humberto, Martinez, Oscar Martínez Bravo, Diane, Martraire, Jimmy Masías Meza, Hermann Josef Mathes, Sebastian, Mathys, James, Matthews, John, Matthews, Giorgio, Matthiae, Detlef, Maurel, Daniela, Maurizio, Eric, Mayotte, Peter, Mazur, Carlos, Medina, Gustavo Medina Tanco, Rebecca, Meissner, Maximilien, Melissas, Diego, Melo, Alexander, Menshikov, Stefano, Messina, Rishi, Meyhandan, Saša, Mićanović, Maria Isabel Micheletti, Lukas, Middendorf, Minaya, Ignacio A., Lino, Miramonti, Bogdan, Mitrica, Laura Molina Bueno, Silvia, Mollerach, Maria, Monasor, Delphine Monnier Ragaigne, François, Montanet, Carlo, Morello, Miguel, Mostafá, Moura, Celio A., Marcio Aparecido Muller, Gero, Müller, Sarah, Müller, Moritz, Münchmeyer, Roberto, Mussa, Gianni, Navarra, Sergio, Navas, Petr, Necesal, Lukas, Nellen, Anna, Nelles, Jens, Neuser, Nguyen, Phong H., Marcus, Niechciol, Lukas, Niemietz, Tim, Niggemann, Dave, Nitz, Dalibor, Nosek, Vladimir, Novotny, Lyberis, Nožka, Livingstone, Ochilo, Angela, Olinto, Micael, Oliveira, Noelia, Pacheco, Daniel Pakk Selmi Dei, Miroslav, Palatka, Juan, Pallotta, Nunzia, Palmieri, Philipp, Papenbreer, Gonzalo, Parente, Alejandra, Parra, Thomas, Paul, Miroslav, Pech, Jan, Pękala, Rodrigo, Pelayo, Iuri, Pepe, Lorenzo, Perrone, Emily, Petermann, Christine, Peters, Sergio, Petrera, Yevgeniy, Petrov, Jamyang, Phuntsok, Ricardo, Piegaia, Tanguy, Pierog, Pablo, Pieroni, Mário, Pimenta, Valerio, Pirronello, Manuel, Platino, Matthias, Plum, Alessio, Porcelli, Czeslaw, Porowski, Raul Ribeiro Prado, Paolo, Privitera, Michael, Prouza, Victor, Purrello, Quel, Eduardo J., Sven, Querchfeld, Sean, Quinn, Julian, Rautenberg, Olivier, Ravel, Diego, Ravignani, Benoît, Revenu, Jan, Ridky, Simone, Riggi, Markus, Risse, Pablo, Ristori, Vincenzo, Rizi, Washington Rodrigues de Carvalho, Iago Rodriguez Cabo, Gonzalo Rodriguez Fernandez, Jorge Rubén Rodriguez Rojo, Maria Dolores Rodríguez Frías, Dmytro, Rogozin, Germán, Ros, Jaime, Rosado, Tomas, Rossler, Markus, Roth, Esteban, Roulet, Adrian, Rovero, Saffi, Steven J., Alexandra, Saftoiu, Francesco, Salamida, Humberto, Salazar, Ahmed, Saleh, Francisco Salesa Greus, Gaetano, Salina, Federico, Sánchez, Patricia Sanchez Lucas, Santo, Catarina E., Edivaldo Moura Santos, Eva, Santos, Fred, Sarazin, Biswaijt, Sarkar, Raul, Sarmento, Ricardo, Sato, Nils, Scharf, Viviana, Scherini, Harald, Schieler, Peter, Schiffer, David, Schmidt, Olaf, Scholten, Harm, Schoorlemmer, Petr, Schovánek, Alexander, Schulz, Johannes, Schulz, Johannes, Schumacher, Sergio, Sciutto, Alberto, Segreto, Mariangela, Settimo, Amir, Shadkam, Shellard, Ronald C., Iván, Sidelnik, Guenter, Sigl, Octavian, Sima, Andrzej, Śmiałkowski, Radomir, Šmída, Gregory, Snow, Paul, Sommers, Sorokin, J., Ruben, Squartini, Srivastava, Yogendra N., Samo, Stanič, James, Stapleton, Jaroslaw, Stasielak, Maurice, Stephan, Anne, Stutz, Federico, Suarez, Tiina, Suomijärvi, Daniel Supanitsky, A., Michael, Sutherland, John, Swain, Zbigniew, Szadkowski, Marek, Szuba, Oscar Alejandro Taborda, Alex, Tapia, Mathieu, Tartare, Andreas, Tepe, Vanessa Menezes Theodoro, Charles, Timmermans, Todero Peixoto, Carlos J., Gabriel, Toma, Lenka, Tomankova, Bernardo, Tomé, Aurelio, Tonachini, Guillermo Torralba Elipe, Diego Torres Machado, Petr, Travnicek, Enrica, Trovato, Matias, Tueros, Ralf, Ulrich, Michael, Unger, Martin, Urban, Valdés Galicia, Jose F., Ines, Valiño, Laura, Valore, Guus van Aar, Patrick van Bodegom, van den Berg, Ad M., Sjoert van Velzen, Arjen van Vliet, Enrique, Varela, Bernardo Vargas Cárdenas, Gary, Varner, Vázquez, Jose R., Ricardo, Vázquez, Darko, Veberič, Valerio, Verzi, Jakub, Vicha, Mariela, Videla, Luis, Villaseñor, Brian, Vlcek, Serguei, Vorobiov, Hernan, Wahlberg, Oscar, Wainberg, David, Walz, Alan, Watson, Marc, Weber, Klaus, Weidenhaupt, Andreas, Weindl, Felix, Werner, Allan, Widom, Lawrence, Wiencke, Barbara, Wilczyńska, Henryk, Wilczyński, Martin, Will, Christopher, Williams, Tobias, Winchen, David, Wittkowski, Brian, Wundheiler, Sarka, Wykes, Tokonatsu, Yamamoto, Tolga, Yapici, Guofeng, Yuan, Alexey, Yushkov, Bruno, Zamorano, Enrique, Zas, Danilo, Zavrtanik, Marko, Zavrtanik, Ingyin, Zaw, Arnulfo, Zepeda, Jing, Zhou, Yue, Zhu, Marcelo Zimbres Silva, Michael, Ziolkowski, Francesca, Zuccarello, Rasha, Abbasi, Michihiko, Abe, Tareq Abu Zayyad, Monica, Allen, Robyn, Anderson, Ryuji, Azuma, Elliott, Barcikowski, Belz, John W., Bergman, Douglas R., Samuel Adam Blake, Robert, Cady, Min Jung Chae, Byung Gu Cheon, Junsei, Chiba, Michiyuki, Chikawa, Woo Ram Cho, Masaki, Fukushima, Takashi, Goto, William, Hanlon, Yoshio, Hayashi, Naoaki, Hayashida, Kinya, Hibino, Ken, Honda, Daisuke, Ikeda, Naoya, Inoue, Takaaki, Ishii, Rie, Ishimori, Hideo Ito (Utah, U., Riken, Dmitri, Ivanov, Jui, Charles C. H., Kenichi, Kadota, Fumio, Kakimoto, Oleg, Kalashev, Katsuaki, Kasahara, Hideyuki, Kawai, Saburo, Kawakami, Shingo, Kawana, Kazumasa, Kawata, Eiji, Kido, Hang Bae Kim, Ji Hee Kim, Ji Hyun Kim, Seiji, Kitamura, Yuki, Kitamura, Vadim, Kuzmin, Young Joon Kwon, Jian, Lan, Sun In Lim, Jon Paul Lundquist, Kazuhiro, Machida, Kai, Martens, Takeshi, Matsuda, Toshio, Matsuyama, Matthews, John N., Mayuko, Minamino, Keijiro, Mukai, Isaac, Myers, Keisuke, Nagasawa, Shigehiro, Nagataki, Toru, Nakamura, Toshiyuki, Nonaka, Asuka, Nozato, Shoichi, Ogio, Jun, Ogura, Munehiro, Ohnishi, Hideyuki, Ohoka, Kaoru, Oki, Takeshi, Okuda, Masaomi, Ono, Akitoshi, Oshima, Shunsuke, Ozawa, Park, Il H., Pshirkov, Maxim S., Douglas Chase Rodriguez, Grigory, Rubtsov, Dongsu, Ryu, Hiroyuki, Sagawa, Nobuyuki, Sakurai, Sampson, Amanda L., Scott, Lauren M., Priti Dhanesh Shah, Fumiya, Shibata, Tatsunobu, Shibata, Hideaki, Shimodaira, Bok Kyun Shin, Smith, Jeremy D., Pierre, Sokolsky, Wayne Springer, R., Benjamin Taylor Stokes, Stratton, Sean R., Thomas, Stroman, Takumi, Suzawa, Mai, Takamura, Masahiro, Takeda, Ryuji, Takeishi, Akimichi, Taketa, Masato, Takita, Yuichiro, Tameda, Hideki, Tanaka, Koichi, Tanaka, Manobu, Tanaka, Thomas, Stanton B., Thomson, Gordon B., Peter, Tinyakov, Igor, Tkachev, Hisao, Tokuno, Takayuki, Tomida, Sergey, Troitsky, Yoshiki, Tsunesada, Kazuki, Tsutsumi, Yukio, Uchihori, Shigeharu, Udo, Federico, Urban, Gina, Vasiloff, Tiffany, Wong, Hiroshi, Yamaoka, Katsuya, Yamazaki, Jongmann, Yang, Kenta, Yashiro, Shigeru, Yoshida, Hisashi, Yoshii, Rhett, Zollinger, Zachary, Zundel, Shogo, Konishi, Shingo, Wachi, Yoshiki, Nishimoto, Heungsu, Shin, Mai, Tsujimoto, Tomoya, Matsuhira, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Unité Scientifique de la Station de Nançay (USN), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), A., Aab, P., Abreu, M., Aglietta, E. J., Ahn, I., Al Samarai, I. F. M., Albuquerque, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Mu?iz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, Aramo, Carla, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, K. B., Barber, J., B?uml, C., Bau, J. J., Beatty, K. H., Becker, J. A., Bellido, C., Berat, M. E., Bertaina, X., Bertou, P. L., Biermann, P., Billoir, M., Blanco, C., Bleve, H., Bl?mer, M., Boh??ov?, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, S., Buitink, Buscemi, Mario, K. S., Caballero Mora, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A. G., Chavez, A., Chiavassa, J. A., Chinellato, J., Chudoba, Cilmo, Marco, R. W., Clay, G., Cocciolo, Colalillo, Roberta, A., Coleman, L., Collica, M. R., Coluccia, R., Concei??o, F., Contrera, M. J., Cooper, A., Cordier, S., Coutu, C. E., Covault, J., Cronin, A., Curutiu, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, S. J., de Jong, J. R. T., de Mello Neto, I., De Mitri, J., de Oliveira, V., de Souza, L., del Peral, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, A., Di Matteo, J. C., Diaz, M. L., D?az Castro, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, A., Dorofeev, Q., Dorosti Hasankiadeh, M. T., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, M., Fernande, B., Fick, J. M., Figueira, A., Filevich, A., Filip?i?, B. D., Fox, O., Fratu, U., Fr?hlich, B., Fuch, T., Fuji, R., Gaior, B., Garc?a, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, F., Gate, H., Gemmeke, P. L., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, M., G?mez Berisso, P. F., G?mez Vitale, P., Gon?alve, J. G., Gonzalez, N., Gonz?lez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S., Grebe, N., Griffith, A. F., Grillo, T. D., Grubb, Y., Guardincerri, Guarino, Fausto, G. P., Guede, M. R., Hampel, P., Hansen, D., Harari, T. A., Harrison, S., Hartmann, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A. E., Herve, G. C., Hill, C., Hojvat, N., Hollon, E., Holt, P., Homola, J. R., H?randel, P., Horvath, M., Hrabovsk?, D., Huber, T., Huege, A., Insolia, P. G., Isar, K., Islo, I., Jandt, S., Jansen, C., Jarne, M., Josebachuili, A., K??p?, O., Kambeitz, K. H., Kampert, P., Kasper, I., Katkov, B., K?gl, B., Keilhauer, A., Keivani, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Kr?mer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G., La Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S., Le Coz, M. S. A. B., Le?o, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., L?pez, A., Lopez Ag?era, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, M. C., Maccarone, M., Malacari, S., Maldera, M., Mallamaci, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari?, G., Marsella, D., Martello, L., Martin, H., Martinez, O., Mart?nez Bravo, D., Martraire, J. J., Mas?as Meza, H. J., Mathe, S., Mathy, J. A. J., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P. O., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mi?anovi?, M. I., Micheletti, L., Middendorf, I. A., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, C., Morello, M., Mostaf?, C. A., Moura, M. A., Muller, G., M?ller, M., M?nchmeyer, R., Mussa, G., Navarra, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, V., Novotny, L., No?ka, L., Ochilo, A., Olinto, M., Oliveira, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, P., Papenbreer, G., Parente, A., Parra, T., Paul, M., Pech, J., P?kala, R., Pelayo, I. M., Pepe, L., Perrone, R., Pesce, E., Petermann, C., Peter, S., Petrera, A., Petrolini, Y., Petrov, J., Phuntsok, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, A., Porcelli, C., Porowski, R. R., Prado, P., Privitera, M., Prouza, V., Purrello, E. J., Quel, S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, V., Rizi, J., Robert, W., Rodrigues de Carvalho, I., Rodriguez Cabo, G., Rodriguez Fernandez, J., Rodriguez Rojo, M. D., Rodr?guez Fr?a, G., Ro, J., Rosado, T., Rossler, M., Roth, E., Roulet, A. C., Rovero, S. J., Saffi, A., Saftoiu, F., Salamida, H., Salazar, A., Saleh, F., Salesa Greu, G., Salina, F., S?nchez, P., Sanchez Luca, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, O., Scholten, H., Schoorlemmer, P., Schov?nek, A., Schulz, J., Schulz, J., Schumacher, S. J., Sciutto, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., ?mia?kowski, R., ?m?da, G. R., Snow, P., Sommer, J., Sorokin, R., Squartini, Y. N., Srivastava, S., Stani?, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomij?rvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, O. A., Taborda, A., Tapia, M., Tartare, V. M., Theodoro, C., Timmerman, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tom?, A., Tonachini, G., Torralba Elipe, D., Torres Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, Galicia, J. F. Vald?s., I., Vali?o, Valore, Laura, G., van Aar, A. M., van den Berg, S., van Velzen, A., van Vliet, E., Varela, B., Vargas C?rdena, G., Varner, J. R., V?zquez, R. A., V?zquez, D., Veberi?, V., Verzi, J., Vicha, M., Videla, L., Villase?or, B., Vlcek, S., Vorobiov, H., Wahlberg, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, A., Widom, L., Wiencke, B., Wilczy?ska, H., Wilczy?ski, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, R. U., Abbasi, M., Abe, T., Abu Zayyad, M., Allen, R., Anderson, R., Azuma, E., Barcikowski, J. W., Belz, D. R., Bergman, S. A., Blake, R., Cady, M. J., Chae, B. G., Cheon, J., Chiba, M., Chikawa, W. R., Cho, T., Fujii, M., Fukushima, T., Goto, W., Hanlon, Y., Hayashi, N., Hayashida, K., Hibino, K., Honda, D., Ikeda, N., Inoue, T., Ishii, R., Ishimori, H., Ito, D., Ivanov, C. C. H., Jui, K., Kadota, F., Kakimoto, O., Kalashev, K., Kasahara, H., Kawai, S., Kawakami, S., Kawana, K., Kawata, E., Kido, H. B., Kim, J. H., Kim, S., Kitamura, Y., Kitamura, V., Kuzmin, Y. J., Kwon, J., Lan, S. I., Lim, J. P., Lundquist, K., Machida, K., Marten, T., Matsuda, T., Matsuyama, J. N., Matthew, M., Minamino, K., Mukai, I., Myer, K., Nagasawa, S., Nagataki, T., Nakamura, T., Nonaka, A., Nozato, S., Ogio, J., Ogura, M., Ohnishi, H., Ohoka, K., Oki, T., Okuda, M., Ono, A., Oshima, S., Ozawa, I. H., Park, M. S., Pshirkov, D. C., Rodriguez, G., Rubtsov, D., Ryu, H., Sagawa, N., Sakurai, A. L., Sampson, L. M., Scott, P. D., Shah, F., Shibata, T., Shibata, H., Shimodaira, B. K., Shin, J. D., Smith, P., Sokolsky, R. W., Springer, B. T., Stoke, S. R., Stratton, T. A., Stroman, T., Suzawa, M., Takamura, M., Takeda, R., Takeishi, A., Taketa, M., Takita, Y., Tameda, H., Tanaka, K., Tanaka, M., Tanaka, S. B., Thoma, G. B., Thomson, P., Tinyakov, I., Tkachev, H., Tokuno, T., Tomida, S., Troitsky, Y., Tsunesada, K., Tsutsumi, Y., Uchihori, S., Udo, F., Urban, G., Vasiloff, T., Wong, R., Yamane, H., Yamaoka, K., Yamazaki, J., Yang, K., Yashiro, Y., Yoneda, S., Yoshida, H., Yoshii, R., Zollinger, Z., Zundel, I. A., Samarai, I. F., M., J. A., Castillo, J., Alvarez Muñiz, R. A., Batista, C., Aramo, J., Bäuml, Bleve, Carla, H., Blümer, M., Boháčová, M., Buscemi, M., Cilmo, Cocciolo, Giuseppe, R., Colalillo, Coluccia, MARIA RITA, R., Conceição, R. M., De, M. D., Domenico, S. J., De, J. R., T., DE MITRI, Ivan, J. d., Oliveira, V. d., Souza, L. d., Peral, C. D., Giulio, A. D., Matteo, M. L., Díaz, Q. D., Hasankiadeh, P. F., San, A., Filipčič, U., Fröhlich, B., García, S. T., Garcia, A. G., Bravo, M. G., Berisso, P. F., Gómez, P., Gonçalve, N., González, F., Guarino, J. R., Hörandel, M., Hrabovský, A., Kääpä, B., Kégl, O., Krömer, G. L., Rosa, S. L., Coz, M. S., A., M. A., Leigui, R., López, A. L., Agüera, J. L., Bahilo, I. C., Mariş, Marsella, Giovanni, Martello, Daniele, O. M., Bravo, J. J., Masía, J. A., J., S., Mićanović, D. M., Ragaigne, M., Mostafá, G., Müller, M., Münchmeyer, L., Nožka, D. P., Selmi Dei, J., Pękala, Perrone, Lorenzo, W. R., De, I. R., Cabo, G. R., Fernandez, J. R., Rojo, M. D., Rodríguez Fría, F. S., Greu, F., Sánchez, Scherini, Viviana, P., Schovánek, A., Śmiałkowski, R., Šmída, S., Stanič, T., Suomijärvi, C. J., Todero, B., Tomé, G. T., Elipe, D. T., Machado, J. F., Valdé, I., Valiño, L., Valore, G. v., Aar, A. M., Van, S. v., Velzen, A. v., Vliet, B. V., Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, L., Villaseñor, B., Wilczyńska, H., Wilczyński, M. Z., Silva, T. P., Auger, C. C., H., T. T., Array, A. Aab, P. Abreu, M. Aglietta, E. J. Ahn, I. A. Samarai, I. F. M., I. Allekotte, J. Allen, P. Allison, A. Almela, J. A. Castillo, J. Alvarez-Muñiz, R. A. Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, C. Aramo, F. Arquero, H. Asorey, P. Assi, J. Aublin, M. Ave, M. Avenier, G. Avila, A. M. Badescu, K. B. Barber, J. Bäuml, C. Bau, J. J. Beatty, K. H. Becker, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermann, P. Billoir, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancu, P. Brogueira, W. C. Brown, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K. S. Caballero-Mora, B. Caccianiga, L. Caccianiga, M. Candusso, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, A. G. Chavez, A. Chiavassa, J. A. Chinellato, J. Chudoba, M. Cilmo, R. W. Clay, G. Cocciolo, R. Colalillo, A. Coleman, L. Collica, M. R. Coluccia, R. Conceição, F. Contrera, M. J. Cooper, A. Cordier, S. Coutu, C. E. Covault, J. Cronin, A. Curutiu, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de, M. D. Domenico, S. J. de, J. R. T., I. D. Mitri, J. d. Oliveira, V. d. Souza, L. d. Peral, O. Deligny, H. Dembinski, N. Dhital, C. D. Giulio, A. D. Matteo, J. C. Diaz, M. L. Díaz, F. Diogo, C. Dobrigkeit, W. Docter, J. C. D'Olivo, A. Dorofeev, Q. D. Hasankiadeh, M. T. Dova, J. Ebr, R. Engel, M. Erdmann, M. Erfani, C. O. Escobar, J. Espadanal, A. Etchegoyen, P. F. San, H. Falcke, K. Fang, G. Farrar, A. C. Fauth, N. Fazzini, A. P. Ferguson, M. Fernande, B. Fick, J. M. Figueira, A. Filevich, A. Filipčič, B. D. Fox, O. Fratu, U. Fröhlich, B. Fuch, T. Fuji, R. Gaior, B. García, S. T. Garcia, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. G. Bravo, F. Gate, H. Gemmeke, P. L. Ghia, U. Giaccari, M. Giammarchi, M. Giller, C. Glaser, H. Gla, M. G. Berisso, P. F. Gómez, P. Gonçalve, J. G. Gonzalez, N. González, B. Gookin, A. Gorgi, P. Gorham, P. Gouffon, S. Grebe, N. Griffith, A. F. Grillo, T. D. Grubb, Y. Guardincerri, F. Guarino, G. P. Guede, M. R. Hampel, P. Hansen, D. Harari, T. A. Harrison, S. Hartmann, J. L. Harton, A. Haung, T. Hebbeker, D. Heck, P. Heimann, A. E. Herve, G. C. Hill, C. Hojvat, N. Hollon, E. Holt, P. Homola, J. R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, P. G. Isar, K. Islo, I. Jandt, S. Jansen, C. Jarne, M. Josebachuili, A. Kääpä, O. Kambeitz, K. H. Kampert, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, E. Kemp, R. M. Kieckhafer, H. O. Klage, M. Kleifge, J. Kleinfeller, R. Krause, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, N. Kunka, G. L. Rosa, D. LaHurd, L. Latronico, R. Lauer, M. Lauscher, P. Lautridou, S. L. Coz, M. S. A., D. Lebrun, P. Lebrun, M. A. Leigui, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. L. Agüera, K. Louedec, J. L. Bahilo, L. Lu, A. Lucero, M. Ludwig, M. C. Maccarone, M. Malacari, S. Maldera, M. Mallamaci, J. Maller, D. Mandat, P. Mantsch, A. G. Mariazzi, V. Marin, I. C. Mariş, G. Marsella, D. Martello, L. Martin, H. Martinez, O. M. Bravo, D. Martraire, J. J. Masía, H. J. Mathe, S. Mathy, J. A. J., J. Matthew, G. Matthiae, D. Maurel, D. Maurizio, E. Mayotte, P. O. Mazur, C. Medina, G. Medina-Tanco, M. Melissa, D. Melo, E. Menichetti, A. Menshikov, S. Messina, R. Meyhandan, S. Mićanović, M. I. Micheletti, L. Middendorf, I. A. Minaya, L. Miramonti, B. Mitrica, L. Molina-Bueno, S. Mollerach, M. Monasor, D. M. Ragaigne, F. Montanet, C. Morello, M. Mostafá, C. A. Moura, M. A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra, S. Nava, P. Necesal, L. Nellen, A. Nelle, J. Neuser, M. Niechciol, L. Niemietz, T. Niggemann, D. Nitz, D. Nosek, V. Novotny, L. Nožka, L. Ochilo, A. Olinto, M. Oliveira, N. Pacheco, D. P. Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, P. Papenbreer, G. Parente, A. Parra, T. Paul, M. Pech, J. Pękala, R. Pelayo, I. M. Pepe, L. Perrone, R. Pesce, E. Petermann, C. Peter, S. Petrera, A. Petrolini, Y. Petrov, J. Phuntsok, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, A. Porcelli, C. Porowski, R. R. Prado, P. Privitera, M. Prouza, V. Purrello, E. J. Quel, S. Querchfeld, S. Quinn, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. Riggi, M. Risse, P. Ristori, V. Rizi, J. Robert, W. R. de, I. R. Cabo, G. R. Fernandez, J. R. Rojo, M. D. Rodríguez-Fría, G. Ro, J. Rosado, T. Rossler, M. Roth, E. Roulet, A. C. Rovero, S. J. Saffi, A. Saftoiu, F. Salamida, H. Salazar, A. Saleh, F. S. Greu, G. Salina, F. Sánchez, P. Sanchez-Luca, C. E. Santo, E. Santo, E. M. Santo, F. Sarazin, B. Sarkar, R. Sarmento, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, O. Scholten, H. Schoorlemmer, P. Schovánek, A. Schulz, J. Schulz, J. Schumacher, S. J. Sciutto, A. Segreto, M. Settimo, A. Shadkam, R. C. Shellard, I. Sidelnik, G. Sigl, O. Sima, A. Śmiałkowski, R. Šmída, G. R. Snow, P. Sommer, J. Sorokin, R. Squartini, Y. N. Srivastava, S. Stanič, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A. D. Supanitsky, M. S. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, O. A. Taborda, A. Tapia, M. Tartare, V. M. Theodoro, C. Timmerman, C. J. Todero, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, G. T. Elipe, D. T. Machado, P. Travnicek, E. Trovato, M. Tuero, R. Ulrich, M. Unger, M. Urban, J. F. Valdé, I. Valiño, L. Valore, G. v. Aar, A. M. van, S. v. Velzen, A. v. Vliet, E. Varela, B. V. Cárdena, G. Varner, J. R. Vázquez, R. A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, B. Vlcek, S. Vorobiov, H. Wahlberg, O. Wainberg, D. Walz, A. A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, A. Widom, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. William, T. Winchen, D. Wittkowski, B. Wundheiler, S. Wyke, T. Yamamoto, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano, E. Za, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, J. Zhou, Y. Zhu, M. Z. Silva, M. Ziolkowski, T. P. Auger, R. U. Abbasi, M. Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, R. Cady, M. J. Chae, B. G. Cheon, J. Chiba, M. Chikawa, W. R. Cho, T. Fujii, M. Fukushima, T. Goto, W. Hanlon, Y. Hayashi, N. Hayashida, K. Hibino, K. Honda, D. Ikeda, N. Inoue, T. Ishii, R. Ishimori, H. Ito, D. Ivanov, C. C. H., K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, H. Kawai, S. Kawakami, S. Kawana, K. Kawata, E. Kido, H. B. Kim, J. H. Kim, S. Kitamura, Y. Kitamura, V. Kuzmin, Y. J. Kwon, J. Lan, S. I. Lim, J. P. Lundquist, K. Machida, K. Marten, T. Matsuda, T. Matsuyama, J. N. Matthew, M. Minamino, K. Mukai, I. Myer, K. Nagasawa, S. Nagataki, T. Nakamura, T. Nonaka, A. Nozato, S. Ogio, J. Ogura, M. Ohnishi, H. Ohoka, K. Oki, T. Okuda, M. Ono, A. Oshima, S. Ozawa, I. H. Park, M. S. Pshirkov, D. C. Rodriguez, G. Rubtsov, D. Ryu, H. Sagawa, N. Sakurai, A. L. Sampson, L. M. Scott, P. D. Shah, F. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, J. D. Smith, P. Sokolsky, R. W. Springer, B. T. Stoke, S. R. Stratton, T. A. Stroman, T. Suzawa, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, S. B. Thoma, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, Y. Tsunesada, K. Tsutsumi, Y. Uchihori, S. Udo, F. Urban, G. Vasiloff, T. Wong, R. Yamane, H. Yamaoka, K. Yamazaki, J. Yang, K. Yashiro, Y. Yoneda, S. Yoshida, H. Yoshii, R. Zollinger, Z. Zundel, T. T. Array, and Research unit Astroparticle Physics

Subjects
Ciencias Físicas, Astronomy, Rays, Astrophysics, Astroparticle physics, Cosmic rays, 01 natural sciences, law.invention, Pierre, law, Anisotropy, Telescope, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, [PHYS]Physics [physics], Energy, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, astroparticle physic, Radiación cósmica, Auger, Cosmic, Arrival, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, CIENCIAS NATURALES Y EXACTAS, High, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, SURFACE DETECTOR, ICECUBE, AIR-SHOWER ARRAY, Directions, cosmic rays, 0103 physical sciences, Instrumentation and Methods for Astrophysics (astro-ph.IM), Ciencias Exactas, Pierre Auger Observatory, SPECTRUM, 010308 nuclear & particles physics, Array, Spectral density, Spherical harmonics, Física, Astronomy and Astrophysics, ASTROFÍSICA, Ultra, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astronomía, Dipole, RESOLUTION, Space and Planetary Science, Experimental High Energy Physics, Quadrupole, Observatory, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

Spherical harmonic moments are well-suited for capturing anisotropy at any scale in the flux of cosmic rays. An unambiguous measurement of the full set of spherical harmonic coefficients requires full-sky coverage. This can be achieved by combining data from observatories located in both the northern and southern hemispheres. To this end, a joint analysis using data recorded at the Telescope Array and the Pierre Auger Observatory above 1019 eV is presented in this work. The resulting multipolar expansion of the flux of cosmic rays allows us to perform a series of anisotropy searches, and in particular to report on the angular power spectrum of cosmic rays above 1019 eV. No significant deviation from isotropic expectations is found throughout the analyses performed. Upper limits on the amplitudes of the dipole and quadrupole moments are derived as a function of the direction in the sky, varying between 7% and 13% for the dipole and between 7% and 10% for a symmetric quadrupole., Facultad de Ciencias Exactas

Published
2014

31. Search for Spatial Correlations of Neutrinos with Ultra-high-energy Cosmic Rays

Author

Albert, A., Alves, S., Belhorma, B., Martínez-Mora, J. A., Shah, P. D., Shibasaki, Y., Shibata, F., Shibata, N., Shibata, T., Shimodaira, H., Shin, B. K., Shin, H. S., Shinto, D., Smith, J. D., Martino, B., Sokolsky, P., Sone, N., Stokes, B. T., Stroman, T. A., Takagi, Y., Takahashi, Y., Takamura, M., Takeda, M., Takeishi, R., Taketa, A., Melis, K., Takita, M., Tameda, Y., Tanaka, H., Tanaka, K., Tanaka, M., Tanoue, Y., Thomas, S. B., Thomson, G. B., Tinyakov, P., Tkachev, I., Migliozzi, P., Tokuno, H., Tomida, T., Troitsky, S., Tsuda, R., Tsunesada, Y., Uchihori, Y., Udo, S., Uehama, T., Urban, F., Warren, D., Moussa, A., Wong, T., Yamamoto, M., Yamazaki, K., Yashiro, K., Yoshida, F., Yoshioka, Y., Zhezher, Y., Zundel, Z., IceCube Collaboration, Pierre Auger Collaboration, Muller, R., Telescope Array Collaboration, Nauta, L., Navas, S., Nezri, E., Păun, A., Bendahman, M., Păvălaş, G. E., Pellegrino, C., Perrin-Terrin, M., Pestel, V., Piattelli, P., Pieterse, C., Poirè, C., Popa, V., Pradier, T., Randazzo, N., Bertin, V., Real, D., Reck, S., Riccobene, G., Romanov, A., Sánchez-Losa, A., Salesa Greus, F., Samtleben, D. F. E., Sanguineti, M., Sapienza, P., Schnabel, J., Biagi, S., Schumann, J., Schüssler, F., Seneca, J., Spurio, M., Stolarczyk, Th., Taiuti, M., Tayalati, Y., Tingay, S. J., Vallage, B., Van Elewyck, V., Bissinger, M., Versari, F., Viola, S., Vivolo, D., Wilms, J., Zavatarelli, S., Zegarelli, A., Zornoza, J. D., Zúñiga, J., Abbasi, R., Ackermann, M., Boumaaza, J., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Alameddine, J. M., Alispach, C., Alves, A. A., Amin, N. M., Anderson, T., Anton, G., Bouta, M., Argüelles, C., Ashida, Y., Axani, S., Bai, X., Balagopal, V. A., Barbano, A., Barwick, S. W., Bastian-Querner, Benjamin, Basu, V., Baur, S., Bouwhuis, M. C., Bay, R., Beatty, J. J., Becker, K.-H., Becker Tjus, J., Bellenghi, C., BenZvi, S., Berley, D., Bernardini, E., Besson, D. Z., Binder, G., Brânzaş, H., Bindig, D., Blaufuss, E., Blot, Summer, Boddenberg, M., Bontempo, F., Borowka, J., Böser, S., Böttcher, J., Bourbeau, E., Bradascio, Federica, Bruijn, R., Braun, J., Brinson, B., Bron, S., Brostean-Kaiser, Jannes, Browne, S., Burgman, A., Burley, R. T., Busse, R. S., Campana, M. A., Carnie-Bronca, E. G., André, M., Brunner, J., Chen, Z., Chirkin, D., Choi, K., Clark, B. A., Clark, K., Classen, L., Collin, G. H., Conrad, J. M., Coppin, P., Correa, P., Busto, J., Cowen, D. F., Cross, R., Dappen, C., Dave, P., De Clercq, C., DeLaunay, J. J., López, D. Delgado, Dembinski, H., Deoskar, K., Desai, A., Caiffi, B., Desiati, P., de Vries, K. D., de Wasseige, G., de With, M., DeYoung, T., A. Diaz, A. Diaz., Díaz-Vélez, J. C., Dittmer, M., Dujmovic, H., Dunkman, M., Calvo, D., DuVernois, M. A., Dvorak, E., Ehrhardt, T., Eller, P., Erpenbeck, H., Evans, J., Evenson, P. A., Fan, K. L., Fazely, A. R., Fedynitch, A., Capone, A., Feigl, N., Fiedlschuster, S., Fienberg, A. T., Filimonov, K., Finley, C., Fischer, Leander, Fox, D., Franckowiak, A., Friedman, E., Fritz, A., Caramete, L., Fürst, P., Glaser, C., Günther, C., Hill, C., Kappes, A., Karle, A., Kheirandish, A., Kopper, C., Oeyen, B., Sarkar, S., Carr, J., Cheminant, K. Almeida, Kääpä, A., Kemp, J., Pedreira, F., Gaisser, T. K., Gallagher, J., Ganster, E., Garcia, A., Garrappa, Simone, Carretero, V., Gerhardt, L., Ghadimi, A., Glauch, T., Glüsenkamp, T., Gonzalez, J. G., Goswami, S., Grant, D., Grégoire, T., Griswold, S., Hill, G. C., Celli, S., Gutjahr, P., Haack, C., Hallgren, A., Halliday, R., Halve, L., Halzen, F., Ha Minh, M., Hanson, K., Hardin, J., Harnisch, A. A., Chabab, M., Haungs, A., Hebecker, D., Helbing, K., Henningsen, F., Hettinger, E. C., Hickford, S., Hignight, J., Hoffman, K. D., Hoffmann, R., Hokanson-Fasig, B., Anghinolfi, M., Chau, T. N., Hoshina, K., Huber, M., Huber, T., Hultqvist, K., Hünnefeld, M., Hussain, R., Hymon, K., In, S., Iovine, N., Ishihara, A., Cherkaoui El Moursli, R., Jansson, M., Japaridze, G. S., Jeong, M., Jin, M., Jones, B. J. P., Kang, D., Kang, W., Kang, X., Kappesser, D., Kardum, L., Chiarusi, T., Karg, T., Karl, M., Kauer, M., Kellermann, M., Kelley, J. L., Kin, K., Kintscher, T., Kiryluk, J., Klein, S. R., Koirala, R., Circella, M., Kolanoski, H., Kontrimas, T., Köpke, L., Kopper, S., Koskinen, D. J., Koundal, P., Kovacevich, M., Kowalski, Marek, Kozynets, T., Kun, E., Coleiro, A., Kurahashi, N., Lad, Neha Navnitkumar, Gualda, C. Lagunas, Lanfranchi, J. L., Larson, M. J., Lauber, F., Lazar, J. P., Lee, J. W., Leonard, K., Leszczyńska, A., Coniglione, R., Li, Y., Lincetto, M., Liu, Q. R., Liubarska, M., Lohfink, E., Mariscal, C. J. Lozano, Lucarelli, F., Ludwig, A., Luszczak, W., Lyu, Y., Coyle, P., Ma, Wing Yan, Madsen, J., Mahn, K. B. M., Makino, Y., Mancina, S., Martinez-Soler, I., Maruyama, R., Mase, K., McElroy, T., McNally, F., Creusot, A., Mead, J. V., Meagher, K., Mechbal, Sarah, Medina, A., Meier, M., Meighen-Berger, S., Micallef, J., Mockler, D., Montaruli, T., Moore, R. W., Díaz, A. F., Morse, R., Moulai, M., Naab, Richard, Nagai, R., Naumann, U., Necker, Jannis David, Nguyễn, L. V., Niederhausen, H., Nisa, M. U., Nowicki, S. C., O'Fearraigh, B., Obertacke Pollmann, A., Oehler, M., Olivas, A., O'Sullivan, E., Pandya, H., Pankova, D. V., Park, N., Parker, G. K., Paudel, E. N., Paul, L., Ardid, M., Alves, Jr. A. A., de los Heros, C. Pérez, Peters, L., Peterson, J., Philippen, S., Pieper, S., Pittermann, M., Pizzuto, A., Plum, M., Popovych, Y., Porcelli, A., Andeen, K., Rodriguez, M. Prado, Price, P. B., Pries, B., Przybylski, G. T., Raab, C., Rack-Helleis, J., Raissi, A., Rameez, M., Rawlins, K., Rea, I. C., Botner, O., Rehman, A., Reichherzer, P., Reimann, R., Renzi, G., Resconi, E., Reusch, Simeon, Rhode, W., Richman, M., Riedel, B., Roberts, E. J., Chen, C., Robertson, S., Roellinghoff, G., Rongen, M., Rott, C., Ruhe, T., Ryckbosch, D., Cantu, D. Rysewyk, Safa, I., Saffer, J., Herrera, S. E. Sanchez, Diaz, A., Sandrock, A., Santander, M., Satalecka, K., Schaufel, M., Schindler, S., Schmidt, T., Schneider, A., Schneider, J., Schröder, F. G., Schumacher, L., Distefano, C., Schwefer, G., Sclafani, S., Seckel, D., Seunarine, S., Sharma, A., Shefali, S., Silva, M., Skrzypek, B., Smithers, B., Snihur, R., Di Palma, I., Soedingrekso, J., Soldin, D., Spannfellner, C., Spiczak, G. M., Spiering, C., Stachurska, Juliana, Stamatikos, M., Stanev, T., Stein, Robert, Stettner, J., Domi, A., Steuer, A., Stezelberger, T., Stürwald, T., Stuttard, T., Sullivan, G. W., Taboada, I., Ter-Antonyan, S., Tilav, S., Tischbein, F., Tollefson, K., Donzaud, C., Tönnis, C., Toscano, S., Tosi, D., Trettin, Alexander, Tselengidou, M., Tung, C. F., Turcati, A., Turcotte, R., Turley, C. F., Twagirayezu, J. P., Dornic, D., Ty, B., Unland Elorrieta, M. A., Valtonen-Mattila, N., Vandenbroucke, J., van Eijndhoven, N., Vannerom, D., Santen, Jakob van, Verpoest, S., Walck, C., Watson, T. B., Ardid, S., Drouhin, D., Weaver, C., Weigel, P., Weindl, A., Weiss, M. J., Weldert, J., Wendt, C., Werthebach, J., Weyrauch, M., Whitehorn, N., Wiebusch, C. H., Eberl, T., Williams, D. R., Wolf, M., Woschnagg, K., Wrede, G., Wulff, J., Xu, X. W., Yanez, J. P., Yoshida, S., Yu, S., Yuan, T., van Eeden, T., Zhang, Z., Zhelnin, P., Abreu, P., Aglietta, M., Albury, J. M., Allekotte, I., Almela, A., Alvarez-Muñiz, J., Alves Batista, R., Anastasi, G. A., van Eijk, D., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Araújo Ferreira, P. R., Arnone, E., Velázquez, J. C. 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C., Hößl, J., Marsella, G., Martello, D., Martinelli, S., Martínez Bravo, O., Mastrodicasa, M., Mathes, H. J., Matthews, J., Matthiae, G., Mayotte, E., Mayotte, S., Hofestädt, J., Mazur, P. O., Medina-Tanco, G., Melo, D., Menshikov, A., Michal, S., Micheletti, M. I., Miramonti, L., Mollerach, S., Montanet, F., Morejon, L., Huang, F., Morello, C., Mostafá, M., Müller, A. L., Muller, M. A., Mulrey, K., Mussa, R., Muzio, M., Namasaka, W. M., Nasr-Esfahani, A., Nellen, L., Illuminati, G., Nicora, G., Niculescu-Oglinzanu, M., Niechciol, M., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Nucita, A., Núñez, L. A., Oliveira, C., James, C. W., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Pawlowsky, J., Pech, M., Pȩkala, J., Pelayo, R., Peña-Rodriguez, J., Jisse-Jung, B., Pereira Martins, E. 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W., Kimura, Y., Kishigami, S., Kubota, Y., Kurisu, S., Maderer, L., Kuzmin, V., Kuznetsov, M., Kwon, Y. J., Lee, K. H., Lubsandorzhiev, B., Machida, K., Matsumiya, H., Matsuyama, T., Matthews, J. N., Mayta, R., Manczak, J., Minamino, M., Mukai, K., Myers, I., Nagataki, S., Nakai, K., Nakamura, R., Nakamura, T., Nakamura, Y., Nakazawa, A., Marcelin, M., Nishio, E., Nonaka, T., Oda, H., Ogio, S., Ohnishi, M., Ohoka, H., Oku, Y., Okuda, T., Omura, Y., Ono, M., Margiotta, A., Onogi, R., Oshima, A., Ozawa, S., Park, I. H., Potts, M., Pshirkov, M. S., Remington, J., Rodriguez, D. C., Rubtsov, G. I., Ryu, D., Marinelli, A., Sagawa, H., Sahara, R., Saito, Y., Sakaki, N., Sako, T., Sakurai, N., Sano, K., Sato, K., Seki, T., Sekino, K., Vriendenkring VUB, Elementary Particle Physics, Physics, Guarino, Fausto, Valore, Laura, Colalillo, Roberta, A. Albert, S. Alve, M. Andr??, M. Anghinolfi, M. A., S. Ardid, J.-J. Aubert, J. Aublin, B. Baret, S. Basa, B. Belhorma, M. Bendahman, V. Bertin, S. Biagi, M. Bissinger, J. Boumaaza, M. Bouta, M. C. Bouwhui, H. Br??nza??, R. Bruijn, J. Brunner, J. Busto, B. Caiffi, D. Calvo, A. Capone, L. Caramete, J. Carr, V. Carretero, S. Celli, M. Chabab, T. N. Chau, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, A. Coleiro, R. Coniglione, P. Coyle, A. Creusot, A. F. D??az, C. Distefano, I. Di Palma, A. Domi, C. Donzaud, D. Dornic, D. Drouhin, T. Eberl, T. van Eeden, D. van Eijk, N. El Khayati, A. Enzenh??fer, P. Fermani, G. Ferrara, F. Filippini, L. Fusco, Y. Gatelet, P. Gay, H. Glotin, R. Gozzini, R. Gracia Ruiz, K. Graf, C. Guidi, S. Hallmann, H. van Haren, A. J. Heijboer, Y. Hello, J. J. Hern??ndez-Rey, J. H??ssl, J. Hofest??dt, F. Huang, G. Illuminati, C. W. Jame, B. Jisse-Jung, M. De Jong, P. de Jong, M. Kadler, O. Kalekin, U. Katz, N. R. Khan-Chowdhury, A. Kouchner, I. Kreykenbohm, V. Kulikovskiy, R. Lahmann, R. Le Breton, S. LeStum, D. Lef??vre, E. Leonora, G. Levi, D. Lopez-Coto, S. Loucato, L. Maderer, J. Manczak, M. Marcelin, A. Margiotta, A. Marinelli, J. A. Mart??nez-Mora, B. Martino, K. Meli, P. Migliozzi, A. Moussa, R. Muller, L. Nauta, S. Nava, E. Nezri, B. ??. Fearraigh, A. P??un, G. E. P??v??la??, C. Pellegrino, M. Perrin-Terrin, V. Pestel, P. Piattelli, C. Pieterse, C. Poir??, V. Popa, T. Pradier, N. Randazzo, D. Real, S. Reck, G. Riccobene, A. Romanov, A. S??nchez-Losa, F. Salesa Greu, D. F. E. Samtleben, M. Sanguineti, P. Sapienza, J. Schnabel, J. Schumann, F. Sch??ssler, J. Seneca, M. Spurio, Th. Stolarczyk, M. Taiuti, Y. Tayalati, S. J. Tingay, B. Vallage, V. Van Elewyck, F. Versari, S. Viola, D. Vivolo, J. Wilm, S. Zavatarelli, A. Zegarelli, J. D. Zornoza, J. Z????iga, R. Abbasi, M. Ackermann, J. Adam, J. A. Aguilar, M. Ahler, M. Ahren, J. M. Alameddine, C. Alispach, A. A. Alves Jr., N. M. Amin, K. Andeen, T. Anderson, G. Anton, C. Arg??elle, Y. Ashida, S. Axani, X. Bai, A. Balagopal V., A. Barbano, S. W. Barwick, B. Bastian, V. Basu, S. Baur, R. Bay, J. J. Beatty, K.-H. Becker, J. Becker Tju, C. Bellenghi, S. BenZvi, D. Berley, E. Bernardini, D. Z. Besson, G. Binder, D. Bindig, E. Blaufu, S. Blot, M. Boddenberg, F. Bontempo, J. Borowka, S. B??ser, O. Botner, J. B??ttcher, E. Bourbeau, F. Bradascio, J. Braun, B. Brinson, S. Bron, J. Brostean-Kaiser, S. Browne, A. Burgman, R. T. Burley, R. S. Busse, M. A. Campana, E. G. Carnie-Bronca, C. Chen, Z. Chen, D. Chirkin, K. Choi, B. A. Clark, K. Clark, L. Classen, G. H. Collin, J. M. Conrad, P. Coppin, P. Correa, D. F. Cowen, R. Cro, C. Dappen, P. Dave, C. De Clercq, J. J. DeLaunay, D. Delgado L??pez, H. Dembinski, K. Deoskar, A. Desai, P. Desiati, K. D. de Vrie, G. de Wasseige, M. de With, T. DeYoung, A. Diaz, J. C. D??az-V??lez, M. Dittmer, H. Dujmovic, M. Dunkman, M. A. DuVernoi, E. Dvorak, T. Ehrhardt, P. Eller, H. Erpenbeck, J. Evan, P. A. Evenson, K. L. Fan, A. R. Fazely, A. Fedynitch, N. Feigl, S. Fiedlschuster, A. T. Fienberg, K. Filimonov, C. Finley, L. Fischer, D. Fox, A. Franckowiak, E. Friedman, A. Fritz, P. F??rst, T. K. 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Raissi, M. Rameez, K. Rawlin, I. C. Rea, A. Rehman, P. Reichherzer, R. Reimann, G. Renzi, E. Resconi, S. Reusch, W. Rhode, M. Richman, B. Riedel, E. J. Robert, S. Robertson, G. Roellinghoff, M. Rongen, C. Rott, T. Ruhe, D. Ryckbosch, D. Rysewyk Cantu, I. Safa, J. Saffer, S. E. Sanchez Herrera, A. Sandrock, M. Santander, S. Sarkar, K. Satalecka, M. Schaufel, S. Schindler, T. Schmidt, A. Schneider, J. Schneider, F. G. Schr??der, L. Schumacher, G. Schwefer, S. Sclafani, D. Seckel, S. Seunarine, A. Sharma, S. Shefali, M. Silva, B. Skrzypek, B. Smither, R. Snihur, J. Soedingrekso, D. Soldin, C. Spannfellner, G. M. Spiczak, C. Spiering, J. Stachurska, M. Stamatiko, T. Stanev, R. Stein, J. Stettner, A. Steuer, T. Stezelberger, T. St??rwald, T. Stuttard, G. W. Sullivan, I. Taboada, S. Ter-Antonyan, S. Tilav, F. Tischbein, K. Tollefson, C. T??nni, S. Toscano, D. Tosi, A. Trettin, M. Tselengidou, C. F. Tung, A. Turcati, R. Turcotte, C. F. Turley, J. P. Twagirayezu, B. Ty, M. A. Unland Elorrieta, N. Valtonen-Mattila, J. Vandenbroucke, N. van Eijndhoven, D. Vannerom, J. van Santen, S. Verpoest, C. Walck, T. B. Watson, C. Weaver, P. Weigel, A. Weindl, M. J. Wei, J. Weldert, C. Wendt, J. Werthebach, M. Weyrauch, N. Whitehorn, C. H. Wiebusch, D. R. William, M. Wolf, K. Woschnagg, G. Wrede, J. Wulff, X. W. Xu, J. P. Yanez, S. Yoshida, S. Yu, T. Yuan, Z. Zhang, P. Zhelnin, P. Abreu, M. Aglietta, J. M. Albury, I. Allekotte, K. Almeida Cheminant, A. Almela, J. Alvarez-Mu??iz, R. Alves Batista, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, P. R. Ara??jo Ferreira, E. Arnone, J. C. Arteaga Vel??zquez, H. Asorey, P. Assi, G. Avila, A. M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, G. Bhatta, P. L. Biermann, V. Binet, K. Bismark, T. Bister, J. Biteau, J. Blazek, C. Bleve, J. Bl??mer, M. Boh????ov??, D. Boncioli, C. Bonifazi, L. Bonneau Arbeletche, N. Borodai, A. M. Botti, J. Brack, T. Bretz, P. G. Brichetto Orchera, F. L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, M. B??sken, K. S. Caballero-Mora, L. Caccianiga, F. Canfora, I. Caraca, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, J. A. Chinellato, J. Chudoba, L. Chytka, R. W. Clay, A. C. Cobos Cerutti, R. Colalillo, A. Coleman, M. R. Coluccia, R. Concei????o, A. Condorelli, G. Consolati, F. Contrera, F. Convenga, D. Correia dos Santo, C. E. Covault, S. Dasso, K. Daumiller, B. R. Dawson, J. A. Day, R. M. de Almeida, J. de Jes??, S. J. de Jong, J. R. T. de Mello Neto, I. De Mitri, J. de Oliveira, D. de Oliveira Franco, F. de Palma, V. de Souza, E. De Vito, A. Del Popolo, M. del R??o, O. Deligny, L. Deval, A. di Matteo, M. Dobre, C. Dobrigkeit, J. C. D???Olivo, L. M. Domingues Mende, R. C. dos Anjo, M. T. Dova, J. Ebr, R. Engel, I. Epicoco, M. Erdmann, C. O. Escobar, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A. C. Fauth, N. Fazzini, F. Feldbusch, F. Fenu, B. Fick, J. M. Figueira, A. Filip??i??, T. Fitoussi, T. Fodran, T. Fujii, A. Fuster, C. Galea, C. Galelli, B. Garc??a, A. L. Garcia Vega, H. Gemmeke, F. Gesualdi, A. Gherghel-Lascu, P. L. Ghia, U. Giaccari, M. Giammarchi, J. Glombitza, F. Gobbi, F. Gollan, G. Golup, M. G??mez Berisso, P. F. G??mez Vitale, J. P. Gongora, J. M. Gonz??lez, N. Gonz??lez, I. Goo, D. G??ra, A. Gorgi, M. Gottowik, T. D. Grubb, F. Guarino, G. P. Guede, E. Guido, S. Hahn, P. Hamal, M. R. Hampel, P. Hansen, D. Harari, V. M. Harvey, T. Hebbeker, D. Heck, C. Hojvat, J. R. H??randel, P. Horvath, M. Hrabovsk??, T. Huege, A. Insolia, P. G. Isar, P. Janecek, J. A. Johnsen, J. Jurysek, A. K????p??, K. H. Kampert, N. Karastathi, B. Keilhauer, A. Khakurdikar, V. V. Kizakke Covilakam, H. O. Klage, M. Kleifge, J. Kleinfeller, F. Knapp, N. Kunka, B. L. Lago, R. G. Lang, N. Langner, M. A. Leigui de Oliveira, V. Lenok, A. Letessier-Selvon, I. Lhenry-Yvon, D. Lo Presti, L. Lope, R. L??pez, L. Lu, Q. Luce, J. P. Lundquist, A. Machado Payera, G. Mancarella, D. Mandat, B. C. Manning, J. Manshanden, P. Mantsch, S. Marafico, F. M. Mariani, A. G. Mariazzi, I. C. Mari??, G. Marsella, D. Martello, S. Martinelli, O. Mart??nez Bravo, M. Mastrodicasa, H. J. Mathe, J. Matthew, G. Matthiae, E. Mayotte, S. Mayotte, P. O. Mazur, G. Medina-Tanco, D. Melo, A. Menshikov, S. Michal, M. I. Micheletti, L. Miramonti, S. Mollerach, F. Montanet, L. Morejon, C. Morello, M. Mostaf??, A. L. M??ller, M. A. Muller, K. Mulrey, R. Mussa, M. Muzio, W. M. Namasaka, A. Nasr-Esfahani, L. Nellen, G. Nicora, M. Niculescu-Oglinzanu, M. Niechciol, D. Nitz, D. Nosek, V. Novotny, L. No??ka, A. Nucita, L. A. N????ez, C. Oliveira, M. Palatka, J. Pallotta, P. Papenbreer, G. Parente, A. Parra, J. Pawlowsky, M. Pech, J. P??kala, R. Pelayo, J. Pe??a-Rodriguez, E. E. Pereira Martin, J. Perez Armand, C. P??rez Bertolli, M. Perlin, L. Perrone, S. Petrera, C. Petrucci, T. Pierog, M. Pimenta, V. Pirronello, M. Platino, B. Pont, M. Pothast, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, J. Rautenberg, D. Ravignani, M. Reininghau, J. Ridky, F. Riehn, M. Risse, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M. J. Roncoroni, S. Rossoni, M. Roth, E. Roulet, A. C. Rovero, P. Ruehl, A. Saftoiu, M. Saharan, F. Salamida, H. Salazar, G. Salina, J. D. Sanabria Gomez, F. S??nchez, E. M. Santo, E. Santo, F. Sarazin, R. Sarmento, C. Sarmiento-Cano, R. Sato, P. Savina, C. M. Sch??fer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schl??ter, D. Schmidt, O. Scholten, H. Schoorlemmer, P. Schov??nek, J. Schulte, T. Schulz, S. J. Sciutto, M. Scornavacche, A. Segreto, S. Sehgal, R. C. Shellard, G. Sigl, G. Silli, O. Sima, R. Smau, R. ??m??da, P. Sommer, J. F. Soriano, R. Squartini, M. Stadelmaier, D. Stanca, S. Stani??, J. Stasielak, P. Stassi, A. Streich, M. Su??rez-Dur??n, T. Sudholz, T. Suomij??rvi, A. D. Supanitsky, Z. Szadkowski, A. Tapia, C. Taricco, C. Timmerman, O. Tkachenko, P. Tobiska, C. J. Todero Peixoto, B. Tom??, Z. Torr??, A. Travaini, P. Travnicek, C. Trimarelli, M. Tuero, R. Ulrich, M. Unger, L. Vaclavek, M. Vacula, J. F. Vald??s Galicia, L. Valore, E. Varela, A. V??squez-Ram??rez, D. Veberi??, C. Ventura, I. D. Vergara Quispe, V. Verzi, J. Vicha, J. Vink, S. Vorobiov, H. Wahlberg, C. Watanabe, A. A. Watson, L. Wiencke, H. Wilczy??ski, D. Wittkowski, B. Wundheiler, A. Yushkov, O. Zapparrata, E. Za, D. Zavrtanik, M. Zavrtanik, L. Zehrer, T. Abu-Zayyad, M. Allen, Y. Arai, R. Arimura, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, I. Buckland, R. Cady, B. G. Cheon, J. Chiba, M. Chikawa, K. Fujisue, K. Fujita, R. Fujiwara, M. Fukushima, R. Fukushima, G. Furlich, N. Globu, R. Gonzalez, W. Hanlon, M. Hayashi, N. Hayashida, H. He, K. Hibino, R. Higuchi, K. Honda, D. Ikeda, T. Inadomi, N. Inoue, T. Ishii, H. Ito, D. Ivanov, H. Iwakura, A. Iwasaki, H. M. Jeong, S. Jeong, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, S. Kasami, S. Kawakami, S. Kawana, K. Kawata, I. Kharuk, E. Kido, H. B. Kim, J. H. Kim, S. W. Kim, Y. Kimura, S. Kishigami, Y. Kubota, S. Kurisu, V. Kuzmin, M. Kuznetsov, Y. J. Kwon, K. H. Lee, B. Lubsandorzhiev, K. Machida, H. Matsumiya, T. Matsuyama, J. N. Matthew, R. Mayta, M. Minamino, K. Mukai, I. Myer, S. Nagataki, K. Nakai, R. Nakamura, T. Nakamura, Y. Nakamura, A. Nakazawa, E. Nishio, T. Nonaka, H. Oda, S. Ogio, M. Ohnishi, H. Ohoka, Y. Oku, T. Okuda, Y. Omura, M. Ono, R. Onogi, A. Oshima, S. Ozawa, I. H. Park, M. Pott, M. S. Pshirkov, J. Remington, D. C. Rodriguez, G. I. Rubtsov, D. Ryu, H. Sagawa, R. Sahara, Y. Saito, N. Sakaki, T. Sako, N. Sakurai, K. Sano, K. Sato, T. Seki, K. Sekino, P. D. Shah, Y. Shibasaki, F. Shibata, N. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, H. S. Shin, D. Shinto, J. D. Smith, P. Sokolsky, N. Sone, B. T. Stoke, T. A. Stroman, Y. Takagi, Y. Takahashi, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, Y. Tanoue, S. B. Thoma, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, R. Tsuda, Y. Tsunesada, Y. Uchihori, S. Udo, T. Uehama, F. Urban, D. Warren, T. Wong, M. Yamamoto, K. Yamazaki, K. Yashiro, F. Yoshida, Y. Yoshioka, Y. Zhezher, Z. Zundel, Centre Tecnològic de Vilanova i la Geltrú, Universitat Politècnica de Catalunya. LAB - Laboratori d'Aplicacions Bioacústiques, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire d'Informatique et Systèmes (LIS), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Géoazur (GEOAZUR 7329), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), IceCube, Pierre Auger, Telescope Array, Auger, ANTARES, ANR-18-IDEX-0001,Université de Paris,Université de Paris(2018), Albert, A., Alves, S., Andr??, M., Anghinolfi, M., A., M., Ardid, S., Aubert, J. -J., Aublin, J., Baret, B., Basa, S., Belhorma, B., Bendahman, M., Bertin, V., Biagi, S., Bissinger, M., Boumaaza, J., Bouta, M., Bouwhuis, M. C., Br??nza??, H., Bruijn, R., Brunner, J., Busto, J., Caiffi, B., Calvo, D., Capone, A., Caramete, L., Carr, J., Carretero, V., Celli, S., Chabab, M., Chau, T. N., Cherkaoui El Moursli, R., Chiarusi, T., Circella, M., Coleiro, A., Coniglione, R., Coyle, P., Creusot, A., D??az, A. F., Distefano, C., Di Palma, I., Domi, A., Donzaud, C., Dornic, D., Drouhin, D., Eberl, T., van Eeden, T., van Eijk, D., El Khayati, N., Enzenh??fer, A., Fermani, P., Ferrara, G., Filippini, F., Fusco, L., Gatelet, Y., Gay, P., Glotin, H., Gozzini, R., Gracia Ruiz, R., Graf, K., Guidi, C., Hallmann, S., van Haren, H., Heijboer, A. J., Hello, Y., Hern??ndez-Rey, J. J., H??ssl, J., Hofest??dt, J., Huang, F., Illuminati, G., James, C. W., Jisse-Jung, B., De Jong, M., de Jong, P., Kadler, M., Kalekin, O., Katz, U., Khan-Chowdhury, N. R., Kouchner, A., Kreykenbohm, I., Kulikovskiy, V., Lahmann, R., Le Breton, R., Lestum, S., Lef??vre, D., Leonora, E., Levi, G., Lopez-Coto, D., Loucatos, S., Maderer, L., Manczak, J., Marcelin, M., Margiotta, A., Marinelli, A., Mart??nez-Mora, J. A., Martino, B., Melis, K., Migliozzi, P., Moussa, A., Muller, R., Nauta, L., Navas, S., Nezri, E., Fearraigh, B. ??., P??un, A., P??v??la??, G. E., Pellegrino, C., Perrin-Terrin, M., Pestel, V., Piattelli, P., Pieterse, C., Poir??, C., Popa, V., Pradier, T., Randazzo, N., Real, D., Reck, S., Riccobene, G., Romanov, A., S??nchez-Losa, A., Salesa Greus, F., Samtleben, D. F. E., Sanguineti, M., Sapienza, P., Schnabel, J., Schumann, J., Sch??ssler, F., Seneca, J., Spurio, M., Stolarczyk, Th., Taiuti, M., Tayalati, Y., Tingay, S. J., Vallage, B., Van Elewyck, V., Versari, F., Viola, S., Vivolo, D., Wilms, J., Zavatarelli, S., Zegarelli, A., Zornoza, J. D., Z????iga, J., Abbasi, R., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Alameddine, J. M., Alispach, C., A. Alves Jr., A., Amin, N. M., Andeen, K., Anderson, T., Anton, G., Arg??elles, C., Ashida, Y., Axani, S., Bai, X., Balagopal V., A., Barbano, A., Barwick, S. W., Bastian, B., Basu, V., Baur, S., Bay, R., Beatty, J. J., Becker, K. -H., Becker Tjus, J., Bellenghi, C., Benzvi, S., Berley, D., Bernardini, E., Besson, D. Z., Binder, G., Bindig, D., Blaufuss, E., Blot, S., Boddenberg, M., Bontempo, F., Borowka, J., B??ser, S., Botner, O., B??ttcher, J., Bourbeau, E., Bradascio, F., Braun, J., Brinson, B., Bron, S., Brostean-Kaiser, J., Browne, S., Burgman, A., Burley, R. T., Busse, R. S., Campana, M. A., Carnie-Bronca, E. G., Chen, C., Chen, Z., Chirkin, D., Choi, K., Clark, B. A., Clark, K., Classen, L., Collin, G. H., Conrad, J. M., Coppin, P., Correa, P., Cowen, D. F., Cross, R., Dappen, C., Dave, P., De Clercq, C., Delaunay, J. J., Delgado L??pez, D., Dembinski, H., Deoskar, K., Desai, A., Desiati, P., de Vries, K. D., de Wasseige, G., de With, M., Deyoung, T., Diaz, A., D??az-V??lez, J. C., Dittmer, M., Dujmovic, H., Dunkman, M., Duvernois, M. A., Dvorak, E., Ehrhardt, T., Eller, P., Erpenbeck, H., Evans, J., Evenson, P. A., Fan, K. L., Fazely, A. R., Fedynitch, A., Feigl, N., Fiedlschuster, S., Fienberg, A. T., Filimonov, K., Finley, C., Fischer, L., Fox, D., Franckowiak, A., Friedman, E., Fritz, A., F??rst, P., Gaisser, T. K., Gallagher, J., Ganster, E., Garcia, A., Garrappa, S., Gerhardt, L., Ghadimi, A., Glaser, C., Glauch, T., Gl??senkamp, T., Gonzalez, J. G., Goswami, S., Grant, D., Gr??goire, T., Griswold, S., G??nther, C., Gutjahr, P., Haack, C., Hallgren, A., Halliday, R., Halve, L., Halzen, F., Ha Minh, M., Hanson, K., Hardin, J., Harnisch, A. A., Haungs, A., Hebecker, D., Helbing, K., Henningsen, F., Hettinger, E. C., Hickford, S., Hignight, J., Hill, C., Hill, G. C., Hoffman, K. D., Hoffmann, R., Hokanson-Fasig, B., Hoshina, K., Huber, M., Huber, T., Hultqvist, K., H??nnefeld, M., Hussain, R., Hymon, K., In, S., Iovine, N., Ishihara, A., Jansson, M., Japaridze, G. S., Jeong, M., Jin, M., Jones, B. J. P., Kang, D., Kang, W., Kang, X., Kappes, A., Kappesser, D., Kardum, L., Karg, T., Karl, M., Karle, A., Kauer, M., Kellermann, M., Kelley, J. L., Kheirandish, A., Kin, K., Kintscher, T., Kiryluk, J., Klein, S. R., Koirala, R., Kolanoski, H., Kontrimas, T., K??pke, L., Kopper, C., Kopper, S., Koskinen, D. J., Koundal, P., Kovacevich, M., Kowalski, M., Kozynets, T., Kun, E., Kurahashi, N., Lad, N., Lagunas Gualda, C., Lanfranchi, J. L., Larson, M. J., Lauber, F., Lazar, J. P., Lee, J. W., Leonard, K., Leszczy??ska, A., Li, Y., Lincetto, M., Liu, Q. R., Liubarska, M., Lohfink, E., Lozano Mariscal, C. J., Lucarelli, F., Ludwig, A., Luszczak, W., Lyu, Y., Ma, W. Y., Madsen, J., Mahn, K. B. M., Makino, Y., Mancina, S., Martinez-Soler, I., Maruyama, R., Mase, K., Mcelroy, T., Mcnally, F., Mead, J. V., Meagher, K., Mechbal, S., Medina, A., Meier, M., Meighen-Berger, S., Micallef, J., Mockler, D., Montaruli, T., Moore, R. W., Morse, R., Moulai, M., Naab, R., Nagai, R., Naumann, U., Necker, J., Nguy???n, L. V., Niederhausen, H., Nisa, M. U., Nowicki, S. C., Obertacke Pollmann, A., Oehler, M., Oeyen, B., Olivas, A., O???sullivan, E., Pandya, H., Pankova, D. V., Park, N., Parker, G. K., Paudel, E. N., Paul, L., P??rez de los Heros, C., Peters, L., Peterson, J., Philippen, S., Pieper, S., Pittermann, M., Pizzuto, A., Plum, M., Popovych, Y., Porcelli, A., Prado Rodriguez, M., Price, P. B., Pries, B., Przybylski, G. T., Raab, C., Rack-Helleis, J., Raissi, A., Rameez, M., Rawlins, K., Rea, I. C., Rehman, A., Reichherzer, P., Reimann, R., Renzi, G., Resconi, E., Reusch, S., Rhode, W., Richman, M., Riedel, B., Roberts, E. J., Robertson, S., Roellinghoff, G., Rongen, M., Rott, C., Ruhe, T., Ryckbosch, D., Rysewyk Cantu, D., Safa, I., Saffer, J., Sanchez Herrera, S. E., Sandrock, A., Santander, M., Sarkar, S., Satalecka, K., Schaufel, M., Schindler, S., Schmidt, T., Schneider, A., Schneider, J., Schr??der, F. G., Schumacher, L., Schwefer, G., Sclafani, S., Seckel, D., Seunarine, S., Sharma, A., Shefali, S., Silva, M., Skrzypek, B., Smithers, B., Snihur, R., Soedingrekso, J., Soldin, D., Spannfellner, C., Spiczak, G. M., Spiering, C., Stachurska, J., Stamatikos, M., Stanev, T., Stein, R., Stettner, J., Steuer, A., Stezelberger, T., St??rwald, T., Stuttard, T., Sullivan, G. W., Taboada, I., Ter-Antonyan, S., Tilav, S., Tischbein, F., Tollefson, K., T??nnis, C., Toscano, S., Tosi, D., Trettin, A., Tselengidou, M., Tung, C. F., Turcati, A., Turcotte, R., Turley, C. F., Twagirayezu, J. P., Ty, B., Unland Elorrieta, M. A., Valtonen-Mattila, N., Vandenbroucke, J., van Eijndhoven, N., Vannerom, D., van Santen, J., Verpoest, S., Walck, C., Watson, T. B., Weaver, C., Weigel, P., Weindl, A., Weiss, M. J., Weldert, J., Wendt, C., Werthebach, J., Weyrauch, M., Whitehorn, N., Wiebusch, C. H., Williams, D. R., Wolf, M., Woschnagg, K., Wrede, G., Wulff, J., Xu, X. W., Yanez, J. P., Yoshida, S., Yu, S., Yuan, T., Zhang, Z., Zhelnin, P., Abreu, P., Aglietta, M., Albury, J. M., Allekotte, I., Almeida Cheminant, K., Almela, A., Alvarez-Mu??iz, J., Alves Batista, R., Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Ara??jo Ferreira, P. R., Arnone, E., Arteaga Vel??zquez, J. C., Asorey, H., Assis, P., Avila, G., Badescu, A. M., Bakalova, A., Balaceanu, A., Barbato, F., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Bhatta, G., Biermann, P. L., Binet, V., Bismark, K., Bister, T., Biteau, J., Blazek, J., Bleve, C., Bl??mer, J., Boh????ov??, M., Boncioli, D., Bonifazi, C., Bonneau Arbeletche, L., Borodai, N., Botti, A. M., Brack, J., Bretz, T., Brichetto Orchera, P. G., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., B??sken, M., Caballero-Mora, K. S., Caccianiga, L., Canfora, F., Caracas, I., Caruso, R., Castellina, A., Catalani, F., Cataldi, G., Cazon, L., Cerda, M., Chinellato, J. A., Chudoba, J., Chytka, L., Clay, R. W., Cobos Cerutti, A. C., Colalillo, R., Coleman, A., Coluccia, M. R., Concei????o, R., Condorelli, A., Consolati, G., Contreras, F., Convenga, F., Correia dos Santos, D., Covault, C. E., Dasso, S., Daumiller, K., Dawson, B. R., Day, J. A., de Almeida, R. M., de Jes??s, J., de Jong, S. J., de Mello Neto, J. R. T., De Mitri, I., de Oliveira, J., de Oliveira Franco, D., de Palma, F., de Souza, V., De Vito, E., Del Popolo, A., del R??o, M., Deligny, O., Deval, L., di Matteo, A., Dobre, M., Dobrigkeit, C., D???olivo, J. C., Domingues Mendes, L. M., dos Anjos, R. C., Dova, M. T., Ebr, J., Engel, R., Epicoco, I., Erdmann, M., Escobar, C. O., Etchegoyen, A., Falcke, H., Farmer, J., Farrar, G., Fauth, A. C., Fazzini, N., Feldbusch, F., Fenu, F., Fick, B., Figueira, J. M., Filip??i??, A., Fitoussi, T., Fodran, T., Fujii, T., Fuster, A., Galea, C., Galelli, C., Garc??a, B., Garcia Vegas, A. L., Gemmeke, H., Gesualdi, F., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Glombitza, J., Gobbi, F., Gollan, F., Golup, G., G??mez Berisso, M., G??mez Vitale, P. F., Gongora, J. P., Gonz??lez, J. M., Gonz??lez, N., Goos, I., G??ra, D., Gorgi, A., Gottowik, M., Grubb, T. D., Guarino, F., Guedes, G. P., Guido, E., Hahn, S., Hamal, P., Hampel, M. R., Hansen, P., Harari, D., Harvey, V. M., Hebbeker, T., Heck, D., Hojvat, C., H??randel, J. R., Horvath, P., Hrabovsk??, M., Huege, T., Insolia, A., Isar, P. G., Janecek, P., Johnsen, J. A., Jurysek, J., K????p??, A., Kampert, K. H., Karastathis, N., Keilhauer, B., Khakurdikar, A., Kizakke Covilakam, V. V., Klages, H. O., Kleifges, M., Kleinfeller, J., Knapp, F., Kunka, N., Lago, B. L., Lang, R. G., Langner, N., Leigui de Oliveira, M. A., Lenok, V., Letessier-Selvon, A., Lhenry-Yvon, I., Lo Presti, D., Lopes, L., L??pez, R., Lu, L., Luce, Q., Lundquist, J. P., Machado Payeras, A., Mancarella, G., Mandat, D., Manning, B. C., Manshanden, J., Mantsch, P., Marafico, S., Mariani, F. M., Mariazzi, A. G., Mari??, I. C., Marsella, G., Martello, D., Martinelli, S., Mart??nez Bravo, O., Mastrodicasa, M., Mathes, H. J., Matthews, J., Matthiae, G., Mayotte, E., Mayotte, S., Mazur, P. O., Medina-Tanco, G., Melo, D., Menshikov, A., Michal, S., Micheletti, M. I., Miramonti, L., Mollerach, S., Montanet, F., Morejon, L., Morello, C., Mostaf??, M., M??ller, A. L., Muller, M. A., Mulrey, K., Mussa, R., Muzio, M., Namasaka, W. M., Nasr-Esfahani, A., Nellen, L., Nicora, G., Niculescu-Oglinzanu, M., Niechciol, M., Nitz, D., Nosek, D., Novotny, V., No??ka, L., Nucita, A., N????ez, L. A., Oliveira, C., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Pawlowsky, J., Pech, M., P??kala, J., Pelayo, R., Pe??a-Rodriguez, J., Pereira Martins, E. E., Perez Armand, J., P??rez Bertolli, C., Perlin, M., Perrone, L., Petrera, S., Petrucci, C., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Pont, B., Pothast, M., Privitera, P., Prouza, M., Puyleart, A., Querchfeld, S., Rautenberg, J., Ravignani, D., Reininghaus, M., Ridky, J., Riehn, F., Risse, M., Rizi, V., Rodrigues de Carvalho, W., Rodriguez Rojo, J., Roncoroni, M. J., Rossoni, S., Roth, M., Roulet, E., Rovero, A. C., Ruehl, P., Saftoiu, A., Saharan, M., Salamida, F., Salazar, H., Salina, G., Sanabria Gomez, J. D., S??nchez, F., Santos, E. M., Santos, E., Sarazin, F., Sarmento, R., Sarmiento-Cano, C., Sato, R., Savina, P., Sch??fer, C. M., Scherini, V., Schieler, H., Schimassek, M., Schimp, M., Schl??ter, F., Schmidt, D., Scholten, O., Schoorlemmer, H., Schov??nek, P., Schulte, J., Schulz, T., Sciutto, S. J., Scornavacche, M., Segreto, A., Sehgal, S., Shellard, R. C., Sigl, G., Silli, G., Sima, O., Smau, R., m??da, R., Sommers, P., Soriano, J. F., Squartini, R., Stadelmaier, M., Stanca, D., Stani??, S., Stasielak, J., Stassi, P., Streich, A., Su??rez-Dur??n, M., Sudholz, T., Suomij??rvi, T., Supanitsky, A. D., Szadkowski, Z., Tapia, A., Taricco, C., Timmermans, C., Tkachenko, O., Tobiska, P., Todero Peixoto, C. J., Tom??, B., Torr??s, Z., Travaini, A., Travnicek, P., Trimarelli, C., Tueros, M., Ulrich, R., Unger, M., Vaclavek, L., Vacula, M., Galicia, J. F. 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W., Kimura, Y., Kishigami, S., Kubota, Y., Kurisu, S., Kuzmin, V., Kuznetsov, M., Kwon, Y. J., Lee, K. H., Lubsandorzhiev, B., Machida, K., Matsumiya, H., Matsuyama, T., Matthews, J. N., Mayta, R., Minamino, M., Mukai, K., Myers, I., Nagataki, S., Nakai, K., Nakamura, R., Nakamura, T., Nakamura, Y., Nakazawa, A., Nishio, E., Nonaka, T., Oda, H., Ogio, S., Ohnishi, M., Ohoka, H., Oku, Y., Okuda, T., Omura, Y., Ono, M., Onogi, R., Oshima, A., Ozawa, S., Park, I. H., Potts, M., Pshirkov, M. S., Remington, J., Rodriguez, D. C., Rubtsov, G. I., Ryu, D., Sagawa, H., Sahara, R., Saito, Y., Sakaki, N., Sako, T., Sakurai, N., Sano, K., Sato, K., Seki, T., Sekino, K., Shah, P. D., Shibasaki, Y., Shibata, F., Shibata, N., Shibata, T., Shimodaira, H., Shin, B. K., Shin, H. S., Shinto, D., Smith, J. D., Sokolsky, P., Sone, N., Stokes, B. T., Stroman, T. A., Takagi, Y., Takahashi, Y., Takamura, M., Takeda, M., Takeishi, R., Taketa, A., Takita, M., Tameda, Y., Tanaka, H., Tanaka, K., Tanaka, M., Tanoue, Y., Thomas, S. B., Thomson, G. B., Tinyakov, P., Tkachev, I., Tokuno, H., Tomida, T., Troitsky, S., Tsuda, R., Tsunesada, Y., Uchihori, Y., Udo, S., Uehama, T., Urban, F., Warren, D., Wong, T., Yamamoto, M., Yamazaki, K., Yashiro, K., Yoshida, F., Yoshioka, Y., Zhezher, Y., and Zundel, Z.

Subjects
Astrofísica, interaction [cosmic radiation], POINT-LIKE, Neutrino astronomy, High energy astrophysics, Ultra-high-energy cosmic radiation, Astronomy, magnetic field, cosmic radiation: interaction, Astrophysics, neutrino: flux, Astronomical observatories, IceCube, Ultra-high-energy cosmic, Astronomi, astrofysik och kosmologi, 330, High-Energy Phenomena and Fundamental Physics, Astronomy, Astrophysics and Cosmology, High Energy Astrophysical Phenomena (astro-ph.HE), astro-ph.HE, Physics, OBSERVATÓRIOS, Astrophysics::Instrumentation and Methods for Astrophysics, neutrino: UHE, Auger, UHE [neutrino], ddc, observatory, statistics, Observatoris astronòmics, Astrophysics - High Energy Astrophysical Phenomena, FLUX, Astrophysics::High Energy Astrophysical Phenomena, UHE [cosmic radiation], FOS: Physical sciences, SURFACE DETECTOR, High energy astrophysic, ddc:530, ARRIVAL DIRECTIONS, High Energy Physics, Neutrins, cosmic radiation: UHE, Neutrinos, ANTARES, Telescopis, High Energy Physics::Phenomenology, Astronomy and Astrophysics, flux [neutrino], SCALE ANISOTROPY, Neutrino astrophysics, radiation, PATTERN, Physics and Astronomy, RESOLUTION, Space and Planetary Science, FISICA APLICADA, Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], correlation, Experimental High Energy Physics, ddc:520, ARRAY, High Energy Physics::Experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Neutrino astronomy, High energy astrophysics, Ultra-high-energy cosmic radiation, Telescopes
Abstract

For several decades, the origin of ultra-high-energy cosmic rays (UHECRs) has been an unsolved question of highenergy astrophysics. One approach for solving this puzzle is to correlate UHECRs with high-energy neutrinos, since neutrinos are a direct probe of hadronic interactions of cosmic rays and are not deflected by magnetic fields. In this paper, we present three different approaches for correlating the arrival directions of neutrinos with the arrival directions of UHECRs. The neutrino data are provided by the IceCube Neutrino Observatory and ANTARES, while the UHECR data with energies above ∼50 EeV are provided by the Pierre Auger Observatory and the Telescope Array. All experiments provide increased statistics and improved reconstructions with respect to our previous results reported in 2015. The first analysis uses a high-statistics neutrino sample optimized for pointsource searches to search for excesses of neutrino clustering in the vicinity of UHECR directions. The second analysis searches for an excess of UHECRs in the direction of the highest-energy neutrinos. The third analysis searches for an excess of pairs of UHECRs and highest-energy neutrinos on different angular scales. None of the analyses have found a significant excess, and previously reported overfluctuations are reduced in significance. Based on these results, we further constrain the neutrino flux spatially correlated with UHECRs., Centre National de la Recherche Scientifique (CNRS), Commissariat à l’énergie atomique et aux énergies alternatives (CEA), Commission Européenne (FEDER fund and Marie Curie Program), Institut Universitaire de France (IUF), LabEx UnivEarthS (ANR-10- LABX-0023 and ANR-18-IDEX-0001), Région Île-de-France (DIM-ACAV), Région Alsace (contrat CPER), Région Provence- Alpes-Côte d’Azur, Département du Var and Ville de La Seyne-sur-Mer, France, Bundesministerium für Bildung und Forschung (BMBF), Germany, Istituto Nazionale di Fisica Nucleare (INFN), Italy, Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO), the Netherlands, Council of the President of the Russian Federation for young scientists and leading scientific schools supporting grants, Russia, Executive Unit for Financing Higher Education, Research, Development and Innovation (UEFISCDI), Romania, Ministerio de Ciencia, Innovación, Investigación y Universidades (MCIU): Programa Estatal de Generación de Conocimiento (refs. PGC2018-096663-B-C41, -A-C42, -BC43, -B-C44) (MCIU/FEDER), Generalitat Valenciana: Prometeo (PROMETEO/2020/019), Grisolía (refs. GRISOLIA/ 2018/119, /2021/192) and GenT (refs. CIDEGENT/2018/ 034, /2019/043, /2020/049, /2021/023) programs, Junta de Andalucía (ref. A-FQM-053-UGR18), La Caixa Foundation (ref. LCF/BQ/IN17/11620019), EU: MSC program (ref. 101025085), Spain, Ministry of Higher Education, Scientific Research and Innovation, Morocco, and the Arab Fund for Economic and Social Development, Kuwait, U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, U.S. National Science Foundation-EPSCoR, Wisconsin Alumni Research Foundation, Center for High Throughput Computing (CHTC) at the University of Wisconsin−Madison, Open Science Grid (OSG), Extreme Science and Engineering Discovery Environment (XSEDE), Frontera computing project at the Texas Advanced Computing Center, U.S. Department of Energy−National Energy Research Scientific Computing Center, Particle astrophysics research computing center at the University of Maryland, Institute for Cyber-Enabled Research at Michigan State University, and Astroparticle physics computational facility at Marquette University, Belgium—Funds for Scientific Research (FRS-FNRS and FWO), FWO Odysseus and Big Science programmes, and Belgian Federal Science Policy Office (Belspo), Germany—Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Helmholtz Alliance for Astroparticle Physics (HAP), Initiative and Networking Fund of the Helmholtz Association, Deutsches Elektronen Synchrotron (DESY), and High Performance Computing cluster of the RWTH Aachen, Sweden—Swedish Research Council, Swedish Polar Research Secretariat, Swedish National Infrastructure for Computing (SNIC), and Knut and Alice Wallenberg Foundation, Australia—Australian Research Council, Canada— Natural Sciences and Engineering Research Council of Canada, Calcul Québec, Compute Ontario, Canada Foundation for Innovation, WestGrid, and Compute Canada, Denmark—Villum Fonden and Carlsberg Foundation, New Zealand—Marsden Fund, Japan—Japan Society for Promotion of Science (JSPS) and Institute for Global Prominent Research (IGPR) of Chiba University, Korea—National Research Foundation of Korea (NRF), Switzerland—Swiss National Science Foundation (SNSF), United Kingdom—Department of Physics, University of Oxford, Argentina—Comisión Nacional de Energía Atómica; Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Gobierno de la Provincia de Mendoza; Municipalidad de Malargüe; NDM Holdings and Valle Las Leñas; in gratitude for their continuing cooperation over land access; Australia—the Australian Research Council, Belgium—Fonds de la Recherche Scientifique (FNRS); Research Foundation Flanders (FWO), Brazil—Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ); São Paulo Research Foundation (FAPESP) Grants No. 2019/10151-2, No. 2010/07359-6 and No. 1999/ 05404-3; Ministério da Ciência, Tecnologia, Inovações e Comunicações (MCTIC), Czech Republic—Grant No. MSMT CR LTT18004, LM2015038, LM2018102, CZ.02.1.01/0.0/0.0/ 16_013/0001402, CZ.02.1.01/0.0/0.0/18_046/0016010, and CZ.02.1.01/0.0/0.0/17_049/0008422, France—Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS); Conseil Régional Ile-de-France; Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS); Département Sciences de l’Univers (SDU-INSU/CNRS); Institut Lagrange de Paris (ILP) Grant No. LABEX ANR-10-LABX-63 within the Investissements d’Avenir Programme Grant No. ANR-11-IDEX- 0004-02, Germany—Bundesministerium für Bildung und Forschung (BMBF); Deutsche Forschungsgemeinschaft (DFG); Finanzministerium Baden-Württemberg; Helmholtz Alliance for Astroparticle Physics (HAP); Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF); Ministerium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen; Ministerium für Wissenschaft, Forschung und Kunst des Landes Baden-Württemberg, Italy—Istituto Nazionale di Fisica Nucleare (INFN); Istituto Nazionale di Astrofisica (INAF); Ministero dell’Istruzione, dell’Universitá e della Ricerca (MIUR); CETEMPS Center of Excellence; Ministero degli Affari Esteri (MAE), México—Consejo Nacional de Ciencia y Tecnología (CONACYT) No. 167733; Universidad Nacional Autónoma de México (UNAM), PAPIIT DGAPA-UNAM, The Netherlands— Ministry of Education, Culture and Science; Netherlands Organisation for Scientific Research (NWO); Dutch national e-infrastructure with the support of SURF Cooperative, Poland —Ministry of Education and Science, grant No. DIR/WK/ 2018/11, National Science Centre, Grants No. 2016/22/M/ ST9/00198, 2016/23/B/ST9/01635, and 2020/39/B/ST9/ 01398, Portugal—Portuguese national funds and FEDER funds within Programa Operacional Factores de Competitividade through Fundação para a Ciência e a Tecnologia (COMPETE), Romania—Ministry of Research, Innovation and Digitization, CNCS/CCCDI—UEFISCDI, projects PN19150201/16N/ 2019, PN1906010, TE128 and PED289, within PNCDI III, Slovenia—Slovenian Research Agency, grants P1-0031, P1- 0385, I0-0033, N1-0111, Spain—Ministerio de Economía, Industria y Competitividad (FPA2017-85114-P and PID2019- 104676GB-C32), Xunta de Galicia (ED431C 2017/07), Junta de Andalucía (SOMM17/6104/UGR, P18-FR-4314) Feder Funds, RENATA Red Nacional Temática de Astropartículas (FPA2015-68783-REDT) and María de Maeztu Unit of Excellence (MDM-2016-0692), USA—Department of Energy, Contracts No. DE-AC02-07CH11359, No. DE-FR02-04ER41 300, No. DE-FG02-99ER41107, and No. DE-SC0011689; National Science Foundation, Grant No. 0450696; The Grainger Foundation; Marie Curie-IRSES/EPLANET; European Particle Physics Latin American Network; and UNESCO., Japan Society for the Promotion of Science (JSPS) through Grants-in- Aid for Priority Area 431, for Specially Promoted Research JP21000002, for Scientific Research (S) JP19104006, for Specially Promoted Research JP15H05693, for Scientific Research (S) JP15H05741, for Science Research (A) JP18H03705, for Young Scientists (A) JPH26707011, and for Fostering Joint International Research (B) JP19KK0074, by the joint research program of the Institute for Cosmic Ray Research (ICRR), The University of Tokyo; by the Pioneering Program of RIKEN for the Evolution of Matter in the Universe (r-EMU), U.S. National Science Foundation awards PHY-1404495, PHY-1404502, PHY-1607727, PHY-1712517, PHY-1806797, PHY-2012934, and PHY-2112904, National Research Foundation of Korea (2017K1A4A3015188, 2020R1A2C1 008230, and 2020R1A2C2102800), Ministry of Science and Higher Education of the Russian Federation under the contract 075-15-2020-778, IISN project No. 4.4501.18, Belgian Science Policy under IUAP VII/37 (ULB)

Published
2022

32. Anisotropy studies around the galactic centre at EeV energies with the Auger Observatory

Author

K. Daumiller, J. Sorokin, D. Gonzalez, Miroslav Pech, Marcio Aparecido Muller, Catherine Newman-Holmes, F. Suarez, D. Garcia-Pinto, A. Zepeda, A. Letessier-Selvon, H. O. Klages, Hernán Asorey, W. Slater, M. Zavrtanik, A. Zech, G. Miele, M. Ave, R. M. de Almeida, S. Maltezos, R. Meyhandan, M. D. Healy, K. Arisaka, L. Prado, I. Lhenry-Yvon, Francesc Ferrer, Andreas Kopmann, R. Mussa, X. Garrido, Jc Bacelar, E. Moreno, L. Perrone, A. Gorgi, O. Deligny, M. Gonçalves do Amaral, E. M. Santos, Helio Nogima, F. Arneodo, Mohsen Harakeh, D. R. Claes, D. Maurizio, N. Kunka, H. Glass, Jan Kuijpers, C. Di Giulio, I. C. Maris, Enrique Zas, E. Kemp, T. Beau, José Eduardo Martinez, Xavier Bertou, D. Torresi, B. R. Becker, Petr Schovanek, Bruce R. Dawson, Tim Huege, C. J. Todero Peixoto, C. H. Wiebusch, Jaime Alvarez-Muñiz, S. Westerhoff, Jörg R. Hörandel, T. Bergmann, B. Wilczynska, M. T. Dova, L. Nožka, T. Vo Van, F. Schüssler, C. Timmermans, L. A. de Carvalho, J. N. Capdevielle, J. Chye, A. Della Selva, C. Grunfeld, V. Tunnicliffe, J. Gitto, R. R. McNeil, A. Chou, L. Nellen, R. Piegaia, L. Villasenor, T. McCauley, Carola Dobrigkeit, A. Cordier, C. Bonifazi, H. Blümer, A. Lopez Agüera, S. Ostapchenko, T. Dang Quang, I. Valiño, A. Insolia, M. E. Mancenido, Milena Horvat, M. Kleifges, Esteban Roulet, C. Grupen, Andrej Filipcic, J. Knapp, Warner A. Miller, C. Aramo, Henrique M. J. Barbosa, Alan Watson, E. Armengaud, R. Gómez Herrero, R. A. Vázquez, R. Engel, Gualberto Avila, Ingomar Allekotte, M. Patel, H. Spinka, Heiko Geenen, G. Rodriguez, Dariusz Gora, E. J. Quel, A. Tripathi, S. Kuhlman, M. Barkhausen, S. B. Clay, R. Fonte, B. E. Smith, G. Mancarella, A. D. Supanitsky, Corinne Berat, M. Giller, C. Morello, R. Ticona, W. Tkaczyk, M. C. Medina, J. Rodríguez Martino, T. Yamamoto, T. Venters, J. Pallotta, J. Matthews, A. Ewers, V. Van Elewyck, O. Blanch-Bigas, Angela V. Olinto, A. Etchegoyen, E. Strazzeri, J. Kleinfeller, B. Garcia, C. Bleve, Oleg Kalashev, Luis A. Anchordoqui, C. Hojvat, J. C. Hamilton, P. D. J. Clark, A. C. Fauth, Carlos Escobar, M. A. L. de Oliveira, Marco Aglietta, P. Bernardini, D. Lebrun, V. Verzi, I. De Mitri, F. Montanet, Jose Chinellato, A. Haungs, S. Maldera, B. Revenu, C. Robledo, P. Gouffon, O. Pisanti, K.-H. Becker, O. Tascau, A. Grillo, D. D'Urso, M. Zha, Vincenzo Rizi, P. Younk, Y. Petrov, Giuseppe Longo, C. Alvarez, R. Cester, Jose A. Bellido, L. F. A. Oliveira, L. del Peral, D. V. Camin, F. Sanchez, D. Allard, A. Horneffer, Dusan Mandat, J. Aublin, L. Cazon, J. A. J. Matthews, C. Aguirre, P. Allison, Silvia Mollerach, R. Bonino, J. W. Cronin, J.R. Rodriguez Rojo, J. Rosado, Antonio Velarde, T. Pierog, J. C. D'Olivo, A. Menshikov, E. Fokitis, D. Rodríguez Frías, E. Parizot, J. M. Brunet, M. Ortiz, D. Warner, G. Sigl, Petr Travnicek, R. W. Clay, A. Fernandez, B. Fick, T. Paul, Alejandro Luis Veiga, T. Asch, J. Brack, T. Schmidt, H. Dembinski, M. A. DuVernois, A. Kusenko, N. Martinez, G. Medina, T. Nguyen Thi, A. Geranios, T. Bäcker, M. Kaducak, Fabian Gobbi, D. Semikoz, G. Wieczorek, J. F. Valdés Galicia, Karl-Heinz Kampert, Antonella Castellina, B. Keilhauer, N. Fazzini, A. Tonachini, H. C. Reis, M. Ambrosio, R. C. Shellard, H. J. Mathes, S. Reucroft, D. Harari, Matthias Leuthold, A. G. Mariazzi, C. Morris, G. Cataldi, S. Parlati, Francisco J. Blanco, H. Wahlberg, Bei Cai, G. Sequeiros, C. Roucelle, Darko Veberic, S. Coutu, A. M. van den Berg, Daniel Omar Badagnani, Luis N. Epele, Heino Falcke, M. Urban, J. Pouryamout, Lawrence Wiencke, G. Parente, D. Heck, P. Skelton, M. Gonzalez, R. Knapik, F. Arqueros, H. Schieler, J. Lee, M. Prouza, A. Smialkowski, Y. Kolotaev, N. Smetniansky De Grande, Bruno L. Lago, G. Navarra, N. G. Busca, V. M. Olmos-Gilbaja, C. Meurer, M. Tueros, W. J. M. de Mello, P. Darriulat, P. Bauleo, D. Fazio, J. G. Gonzalez, S. Harmsma, C. Rivière, A. Tamburro, M. Monasor, V. Scherini, Diego Melo, Segev BenZvi, Mario Scuderi, A. Dorofeev, J. Xu, M. Roth, R. Nichol, Gregory R Snow, P. Sommers, E. Menichetti, G. Matthiae, Corbin Covault, F. Gomez Albarracin, T. Suomijärvi, P. Blasi, P. Privitera, J. Gutiérrez, S. Robbins, A. Filevich, D. Pham Ngoc, R. Pelayo, J. Rautenberg, M. Iarlori, P. L. Ghia, Subir Sarkar, M. Boratav, P. Mantsch, M. Boháčová, U. Cotti, S. Hartmann, J. C. Diaz, R. Ulrich, J. Beatty, D. Martello, Juan Pablo Gongora, Martin Erdmann, J. Swain, M. Risse, German Ros, N. Nierstenhöfer, W. Fulgione, M. Hrabovský, D. Tscherniakhovski, R. Lopez, J. Pȩkala, J. R. T. de Mello Neto, A. Stutz, P. L. Biermann, Rossella Caruso, O. Martinez, S. J. Sciutto, M. I. Micheletti, G. Gelmini, P. Buchholz, P. O. Mazur, J. L. Harton, Piotr Homola, Marcos Santander, P. Facal San Luis, D. Zavrtanik, C. Wileman, D. Fuhrmann, J. Oehlschläger, O. Krömer, Z. Szadkowski, M. Ziolkowski, Beatriz B. Siffert, S. Petrera, J. Řídký, F. Guarino, D. Newton, T. Waldenmaier, G. P. Guedes, M. Malek, Radomir Smida, C. Delle Fratte, F. Salamida, B. Morales, T. N. Pham Thi, M. G. Winnick, G. Tristram, J. D. Hague, P. LeBrun, H. Wilczynski, P. Walker, P. Boghrat, L. Valore, D. Barnhill, M. Roberts, V. Grassi, A. Chiavassa, G. Salina, D. Nosek, G. Maurin, M. Gómez Berisso, O. Wainberg, T. A. Porter, A. Risi, C. Lachaud, R. Sato, B. Connolly, D. Monnier Ragaigne, J. Abraham, P. Billoir, A. Lucero, A. Meli, L. Garrard, S. L. C. Barroso, M. Videla, Thomas Hebbeker, B. S. Atulugama, M. Unger, J. C. Anjos, K. S. Caballero-Mora, Olaf Scholten, Humberto Ibarguen Salazar, S. Dagoret-Campagne, D. Nitz, D. Dornic, J. Chauvin, S. De Jong, C. De Donato, Miguel Mostafa, T. Ohnuki, P. Petrinca, M. McEwen, V. de Souza, S. Vorobiov, H. Gemmeke, A. F. Barbosa, M. Palatka, I. M. Pepe, A. C. Rovero, M. Gold, A. Tamashiro, K. Payet, L. Otero, I. Fleck, B. Rouillé-d'Orfeuil, P. Sokolsky, D. H. Koang, L. Voyvodic, G. A. Medina Tanco, S. Ferry, J., Abraham, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, P., Allison, C., Alvarez, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, J. C., Anjo, C., Aramo, K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, B. S., Atulugama, J., Aublin, M., Ave, G., Avila, J., Bacelar, T., Backer, D., Badagnani, A. F., Barbosa, H. M. J., Barbosa, M., Barkhausen, D., Barnhill, S. L. C., Barroso, P., Bauleo, J., Beatty, T., Beau, B. R., Becker, K. H., Becker, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, Bernardini, Paolo, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, P., Blasi, Bleve, Carla, H., Blumer, P., Boghrat, M., Bohacova, C., Bonifazi, R., Bonino, M., Boratav, J., Brack, J. M., Brunet, P., Buchholz, N. G., Busca, K. S., Caballero Mora, B., Cai, D. V., Camin, J. N., Capdevielle, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chye, D., Clae, P. D. J., Clark, R. W., Clay, S. B., Clay, B., Connolly, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, J., Cronin, S., Dagoret Campagne, T., Dang Quang, P., Darriulat, K., Daumiller, B. R., Dawson, R. M., de Almeida, L. A., de Carvalho, C., De Donato, S. J., de Jong, W. J. M. de Mello J., R., J. R. T., de Mello Neto, DE MITRI, Ivan, M. A. L., de Oliveira, V., de Souza, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, C., Dobrigkeit, J. C., D’Olivo, D., Dornic, A., Dorofeev, M. T., Dova, D., D’Urso, M. A., Duvernoi, R., Engel, L., Epele, M., Erdmann, C. O., Escobar, A., Etchegoyen, A., Ewer, P., Facal San Lui, H., Falcke, A. C., Fauth, D., Fazio, N., Fazzini, A., Fernandez, F., Ferrer, S., Ferry, B., Fick, A., Filevich, A., Filipcic, I., Fleck, E., Fokiti, R., Fonte, D., Fuhrmann, W., Fulgione, B., Garcia, D., Garcia Pinto, L., Garrard, X., Garrido, H., Geenen, G., Gelmini, H., Gemmeke, A., Geranio, P. L., Ghia, M., Giller, J., Gitto, H., Gla, F., Gobbi, M. S., Gold, F., Gomez Albarracin, M., Gomez Berisso, R., Gomez Herrero, M., Goncalves do Amaral, J. P., Gongora, D., Gonzalez, J. G., Gonzalez, M., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, V., Grassi, A., Grillo, C., Grunfeld, C., Grupen, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, M. N., Harakeh, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, M. D., Healy, T., Hebbeker, D., Heck, C., Hojvat, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, M., Iarlori, A., Insolia, M., Kaducak, O., Kalashev, K. H., Kampert, B., Keilhauer, E., Kemp, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, Y., Kolotaev, A., Kopmann, O., Kromer, S., Kuhlman, J., Kuijper, N., Kunka, A., Kusenko, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, G., Longo, R., Lopez, A., Lopez Aguera, A., Lucero, S., Maldera, M., Malek, S., Maltezo, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. G., Mariazzi, I. C., Mari, Martello, Daniele, N., Martinez, J., Martinez, O., Martinez, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, G., Maurin, D., Maurizio, P. O., Mazur, T., Mccauley, M., Mcewen, R. R., Mcneil, G., Medina, M. C., Medina, G., Medina Tanco, A., Meli, D., Melo, E., Menichetti, A., Menshikov, Meurer, C. h. r., R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, C., Morri, M., Mostafa', M. A., Muller, R., Mussa, G., Navarra, L., Nellen, C., Newman Holme, D., Newton, T., Nguyen Thi, R., Nichol, N., Nierstenhofer, D., Nitz, H., Nogima, D., Nosek, L., Nozka, J., Oehlschlager, T., Ohnuki, A., Olinto, L. F. A., Oliveira, V. M., Olmos Gilbaja, M., Ortiz, S., Ostapchenko, L., Otero, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, M., Patel, T., Paul, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, D., Pham Ngoc, T. N., Pham Thi, R., Piegaia, T., Pierog, O., Pisanti, T. A., Porter, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, H. C., Rei, S., Reucroft, B., Revenu, J., Ridky, A., Risi, M., Risse, C., Riviere, V., Rizi, S., Robbin, M., Robert, C., Robledo, G., Rodriguez, D., Rodriguez Fria, J., Rodriguez Martino, J., Rodriguez Rojo, G., Ro, J., Rosado, M., Roth, C., Roucelle, B., Rouille' d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, E. M., Santo, S., Sarkar, R., Sato, V., Scherini, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, D., Semikoz, G., Sequeiro, R. C., Shellard, B. B., Siffert, G., Sigl, P., Skelton, W., Slater, N., Smetniansky De Grande, A., Smialkowski, R., Smida, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, O., Tascau, R., Ticona, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, A., Tonachini, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, V., van Elewyck, R. A., Vazquez, D., Veberic, A., Veiga, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, T., Vo Van, S., Vorobiov, L., Voyvodic, H., Wahlberg, O., Wainberg, T., Waldenmaier, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, J., Xu, T., Yamamoto, P., Younk, E., Za, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Zha, M., Ziolkowski, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), APC - Cosmologie, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, APC - THEORIE, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Guarino, Fausto, Longo, Giuseppe, Aramo, Carla, DELLA SELVA, Angelo, Miele, Gennaro, Pisanti, Ofelia, Valore, Laura, D'Urso, Domenico, Auger, Collaboration, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik

Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astronomy, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, FOS: Physical sciences, Osservatorio Pierre Auger, Flux, Cosmic ray, Astrophysics, 01 natural sciences, Auger, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Raggi cosmici, Observatory, 0103 physical sciences, Anisotropies, Centro galattico, Galactic centre, Cosmic rays, 010303 astronomy & astrophysics, Ciencias Exactas, media_common, Pierre Auger Observatory, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Anisotropie, centro galáctico, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Física, Astronomy and Astrophysics, Radiación cósmica, Anisotropía, Galaxy, Sky, Experimental High Energy Physics
Abstract

Data from the Pierre Auger Observatory are analyzed to search for anisotropies near the direction of the Galactic Centre at EeV energies. The exposure of the surface array in this part of the sky is already significantly larger than that of the fore-runner experiments. Our results do not support previous findings of localized excesses in the AGASA and SUGAR data. We set an upper bound on a point-like flux of cosmic rays arriving from the Galactic Centre which excludes several scenarios predicting sources of EeV neutrons from Sagittarius $A$. Also the events detected simultaneously by the surface and fluorescence detectors (the `hybrid' data set), which have better pointing accuracy but are less numerous than those of the surface array alone, do not show any significant localized excess from this direction., Comment: Matches published version

Published
2007

33. Upper limit on the diffuse flux of ultrahigh energy tau neutrinos from the Pierre Auger Observatory

Author

M. Ambrosio, Onofrio A. Catalano, V. Tunnicliffe, X. Garrido, R. Ticona, J. R. T. de Mello Neto, G. Hebrero, M. Hussain, T. Pinto, B. Wundheiler, Esteban Roulet, D. Allard, Gregory R Snow, D. D'Urso, Corinne Berat, M. Giller, B. Revenu, R. Fonte, J. D. Swain, A. Gorgi, Fabian Schmidt, Mariangela Settimo, K. H. Kampert, T. Suomijärvi, A. F. Barbosa, L. Perrone, M. G. Winnick, Marcos Santander, H. Blümer, E. J. Quel, I. Valiño, E. Parizot, C. E. Santo, W. Tkaczyk, C. Rivière, D. Harari, Matthias Leuthold, Paul Sommers, P. Gouffon, M. Videla, A. Insolia, M. Kleifges, D. Zavrtanik, C. Morello, G. Matthiae, A. Segreto, M. Ave, M. Zavrtanik, N. Nierstenhoefer, Piotr Homola, J. Takahashi, M. Kaducak, Pedro Brogueira, A. K. Tripathi, T. Hauschildt, J. D. Hague, G. Parente, L. Caramete, M. Monasor, J. F. Valdés Galicia, D. Thomas, W. Fulgione, Antonio Bueno, Sergio Pastor, Dong Pham Ngoc, Radomir Smida, Markus Roth, R. E. Burton, R. Gómez Herrero, E. M. Santos, A. Smialkowski, M. Horvat, K. Arisaka, C. Delle Fratte, E. Armengaud, M. Prouza, H. M. Spinka, O. Krömer, Bruce R. Dawson, P.O. Mazur, Ivor Fleck, Gualberto Avila, Fabrizio Ortolani, Peter L. Biermann, Paolo Privitera, P. Abreu, H. R. Marquez Falcon, D. Newton, Hernan Wahlberg, M. A. Leigui de Oliveira, R. Tcaciuc, A. Meli, G. Rodriguez, A. Anzalone, J. C. dos Anjos, V. de Souza, P. Bauleo, L. Nožka, Petr Schovanek, M. Boratav, D. Dornic, Michael DuVernois, H. Gemmeke, K.-H. Becker, M. Pimenta, P. Clark, G. P. Guedes, R. Luna García, Matias Tueros, M. Unger, H. Dembinski, D. Garcia-Pinto, Federico Suarez, Ofelia Pisanti, Angela V. Olinto, M. Gold, O. Blanch-Bigas, S. Riggi, L. del Peral, B. L. Lago, M. Platino, D. Rodríguez Frías, Dusan Mandat, V. M. Olmos-Gilbaja, C. Aguirre, A. Tamburro, Markus Risse, U. Cotti, P. Facal San Luis, M. Gómez Berisso, Francisco J. Blanco, Nicolás G. Busca, M. I. Micheletti, J. Kleinfeller, F. Gomez Albarracin, B. S. Atulugama, I. Allekotte, D. H. Koang, Jose Chinellato, J. Pochon, R. C. Shellard, Jörg R. Hörandel, A. F. Grillo, Juan Carlos D'Olivo, T. Bergmann, T. Pierog, V. Scherini, Maria-Teresa Dova, F. Sánchez, Martina Bohacova, F. Salamida, Vasiliki Pavlidou, W. J. M. de Mello Junior, P. Bernardini, I. Demitri, Dariusz Gora, A. Pichel, Arnulfo Zepeda, Iván Sidelnik, D. Maurizio, R. M. Kieckhafer, Juan Moreno, Paulo J. S. Gonçalves, Patrick Allison, A. Krieger, S. Dagoret-Campagne, P. L. Ghia, Rúben Conceição, J. Rautenberg, A. C. Rovero, D. Barnhill, Bei Cai, Michael Urban, J. Chauvin, O. Wainberg, Stefano Argiro, Lukas Nellen, Y. Guardincerri, H. Schieler, A. Menschikov, Beatriz B. Siffert, I. Lhenry-Yvon, S. Parlati, J. Rodriguez Martino, Catherine Newman-Holmes, M. Roberts, Thomas McCauley, W. C. Brown, Pierre Sokolsky, C. Bleve, J. Abraham, M. González, Antonella Castellina, B. García, Mario Scuderi, Antonio Velarde, Gennaro Miele, S. Navas, M. E. Mancenido, Graciela B. Gelmini, J. Lozano Bahilo, Segev BenZvi, C. J. Todero Peixoto, Warner A. Miller, B. Tome, P. Lebrun, R. López, R. A. Vázquez, I. Rodriguez-Cabo, Heino Falcke, Karen S. Caballero-Mora, Carla Aramo, François Montanet, B. Wilczynska, Corbin Covault, Y. Petrov, J. Sorokin, Vincenzo Rizi, Johanna A. Pallotta, Daniel Kuempel, Carlos Escobar, D. Martello, A. Chou, M. C. Maccarone, D. Melo, A. Creusot, M. Ziolkowski, G. Wieczorek, Marco Iarlori, T. Schmidt, Silvia Mollerach, T. N. Pham Thi, M.E. Ortiz, V. Van Elewyck, Martin Erdmann, M. Palatka, Günter Sigl, A. Letessier-Selvon, O. Martínez Bravo, B. E. Smith, N. Pacheco, F. Sarazin, D. Pakk Selmi-Dei, S. Reucroft, R. Sato, C. Meurer, J. Gutiérrez, O. Taşcǎu, S. Petrera, P. Walker, Roger W Clay, A. Criss, A. Cordier, S. Maldera, B. Connolly, Daniel Omar Badagnani, P. Younk, L. Valore, Lorenzo Cazon, E. Kemp, Serguei Vorobiov, S. Coutu, J. L. Navarro, Daniel Gonzalez, Ralf Ulrich, Andrej Filipcic, A. Tamashiro, D. Monnier Ragaigne, S. Harmsma, Ioana Codrina Maris, S. Ostapchenko, E. Colombo, J. C. Diaz, D. Warner, R. Squartini, B. Rouillé-d'Orfeuil, T. Paul, M. C. Medina, R. Mussa, J. J. Beatty, Subir Sarkar, E. Menichetti, J. Coppens, D. Torresi, N. Fazzini, B. R. Becker, G. Medina-Tanco, Diep Pham Ngoc, Tonia M. Venters, A. Zech, E. Strazzeri, Julien Aublin, C. Hojvat, V. Grassi, Alexander Kusenko, D. Tscherniakhovski, German Ros, Ralph Engel, M. Patel, R. Piegaia, H. Wilczyński, J. Ridky, H.O. Klages, Tristan Beau, A. Stutz, Heiko Geenen, D. García Gámez, L. Otero, Gaetano Salina, Miroslav Pech, A.M. van den Berg, Darko Veberič, Olivier Deligny, N. Smetniansky De Grande, R. Bonino, M. S. Sutherland, Rossella Caruso, T. Asch, H. J. Mathes, T. Huege, Hernán Gonzalo Asorey, G. La Rosa, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, G. De La Vega, Francesc Ferrer, Sofia Andringa, C. De Donato, Miguel Mostafa, G. Navarra, F. Schüssler, S. L.C. Barroso, T. Yamamoto, Brian Fick, T. Bäcker, R. M. de Almeida, J. Rodriguez Rojo, Wagner Carvalho, J. G. Gonzalez, J. Knapp, A. Lopez Agüera, A. Redondo, D.V. Semikoz, Enrique Zas, Kai Daumiller, Alberto Filevich, A. Dorofeev, F. Arneodo, Peter Hansen, Rodrigo Pelayo, C. Di Giulio, Fernando Contreras, F. Guarino, John Matthews, Peter Buchholz, Luis N. Epele, S. Westerhoff, T. Nguyen Thi, C. Lachaud, H. Glass, Pasquale Blasi, Marco Aglietta, L. Villaseñor, C. Macolino, J. Oehlschläger, F. Arqueros, I. Torres, C. Wileman, P. Necesal, Thomas Hebbeker, Carola Dobrigkeit, T. Ohnuki, V. Pirronello, Iuri Muniz Pepe, Alan Watson, A. Schmidt, V. C. Holmes, K. Payet, M. Mcewen, D. Lebrun, I. Dutan, Miroslav Hrabovský, S. Ferry, A. Haungs, J. L. Harton, A. Della Selva, C. Grunfeld, D. Heck, P. Mantsch, F. A. S. Rezende, Alejandro Luis Veiga, Z. Szadkowski, Jean Christophe Hamilton, C. E. Fracchiolla, G. Farrar, R. R. McNeil, A. Tonachini, M. Gonçalves do Amaral, Charles Timmermans, D. Nosek, Marcio Aparecido Muller, G. Golup, V. Verzi, N. Kunka, G. Tristram, D. V. Camin, Luis A. Anchordoqui, M. D. Healy, Petr Travnicek, A. Italiano, J. Chye, J. W. Cronin, A. G. Mariazzi, C. Robledo, José Eduardo Martinez, J. A.J. Matthews, Xavier Bertou, R. Knapik, Pedro Assis, A. Etchegoyen, Javier Tiffenberg, S. J. De Jong, Pierre Billoir, A. Curutiu, J. Pȩkala, A. G. K. Smith, T. Karova, A. Horneffer, P. Petrinca, Balázs Kégl, A. D. Supanitsky, F. Ionita, L. Voyvodic, A. C. Fauth, Carla Bonifazi, Jose A. Bellido, Jaime Rosado, R. Cester, B. Morales, Christopher Morris, Jaime Alvarez-Muñiz, H. Wu, G. Mancarella, B. Keilhauer, J. Allen, S. J. Sciutto, D. Nitz, A. Chiavassa, John K. Lee, L. R. Wiencke, R. Meyhandan, G. Cataldi, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, J., Abraham, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, P., Allison, C., Alvarez, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, J. C., Anjo, C., Aramo, K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, B. S., Atulugama, J., Aublin, M., Ave, G., Avila, J., Bacelar, T., Backer, D., Badagnani, A. F., Barbosa, H. M. J., Barbosa, M., Barkhausen, D., Barnhill, S. L. C., Barroso, P., Bauleo, J., Beatty, T., Beau, B. R., Becker, K. H., Becker, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, Bernardini, Paolo, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, P., Blasi, C., Bleve, H., Blumer, P., Boghrat, M., Bohacova, C., Bonifazi, R., Bonino, M., Boratav, J., Brack, J. M., Brunet, P., Buchholz, N. G., Busca, K. S., Caballero Mora, B., Cai, D. V., Camin, J. N., Capdevielle, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chye, D., Clae, P. D. J., Clark, R. W., Clay, S. B., Clay, B., Connolly, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, J., Cronin, S., Dagoret Campagne, T., Dang Quang, P., Darriulat, K., Daumiller, B. R., Dawson, R. M., de Almeida, L. A., de Carvalho, C., De Donato, S. J., de Jong, W. J. M. de Mello J., R., J. R. T., de Mello Neto, DE MITRI, Ivan, M. A. L., de Oliveira, V., de Souza, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, C., Dobrigkeit, J. C., D’Olivo, D., Dornic, A., Dorofeev, M. T., Dova, D., D’Urso, M. A., Duvernoi, R., Engel, L., Epele, M., Erdmann, C. O., Escobar, A., Etchegoyen, A., Ewer, P., Facal San Lui, H., Falcke, A. C., Fauth, D., Fazio, N., Fazzini, A., Fernandez, F., Ferrer, S., Ferry, B., Fick, A., Filevich, A., Filipcic, I., Fleck, E., Fokiti, R., Fonte, D., Fuhrmann, W., Fulgione, B., Garcia, D., Garcia Pinto, L., Garrard, X., Garrido, H., Geenen, G., Gelmini, H., Gemmeke, A., Geranio, P. L., Ghia, M., Giller, J., Gitto, H., Gla, F., Gobbi, M. S., Gold, F., Gomez Albarracin, M., Gomez Berisso, R., Gomez Herrero, M., Goncalves do Amaral, J. P., Gongora, D., Gonzalez, J. G., Gonzalez, M., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, V., Grassi, A., Grillo, C., Grunfeld, C., Grupen, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, M. N., Harakeh, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, M. D., Healy, T., Hebbeker, D., Heck, C., Hojvat, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, M., Iarlori, A., Insolia, M., Kaducak, O., Kalashev, K. H., Kampert, B., Keilhauer, E., Kemp, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, Y., Kolotaev, A., Kopmann, O., Kromer, S., Kuhlman, J., Kuijper, N., Kunka, A., Kusenko, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, G., Longo, R., Lopez, A., Lopez Aguera, A., Lucero, S., Maldera, M., Malek, S., Maltezo, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. G., Mariazzi, I. C., Mari, Martello, Daniele, N., Martinez, J., Martinez, O., Martinez, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, G., Maurin, D., Maurizio, P. O., Mazur, T., Mccauley, M., Mcewen, R. R., Mcneil, G., Medina, M. C., Medina, G., Medina Tanco, A., Meli, D., Melo, E., Menichetti, A., Menshikov, Meurer, C. h. r., R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, C., Morri, M., Mostafa', M. A., Muller, R., Mussa, G., Navarra, L., Nellen, C., Newman Holme, D., Newton, T., Nguyen Thi, R., Nichol, N., Nierstenhofer, D., Nitz, H., Nogima, D., Nosek, L., Nozka, J., Oehlschlager, T., Ohnuki, A., Olinto, L. F. A., Oliveira, V. M., Olmos Gilbaja, M., Ortiz, S., Ostapchenko, L., Otero, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, M., Patel, T., Paul, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, D., Pham Ngoc, T. N., Pham Thi, R., Piegaia, T., Pierog, O., Pisanti, T. A., Porter, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, H. C., Rei, S., Reucroft, B., Revenu, J., Ridky, A., Risi, M., Risse, C., Riviere, V., Rizi, S., Robbin, M., Robert, C., Robledo, G., Rodriguez, D., Rodriguez Fria, J., Rodriguez Martino, J., Rodriguez Rojo, G., Ro, J., Rosado, M., Roth, C., Roucelle, B., Rouille' d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, E. M., Santo, S., Sarkar, R., Sato, V., Scherini, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, D., Semikoz, G., Sequeiro, M., Settimo, R. C., Shellard, B. B., Siffert, G., Sigl, P., Skelton, W., Slater, N., Smetniansky De Grande, A., Smialkowski, R., Smida, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, O., Tascau, R., Ticona, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, A., Tonachini, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, V., van Elewyck, R. A., Vazquez, D., Veberic, A., Veiga, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, T., Vo Van, S., Vorobiov, L., Voyvodic, H., Wahlberg, O., Wainberg, T., Waldenmaier, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, J., Xu, T., Yamamoto, P., Younk, E., Za, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Zha, M., Ziolkowski, Guarino, Fausto, D'Urso, Domenico, Aramo, Carla, DELLA SELVA, Angelo, Miele, Gennaro, Pisanti, Ofelia, Valore, Laura, Auger, Collaboration, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), APC - Cosmologie, APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik

Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], FLUORESCENCE DETECTOR, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, Osservatorio Pierre Auger, Cosmic ray, 7. Clean energy, 01 natural sciences, Nuclear physics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], PACS: 95.55.Vj, 95.85.Ry, 98.70.Sa, Pion, Raggi cosmici, muon, SEARCH, 0103 physical sciences, Neutrino, EARTH, Partículas Elementales, Electromagnetismo, 010306 general physics, Cosmic rays, Charged current, Ciencias Exactas, Pierre Auger Observatory, Physics, AIR-SHOWERS, Range (particle radiation), Muon, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, pion, and other elementary particles, Física, DETETORES, cosmic ray detectors, Energia ultra alta, Radiación cósmica, COSMIC-RAYS, and other elementary particle detectors, 13. Climate action, High Energy Physics::Experiment, Sciami atmosferici estesi, Lepton
Abstract

The surface detector array of the Pierre Auger Observatory is sensitive to Earth-skimming tau neutrinos that interact in Earth’s crust. Tau leptons from ντ charged-current interactions can emerge and decay in the atmosphere to produce a nearly horizontal shower with a significant electromagnetic component. The data collected between 1 January 2004 and 31 August 2007 are used to place an upper limit on the diffuse flux of ντ at EeV energies. Assuming an E−2ν differential energy spectrum the limit set at 90% C.L. is E2νdNντdEν, La lista completa de autores puede verse en el archivo asociado., Facultad de Ciencias Exactas

Published
2008

34. Observation of the suppression of the flux of cosmic rays above 4x10^19eV

Author

M. Ambrosio, Onofrio A. Catalano, V. Tunnicliffe, M. Prouza, A. Haungs, T. Bergmann, P. Abreu, D. Newton, J. L. Harton, J. D. Swain, M. G. Winnick, Y. Guardincerri, Dariusz Gora, W. Fulgione, Marcos Santander, T. Pinto, P. Mantsch, F. A. S. Rezende, Alejandro Luis Veiga, B. Wundheiler, Z. Szadkowski, A. Insolia, M. Kleifges, D. Zavrtanik, B. Tome, Gregory R Snow, P. H. Kasper, J. Chye, Fabian Schmidt, Miroslav Hrabovsky, J. W. Cronin, J. F. Valdés Galicia, I. De Mitri, C. Hojvat, M. A. Leigui de Oliveira, R. Tcaciuc, F. Schroeder, H. Gemmeke, D. V. Camin, J. C. dos Anjos, Luis A. Anchordoqui, Michael DuVernois, Mariangela Settimo, D. Garcia-Pinto, M. Unger, V. Grassi, M. Platino, M. C. Maccarone, T. Asch, Luis N. Epele, M. D. Healy, D. Melo, Vasiliki Pavlidou, R. M. Kieckhafer, Juan Moreno, N. G. Busca, K. H. Kampert, J. Rautenberg, O. Wainberg, Stefano Argiro, Catherine Newman-Holmes, O. Kroemer, W. C. Brown, Gennaro Miele, Maria-Teresa Dova, C. E. Santo, Markus Roth, Jose Chinellato, R. M. de Almeida, D. Pakk Selmi-Dei, Petr Travnicek, I. Torres, R. Sato, H.O. Klages, Francisco J. Blanco, X. Garrido, A. Italiano, N. Nierstenhoefer, S. Schulte, G. Rodriguez, Paul Sommers, B. Connolly, F. Gomez Albarracin, V. Scherini, D. V. Semikoz, A. Horneffer, P. Petrinca, O. Blanch-Bigas, G. Parente, A. G. Mariazzi, C. Robledo, F. Arneodo, Rodrigo Pelayo, S. Westerhoff, J. Kleinfeller, Antonio Velarde, José Eduardo Martinez, B. L. Lago, C. Aguirre, T. Tarutina, V. Tuci, Balázs Kégl, J. A.J. Matthews, Xavier Bertou, R. Knapik, P. Gouffon, P. N. Dong, C. Macolino, T. Hauschildt, L. Villaseñor, J. Chauvin, P. Walker, L. Valore, Piotr Homola, A. Schmidt, B. M. Baughman, H. R. Marquez Falcon, J. R. T. de Mello Neto, H. J. Mathes, P. Facal San Luis, A. Segreto, A. C. Rovero, Pierre Sokolsky, C. Bleve, D. Nitz, G. Hebrero, A. Gorgi, D. Allard, M. Gómez Berisso, Bei Cai, R. C. Shellard, J. D. Hague, A. D. Supanitsky, F. Ionita, E. Armengaud, L. Voyvodic, Thomas Hebbeker, Pedro Assis, A. Etchegoyen, G. De La Vega, A. Letessier-Selvon, A. Chiavassa, Hernan Wahlberg, Lorenzo Cazon, John K. Lee, D. García Gámez, Daniel Kuempel, Carlos Escobar, A. Chou, Graciela B. Gelmini, Miroslav Pech, S. J. De Jong, D. Thomas, Javier Tiffenberg, L. R. Wiencke, Pierre Billoir, J. Abraham, C. J. Todero Peixoto, D. Maurizio, J. Lozano Bahilo, Segev BenZvi, J. Rodriguez Rojo, A. Curutiu, Colas Rivière, J. Pekala, M. Palatka, Günter Sigl, B. Revenu, Carla Aramo, B. E. Smith, I. Zaw, A. Cordier, S. Maldera, Carola Dobrigkeit, Enrique Zas, T. Ohnuki, I. Rodriguez-Cabo, Jun Takahashi, V. Pirronello, V. C. Holmes, Vincenzo Rizi, D. Martello, A. Dorofeev, M. S. Sutherland, H. M. Spinka, P. Brogueira, P. Wahrlich, Corbin Covault, Y. Petrov, M. Iarlori, D. Lebrun, V. M. Olmos-Gilbaja, F. Salamida, C. Di Giulio, Iuri Muniz Pepe, Fernando Contreras, I. Dutan, A. G. K. Smith, M. Ziolkowski, Geraldina Golup, Alexander Grillo, Alan Watson, T. Karova, O. Martínez Bravo, M. Mcewen, A. Filipcic, Pham Ngoc Diep, Dusan Mandat, Matthias Leuthold, Francesc Ferrer, Sofia Andringa, N. T. Thao, A. Tamburro, G. Matthiae, I. Allekotte, A. K. Tripathi, van den Ad M Berg, Radomir Smida, Christopher Morris, D. Warner, M. D. Rodríguez-Frías, Jaime Alvarez-Muñiz, C. Lachaud, G. Salina, Heino Falcke, J. Gutiérrez, Olivier Deligny, Antonio Bueno, Sergio Pastor, B. García, Mario Scuderi, A. C. Fauth, M. I. Micheletti, Wagner Carvalho, A. Redondo, J. Knapp, C. Delle Fratte, A. Lopez Agüera, Alberto Filevich, P. Lebrun, R. López, Karen S. Caballero-Mora, D. Heck, B. S. Atulugama, Peter Hansen, Kai Daumiller, Carla Bonifazi, F. Guarino, A. Smialkowski, Jörg R. Hörandel, E. Kemp, Serguei Vorobiov, A. Tamashiro, G. Wieczorek, Gualberto Avila, T. Schmidt, Jose A. Bellido, Peter Buchholz, P. Bauleo, H. Wu, G. Mancarella, B. Keilhauer, Arnulfo Zepeda, A. Ferrero, D. Monnier Ragaigne, Jaime Rosado, J. Allen, H. Glass, S. Reucroft, S. Dagoret-Campagne, Marco Aglietta, S. J. Sciutto, R. Cester, R. Pesce, Angela V. Olinto, C. Meurer, R. Meyhandan, O. Tascau, T. Huege, Hernán Gonzalo Asorey, B. Morales, A. Anzalone, A. F. Barbosa, M. Ave, P. Bernardini, Rúben Conceição, A. Menschikov, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, A. Pichel, Beatriz B. Siffert, J. Pallotta, Marcio Aparecido Muller, E. J. Quel, H. Schieler, B. Rouillé-d'Orfeuil, Ioana Codrina Maris, Antonella Castellina, V. de Souza, R. E. Burton, I. Valiño, S. Parlati, Charles Timmermans, Roger W Clay, K. Payet, Darko Veberič, B. R. Becker, R. Mussa, J. J. Beatty, P. Younk, Silvia Mollerach, N. Smetniansky De Grande, Martina Bohacova, J. Coppens, Patrick Allison, N. Fazzini, C. De Donato, K.-H. Becker, M. Pimenta, Miguel Mostafa, P. T. Nhung, E. Strazzeri, P. Clark, N. Kunka, G. Tristram, B. Wilczynska, J. Sorokin, M. Zavrtanik, R. Luna García, G. Navarra, M. Monasor, Julien Aublin, H. Dembinski, Federico Suarez, Ofelia Pisanti, Ralph Engel, T. Yamamoto, Brian Fick, J. Oehlschlaeger, D. H. Koang, J. Ridky, M. Roberts, Thomas McCauley, K. Arisaka, R. Bonino, S. Navas, M. E. Mancenido, A. Criss, M. Patel, Maria Giller, Tristan Beau, Heiko Geenen, R. A. Vázquez, A. Stutz, Petr Schovanek, Rossella Caruso, A. Lucero, G. La Rosa, J. L. Navarro, V. Van Elewyck, G. P. Guedes, F. Sarazin, S. Petrera, Daniel Gonzalez, J. C. Diaz, P. Blasi, Libor Nozka, L. Perrone, Jiri Chudoba, Paulo J. S. Gonçalves, L. Nellen, M.E. Ortiz, M. Hussain, Juan Carlos D'Olivo, T. Pierog, T. Bäcker, C. Morello, Ralf Ulrich, V. Halenka, S. Ostapchenko, F. Arqueros, P. L. Ghia, C. Wileman, P. Necesal, M. Gonzalez, D. Barnhill, S. L. C. Barroso, Michael Urban, R. Piegaia, Fabrizio Ortolani, Peter L. Biermann, Paolo Privitera, S. Coutu, E. Colombo, F. Schuessler, Subir Sarkar, Alexander Kusenko, D. Tscherniakhovski, H. Blu Mer, German Ros, M. Videla, D. Nosek, François Montanet, L. Caramete, T. Suomijaervi, Ivor Fleck, Matias Tueros, M. Gold, J. Pochon, L. Otero, Markus Risse, U. Cotti, F. Sánchez, V. Verzi, Iván Sidelnik, N. Pacheco, A. Krieger, I. Lhenry-Yvon, A. Della Selva, C. Grunfeld, Warner A. Miller, D. Dornic, Diego Harari, E. M. Santos, C. E. Fracchiolla, G. Farrar, R. R. McNeil, Bruce R. Dawson, P.O. Mazur, R. Ticona, J. C. Hamilton, A. Tonachini, Esteban Roulet, M. Gonçalves do Amaral, D. D'Urso, Corinne Berat, J. G. Gonzalez, E. Parizot, R. Squartini, T. Paul, W. Tkaczyk, M. C. Medina, A. Creusot, E. Menichetti, J. Matthews, G. Medina-Tanco, M. Kaducak, L. del Peral, W. J. M. de Mello Junior, J. Rodriguez Martino, Daniel Omar Badagnani, Tonia M. Venters, S. Riggi, S. Harmsma, H. Wilczyński, G. Cataldi, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), APC - Cosmologie, APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, Guarino, Fausto, D'Urso, Domenico, M., Ambrosio, Aramo, Carla, DELLA SELVA, Angelo, Miele, Gennaro, Pisanti, Ofelia, Valore, Laura, J., Abraham, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, P., Allison, C., Alvarez, J., Alvarez Muniz, L., Anchordoqui, J. C., Anjo, C., Aramo, K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, B. S., Atulugama, J., Aublin, M., Ave, G., Avila, J., Bacelar, T., Backer, D., Badagnani, A. F., Barbosa, H. M. J., Barbosa, M., Barkhausen, D., Barnhill, S. L. C., Barroso, P., Bauleo, J., Beatty, T., Beau, B. R., Becker, K. H., Becker, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, Bernardini, Paolo, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, P., Blasi, C., Bleve, H., Blumer, P., Boghrat, M., Bohacova, C., Bonifazi, R., Bonino, M., Boratav, J., Brack, J. M., Brunet, P., Buchholz, N. G., Busca, K. S., Caballero Mora, B., Cai, D. V., Camin, J. N., Capdevielle, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chye, D., Clae, P. D. J., Clark, R. W., Clay, S. B., Clay, B., Connolly, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, J., Cronin, S., Dagoret Campagne, T., Dang Quang, P., Darriulat, K., Daumiller, B. R., Dawson, R. M., de Almeida, L. A., de Carvalho, C., De Donato, S. J., de Jong, W. J. M. de Mello J., R., J. R. T., de Mello Neto, DE MITRI, Ivan, M. A. L., de Oliveira, V., de Souza, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, C., Dobrigkeit, J. C., D’Olivo, D., Dornic, A., Dorofeev, M. T., Dova, D., D’Urso, M. A., Duvernoi, R., Engel, L., Epele, M., Erdmann, C. O., Escobar, A., Etchegoyen, A., Ewer, P., Facal San Lui, H., Falcke, A. C., Fauth, D., Fazio, N., Fazzini, A., Fernandez, F., Ferrer, S., Ferry, B., Fick, A., Filevich, A., Filipcic, I., Fleck, E., Fokiti, R., Fonte, D., Fuhrmann, W., Fulgione, B., Garcia, D., Garcia Pinto, L., Garrard, X., Garrido, H., Geenen, G., Gelmini, H., Gemmeke, A., Geranio, P. L., Ghia, M., Giller, J., Gitto, H., Gla, F., Gobbi, M. S., Gold, F., Gomez Albarracin, M., Gomez Berisso, R., Gomez Herrero, M., Goncalves do Amaral, J. P., Gongora, D., Gonzalez, J. G., Gonzalez, M., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, V., Grassi, A., Grillo, C., Grunfeld, C., Grupen, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, M. N., Harakeh, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, M. D., Healy, T., Hebbeker, D., Heck, C., Hojvat, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, M., Iarlori, A., Insolia, M., Kaducak, O., Kalashev, K. H., Kampert, B., Keilhauer, E., Kemp, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, Y., Kolotaev, A., Kopmann, O., Kromer, S., Kuhlman, J., Kuijper, N., Kunka, A., Kusenko, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, G., Longo, R., Lopez, A., Lopez Aguera, A., Lucero, S., Maldera, M., Malek, S., Maltezo, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. G., Mariazzi, I. C., Mari, Martello, Daniele, N., Martinez, J., Martinez, O., Martinez, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, G., Maurin, D., Maurizio, P. O., Mazur, T., Mccauley, M., Mcewen, R. R., Mcneil, G., Medina, M. C., Medina, G., Medina Tanco, A., Meli, D., Melo, E., Menichetti, A., Menshikov, Meurer, C. h. r., R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, C., Morri, M., Mostafa', M. A., Muller, R., Mussa, G., Navarra, L., Nellen, C., Newman Holme, D., Newton, T., Nguyen Thi, R., Nichol, N., Nierstenhofer, D., Nitz, H., Nogima, D., Nosek, L., Nozka, J., Oehlschlager, T., Ohnuki, A., Olinto, L. F. A., Oliveira, V. M., Olmos Gilbaja, M., Ortiz, S., Ostapchenko, L., Otero, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, M., Patel, T., Paul, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, D., Pham Ngoc, T. N., Pham Thi, R., Piegaia, T., Pierog, O., Pisanti, T. A., Porter, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, H. C., Rei, S., Reucroft, B., Revenu, J., Ridky, A., Risi, M., Risse, C., Riviere, V., Rizi, S., Robbin, M., Robert, C., Robledo, G., Rodriguez, D., Rodriguez Fria, J., Rodriguez Martino, J., Rodriguez Rojo, G., Ro, J., Rosado, M., Roth, C., Roucelle, B., Rouille' d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, E. M., Santo, S., Sarkar, R., Sato, V., Scherini, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, D., Semikoz, G., Sequeiro, M., Settimo, R. C., Shellard, B. B., Siffert, G., Sigl, P., Skelton, W., Slater, N., Smetniansky De Grande, A., Smialkowski, R., Smida, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, O., Tascau, R., Ticona, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, A., Tonachini, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, V., van Elewyck, R. A., Vazquez, D., Veberic, A., Veiga, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, T., Vo Van, S., Vorobiov, L., Voyvodic, H., Wahlberg, O., Wainberg, T., Waldenmaier, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, J., Xu, T., Yamamoto, P., Younk, E., Za, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Zha, M., Ziolkowski, KVI - Center for Advanced Radiation Technology, and Research unit Astroparticle Physics

Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, energy spectrum, FOS: Physical sciences, General Physics and Astronomy, Flux, Osservatorio Pierre Auger, spectral index, Cosmic ray, particle flux, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, EXTENSIVE AIR-SHOWERS, UPPER LIMIT, 01 natural sciences, Power law, Auger, Nuclear physics, ENERGY, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Raggi cosmici, cosmic rays, 0103 physical sciences, ddc:550, Particle flux, 010303 astronomy & astrophysics, Ciencias Exactas, Physics, Pierre Auger Observatory, Spectral index, SPECTRUM, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, Física, Energia ultra alta, ARRAY, High Energy Physics::Experiment, Sciami atmosferici estesi, Energy (signal processing)
Abstract

The energy spectrum of cosmic rays above 2.5 × 10¹⁸ eV, derived from 20,000 events recorded at the Pierre Auger Observatory, is described. The spectral index γ of the particle flux, J ∝ E-γ, at energies between 4 × 10¹⁸ eV and 4 × 10¹⁹ eV is 2.69 ± 0.02(stat) ± 0.06(syst), steepening to 4.2 ± 0.4(stat) ± 0.06(syst) at higher energies. The hypothesis of a single power law is rejected with a significance greater than 6 standard deviations. The data are consistent with the prediction by Greisen and by Zatsepin and Kuz'min., La lista completa de autores que integran el documento puede consultarse en el archivo., Facultad de Ciencias Exactas, Instituto de Física La Plata

Published
2008

35. An upper limit to the photon fraction in cosmic rays above 10^19 eV from the Pierre Auger Observatory

Author

S. Petrera, C. Roucelle, B. Morales, T. N. Pham Thi, A. Lucero, S. Dagoret-Campagne, P. Boghrat, M. G. Winnick, C. Morello, M. Iarlori, A. Chiavassa, O. Pisanti, O. Blanch-Bigas, P. Bauleo, M. Roberts, Dariusz Gora, M. A. Muller, D. Barnhill, R. Knapik, C. O. Escobar, R. Gómez Herrero, M. Patel, S. B. Clay, J. Hoerandel, T. Waldenmaier, R. Nichol, Gregory R Snow, O. Deligny, G. Rodriguez, I. M. Pepe, A. C. Rovero, M. Gold, M. E. Mancenido, G. Mancarella, D. Gonzalez, S. Hartmann, A. Tamashiro, L. Valore, M. Monasor, L. Otero, S. Vorobiov, R. M. de Almeida, R. A. Vázquez, J. C. Hamilton, L. del Peral, D. Zavrtanik, G. Sequeiros, J. W. Cronin, G. Wieczorek, G. Matthiae, P. Sokolsky, V. Van Elewyck, D. H. Koang, A. D. Supanitsky, F. Suarez, J. Swain, P. Privitera, H. J. Mathes, M. Malek, W. Slater, Mario Scuderi, P. D. J. Clark, Radomir Smida, A. Castellina, Carla Aramo, M. Barkhausen, A. Zech, G. Miele, Bruce Becker, Dusan Mandat, C. Delle Fratte, F. Guarino, Vincenzo Rizi, I. De Mitri, S. J. Sciutto, R. Sato, M. Horvat, C. Hojvat, U. Cotti, T. McCauley, M. Ave, Alejandro Luis Veiga, M. Ziolkowski, Silvia Mollerach, B. Keilhauer, L. Anchordoqui, P. Buchholz, M. A. L. de Oliveira, D. Warner, H. C. Reis, S. Ostapchenko, S. Robbins, I. Lhenry-Yvon, B. Connolly, D. Monnier Ragaigne, D. Veberic, N. Kunka, H. Gemmeke, S. Maldera, D. Pham Ngoc, D. Semikoz, R. Pelayo, F. Arneodo, B. Wilczynska, M. Hrabovsky, E. Strazzeri, C. Wiebusch, M. A. DuVernois, A. Kusenko, G. Tristram, Jan Pękala, N. Fazzini, Andreas Kopmann, D. Tscherniakhovski, P. Blasi, J. Abraham, J. R. T. de Mello Neto, S. Maltezos, J. Beatty, Daniel Omar Badagnani, D. Martello, X. Garrido, E. Fokitis, M.E. Ortiz, G. Navarra, Peter L. Biermann, S. Parlati, D. Maurizio, A. Filipcic, M. Urban, G. Gelmini, Lawrence Wiencke, Fabian Gobbi, Juan Pablo Gongora, Y. Kolotaev, E. Menichetti, M. McEwen, H. O. Klages, H. Bluemer, A. C. Fauth, F. Sanchez, C. Aguirre, S. Reucroft, O. Taşcău, J. D. Hague, D. R. Claes, P. LeBrun, L. A. de Carvalho, A. F. Barbosa, J. Pouryamout, G. Parente, T. Asch, R. C. Shellard, P. Petrinca, M. Gonçalves do Amaral, M. Gómez Berisso, L. Voyvodic, Mohsen Harakeh, J. C. Anjos, P. Allison, Luis N. Epele, J. L. Harton, E. Armengaud, M. Leuthold, R. Ulrich, H. Wilczynski, Piotr Homola, P. Facal San Luis, A. F. Grillo, T. A. Porter, K. H. Becker, C. J. Todero Peixoto, Bruno L. Lago, G. Salina, J. Rodríguez Martino, T. Yamamoto, Heino Falcke, M. Kaducak, A. Tonachini, O. Wainberg, T. Hebbeker, D. Allard, A. Horneffer, I. Fleck, A. Lopez Agüera, Colas Rivière, V. M. Olmos-Gilbaja, D. Garcia-Pinto, Bei Cai, P. Walker, T. Venters, J. F. Valdés Galicia, A. Cordier, M. Boratav, E. Moreno, L. Perrone, M. Bohacova, D. V. Camin, Jaime Alvarez-Muñiz, François Montanet, M. Zha, Z. Szadkowski, C. Alvarez, Diego Melo, Segev BenZvi, I. C. Maris, A. Menshikov, G. A. Medina Tanco, R. W. Clay, S. Harmsma, J. Brack, H. Dembinski, M. Unger, D. Rodríguez Frías, T. Suomijaervi, J. Kleinfeller, D. Harari, I. Allekotte, H. Spinka, J. Aublin, K. Daumiller, J. Lee, K. Payet, B. Rouillé-d'Orfeuil, E. Kemp, T. Bergmann, Corbin Covault, V. Tunnicliffe, Francisco J. Blanco, P. Sommers, N. Smetniansky De Grande, R. Meyhandan, V. Grassi, A. Risi, A. G. Mariazzi, R. Bonino, J. Chauvin, N. G. Busca, F. Gomez Albarracin, F. Schuessler, T. Beau, Gualberto Avila, H. Nogima, P. Skelton, A. Letessier-Selvon, A. Tripathi, S. Kuhlman, H. Wahlberg, T. Paul, Jan Kuijpers, C. Bonifazi, O. Kroemer, Marco Aglietta, B. Revenu, J. Knapp, M. Roth, M. Ambrosio, C. Meurer, J. Ridky, J. Gutiérrez, P. Darriulat, F. Salamida, Angela V. Olinto, M. Palatka, O. Martinez, A. Gorgi, M. Prouza, K. H. Kampert, I. Valiño, A. Insolia, P. Bernardini, D. Fazio, J. G. Gonzalez, A. Stutz, R. Fonte, D. Torresi, B. E. Smith, A. Tamburro, A. Etchegoyen, J. A. Chinellato, Henrique M. J. Barbosa, R. Lopez, Miroslav Pech, A. Smialkowski, M. T. Dova, M. I. Micheletti, P. O. Mazur, A. Dorofeev, Marcos Santander, J. Oehlschlaeger, C. Wileman, N. Nierstenhoefer, R. Ticona, Rossella Caruso, H. Geenen, T. Vo Van, G. Sigl, M. C. Medina, P. Billoir, C. Dobrigkeit, V. Verzi, H. Glass, J. Chye, D. Fuhrmann, Beatriz B. Siffert, Albano C. Meli, B. Garcia, C. Bleve, J. Pallotta, E. Parizot, A. Della Selva, K. Arisaka, M. Risse, Antonio Velarde, C. Grunfeld, J. Matthews, J. C. D'Olivo, Oleg Kalashev, van den Ad M Berg, C. Lachaud, Francesc Ferrer, A. Chou, L. Nellen, D. Heck, D. Newton, V. Scherini, S. Ferry, C. Grupen, D. Lebrun, J. Bacelar, Jose A. Bellido, W. J. M. de Mello, J. Rodriguez Rojo, S. Westerhoff, M. D. Healy, D. Nosek, Petr Schovanek, L. Cazon, V. de Souza, C. Di Giulio, Enrique Zas, Jaime Rosado, G. P. Guedes, D. Dornic, Libor Nozka, A. Filevich, M. Zavrtanik, L. Villasenor, P. Mantsch, J. Rautenberg, D. D'Urso, J. C. Diaz, Y. Petrov, W. Fulgione, E. J. Quel, T. Nguyen Thi, G. Cataldi, M. Gonzalez, F. Arqueros, Torsten Schmidt, J. Gitto, L. Garrard, S. L. C. Barroso, R. R. McNeil, T. Dang Quang, Warner A. Miller, C. Robledo, P. Gouffon, M. Videla, B. S. Atulugama, Alan Watson, J. M. Brunet, Hernán Gonzalo Asorey, G. Maurin, Olaf Scholten, Humberto Ibarguen Salazar, D. Nitz, S. De Jong, G. Longo, C. De Donato, T. Ohnuki, K. S. Caballero-Mora, J. Sorokin, S. Coutu, R. Engel, Catherine Newman-Holmes, M. Tueros, A. Zepeda, T. Baecker, Subir Sarkar, German Ros, P. Younk, Petr Travnicek, M. Mostafa, José Eduardo Martinez, Xavier Bertou, C. Timmermans, J. N. Capdevielle, R. Mussa, W. Tkaczyk, L. F. A. Oliveira, N. Martinez, G. Medina, A. Geranios, R. Piegaia, M. Kleifges, Esteban Roulet, R. Cester, Corinne Berat, M. Giller, A. Ewers, L. Prado, E. M. Santos, Bruce R. Dawson, T. Pierog, J. A. J. Matthews, A. Fernandez, B. Fick, P. L. Ghia, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), University of Chicago, Laboratoire de l'Accélérateur Linéaire (LAL), APC - Cosmologie, APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, J., Abraham, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, P., Allison, C., Alvarez, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, J. C., Anjo, C., Aramo, K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, B. S., Atulugama, J., Aublin, M., Ave, G., Avila, J., Bacelar, T., Backer, D., Badagnani, A. F., Barbosa, H. M. J., Barbosa, M., Barkhausen, D., Barnhill, S. L. C., Barroso, P., Bauleo, J., Beatty, T., Beau, B. R., Becker, K. H., Becker, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, Bernardini, Paolo, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, P., Blasi, C., Bleve, H., Blumer, P., Boghrat, M., Bohacova, C., Bonifazi, R., Bonino, M., Boratav, J., Brack, J. M., Brunet, P., Buchholz, N. G., Busca, K. S., Caballero Mora, B., Cai, D. V., Camin, J. N., Capdevielle, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chye, D., Clae, P. D. J., Clark, R. W., Clay, S. B., Clay, B., Connolly, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, J., Cronin, S., Dagoret Campagne, T., Dang Quang, P., Darriulat, K., Daumiller, B. R., Dawson, R. M., de Almeida, L. A., de Carvalho, C., De Donato, S. J., de Jong, W. J. M. de Mello J., R., J. R. T., de Mello Neto, DE MITRI, Ivan, M. A. L., de Oliveira, V., de Souza, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, C., Dobrigkeit, J. C., D’Olivo, D., Dornic, A., Dorofeev, M. T., Dova, D., D’Urso, M. A., Duvernoi, R., Engel, L., Epele, M., Erdmann, C. O., Escobar, A., Etchegoyen, A., Ewer, P., Facal San Lui, H., Falcke, A. C., Fauth, D., Fazio, N., Fazzini, A., Fernandez, F., Ferrer, S., Ferry, B., Fick, A., Filevich, A., Filipcic, I., Fleck, E., Fokiti, R., Fonte, D., Fuhrmann, W., Fulgione, B., Garcia, D., Garcia Pinto, L., Garrard, X., Garrido, H., Geenen, G., Gelmini, H., Gemmeke, A., Geranio, P. L., Ghia, M., Giller, J., Gitto, H., Gla, F., Gobbi, M. S., Gold, F., Gomez Albarracin, M., Gomez Berisso, R., Gomez Herrero, M., Goncalves do Amaral, J. P., Gongora, D., Gonzalez, J. G., Gonzalez, M., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, V., Grassi, A., Grillo, C., Grunfeld, C., Grupen, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, M. N., Harakeh, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, M. D., Healy, T., Hebbeker, D., Heck, C., Hojvat, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, M., Iarlori, A., Insolia, M., Kaducak, O., Kalashev, K. H., Kampert, B., Keilhauer, E., Kemp, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, Y., Kolotaev, A., Kopmann, O., Kromer, S., Kuhlman, J., Kuijper, N., Kunka, A., Kusenko, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, G., Longo, R., Lopez, A., Lopez Aguera, A., Lucero, S., Maldera, M., Malek, S., Maltezo, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. G., Mariazzi, I. C., Mari, Martello, Daniele, N., Martinez, J., Martinez, O., Martinez, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, G., Maurin, D., Maurizio, P. O., Mazur, T., Mccauley, M., Mcewen, R. R., Mcneil, G., Medina, M. C., Medina, G., Medina Tanco, A., Meli, D., Melo, E., Menichetti, A., Menshikov, Meurer, C. h. r., R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, C., Morri, M., Mostafa', M. A., Muller, R., Mussa, G., Navarra, L., Nellen, C., Newman Holme, D., Newton, T., Nguyen Thi, R., Nichol, N., Nierstenhofer, D., Nitz, H., Nogima, D., Nosek, L., Nozka, J., Oehlschlager, T., Ohnuki, A., Olinto, L. F. A., Oliveira, V. M., Olmos Gilbaja, M., Ortiz, S., Ostapchenko, L., Otero, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, M., Patel, T., Paul, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, D., Pham Ngoc, T. N., Pham Thi, R., Piegaia, T., Pierog, O., Pisanti, T. A., Porter, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, H. C., Rei, S., Reucroft, B., Revenu, J., Ridky, A., Risi, M., Risse, C., Riviere, V., Rizi, S., Robbin, M., Robert, C., Robledo, G., Rodriguez, D., Rodriguez Fria, J., Rodriguez Martino, J., Rodriguez Rojo, G., Ro, J., Rosado, M., Roth, C., Roucelle, B., Rouille' d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, E. M., Santo, S., Sarkar, R., Sato, V., Scherini, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, D., Semikoz, G., Sequeiro, R. C., Shellard, B. B., Siffert, G., Sigl, P., Skelton, W., Slater, N., Smetniansky De Grande, A., Smialkowski, R., Smida, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, O., Tascau, R., Ticona, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, A., Tonachini, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, V., van Elewyck, R. A., Vazquez, D., Veberic, A., Veiga, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, T., Vo Van, S., Vorobiov, L., Voyvodic, H., Wahlberg, O., Wainberg, T., Waldenmaier, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, J., Xu, T., Yamamoto, P., Younk, E., Za, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Zha, M., Ziolkowski, Longo, Giuseppe, Miele, Gennaro, Guarino, Fausto, DELLA SELVA, Angelo, Aramo, Carla, D'Urso, Domenico, Pisanti, Ofelia, Valore, Laura, and Auger, Collaboration

Subjects
Photon, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astronomy, Osservatorio Pierre Auger, ULTRA-HIGH-ENERGY, Fotones, Astrophysics, 7. Clean energy, 01 natural sciences, Auger, High Energy Physics - Phenomenology (hep-ph), Raggi cosmici, AIR-SHOWERS, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Cascada atmosférica extensa, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, Pierre Auger Observatory, HADRONIC-INTERACTIONS, Radiación cósmica, NEUTRINOS, High Energy Physics - Phenomenology, SIMULATION, Neutrino, PARTICLE, PAIR PRODUCTION, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Fotoni. Energia ultra alta, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], cosmic rays, 0103 physical sciences, ultra-high energy photons, extensive air showers, 010306 general physics, Ciencias Exactas, SPECTRUM, 010308 nuclear & particles physics, GEOMAGNETIC-FIELD, Física, Astronomy and Astrophysics, Earth's magnetic field, Pair production, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Experimental High Energy Physics, ZATSEPIN-KUZMIN CUTOFF, Sciami atmosferici estesi, Event (particle physics)
Abstract

An upper limit of 16% (at 95% c.l.) is derived for the photon fraction in cosmic rays with energies greater than 1019 eV, based on observations of the depth of shower maximum performed with the hybrid detector of the Pierre Auger Observatory. This is the first such limit on photons obtained by observing the fluorescence light profile of air showers. This upper limit confirms and improves on previous results from the Haverah Park and AGASA surface arrays. Additional data recorded with the Auger surface detectors for a subset of the event sample support the conclusion that a photon origin of the observed events is not favored., Facultad de Ciencias Exactas

Published
2007

36. Isotropy of Cosmic Rays beyond 10^{20}  eV Favors Their Heavy Mass Composition.

Author

Abbasi RU, Abe Y, Abu-Zayyad T, Allen M, Arai Y, Arimura R, Barcikowski E, Belz JW, Bergman DR, Blake SA, Buckland I, Cheon BG, Chikawa M, Fujii T, Fujisue K, Fujita K, Fujiwara R, Fukushima M, Furlich G, Globus N, Gonzalez R, Hanlon W, Hayashida N, He H, Hibi R, Hibino K, Higuchi R, Honda K, Ikeda D, Inoue N, Ishii T, Ito H, Ivanov D, Iwasaki A, Jeong HM, Jeong S, Jui CCH, Kadota K, Kakimoto F, Kalashev O, Kasahara K, Kasami S, Kawakami S, Kawata K, Kharuk I, Kido E, Kim HB, Kim JH, Kim JH, Kim SW, Kimura Y, Komae I, Kuzmin V, Kuznetsov M, Kwon YJ, Lee KH, Lubsandorzhiev B, Lundquist JP, Matsumiya H, Matsuyama T, Matthews JN, Mayta R, Mizuno K, Murakami M, Myers I, Lee KH, Nagataki S, Nakai K, Nakamura T, Nishio E, Nonaka T, Oda H, Ogio S, Onishi M, Ohoka H, Okazaki N, Oku Y, Okuda T, Omura Y, Ono M, Oshima A, Oshima H, Ozawa S, Park IH, Park KY, Potts M, Pshirkov MS, Remington J, Rodriguez DC, Rott C, Rubtsov GI, Ryu D, Sagawa H, Saito R, Sakaki N, Sako T, Sakurai N, Sato D, Sato K, Sato S, Sekino K, Shah PD, Shibata N, Shibata T, Shikita J, Shimodaira H, Shin BK, Shin HS, Shinto D, Smith JD, Sokolsky P, Stokes BT, Stroman TA, Takagi Y, Takahashi K, Takamura M, Takeda M, Takeishi R, Taketa A, Takita M, Tameda Y, Tanaka K, Tanaka M, Tanoue Y, Thomas SB, Thomson GB, Tinyakov P, Tkachev I, Tokuno H, Tomida T, Troitsky S, Tsuda R, Tsunesada Y, Udo S, Urban F, Warren D, Wong T, Yamazaki K, Yashiro K, Yoshida F, Zhezher Y, and Zundel Z

Abstract

We report an estimation of the injected mass composition of ultrahigh energy cosmic rays (UHECRs) at energies higher than 10 EeV. The composition is inferred from an energy-dependent sky distribution of UHECR events observed by the Telescope Array surface detector by comparing it to the Large Scale Structure of the local Universe. In the case of negligible extragalactic magnetic fields (EGMFs), the results are consistent with a relatively heavy injected composition at E∼10  EeV that becomes lighter up to E∼100  EeV, while the composition at E>100  EeV is very heavy. The latter is true even in the presence of highest experimentally allowed extragalactic magnetic fields, while the composition at lower energies can be light if a strong EGMF is present. The effect of the uncertainty in the galactic magnetic field on these results is subdominant.

Published
2024
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37. Large-scale extragalactic jets powered by very-high-energy gamma rays.

Author

Neronov A, Semikoz D, Aharonian F, and Kalashev O

Abstract

The radiative cooling of electrons responsible for the nonthermal synchrotron emission of large-scale jets of radiogalaxies and quasars requires quasicontinuous (in time and space) production of relativistic electrons throughout the jets over the scales exceeding 100 kpc. While in the standard paradigm of large-scale jets this implies in situ acceleration of electrons, we propose a different "nonacceleration" origin of these electrons, assuming that they are implemented all over the length of the jet through effective development of electromagnetic cascades initiated by extremely high-energy gamma rays injected into the jet from the central object.

Published
2002
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