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2. Reduced Dislocation Introduction in III–V/Si Heterostructures with Glide-Enhancing Compressively Strained Superlattices

Author

Daniel L. Lepkowski, Tyler J. Grassman, Ari N. Blumer, Jacob T. Boyer, and Zak H. Blumer

Subjects
Materials science, Condensed matter physics, 010405 organic chemistry, Superlattice, Heterojunction, General Chemistry, 010402 general chemistry, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, Condensed Matter::Materials Science, General Materials Science, Dislocation, Computer Science::Information Theory
Abstract

The novel use of a GaAsyP1-y/GaP compressively-strained superlattice (CSS) to provide enhanced control over misfit dislocation (MD) evolution and threading dislocation density (TDD) during GaP/Si m...

Published
2020
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3. Exploring Multiple Pathways to Low TDD GaP/Si for III-V/Si Photovoltaics

Author

Tyler J. Grassman, Jacob T. Boyer, Zak H. Blumer, Steven A. Ringel, and Daniel L. Lepkowski

Subjects
Flexibility (engineering), Materials science, Silicon, chemistry, Photovoltaics, business.industry, Photovoltaic system, Scalability, chemistry.chemical_element, Dislocation, business, Engineering physics
Abstract

Threading dislocation density (TDD) is a key parameter that commonly limits the performance of epitaxially integrated III-V/Si photovoltaics. The GaP/Si epitaxial bridge is a widely studied III-V on Si integration pathway, and recent advances have realized low-106 cm-2 TDD in n-GaP/Si templates that can be integrated in III-V/Si PV designs amenable to efficiencies well beyond single-junction Si. However, continued development and scaling of III-V/Si PV will ultimately rely on a deeper understanding of dislocation evolution in GaP/Si and will require more process flexibility than has heretofore been demonstrated. Thus, this work demonstrates multiple pathways toward achieving-low 106 cm-2 TDD, through which we can gain both substantial fundamental understanding of GaP/Si integration and can achieve the needed process flexibility to enable scalable production.

Published
2021
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4. Recent Advances in GaAsP/Si Top Cell Enabling 27% Tandem Efficiency

Author

Daniel L. Lepkowski, Stephen Bremner, Jacob T. Boyer, Tyler J. Grassman, Hamid Mehrvarz, Mattias K. Juhl, Udo Römer, Zak H. Blumer, Anastasia Soeriyadi, Chuqi Yi, Tal Kasher, Steven A. Ringel, and Anita Ho-Baillie

Subjects
Materials science, Tandem, Tandem cell, Energy conversion efficiency, Fill factor, Engineering physics
Abstract

Historically, the performance of monolithically-integrated GaAsP/Si tandem solar cells has been limited by the presence of elevated TDD in the GaAsP subcell. However, our recent development of low-TDD GaAsP/Si virtual substrates has greatly improved the near-term potential for achieving high efficiency devices. In this work, development efforts employing this new low-TDD platform will be presented. First, our current certified record GaAsP/Si tandem cell (23.4% AM1.5G) is briefly analyzed, identifying the root cause of critical fill factor losses, which in turn informs subsequent design and optimization efforts. Second, the experimental development of high performance GaAsP subcells is shown, following device design strategies that improve J SC and fill factor without sacrificing V OC . Finally, conversion efficiency projections demonstrate that the achieved top cell performance metrics, combined with those expected from the newest bottom cell iteration, should enable ~27% efficient tandems.

Published
2021
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5. Development of Low-TDD GaAsyP1-y/GaP/Si Metamorphic Materials for High-Efficiency III-V/Si Photovoltaics

Author

Jacob T. Boyer, Steven A. Ringel, Ari N. Blumer, Daniel L. Lepkowski, Zak H. Blumer, Tyler J. Grassman, and Francisco A. Rodriguez

Subjects
010302 applied physics, Materials science, Silicon, business.industry, Photovoltaic system, chemistry.chemical_element, Heterojunction, 02 engineering and technology, 021001 nanoscience & nanotechnology, Epitaxy, 7. Clean energy, 01 natural sciences, Gallium arsenide, chemistry.chemical_compound, chemistry, Photovoltaics, 0103 physical sciences, Optoelectronics, Metalorganic vapour phase epitaxy, Dislocation, 0210 nano-technology, business
Abstract

Metamorphic III-V/Si materials with low threading dislocation density (TDD) are critical to realizing high-efficiency III-V/Si multijunction photovoltaics. In pursuit of a dual junction III-V/Si design with a GaAs 0.75 P 0.25 top junction epitaxially integrated on a Si bottom junction, we report on progress made in the development of GaP/Si and GaAsyP l-y /Si materials with significantly reduced TDD. Using a tightly integrated study of fundamental dislocation dynamics, rapid electron microscopy based feedback on dislocation populations, and MOCVD process development, we have fully re-engineered the GaP on Si growth process. Our new approach results in a TDD of 7x104 cm−2 for 50 nm thick films. Implementation of a novel dislocation glide enhancing heterostructure then enabled subsequent growth of fully-relaxed, 500 nm total thickness n-GaP with a TDD of 2.4×106 cm−2. When applied to the production of full GaAs 0.75 P 0.25 /Si tandem solar cell structures, but without any significant optimization thus far, this low TDD is effectively maintained, yielding a terminal TDD of only 3.0x106 cm−2, sufficient to support high photovoltaic performance.

Published
2020
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6. Loss Analysis and Design Strategies Enabling >23% GaAsP/Si Tandem Solar Cells

Author

Steven A. Ringel, Daniel Derkacs, Zak H. Blumer, Stephen Bremner, Anita Ho-Baillie, Chuqi Yi, Anastasia Soeriyadi, Daniel L. Lepkowski, Alex Stavrides, Tyler J. Grassman, Mattias K. Juhl, Chris Kerestes, Jacob T. Boyer, and Hamid Mehrvarz

Subjects
010302 applied physics, Materials science, Silicon, Passivation, Tandem, Band gap, business.industry, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Gallium arsenide, chemistry.chemical_compound, chemistry, 0103 physical sciences, Optoelectronics, Dislocation, 0210 nano-technology, business, Photonic crystal, Voltage
Abstract

Detailed loss analysis of our previously reported 21.8% (unverified) monolithic GaAsP/Si tandem cells has identified and quantified three main mechanisms limiting cell performance: dislocation mediated voltage and current losses, improper bandgap profile, and insufficient rear passivation. This analysis was recently used to redesign the device structure, yielding a substantial performance improvement to 23.4% AM1.5G. The largest area of improvement was in the Voc of 1.73V, an increase of 70 mV versus our previous results, enabled by an -2x reduction in threading dislocation density (TDD) and a more ideal top cell bandgap.

Published
2020
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7. The Green Bank Northern Celestial Cap Pulsar Survey. VI. Discovery and Timing of PSR J1759+5036: A Double Neutron Star Binary Pulsar

Author

G. Y. Agazie, M. G. Mingyar, M. A. McLaughlin, J. K. Swiggum, D. L. Kaplan, H. Blumer, P. Chawla, M. DeCesar, P. B. Demorest, W. Fiore, E. Fonseca, J. D. Gelfand, V. M. Kaspi, V. I. Kondratiev, M. LaRose, J. van Leeuwen, L. Levin, E. F. Lewis, R. S. Lynch, A. E. McEwen, H. Al Noori, E. Parent, S. M. Ransom, M. S. E. Roberts, A. Schmiedekamp, C. Schmiedekamp, X. Siemens, R. Spiewak, I. H. Stairs, and M. Surnis

Subjects
010308 nuclear & particles physics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, 0103 physical sciences, Astronomy and Astrophysics, 010303 astronomy & astrophysics, 01 natural sciences
Abstract

The Green Bank North Celestial Cap survey is a 350 MHz all-sky survey for pulsars and fast radio transients using the Robert C. Byrd Green Bank Telescope. To date, the survey has discovered over 190 pulsars, including 33 millisecond pulsars and 24 rotating radio transients. Several exotic pulsars have been discovered in the survey, including PSR J1759+5036, a binary pulsar with a 176 ms spin period in an orbit with a period of 2.04 days, an eccentricity of 0.3, and a projected semi-major axis of 6.8 light seconds. Using seven years of timing data, we are able to measure one post–Keplerian parameter, advance of periastron, which has allowed us to constrain the total system mass to 2.62 ± 0.03 M ⊙. This constraint, along with the spin period and orbital parameters, suggests that this is a double neutron star system, although we cannot entirely rule out a pulsar-white dwarf binary. This pulsar is only detectable in roughly 45% of observations, most likely due to scintillation. However, additional observations are required to determine whether there may be other contributing effects.

Published
2021
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8. Correlation of early-stage growth process conditions with dislocation evolution in MOCVD-based GaP/Si heteroepitaxy

Author

Jacob T. Boyer, Daniel L. Lepkowski, Zak H. Blumer, Tyler J. Grassman, and Ari N. Blumer

Subjects
Inorganic Chemistry, Materials science, Annealing (metallurgy), Chemical physics, Materials Chemistry, Nucleation, Atomic layer epitaxy, Chemical vapor deposition, Metalorganic vapour phase epitaxy, Dislocation, Condensed Matter Physics, Order of magnitude, Stacking fault
Abstract

To identify the complex relationships between early-stage growth processes and the resultant defect microstructure in GaP/Si heteroepitaxy, a holistic study of several key metal–organic chemical vapor deposition (MOCVD) parameters was conducted, focusing on Si surface preparation and GaP atomic layer epitaxy (ALE) based nucleation processes. Crystalline defects related to the lattice mismatch and/or interfacial heterovalency, namely misfit dislocations (MD), threading dislocations (TD), and stacking fault pyramids (SFP), were quantitatively characterized via electron channeling contrast imaging (ECCI) and correlated against the different process variations. Choice of Si surface preparation method between the two examined (dilute SiH4 annealing versus Si2H6 based homoepitaxy) had little impact on resultant GaP film morphology and defect content, whereas differing GaP ALE nucleation conditions produced much more substantial changes. In particular, the initial precursor species (tert-butylphosphine versus triethygallium) and ALE cycle purge times both yielded significant influence over threading dislocation densities (TDD) in thin (100 nm), post-critical thickness GaP/Si films, with TDD spanning two orders of magnitude, from 6.7 × 107 cm−2 to 7.1 × 105 cm−2, depending on the specific process conditions employed. SFP densities were also found to follow a similar trend, ranging from 2.0 × 107 cm−2 to 1.8 × 105 cm−2, but with no apparent causal relationship between SFP density and TDD. To help explain the dramatic differences observed, detailed, large-area MD network characterization was used to provide statistically-relevant quantitative analyses of the critical dislocation dynamics (introduction rates and glide velocities) associated with the different process variants. These extracted values are then correlated against the ALE process variants to provide insight into the potential mechanistic roles of the different growth processes.

Published
2021
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9. Si-matched BxGa1−xP grown via hybrid solid- and gas-source molecular beam epitaxy

Author

Daniel L. Lepkowski, Ari N. Blumer, Zak H. Blumer, Tyler J. Grassman, and Jacob T. Boyer

Subjects
010302 applied physics, Materials science, Physics and Astronomy (miscellaneous), business.industry, Relaxation (NMR), BCL3, 02 engineering and technology, Substrate (electronics), 021001 nanoscience & nanotechnology, 01 natural sciences, Transmission electron microscopy, 0103 physical sciences, Ultimate tensile strength, Optoelectronics, Dislocation, 0210 nano-technology, business, Molecular beam epitaxy
Abstract

The growth of BxGa1−xP alloys by hybrid solid/gas-source molecular beam epitaxy, with B supplied via the BCl3 gas precursor, is demonstrated. Compositional control ranging from pure GaP to B0.045Ga0.955P has thus far been achieved. Slightly tensile-strained B0.031Ga0.969P grown on nearly pseudomorphic, compressively strained GaP/Si was used to produce an effectively strain-free (0.06% tensile misfit at growth temperature) 160 nm total III–V thickness BxGa1−xP/Si virtual substrate with a threading dislocation density of

Published
2020
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10. Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory

Author

J. Abraham, P. Abreu, M. Aglietta, C. Aguirre, E. J. Ahn, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Muniz, M. Ambrosio, L. Anchordoqui, S. Andringa, A. Anzalone, C. Aramo, E. Arganda, S. Argir, K. Arisaka, F. Arneodo, F. Arqueros, T. Asch, H. Asorey, P. Assis, J. Aublin, M. Ave, G. Avila, A. Bacher, T. Backer, D. Badagnani, K. B. Barber, A. F. Barbosa, H. J. M. Barbosa, N. Barenthien, S. L. C. Barroso, B. Baughman, P. Bauleo, J. J. Beatty, T. Beau, B. R. Becker, K. H. Becker, A. Belletoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch Bigas, F. Blanco, C. Bleve, H. Blumer, M. Bohacova, E. Bollmann, H. Bolz, C. Bonifazi, R. Bonino, N. Borodai, F. Bracci, J. Brack, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero Mora, D. Camin, L. Caramete, R. Caruso, W. Carvalho, A. Castellina, J. Castro, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chudoba, J. Chye, P. D. J. Clark, R. W. Clay, E. Colombo, R. Conceicao, B. Connolly, F. Contreras, J. Coppens, A. Cordero, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. W. Cronin, J. Cuautle, A. Curutiu, S. Dagoret Campagne, R. Dallier, F. Daudo, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, G. Decerprit, L. del Peral, O. Deligny, A. Della Selva, C. Delle Fratte, H. Dembinski, C. Di Giulio, J. C. Diaz, P. N. Diep, C. Dobrigkeit, J. C. D’Olivo, P. N. Dong, D. Dornic, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. Du Vernois, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, F. Ferrer, A. Ferrero, B. Fick, A. Filevich, A. Filipcic, I. Fleck, S. Fliescher, R. Fonte, C. E. Fracchiolla, E. D. Fraenkel, W. Fulgione, R. F. Gama rra, S. Gambetta, B. Garcıa, D. Garcıa Gamez, D. Garcia Pinto, X. Garrido, H. Geenen, G. Gelmini, H. Gemmekeai, P. L. Ghia, U. Giaccari, K. Gibbs, M. Giller, J. Gitto, H. Glass, L. M. Goggin, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gomez Berisso, P. F. Gomez Vitale, P. Goncalves, M. Goncalves do Amaral, D. Gonzalez, J. G. Gonzalez, D. Gora, A. Gorgi, P. Gouffon, E. Grashorn, V. Grassi, S. Grebe, M. Grigat, A. F. Grillo, J. Grygar, Y. Guardincerri, N. Guardone, C. Guerard, F. Guarino, R. Gumbsheimer, G. P. Guedes, J. Gutierrez, J. D. Hague, V. Halenka, P. Hansen, D. Harari, S. Harmsma, S. Hartmann, J. L. Harton, A. Haungs, M. D. Healy, T. Hebbeker, G. Hebrero, D. Heck, C. Hojvat, V. C. Holmes, P. Homola, G. Hofman, J. R. Horandel, A. Horneffer, M. Horvat, M. Hrabovsky, H. Hucker, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, S. Jiraskova, M. Kaducak, K. H. Kampert, T. Karova, P. Kasper, B. Ke, B. Keilhauer, E. Kempq, H. Kern, R. M. Kieckhafer, H. O. Klages, M. . Kleifges, J. Kleinfeller, R. Knapik, J. Knapp, D. H. Koang, A. Kopmann, A. Krieger, O. Kromer, D. Kruppke Hansen, D. Kuempel, N. Kunka, A. Kusenko, G. La Rosa, C. Lachaud, B. L. Lago, P. Lautridou, M. S. A. B. Leao, D. Lebrun, P. Lebrun, J. Lee, M. A. Leiguide Oliveira, A. Lemiere, A. Letessier Selvon, M. Leuthold, I. Lhenry Yvon, R. Lopez, A. Lopez Aguera, K. Louedec, J. Lozano Bahilo, A. Lucero, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, M. Malek, D. Mandat, P. Mantsch, F. Marchetto, A. G. Mariazzi, I. C. Maris, H. R. Marquez Falcon, O. Martineau, O. Martınez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, M. McEwen, R. R. McNeil, G. Medina Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, R. Meyhandan, M. I. Micheletti, G. Miele, W. Miller, L. Miramonti, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, J. C. Moreno, C. Morris, M. Mostafa, C. A. Moura, M. Mucchi, S. Mueller, M. . A. Muller, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, F. Nerling, C. Newman Holmes, D. Newton, P. T. Nhung, D. Nicotra, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nozka, M. Nyklicek, J. Oehlschlager, A. Olinto, P. Oliva, V. M. Olmos Gilbaja, M. Ortiz, F. Ortolani, B. Oßwald, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, G. Parente, E. Parizot, S. Parlati, S. Pastor, M. Patel, T. Paul, V. Pavlidou, K. Payet, M. Pech, J. Pekala, I. M. Pepe, R. Pesce, E. Petermann, S. Petrera, P. Petrinca, A. Petrolini, Y. Petrov, J. Petrovic, C. Pfendner, A. Pichel, R. Piegaia, T. Pierog, M. Pimenta, T. Pinto, V. Pirronello, O. Pisanti, M. Platino, J. Pochon, V. H. Ponce, M. Pontz, J. Pouryamout, L. Prado J.r., P. Privitera, M. Prouza, E. J. Quel, G. Raia, J. Rautenberg, O. Ravel, D. Ravignani, A. Redondo, H. C. Reis, S. Reucroft, B. Revenu, F. A. S. Rezendem, J. Ridky, S. Riggi, M. Risse, C. Riviere, V. Rizi, C. Robledo, M. D. Roberts, G. Rodriguez, J. Ro driguez Martino, J. Rodriguez Rojo, I. Rodriguez Cabo, M. D. Rodrıguez Frias, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouille d’Orfeuil, E. Roulet, A. C. Rovero, F. Salamida, H. Salazar, G. Salina, F. Sanchez, M. Santander, C. E. Santo, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, G. Schleif, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovanek, F. Schroeder, S. Schulte, F. Schussler, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, G. Sequieros, M. Settimo, R. C. Shellard, I. Sidelnik, B. B. Siffert, A. Smiakowski, R. Smıda, A. G. K. Smith, B. E. Smith, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijarvi, A. D. Supanitsky, M. S. Sutherland, J. Swain, Z. Szadkowski, A. Tamashiro, A. Tamburro, T. Tarutina, O. Tascau, R. Tcaciuc, D. Tcherniakhovski, N. T. Thao, D. Thomas, R. Ticona, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, B. Tome, A. Tonachini, I. Torres, P. Trapani, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, V. Tuci, M. Tueros, E. Tusi, R. Ulrich, M. Unger, M. Urban, J. F. Valdes Galicia, I. Valino, L. Valore, A. M. van den Berg, J. R. Vazquez, R. A. Vazquez, D. Veberic, A. Velarde, T. Venters, V. Verzi, M. Videla, L. Villasenor, G. Vitali, S. Vorobiov, L. Voyvodic, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Warner, S. Westerhoff, B. J. Whelan, N. Wild, C. Wiebusch, G. Wieczorek, L. Wiencke, B. Wilczynska, H. Wilczynski, C. Wileman, M. G. Winnick, G. Worner, H. Wuac, B. Wundheiler, T. Yamamoto, P. Younk, G. Yuan, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, M. Ziolkowski, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, 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), 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), 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), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, P., Abreu, M., Aglietta, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Castillo, J., Alvarez Muñiz, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Anti??i??, A., Anzalone, Aramo, Carla, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, T., Bäcker, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman, J., Bäuml, J. J., Beatty, B. R., Becker, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Bohá??ová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, K. S., Caballero Mora, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, M. R., Coluccia, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, I., De Mitri, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, J. C., Diaz, M. L., Díaz Castro, P. N., Diep, C., Dobrigkeit, W., Docter, J. C., D???olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D???urso, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, I., Fajardo Tapia, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, A., Ferrero, B., Fick, A., Filevich, A., Filip??i??, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, D., García Gámez, D., Garcia Pinto, A., Gascon, H., Gemmeke, K., Gesterling, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P., Gonçalve, D., Gonzalez, J. G., Gonzalez, B., Gookin, D., Góra, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, N., Griffith, M., Grigat, A. F., Grillo, Y., Guardincerri, Guarino, Fausto, G. P., Guede, A., Guzman, J. D., Hague, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, A., Horneffer, M., Hrabovský, T., Huege, A., Insolia, F., Ionita, A., Italiano, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, F., Kuehn, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, P., Lautridou, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Lemiere, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, G., Marsella, D., Martello, L., Martin, H., Martinez, O., Martínez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, C., Meurer, S., Mi??anovi??, M. I., Micheletti, W., Miller, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, C., Morri, M., Mostafá, C. A., Moura, S., Mueller, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., No??ka, M., Nyklicek, J., Oehlschläger, A., Olinto, P., Oliva, V. M., Olmos Gilbaja, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, R. D., Parson, S., Pastor, T., Paul, M., Pech, J., Pe¸kala, R., Pelayo, I. M., Pepe, L., Perrone, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, N., Phan, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, C., Robledo, W., Rodrigues de Carvalho, G., Rodriguez, J., Rodriguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d???Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, F., Salamida, H., Salazar, G., Salina, F., Sánchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, A., ??mia??kowski, R., ??mída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., ??u??a, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tamashiro, A., Tapia, M., Tartare, O., Ta??c??u, C. G., Tavera Ruiz, R., Tcaciuc, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, D. K., Tiwari, W., Tkaczyk, C. J., Todero Peixoto, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, Valore, Laura, A. M., van den Berg, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberi??, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, D., Warner, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczy??ska, H., Wilczy??ski, M., Will, C., William, T., Winchen, M. G., Winnick, M., Wommer, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, Yushkov, Alexey, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Zimbres Silva, M., Ziolkowski, J., Abraham, C., Aguirre, J., Alvarez Muniz, C., Aramo, S., Argir, K., Arisaka, F., Arneodo, T., Asch, A., Bacher, T., Backer, D., Badagnani, H. J. M., Barbosa, N., Barenthien, P., Bauleo, T., Beau, A., Belletoile, O., Blanch Biga, H., Blumer, M., Bohacova, E., Bollmann, H., Bolz, F., Bracci, N. G., Busca, D., Camin, W., Carvalho, J., Castro, J., Chye, P. D. J., Clark, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, A., Cordero, U., Cotti, J. W., Cronin, J., Cuautle, F., Daudo, DE MITRI, Ivan, A., Della Selva, C., Delle Fratte, J. C., D’Olivo, D., Dornic, D., D’Urso, M. A., Du Vernoi, F., Ferrer, A., Filipcic, I., Fleck, R., Fonte, W., Fulgione, R. F., Gama rra, B., Garcıa, D., Garcıa Gamez, X., Garrido, H., Geenen, G., Gelmini, H., Gemmekeai, K., Gibb, J., Gitto, L. M., Goggin, M., Gomez Berisso, P. F., Gomez Vitale, P., Goncalve, M., Goncalves do Amaral, D., Gora, V., Grassi, J., Grygar, N., Guardone, C., Guerard, F., Guarino, R., Gumbsheimer, J., Gutierrez, V., Halenka, S., Hartmann, M. D., Healy, G., Hebrero, G., Hofman, J. R., Horandel, M., Horvat, M., Hrabovsky, H., Hucker, M., Hussain, M., Iarlori, M., Kaducak, T., Karova, B., Ke, E., Kempq, H., Kern, Kleifges, M., R., Knapik, A., Kopmann, A., Krieger, O., Kromer, A., Kusenko, B. L., Lago, M. S. A. B., Leao, J., Lee, M. A., Leiguide Oliveira, M., Leuthold, R., Lopez, A., Lopez Aguera, M., Malek, F., Marchetto, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, M., Mcewen, R. R., Mcneil, R., Meyhandan, G., Miele, M., Mostafa, M., Mucchi, M. . A., Muller, F., Nerling, C., Newman Holme, D., Newton, D., Nicotra, L., Nozka, J., Oehlschlager, F., Ortolani, B., Oßwald, S., Parlati, M., Patel, V., Pavlidou, K., Payet, J., Pekala, Perrone, Lorenzo, A., Pichel, T., Pinto, O., Pisanti, J., Pochon, J., Pouryamout, L. Prado J., R., G., Raia, A., Redondo, H. C., Rei, S., Reucroft, F. A. S., Rezendem, C., Riviere, M. D., Robert, J., Ro driguez Martino, M. D., Rodrıguez Fria, B., Rouille d’Orfeuil, F., Sanchez, M., Santander, G., Schleif, T., Schmidt, P., Schovanek, F., Schroeder, F., Schussler, D., Semikoz, G., Sequiero, B. B., Siffert, A., Smiakowski, R., Smıda, A. G. K., Smith, B. E., Smith, T., Suomijarvi, A., Tamburro, T., Tarutina, O., Tascau, D., Tcherniakhovski, R., Ticona, B., Tome, I., Torre, P., Trapani, V., Tuci, E., Tusi, J. F., Valdes Galicia, I., Valino, L., Valore, J. R., Vazquez, R. A., Vazquez, D., Veberic, A., Velarde, T., Venter, L., Villasenor, G., Vitali, S., Vorobiov, L., Voyvodic, N., Wild, C., Wiebusch, B., Wilczynska, H., Wilczynski, C., Wileman, G., Worner, H., Wuac, A., Yushkov, 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), 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), 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), APC - Astrophysique des Hautes Energies (APC - AHE), 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), 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), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Abreu, P., Aglietta, M., Ahn, E., Albuquerque, I., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez Castillo, J., Alvarez-Muñiz, J., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Antičić, T., Anzalone, A., Aramo, C., Arganda, E., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Bäcker, T., Balzer, M., Barber, K., Barbosa, A., Bardenet, R., Barroso, S., Baughman, B., Bäuml, J., Beatty, J., Becker, B., Becker, K., Bellétoile, A., Bellido, J., Benzvi, S., Berat, C., Bertou, X., Biermann, P., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Cheng, S., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Coluccia, M., Conceião, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Dasso, S., Daumiller, K., Dawson, B., De Almeida, R., De Domenico, M., De Donato, C., De Jong, S., De La Vega, G., De Mello Junior, W., De Mello Neto, J., De Mitri, I., De Souza, V., De Vries, K., Decerprit, G., Del Peral, L., Del Río, M., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Diaz, J., Díaz Castro, M., Diep, P., Dobrigkeit, C., Docters, W., D'Olivo, J., Dong, P., Dorofeev, A., Dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Espadanal, J., Etchegoyen, A., Facal San Luis, P., Fajardo Tapia, I., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferguson, A., Ferrero, A., Fick, B., Filevich, A., Filipčič, A., Fliescher, S., Fracchiolla, C., Fraenkel, E., Fröhlich, U., Fuchs, B., Gaior, R., Gamarra, R., Gambetta, S., García, B., García Gámez, D., Garcia-Pinto, D., Gascon, A., Gemmeke, H., Gesterling, K., Ghia, P., Giaccari, U., Giller, M., Glass, H., Gold, M., Golup, G., Gomez Albarracin, F., Gómez Berisso, M., Gonalves, P., Gonzalez, D., Gonzalez, J., Gookin, B., Góra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Griffith, N., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Guzman, A., Hague, J., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Hollon, N., Holmes, V., Homola, P., Hörandel, J., Horneffer, A., Hrabovský, M., Huege, T., Insolia, A., Ionita, F., Italiano, A., Jarne, C., Jiraskova, S., Josebachuili, M., Kadija, K., Kampert, K., Karhan, P., Kasper, P., Kégl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleinfeller, J., Knapp, J., Koang, D., Kotera, K., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, J., Kunka, N., La Rosa, G., Lachaud, C., Lautridou, P., Leão, M., Lebrun, D., Lebrun, P., Leigui De Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, J., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martin, L., Martinez, H., Martínez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Mertsch, P., Meurer, C., Mićanović, S., Micheletti, M., Miller, W., Miramonti, L., Molina-Bueno, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostafá, M., Moura, C., Mueller, S., Muller, M., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Nhung, P., Niemietz, L., Nierstenhoefer, N., Nitz, D., Nosek, D., Nožka, L., Nyklicek, M., Oehlschläger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parra, A., Parsons, R., Pastor, S., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Phan, N., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Querchfeld, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rivera, H., Rizi, V., Roberts, J., Robledo, C., Rodrigues De Carvalho, W., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodríguez-Frías, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouillé-D'Orfeuil, B., Roulet, E., Rovero, A., Rühle, C., Salamida, F., Salazar, H., Salina, G., Sánchez, F., Santo, C., Santos, E., Sarazin, F., Sarkar, B., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovánek, P., Schröder, F., Schulte, S., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Settimo, M., Shadkam, A., Shellard, R., Sidelnik, I., Sigl, G., Silva Lopez, H., Śmiałkowski, A., Šmída, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Stanic, S., Stapleton, J., Stasielak, J., Stephan, M., Strazzeri, E., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A., Šuša, T., Sutherland, M., Swain, J., Szadkowski, Z., Szuba, M., Tamashiro, A., Tapia, A., Tartare, M., Tacu, O., Tavera Ruiz, C., Tcaciuc, R., Tegolo, D., Thao, N., Thomas, D., Tiffenberg, J., Timmermans, C., Tiwari, D., Tkaczyk, W., Todero Peixoto, C., Tomé, B., Tonachini, A., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J., Valiño, I., Valore, L., Van Den Berg, A., Varela, E., Vargas Cárdenas, B., Vázquez, J., Vázquez, R., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Walz, D., Warner, D., Watson, A., Weber, M., Weidenhaupt, K., Weindl, A., Westerhoff, S., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Winnick, M., Wommer, M., Wundheiler, B., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zimbres Silva, M., and Ziolkowski, M.

Subjects
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Field (physics), Astronomy, ultra-high energy cosmic rays, Pierre Auger Observatory, arrival directions, FOS: Physical sciences, Cosmic ray, Astrophysics, 01 natural sciences, Cosmic Ray, Auger, Position (vector), 0103 physical sciences, FIELD, Pierre auger observatory, 010303 astronomy & astrophysics, Ultra-high energy cosmic ray, DETECTOR, Ciencias Exactas, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Arrival directions, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Isotropy, Física, Astronomy and Astrophysics, ASTROFÍSICA, Ultra-high energy cosmic rays, Magnetic field, Experimental High Energy Physics, Data analysis, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], RAIOS CÓSMICOS, Arrival direction, Ultra-High Energy Cosmic Ray
Abstract

We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or ‘multiplets’) which exhibit a correlation between arrival direc- tion and the inverse of the energy. These signatures are expected from sets of events coming from the same source after having been deflected by intervening coherent magnetic fields. The observation of several events from the same source would open the possibility to accurately reconstruct the position of the source and also measure the integral of the component of the magnetic field orthogonal to the trajectory of the cos- mic rays. We describe the largest multiplets found and compute the probability that they appeared by chance from an isotropic distribution. We find no statistically significant evidence for the presence of mul- tiplets arising from magnetic deflections in the present data., Facultad de Ciencias Exactas

Published
2012
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11. The Primary Proton Spectrum of Cosmic Rays Measured with Single Hadrons at Ground Level

Author

T. Antoni, W. D. Apel, F. Badea, K. Bekk, A. Bercuci, H. Blumer, H. Bozdog, I. M. Brancus, C. Buttner, A. Chilingarian, K. Daumiller, P. Doll, R. Engel, J. Engler, F. Fesler, H. J. Gils, R. Glasstetter, A. Haungs, D. Heck, J. R. Horandel, K.‐H. Kampert, H. O. Klages, G. Maier, H. J. Mathes, H. J. Mayer, J. Milke, M. Muller, R. Obenland, J. Oehlschlager, S. Ostapchenko, M. Petcu, H. Rebel, A. Risse, M. Risse, M. Roth, G. Schatz, H. Schieler, J. Scholz, T. Thouw, H. Ulrich, J. van Buren, A. Vardanyan, A. Weindl, J. Wochele, and J. Zabierowski

Subjects
Physics, Proton, Calorimeter (particle physics), Astrophysics::High Energy Astrophysical Phenomena, Hadron, Flux, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Power law, Nuclear physics, Atmosphere, KASCADE, Space and Planetary Science, High Energy Physics::Experiment
Abstract

The flux of cosmic-ray induced single hadrons near sea level has been measured with the large hadron calorimeter of the KASCADE experiment. The measurement corroborates former results obtained with detectors of smaller size if the enlarged veto of the 304 m^2 calorimeter surface is encounted for. The program CORSIKA/QGSJET is used to compute the cosmic-ray flux above the atmosphere. Between E_0=300 GeV and 1 PeV the primary proton spectrum can be described with a power law parametrized as dJ/dE_0=(0.15+-0.03)*E_0^{-2.78+-0.03} m^-2 s^-1 sr^-1 TeV^-1. In the TeV region the proton flux compares well with the results from recent measurements of direct experiments.

Published
2004
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14. Practicality of using a Tether for electrodynamic reboost of the International Space Station

Author

John H. Blumer, Michal E. Bangham, and Benjamin B. Donahue

Subjects
Engineering, business.product_category, Rocket, business.industry, International Space Station, Orbit (dynamics), Liquid rocket propellants, Thrust, Aerospace engineering, Propulsion, Space research, business, Space rendezvous
Abstract

ElectroDynamic (ED) Tethers can generate continuous low thrust in a low Earth orbit. An induced current running through the length of the tether reacts with the geomagnetic field to produce thrust. The amount of thrust scales with tether lens!th and current. The International Space Station (ISS) requires periodic reboost to maintain an approximately circular orbit t above the Earth. The baseline reboost method is a traditional bi-propellant rocket thruster and tankage system which must to be refueled via Soyuz / Progress or other launch vehicle. The estimated propellant costs associated with keeping ISS in the designated orbit over a 10-year life have been extremely high. The ED Tether would draw energy from the renewable ISS Solar Array electrical power system. Propulsion requirements for ISS vary depending on solar wind and other conditions. It is projected that a ED Tether could provide the majority of the required reboost thrust for ISS for a nominal solar year. For above nominal solar wind years the ISS would have to use the rocket reboost system, but at a greatly reduced level. Thus resulting in substantial cost savings, via the reduction in the number of Earth-to-orbit launch vehicle flights to the ISS that must bring reboost propellant. However, the purposes of this paper is to further Previous research on an ISS ED Tether and examine the operational and technical issues working against using a ED Tether on ISS. Issues such as Shuttle rendezvous and flight path concerns raise serious safety concerns and restrictions on tether use. Tether issues such as tether librations and off angle thrust raise concerns about impacts to microgravity payloads and the long-term effect on ISS orbital path and inclination. Operational issues such as peak power available to an ED Tether and allowable duty cycle may impose severe restrictions on tether design and ultimately limit the practicality of an ED Tether on ISS. Thus while at first glance the cost numbers appear to be strongly in favor of an ED Tether the limitations imposed by safety, operations and technical concerns may severely undermine the economic model. Possible Solutions to these problems have been investigated and proposed, however some items like off angle thrust are still being actively investigated for an adequate solution.

Published
2001
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15. Lessons learned using COTS electronics for the International Space Station radiation environment

Author

John H. Blumer

Subjects
Schedule, Engineering, Backplane, business.industry, Interface (computing), Embedded system, International Space Station, Eurocard, Systems engineering, Electronics, Space research, business, VMEbus
Abstract

The mantra of 'Faster, Better, Cheaper' has to a large degree been interpreted as using Commercial Off-the-Shelf (COTS) components and/or circuit boards. One of the first space applications to actually use COTS in space along with radiation performance requirements was the Expedite the Processing of Experiments to Space Station (EXPRESS) Rack program, for the International Space Station (ISS). In order to meet the performance, cost and schedule targets, military grade Versa Module Eurocard (VME) was selected as the baseline design for the main computer, the Rack Interface Controller (RIC). VME was chosen as the computer backplane because of the large variety of military grade boards available, which were designed to meet the military environmental specifications (thermal, shock, vibration, etc.). These boards also have a paper pedigree in regards to components. Since these boards exceeded most ISS environmental requirements, it was reasoned using COTS mid-grade VME boards, as opposed to designing custom boards could save significant time and money. It was recognized up front the radiation environment of ISS, while benign compared to many space flight applications, would be the main challenge to using COTS. Thus in addition to selecting vendors on how well their boards met the usual performance and environmental specifications, the board's parts lists were reviewed on how well they would perform in the ISS radiation environment. However, issues with verifying that the available radiation test data was applicable to the actual part used, vendor part design changes and the fact most parts did not have valid test data soon complicated board and part selection in regards to radiation.

Published
2001
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17. PHYSICOCHEMICAL STUDIES ON PRECIPITATING AND NON-PRECIPITATING ANTIBODIES AFTER PRIMARY IMMUNIZATION

Author

F. Cua-Lim, Bram Rose, H. Blumer, and Maxwell Richter

Subjects
Antiserum, Precipitating antibodies, biology, Antigen, Chemistry, biology.protein, Serum protein, Primary response, Primary immunization, Gamma globulin, General Medicine, Antibody, Molecular biology
Abstract

Antisera were obtained from rabbits within 30 days (early antisera) and 90–120 days (late antisera) after the last of a series of intravenous injections of serum protein antigens (primary response). The antibodies present in early antisera were found capable of precipitating with the antigen and of agglutinating sensitized red blood cells, whereas those present in late antisera exhibited only the latter property. These two types of antibodies could not be differentiated on the basis of their electrophoretic, sedimentation, and salting out properties. Both behaved essentially as gamma globulins.

Published
1962
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18. Precipitating and Nonprecipitating Antibodies in the Primary and Secondary Immune Responses

Author

H. Blumer, M. Richter, F. Cua-Lim, and B. Rose

Subjects
Immunology, Immunology and Allergy
Abstract

Summary The formation of antibodies to soluble protein antigens for many months after primary immunization has been confirmed. These antibodies were produced after the immunization of rabbits with bovine serum albumin, egg albumin, human γ-globulin, pig γ-globulin and bovine γ-globulin. The antibodies present in the circulation 11 to 16 days after the initial immunization could be detected by using antigen-coated red cells and, in most cases, by the precipitin technique as well. Those antibodies present in the circulation several months later could be detected only by the hemagglutination technique. The hemagglutinating antibody titer remained constant for at least 6 months after primary immunization. In some cases the nonprecipitating antibody concentration was found to rise at a time when the precipitating antibody level was declining. Hemagglutinating antibody titers of sera, following secondary immunization, rose to high levels very rapidly and then started to decline, rapidly at first and more slowly later. Only those antisera which were obtained during the early period of antibody production and which contained precipitating antibody could passively sensitize guinea pigs. Cortisone acetate inhibited the primary response to intravenously injected antigens in six out of seven rabbits. It failed, however, to inhibit the secondary antibody response.

Published
1962
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19. Correlation of the highest-energy cosmic rays with nearby extragalactic objects

Author

J. Abraham, P. Abreu, M. Aglietta, C. Aguirre, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Muniz, M. Ambrosio, L. Anchordoqui, S. Andringa, A. Anzalone, C. Aramo, S. Argiro', K. Arisaka, E. Armengaud, F. Arneodo, F. Arquero, T. Asch, H. Asorey, P. Assis, B. S. Atulugama, J. Aublin, M. Ave, G. Avila, T. Backer, D. Badagnani, A. F. Barbosa, D. Barnhill, S. L. C. Barroso, P. Bauleo, J. J. Beatty, T. Beau, B. R. Becker, K. H. Becker, J. A. Bellido, S. BenZvi, C. Berat, T. Bergmann, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch Bigas, F. Blanco, P. Blasi, C. Bleve, H. Blumer, M. Bohacova, C. Bonifazi, R. Bonino, M. Boratav, J. Brack, P. Brogueira, W. C. Brown, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero Mora, B. Cai, D. V. Camin, L. Caramete, R. Caruso, W. Carvalho, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chye, P. D. J. Clark, R. W. Clay, E. Colombo, R. Conceicao, B. Connolly, F. Contreras, J. Coppens, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. Cronin, A. Curutiu, S. Dagoret Campagne, K. Daumiller, B. R. Dawson, R. M. de Almeida, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, 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, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. DuVernois, R. Engel, L. Epele, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, F. Ferrer, S. Ferry, B. Fick, A. Filevich, A. Filipcic, I. Fleck, R. Fonte, C. E. Fracchiolla, W. Fulgione, B. Garcia, D. Garcia Gamez, D. Garcia Pinto, X. Garrido, H. Geenen, G. Gelmini, H. Gemmeke, P. L. Ghia, M. Giller, H. Glass, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gomez Berisso, R. Gomez Herrero, P. Goncalves, M. Goncalves do Amaral, D. Gonzalez, J. G. Gonzalez, M. Gonzalez, D. Gora, A. Gorgi, P. Gouffon, V. Grassi, A. F. Grillo, C. Grunfeld, Y. Guardincerri, F. Guarino, G. P. Guedes, J. Gutierrez, J. D. Hague, J. C. Hamilton, P. Hansen, D. Harari, S. Harmsma, J. L. Harton, A. Haungs, T. Hauschildt, M. D. Healy, T. Hebbeker, G. Hebrero, D. Heck, C. Hojvat, V. C. Holmes, P. Homola, J. Horandel, A. Horneffer, M. Horvat, M. Hrabovsky, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, M. Kaducak, K. H. Kampert, T. Karova, B. Kegl, B. Keilhauer, E. Kemp, R. M. Kieckhafer, H. O. Klages, M. Kleifges, J. Kleinfeller, R. Knapik, J. Knapp, D. H. Koang, A. Krieger, O. Kromer, D. Kuempel, N. Kunka, A. Kusenko, G. La Rosa, C. Lachaud, B. L. Lago, D. Lebrun, P. Lebrun, J. Lee, M. A. Leigui de Oliveira, A. Letessier Selvon, M. Leuthold, I. Lhenry Yvon, R. Lopez, A. Lopez Aguera, J. Lozano Bahilo, R. Luna Garcia, M. C. Maccarone, C. Macolino, S. Maldera, M. E. Mancenido, D. Mandat, P. Mantsch, A. G. Mariazzi, I. C. Maris, H. R. Marquez Falcon, J. Martinez, O. Martinez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, T. McCauley, M. McEwen, R. R. McNeil, M. C. Medina, G. Medina Tanco, A. Meli, D. Melo, E. Menichetti, A. Menschikov, C.h.r. Meurer, R. Meyhandan, M. I. Micheletti, G. Miele, W. Miller, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, J. C. Moreno, C. Morris, M. Mostafa, M. A. Muller, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, C. Newman Holmes, D. Newton, N. T. Thao, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nozka, J. Oehlschlager, T. Ohnuki, A. Olinto, V. M. Olmos Gilbaja, M. Ortiz, F. Ortolani, S. Ostapchenko, L. Otero, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, G. Parente, E. Parizot, S. Parlati, S. Pastor, M. Patel, T. Paul, V. Pavlidou, K. Payet, M. Pech, J. Pekala, R. Pelayo, I. M. Pepe, S. Petrera, P. Petrinca, Y. Petrov, P. N. Diep, P. N. Dong, P. T. Nhung, A. Pichel, R. Piegaia, T. Pierog, M. Pimenta, T. Pinto, V. Pirronello, O. Pisanti, M. Platino, J. Pochon, P. Privitera, M. Prouza, E. J. Quel, J. Rautenberg, A. Redondo, S. Reucroft, B. Revenu, F. A. S. Rezende, J. Ridky, S. Riggi, M. Risse, C. Riviere, V. Rizi, M. Roberts, C. Robledo, G. Rodriguez, M. D. Rodriguez Frias, J. RodriguezMartino, J. Rodriguez Rojo, I. Rodriguez Cabo, G. Ros, 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, C. E. Santo, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, V. Scherini, H. Schieler, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, P. Schovanek, F. Schussler, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, M. Settimo, R. C. Shellard, I. Sidelnik, B. B. Siffert, G. Sigl, N. Smetniansky De Grande, A. Smialkowski, R. Smida, A. G. K. Smith, B. E. Smith, G. R. Snow, P. Sokolsky, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijarvi, A. D. Supanitsky, M. S. Sutherland, J. Swainc, Z. Szadkowski, J. Takahashi, A. Tamashiro, A. Tamburro, O. Tascau, R. Tcaciuc, D. Thomas, R. Ticon, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, B. Tome', A. Tonachini, I. Torres, D. Torresi, P. Travnicek, A. Tripathi, G. Tristram, D. Tscherniakhovski, M. Tueros, V. Tunnicliffe, R. Ulrich, M. Unger, M. Urbana, 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. Ventersc, V. Verzi, M. Videl, L. Villasenor, S. Vorobiov, L. Voyvodic, H. Wahlber, O. Wainber, P. Walker, D. Warner, A. A. Watson, S. Westerhoff, G. Wieczorek, L. Wiencke, B. Wilczynska, H. Wilczynski, C. Wileman, M. G. Winnick, H. Wua, B. Wundheiler, T. Yamamoto, P. Younk, E. Zasb, D. Zavrtanik, M. Zavrtanik, A. Zech, A. Zepeda, M. Ziolkowski, BERNARDINI, Paolo, DE MITRI, Ivan, MANCARELLA, Giovanni, MARTELLO, Daniele, PERRONE, Lorenzo, J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, S., Argiro', K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, B. S., Atulugama, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, A. F., Barbosa, D., Barnhill, S. L. C., Barroso, P., Bauleo, J. 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, M., Bohacova, C., Bonifazi, R., Bonino, M., Boratav, J., Brack, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, B., Cai, D. V., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, K., Daumiller, B. R., Dawson, R. M., de Almeida, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, 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, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. A., Duvernoi, R., Engel, L., Epele, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, F., Ferrer, S., Ferry, B., Fick, A., Filevich, A., Filipcic, I., Fleck, R., Fonte, C. E., Fracchiolla, W., Fulgione, B., Garcia, D., Garcia Gamez, D., Garcia Pinto, X., Garrido, H., Geenen, G., Gelmini, H., Gemmeke, P. L., Ghia, M., Giller, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gomez Berisso, R., Gomez Herrero, P., Goncalve, M., Goncalves do Amaral, D., Gonzalez, J. G., Gonzalez, M., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, V., Grassi, A. F., Grillo, C., Grunfeld, Y., Guardincerri, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hauschildt, M. D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, M., Kaducak, K. H., Kampert, T., Karova, B., Kegl, B., Keilhauer, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, M. A., Leigui de Oliveira, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, J., Lozano Bahilo, R., Luna Garcia, M. C., Maccarone, C., Macolino, S., Maldera, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. G., Mariazzi, I. C., Mari, H. R., Marquez Falcon, Martello, Daniele, J., Martinez, O., Martinez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, T., Mccauley, M., Mcewen, R. R., Mcneil, M. C., Medina, G., Medina Tanco, A., Meli, D., Melo, E., Menichetti, A., Menschikov, 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, J. C., Moreno, C., Morri, M., Mostafa, M. A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, C., Newman Holme, D., Newton, N. T., Thao, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, J., Oehlschlager, T., Ohnuki, A., Olinto, V. M., Olmos Gilbaja, M., Ortiz, F., Ortolani, S., Ostapchenko, L., Otero, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, S., Pastor, M., Patel, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, P. N., Diep, P. N., Dong, P. T., Nhung, A., Pichel, R., Piegaia, T., Pierog, M., Pimenta, T., Pinto, V., Pirronello, O., Pisanti, M., Platino, J., Pochon, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, A., Redondo, S., Reucroft, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, C., Riviere, V., Rizi, M., Robert, C., Robledo, G., Rodriguez, M. D., Rodriguez Fria, J., Rodriguezmartino, J., Rodriguez Rojo, I., Rodriguez Cabo, 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, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, V., Scherini, H., Schieler, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, G., Sigl, N., Smetniansky De Grande, A., Smialkowski, R., Smida, A. G. K., Smith, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swainc, Z., Szadkowski, J., Takahashi, A., Tamashiro, A., Tamburro, O., Tascau, R., Tcaciuc, D., Thoma, R., Ticon, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, B., Tome', A., Tonachini, I., Torre, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urbana, 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., Ventersc, V., Verzi, M., Videl, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlber, O., Wainber, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, H., Wua, B., Wundheiler, T., Yamamoto, P., Younk, E., Zasb, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Ziolkowski, 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), Laboratory for Astroparticle Physics, University of Nova Gorica, 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, Aramo, Carla, DELLA SELVA, Angelo, Miele, Gennaro, Pisanti, Ofelia, Valore, Laura, Auger, Collaboration, KVI - Center for Advanced Radiation Technology, and Research unit Astroparticle Physics

Subjects
Active galactic nucleus, [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, particle source [cosmic radiation], Cosmic background radiation, FOS: Physical sciences, Flux, Osservatorio Pierre Auger, Cosmic ray, anisotropy, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Raggi cosmici, 0103 physical sciences, Ultra-high-energy cosmic ray, 010303 astronomy & astrophysics, Background radiation, Nuclei galattivi attivi, Physics, Pierre Auger Observatory, SPECTRUM, Multidisciplinary, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Medicine (all), Settore FIS/01 - Fisica Sperimentale, Astrophysics (astro-ph), angular dependence [cosmic radiation], Astrophysics::Instrumentation and Methods for Astrophysics, Física, Energia ultra alta, Experimental High Energy Physics, ddc:500, Energy (signal processing), experimental results
Abstract

Using data collected at the Pierre Auger Observatory during the past 3.7 years, we demonstrated a correlation between the arrival directions of cosmic rays with energy above ~ 6x10^{19} electron volts and the positions of active galactic nuclei (AGN) lying within ~ 75 megaparsecs. We rejected the hypothesis of an isotropic distribution of these cosmic rays with at least a 99% confidence level from a prescribed a priori test. The correlation we observed is compatible with the hypothesis that the highest energy particles originate from nearby extragalactic sources whose flux has not been substantially reduced by interaction with the cosmic background radiation. AGN or objects having a similar spatial distribution are possible sources., Comment: 22 pages, 2 figures

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20. The Adventure of Science.Benjamin GinzburgThe History of Science and the New Humanism.George SartonScience and First Principles.F. S. C. NorthropThe Logic of Science.Harold R. SmartNumber, the Language of Science.Tobias DantzigStudies in the Literature of Natural Science.Julian M. Drachman

Author

H. Blumer

Subjects
Sociology and Political Science, GEORGE (programming language), Philosophy, Natural science, Social science, Humanism, Adventure, History of science, Classics
Published
1932
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22. Preparatory procedures for videotaped feedback to improve social skills

Author

Craig H. Blumer and J. Regis McNamara

Subjects
Male, Social skills, education, Pedagogy, Applied psychology, Psychotherapy, Group, Humans, Videotape Recording, Female, Interpersonal Relations, Psychology, General Psychology, Feedback
Abstract

Videotaped feedback in conjunction with group approaches which utilized didactic lectures, behavioral problem solving, or group exercises to increase cohesion were compared to ascertain their effectiveness in improving social skills for undergraduates. Self-report, partners' evaluations, and independent observers' ratings indicated that group treatment coupled with feedback nondifferentially improved social skills over time. For undergraduates undergoing brief social skills training, differences in subjects' preparation involving videotape feedback may not produce corresponding differences in subjects' behavior.

Published
1985

24. Viral hepatitis

Author

C, BLACKWELL and H, BLUMER

Subjects
Hepatitis, Viral, Human, Humans, Hepatitis A, Communicable Diseases, Hepatitis
Published
1955

25. Respiratory therapy for seasonal allergic rhinitis and asthma

Author

H, BLUMER, A, LEZNOFF, F, CUA-LIM, P, DELORME, and B, ROSE

Subjects
Adult, Male, Respiratory Therapy, Humans, Pollen, Rhinitis, Allergic, Seasonal, Female, Seasons, Original Articles, Allergens, Rhinitis, Allergic, Asthma
Abstract

Repository therapy with an emulsified antigen preparation for pollen asthma and hay fever was used over the past three years. Overall results indicate that the response in the majority of patients was as good as that obtained with conventional preseasonal or perennial treatment. Reactions were noted in four of the 15 patients so treated during the first year of study, in 25 of 58 patients treated in the second year, and in 11 of 175 treated in the final year. These varied from mild to severe systemic reactions, some of which required hospitalization. With improvement and modification of the technique, such as the administration of the antigen in two injections rather than in a single injection, the incidence and severity of reactions were markedly reduced. The procedure is not without hazard; it requires great care, and initial experience is best obtained in a hospital environment.

Published
1962

33. The Camera as Snowball: France 1918-1927

Author

Ronald H. Blumer

Subjects
Visual Arts and Performing Arts, business.industry, media_common.quotation_subject, Art, Creativity, Visual arts, Individualism, Visual language, Movie theater, Extension (metaphysics), Modern art, Expression (architecture), Plot (narrative), business, media_common
Abstract

One of the most interesting periods in the history of cinema is the last ten years of the silent era. At this time of incredible creativity, cinema, pushed to its technical limits, was searching for its boundaries. The situation in France is of particular interest because of the diverse nature of this exploration. It was here that cinema was just being appreciated as a new means of expression distinct from, and in some ways superior to, the older art forms. What this new means of expression could and could not do had yet to be discovered. Close study of the works of the highly individualistic directors producing films at this time points towards a grouping into schools or movements having common stylistic concerns. The most important of these movements is a group that has been called the Impressionists. This grouping of directors wished to expand the technical virtuosity of the cinema and use it to create a visual language. The spokesman of the school was Louis Delluc and directors included Delluc, Germaine Dulac, Marcel L'Herbier and Abel Gance. These directors were interested not only in technique but in external glitter and decor: They remained completely conventional from the point of view of plot and cinematic construction. After 1923, these directors became commercially popular, unlike their more extreme brothers in the avant garde who wished to turn cinema into an extension of modern art.

Published
1970
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39. 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
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40. Test and analysis of hadronic interaction models with KASCADE event rates

Author

W. Hafemann, T. Antoni, J.R. Hörandel, J. Knapp, H. Bozdog, W.D. Apel, D. Martello, G. Schatz, E. Bollmann, H. J. Gils, Markus Roth, J. Milke, H. Ulrich, J. Engler, J. Wochele, J. Kempa, J.H. Weber, D. Heck, S. Zagromski, P. Matussek, A. Vardanyan, J. Oehlschläger, R. Haeusler, Ashot Chilingarian, J. Wentz, K. Bernlöhr, H.J. Mayer, F. Feßler, H.O. Klages, B. Vulpescu, J. Zabierowski, T. Thouw, M. Risse, P. Doll, H. Blümer, T. Wiegert, Hermann-Josef Mathes, R. Glasstetter, H. Rebel, Kai Daumiller, Karl-Heinz Kampert, M. Petcu, K. Bekk, T. Holst, F. Badea, C. Büttner, D. Mühlenberg, A. Haungs, I.M. Brancus, M., Risse, T., Antoni, W. D., Apel, F., Badea, K., Bekk, K., Bernlohr, H., Blumer, E., Bollmann, H., Bozdog, I. M., Brancu, C., Buttner, A., Chilingarian, K., Daumiller, P., Doll, J., Engler, F., Fessler, H. J., Gil, R., Glasstetter, R., Haeusler, W., Hafemann, A., Haung, D., Heck, J. R., Horandel, T., Holst, K. H., Kampert, J., Kempa, H. O., Klage, J., Knapp, Martello, Daniele, H. J., Mathe, P., Matussek, H. J., Mayer, J., Milke, D., Muhlenberg, J., Oehlschlager, M., Petcu, H., Rebel, M., Roth, G., Schatz, T., Thouw, H., Ulrich, A., Vardanyan, B., Vulpescu, J. H., Weber, J., Wentz, T., Wiegert, J., Wochele, J., Zabierowski, and S., Zagromski

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, KASCADE, biology, Hadron, High Energy Physics::Experiment, Venus, Elasticity (economics), biology.organism_classification, Atomic and Molecular Physics, and Optics, Hadron calorimeter
Abstract

Based on the KASCADE multi-detector system with its large hadron calorimeter and using the CORSIKA simulation program with the implemented high-energy hadronic interaction models QGSJET, VENUS, DPMJET, SIBYLL, and HDPM, a method for the test of models by comparing el ent rates is described. Preliminary results show differences of the model predictions both among each other and when confronted with measurements. The rates are strongly influenced by the inelastic cross sections and the elasticity, especially by the contribution of diffractive dissociation. The discrepancy to measurements at primary energies below similar or equal to 3 (.) 10(13) eV can be reduced by increasing the non-diffractive inelastic cross section.

Published
2001
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41. Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory

Author

B. Rouillé-D'Orfeuil, Paulo J. S. Gonçalves, M. I. Micheletti, J. Kleinfeller, Martina Bohacova, Patrick Allison, M. Ave, M. Gómez Berisso, R. C. Shellard, M.E. Ortiz, J. Sorokin, G. Decerprit, J. Knapp, D. Nitz, Daniel Kuempel, Carlos Escobar, Jan Pękala, A. Cordier, S. Maldera, L. del Peral, A. Creusot, Rúben Conceição, Pascal Lautridou, M. Wommer, Alberto Filevich, Peter Hansen, F. Guarino, John Matthews, P. Brogueira, Mariangela Settimo, A. Chiavassa, Miguel Mostafá, Ivone F. M. Albuquerque, K. B. Barber, A. F. Barbosa, Carla Bleve, L. R. Wiencke, E. Santos, W. J. M. de Mello Junior, S. Gambetta, Peter Buchholz, D. Warner, S. Dagoret-Campagne, J. Rodriguez Martino, van den Ad M Berg, P. Schiffer, S. Schulte, I. Rodriguez-Cabo, Piotr Homola, N. Griffith, R. E. Burton, K. Louedec, R. Piegaia, R. D. Parsons, T. Rossler, M. Szuba, H. Glass, O. Tascau, A. C. Fauth, J. Lozano Bahilo, Segev BenZvi, M. Ambrosio, A. Petrolini, Luis A. Anchordoqui, R. Bruijn, Corbin Covault, Y. Petrov, Geraldina Golup, Alexander Grillo, S. Fliescher, Lino Miramonti, P. Facal San Luis, M. D. Rodríguez-Frías, J. Chauvin, Rossella Caruso, Pietro Oliva, A. Lucero, G. La Rosa, A. Segreto, Günter Sigl, N. Scharf, Marco Aglietta, Carola Dobrigkeit, R. F. Gamarra, H. Schieler, I. Valiño, R. Ulrich, Karl-Heinz Kampert, Antonella Castellina, Carla Bonifazi, Jose A. Bellido, C. L. Williams, H. Bluemer, H. M. Spinka, E. Moreno, Paul Sommers, G. Cataldi, A. Horneffer, P. Petrinca, V. Scherini, N. Phan, C. J.W.P. Timmermans, M. Risse, Radomir Smida, G. Mueller, J. D. Hague, M. De Domenico, Rémi Bardenet, Petr Travnicek, T. Huege, P. Wahrlich, Jaime Rosado, Eun-Joo Ahn, Alan Watson, Darko Veberič, M. L. Díaz Castro, G. Farrar, Jeffrey Brack, Olaf Scholten, E. Kemp, Richard Dallier, A. Nelles, Christopher Morris, Jaime Alvarez-Muñiz, D. Schuster, Maria Rita Coluccia, M. Muenchmeyer, H. Schoorlemmer, Domenico Tegolo, Humberto Ibarguen Salazar, B. García, M. Will, N. T. Thao, B. J. Whelan, Mario Scuderi, Tobias Winchen, G. Parente, A. Italiano, G. Matthiae, R. Cester, J. Alvarez Castillo, Fabian Schmidt, B. Wundheiler, H. R. Marquez Falcon, A. Tamashiro, P. Lebrun, R. López, Karen S. Caballero-Mora, D. Monnier Ragaigne, B. Morales, C. Pfendner, V. de Souza, Gregory R Snow, L. Perrone, D. Maurizio, D. Allard, Jiri Chudoba, A. Smialkowski, K. Link, E. Petermann, D. García Gámez, Miroslav Pech, J. D. Swain, M. G. Winnick, Antonio Bueno, Sergio Pastor, B. Vargas Cárdenas, A. Tapia, A. G. Mariazzi, J. Pallotta, B. Wilczynska, H. Gemmeke, M. Unger, Balázs Kégl, L. Valore, Amin Aminaei, C. Aramo, M. Ludwig, B. Revenu, Martin Erdmann, C. Robledo, A. Haungs, J. L. Harton, Marcos Santander, C. J. Todero Peixoto, C. De Donato, E. J. Quel, Markus Roth, R. Bonino, P. H. Kasper, B. Keilhauer, D. B. Tridapalli, J. Allen, A. D. Supanitsky, Hernán Asorey, N. Palmieri, Heino Falcke, K. Kotera, M. S. Sutherland, A. Insolia, M. Kleifges, D. Zavrtanik, B. Tome, P. Mantsch, J. F. Valdés Galicia, Sasa Micanovic, A. Criss, Maria Giller, J. R. Vázquez, Béatrice Fuchs, G. Navarra, Roger W Clay, S. Jiraskova, M. Hrabovsky, M. Gold, H. Rivera, P. Pieroni, S. J. Sciutto, R. Pesce, N. Krohm, G. Wieczorek, T. Schmidt, C. Macolino, C. Hojvat, D. Kruppke-Hansen, A. Filipcic, Jan Ebr, I. Zaw, Sergio Petrera, K.-H. Becker, C. A. Moura, Vincent Marin, T. Yamamoto, R. Mussa, Brian Fick, J. Oehlschlaeger, J. J. Beatty, F. Arqueros, P. Necesal, F. Ionita, H. Wilczyński, J. K. Kulbartz, M. Avenier, Gualberto Avila, R. M. de Almeida, Ingomar Allekotte, L. Caramete, Silvia Mollerach, Alain Hervé, J. Coppens, M. Pimenta, T. Baecker, L. Nozka, Umberto Cotti, H.O. Klages, I. De Mitri, Marcio Aparecido Muller, G. P. Guedes, H. Dembinski, N. Fazzini, A. Parr, P. T. Nhung, A. Ferrero, J. Schovancova, V. C. Holmes, D. Lebrun, I. Dutan, L. Winders, S. Grebe, Sofia Andringa, G. Tristram, I. C. Mariş, Dusan Mandat, J. Stapleton, D.V. Semikoz, A. Shadkam, Hernan Wahlberg, A. 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Tonachini, Matthias Balzer, A. Denkiewicz, F. Schroeder, F. Montanet, J. C. dos Anjos, C. Riviere, Vincenzo Rizi, S. L. C. Barroso, M. Tueros, D. Martello, M. Ziolkowski, Maria-Teresa Dova, V. Pirronello, Iuri Muniz Pepe, O. Martínez Bravo, Y. Guardincerri, M. Prouza, S. J. De Jong, M. Pontz, Pierre Billoir, D. Thomas, A. Curutiu, P. Abreu, D. Ravignani, J. R. T. de Mello Neto, Peter L. Biermann, T. Karova, Subir Sarkar, A. Gascon, H. Lyberis, D. Melo, A. Schmidt, M. Platino, M. Monasor, Denise Boncioli, V. H. Ponce, D. Pakk Selmi-Dei, C. E. Santo, Francisco J. Blanco, N. Nierstenhoefer, R. Sato, F. Gomez Albarracin, German Ros, S. Navas, J. L. Navarro, Paolo Privitera, P. N. Diep, J. C. Diaz, D. Garcia-Pinto, R. Pelayo, M. Melissas, R. A. Vázquez, D. Nosek, J. L. Kelley, D. K. Tiwari, B. M. Baughman, N. Pacheco, F. Sanchez, M. S. A. B. Leão, A. Chou, F. Sarazin, Marc Weber, J. Parrisius, M. Palatka, P. W. Younk, G. Marsella, R. M. Kieckhafer, Juan Moreno, A. Weindl, J. Rautenberg, Kreso Kadija, O. Wainberg, W. C. Brown, V. Verzi, Ernesto Arganda, C. E. Fracchiolla, D. D'Urso, Corinne Berat, E. Parizot, W. Tkaczyk, A. Lemiere, C. Meurer, B. R. Becker, E. Trovato, Diego Harari, C. Ruehle, E. M. Santos, Ralph Engel, Bruce R. Dawson, D. H. Koang, P.O. Mazur, J. Ridky, T. Susa, A. Stutz, O. Kroemer, Jose Chinellato, T. Suomijaervi, S. Mueller, A. Dorofeev, A. Letessier-Selvon, L. Villaseñor, L. Martin, H. J. Mathes, Lorenzo Cazon, G. De La Vega, J. Rodriguez Rojo, Enrique Zas, M. Videla, C. Di Giulio, G. Salina, Fernando Contreras, Olivier Deligny, M. Zavrtanik, A. Lopez Agueera, U. Giaccari, Petr Schovanek, Guarino, Fausto, D'Urso, Domenico, Valore, Laura, M., Ambrosio, Aramo, Carla, The Pierre Auger, Collaboration, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), 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), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des 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Physique des Particules du CNRS (IN2P3)-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 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), 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-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), 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), 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, Abreu, P., Aglietta, M., Ahn, E., Albuquerque, I., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez Castillo, J., Alvarez-Muiz, J., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Antičić, T., Aramo, C., Arganda, E., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Bäcker, T., Balzer, M., Barber, K., Barbosa, A., Bardenet, R., Barroso, S., Baughman, B., Beatty, J., Becker, B., Becker, K., Bellido, J., Benzvi, S., Berat, C., Bertou, X., Biermann, P., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Bl̈mer, H., Boáčhová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Coluccia, M., Conceio, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Dasso, S., Daumiller, K., Dawson, B., De Almeida, R., De Domenico, M., De Donato, C., De Jong, S., De La Vega, G., De Mello Junior, W., De Mello Neto, J., De Mitri, I., De Souza, V., De Vries, K., Decerprit, G., Del Peral, L., Deligny, O., Dembinski, H., Denkiewicz, A., Di Giulio, C., Diaz, J., Daz Castro, M., Diep, P., Dobrigkeit, C., D'Olivo, J., Dong, P., Dorofeev, A., Dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Etchegoyen, A., Facal San Luis, P., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferguson, A., Ferrero, A., Fick, B., Filevich, A., Filipi, A., Fliescher, S., Fracchiolla, C., Fraenkel, E., Frhlich, U., Fuchs, B., Gamarra, R., Gambetta, S., Garca, B., Garca Gmez, D., Garcia-Pinto, D., Gascon, A., Gemmeke, H., Gesterling, K., Ghia, P., Giaccari, U., Giller, M., Glass, H., Gold, M., Golup, G., Gomez Albarracin, F., Gmez Berisso, M., Gonalves, P., Gonzalez, D., Gonzalez, J., Gookin, B., Gra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Griffith, N., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Hague, J., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Holmes, V., Homola, P., Hrandel, J., Horneffer, A., Hrabovsk, M., Huege, T., Insolia, A., Ionita, F., Italiano, A., Jiraskova, S., Kadija, K., Kampert, K., Karhan, P., Karova, T., Kasper, P., Kgl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleifges, M., Kleinfeller, J., Knapp, J., Koang, D., Kotera, K., Krohm, N., Krmer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, J., Kunka, N., La Rosa, G., Lachaud, C., Lautridou, P., Leo, M., Lebrun, D., Lebrun, P., Leigui De Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., Lpez, R., Lopez Agera, A., Louedec, K., Lozano Bahilo, J., Lucero, A., Ludwig, M., Lyberis, H., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martin, L., Martnez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Mertsch, P., Meurer, C., Mićanović, S., Micheletti, M., Miller, W., Miramonti, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostaf, M., Moura, C., Mueller, S., Muller, M., Mller, G., Mnchmeyer, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nelles, A., Nhung, P., Nierstenhoefer, N., Nitz, D., Nosek, D., Noka, L., Nyklicek, M., Oehlschlger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parra, A., Parrisius, J., Parsons, R., Pastor, S., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Phan, N., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Risse, M., Ristori, P., Rivera, H., Rivire, C., Rizi, V., Robledo, C., Rodrigues De Carvalho, W., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodrguez-Fras, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouill-D'Orfeuil, B., Roulet, E., Rovero, A., Rhle, C., Salamida, F., Salazar, H., Salina, G., Snchez, F., Santander, M., Santo, C., Santos, E., Sarazin, F., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Schmidt, T., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovnek, P., Schroeder, F., Schulte, S., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Semikoz, D., Settimo, M., Shadkam, A., Shellard, R., Sidelnik, I., Sigl, G., Śmiakowski, A., Mda, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijrvi, T., Supanitsky, A., Ua, T., Sutherland, M., Swain, J., Szadkowski, Z., Szuba, M., Tamashiro, A., Tapia, A., Tacu, O., Tcaciuc, R., Tegolo, D., Thao, N., Thomas, D., Tiffenberg, J., Timmermans, C., Tiwari, D., Tkaczyk, W., Todero Peixoto, C., Tom, B., Tonachini, A., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valds Galicia, J., Valio, I., Valore, L., Van Den Berg, A., Vargas Crdenas, B., Vzquez, J., Vzquez, R., Veberi, D., Verzi, V., Videla, M., Villaseor, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Warner, D., Watson, A., Weber, M., Weidenhaupt, K., Weindl, A., Westerhoff, S., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyska, B., Wilczyski, H., Will, M., Williams, C., Winchen, T., Winders, L., Winnick, M., Wommer, M., Wundheiler, B., Yamamoto, T., Younk, P., Yuan, G., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Ziolkowski, M., J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, E., Arganda, S., Argir, K., Arisaka, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, A., Bacher, T., Backer, D., Badagnani, K. B., Barber, A. F., Barbosa, H. J. M., Barbosa, N., Barenthien, S. L. C., Barroso, B., Baughman, P., Bauleo, J. J., Beatty, T., Beau, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, C., Bleve, H., Blumer, M., Bohacova, E., Bollmann, H., Bolz, C., Bonifazi, R., Bonino, N., Borodai, F., Bracci, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, D., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, J., Castro, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordero, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J. W., Cronin, J., Cuautle, A., Curutiu, S., Dagoret Campagne, R., Dallier, F., Daudo, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, P. N., Diep, C., Dobrigkeit, J. C., D’Olivo, P. N., Dong, D., Dornic, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. A., Du Vernoi, R., Engel, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, F., Ferrer, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, R., Fonte, C. E., Fracchiolla, E. D., Fraenkel, W., Fulgione, R. F., Gama rra, S., Gambetta, B., Garcıa, D., Garcıa Gamez, D., Garcia Pinto, X., Garrido, H., Geenen, G., Gelmini, H., Gemmekeai, P. L., Ghia, U., Giaccari, K., Gibb, M., Giller, J., Gitto, H., Gla, L. M., Goggin, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gomez Berisso, P. F., Gomez Vitale, P., Goncalve, M., Goncalves do Amaral, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, E., Grashorn, V., Grassi, S., Grebe, M., Grigat, A. F., Grillo, J., Grygar, Y., Guardincerri, N., Guardone, C., Guerard, F., Guarino, R., Gumbsheimer, G. P., Guede, J., Gutierrez, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, A., Haung, M. D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, G., Hofman, J. R., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, H., Hucker, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Ke, B., Keilhauer, E., Kempq, H., Kern, R. M., Kieckhafer, H. O., Klage, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Kopmann, A., Krieger, O., Kromer, D., Kruppke Hansen, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguide Oliveira, A., Lemiere, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, K., Louedec, J., Lozano Bahilo, A., Lucero, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, M., Malek, D., Mandat, P., Mantsch, F., Marchetto, A. G., Mariazzi, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewen, R. R., Mcneil, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, J. C., Moreno, C., Morri, M., Mostafa, C. A., Moura, M., Mucchi, S., Mueller, M. . A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, F., Nerling, C., Newman Holme, D., Newton, P. T., Nhung, D., Nicotra, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V. M., Olmos Gilbaja, M., Ortiz, F., Ortolani, B., Oßwald, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, S., Pastor, M., Patel, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, A., Pichel, R., Piegaia, T., Pierog, M., Pimenta, T., Pinto, V., Pirronello, O., Pisanti, M., Platino, J., Pochon, V. H., Ponce, M., Pontz, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, G., Raia, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, H. C., Rei, S., Reucroft, B., Revenu, F. A. S., Rezendem, J., Ridky, S., Riggi, M., Risse, C., Riviere, V., Rizi, C., Robledo, M. D., Robert, G., Rodriguez, J., Ro driguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodrıguez Fria, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouille d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, G., Schleif, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, G., Sequiero, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, A., Smiakowski, R., Smıda, A. G. K., Smith, B. E., Smith, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, T., Tarutina, O., Tascau, R., Tcaciuc, D., Tcherniakhovski, N. T., Thao, D., Thoma, R., Ticona, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, B., Tome, A., Tonachini, I., Torre, P., Trapani, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, V., Tuci, M., Tuero, E., Tusi, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, J. R., Vazquez, R. A., Vazquez, D., Veberic, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, G., Vitali, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, S., Westerhoff, B. J., Whelan, N., Wild, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, G., Worner, H., Wuac, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M. Z. i. o. l. k. o. w. s. k., I., 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), 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), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, KVI - Center for Advanced Radiation Technology, and Research unit Astroparticle Physics

Subjects
Source code, Astronomy, computer.software_genre, 01 natural sciences, Observatory, Auger experiment, Radio detection, SOFTWARES (ANÁLISE), Instrumentation, cosmic rays, radio detection, analysis software, detector simulation, media_common, Physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Computer hardware, Nuclear and High Energy Physics, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Analysis software, Detector simulation, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmic Ray, Nuclear physics, RAY AIR-SHOWERS, 0103 physical sciences, DETECTORS, Instrumentation (computer programming), 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cosmic rays, Ciencias Exactas, Nuclear and High Energy Physic, Pierre Auger Observatory, 010308 nuclear & particles physics, business.industry, Física, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Software framework, Air shower, Experimental High Energy Physics, EMISSION, business, computer, MONTE-CARLO SIMULATIONS
Abstract

The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic ray air showers. As AERA performs ‘‘radio- hybrid’’ measurements of air shower radio emission in coincidence with the surface particle detectors and fluorescence telescopes of the Pierre Auger Observatory, the radio analysis functionality had to be incorporated in the existing hybrid analysis solutions for fluorescence and surface detector data. This goal has been achieved in a natural way by extending the existing Auger Offline software framework with radio functionality. In this article, we lay out the design, highlights and features of the radio extension implemented in the Auger Offline framework. Its functionality has achieved a high degree of sophistication and offers advanced features such as vectorial reconstruction of the electric field, advanced signal processing algorithms, a transparent and efficient handling of FFTs, a very detailed simulation of detector effects, and the read-in of multiple data formats including data from various radio simulation codes. The source code of this radio functionality can be made available to interested parties on request., La lista completa de autores puede consultarse en el documento o en la página web de la revista., Facultad de Ciencias Exactas

Published
2011
Full Text
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42. Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory

Author

D. Melo, M. Videla, A. F. Barbosa, M. Ave, I. Torres, J. Matthews, L. Caramete, D. Pakk Selmi-Dei, R. Sato, Tonia M. Venters, B. Connolly, R. E. Burton, Eun-Joo Ahn, C. E. Fracchiolla, G. Farrar, R. R. McNeil, B. Rouillé-D’Orfeuil, Ivor Fleck, C. Morello, W. Fulgione, Fabrizio Ortolani, Peter L. Biermann, M. Kaducak, Paolo Privitera, Jose Chinellato, Pedro Brogueira, G. Yuan, Matias Tueros, H. Dembinski, J. L. Navarro, Daniel Gonzalez, A. Schmidt, Ofelia Pisanti, Christopher Morris, Dariusz Gora, M. Gold, T. Suomijärvi, J. Pallotta, E. J. Quel, A. Tonachini, R. M. de Almeida, B. J. Whelan, D. Maurizio, J. C. Diaz, Markus Risse, U. Cotti, A. Letessier-Selvon, Lorenzo Cazon, Jaime Alvarez-Muñiz, D. Schuster, M. Gonçalves do Amaral, L. Nožka, R. Ticona, J. Pochon, C. Aramo, Pham Ngoc Diep, Paulo J. S. Gonçalves, B. Wilczynska, F. Sánchez, Iván Sidelnik, H. Wilczyński, E. Strazzeri, G. Hebrero, Heino Falcke, I. Valiño, S. Grebe, S. Navas, M.E. Ortiz, G. Wieczorek, J. G. Gonzalez, J. Knapp, A. Lopez Agüera, R. Bruijn, A. Krieger, M. Melissas, B. Wundheiler, A. Gorgi, Y. Guardincerri, H. Wu, B. Keilhauer, H. Spinka, R. Squartini, G. Tristram, B. L. Lago, R. Mussa, C. Aguirre, Alberto Filevich, Maria-Teresa Dova, T. Paul, R. A. Vázquez, Marco Iarlori, T. Schmidt, S. Reucroft, Esteban Roulet, Peter Hansen, Olivier Deligny, A. Filipčič, D. B. Tridapalli, J. Allen, A. Criss, S. J. Sciutto, R. Pesce, F. Guarino, Peter Buchholz, M. Pontz, B. Tome, V. Van Elewyck, D. D'Urso, J. J. Beatty, Corinne Berat, M. Giller, A. Della Selva, F. Sarazin, J. Coppens, E. Menichetti, John G. Lee, S. J. De Jong, E. Parizot, C. E. Santo, Ralf Ulrich, H. Glass, P. T. Nhung, A. Ferrero, N. Pacheco, N. Fazzini, S. Petrera, Marco Aglietta, Antonio Velarde, G. P. Guedes, F. Arneodo, D. Allard, G. Medina-Tanco, W. Tkaczyk, M. McEwen, Pierre Billoir, D. Thomas, S. Jiraskova, B. M. Baughman, D. Nitz, A. C. Fauth, M. C. Maccarone, Ioana Codrina Maris, B. Revenu, A. Curutiu, Rodrigo Pelayo, S. Coutu, D. Nosek, C. Bonifazi, A. Lemiere, D. Dornic, A. Chiavassa, K. B. Barber, L. del Peral, Jose A. Bellido, B. R. Becker, A. Chou, E. Trovato, A. F. Grillo, E. Colombo, Julien Aublin, Juan Carlos D'Olivo, T. Pierog, O. Blanch-Bigas, M. Palatka, D. Harari, Matthias Leuthold, P. W. Younk, B. E. Smith, Ralph Engel, L. R. Wiencke, R. Meyhandan, W. J. M. de Mello Junior, D. H. Koang, E. Petermann, Bruce Rafael Mellado Garcia, Jaime Rosado, D. García Gámez, Miroslav Pech, S. Riggi, S. Westerhoff, J. Ridky, J. Rodriguez Martino, J. Petrovic, Osvaldo Catalano, A. Menshikov, Dusan Mandat, R. Cester, E. M. Santos, Tristan Beau, A. Stutz, J. Schovancova, S. Gambetta, Michael Urban, Piera Luisa Ghia, Subir Sarkar, C. Lachaud, Alexander Kusenko, V. Verzi, M. Patel, J. Pȩkala, B. Morales, T. Asch, M. S. Sutherland, L. Perrone, J. Chauvin, A. Segreto, Bruce R. Dawson, Tim Huege, P.O. Mazur, German Ros, A. Tamburro, O. Taşcǎu, J. R. T. de Mello Neto, N. Scharf, Hernan Wahlberg, Daniel Omar Badagnani, F. Salamida, A. Bellétoile, S. Mueller, G. Matthiae, Antonio Bueno, R. Piegaia, A. Smialkowski, Radomir Smida, Miroslav Hrabovský, T. Karova, Francesc Ferrer, Sofia Andringa, J. D. Swain, A. Haungs, E. D. Fraenkel, C. Delle Fratte, E. Kemp, Serguei Vorobiov, Sergio Pastor, A. Tamashiro, M. Ambrosio, A. Petrolini, M. Zavrtanik, N. Nierstenhoefer, M. Monasor, G. Rodriguez, M. G. Winnick, D. Monnier Ragaigne, S. Harmsma, V. M. Olmos-Gilbaja, Marcos Santander, J. L. Harton, L. Villaseñor, C. Pfendner, M. Prouza, A. Anzalone, Gualberto Avila, V. de Souza, P. Bauleo, A. Insolia, M. Kleifges, D. Zavrtanik, P. Mantsch, F. A. S. Rezende, Z. Szadkowski, I. Allekotte, P. Abreu, G. De La Vega, A. Horneffer, P. Petrinca, Angela V. Olinto, D. Tcherniakhovski, D. Ravignani, H. Schoorlemmer, J. Rodriguez Rojo, K. Arisaka, C. Macolino, J. Oehlschläger, Enrique Zas, A. Dorofeev, C. Di Giulio, A. C. Rovero, C. Bleve, Fernando Contreras, J. Abraham, C. J. Todero Peixoto, Vincenzo Rizi, Carola Dobrigkeit, R. F. Gamarra, D. Martello, U. Giaccari, M. Ziolkowski, P. Wahrlich, Silvia Mollerach, O. Martínez Bravo, V. Tuci, Alan Watson, Balázs Kégl, A. D. Supanitsky, F. Ionita, M. Platino, Petr Schovanek, Francisco J. Blanco, F. Gomez Albarracin, V. Scherini, J. Chye, J. W. Cronin, D. Kruppke, Marcio Aparecido Muller, G. Golup, N. Kunka, José Eduardo Martinez, J. A.J. Matthews, Xavier Bertou, R. Knapik, Pedro Assis, A. Etchegoyen, Javier Tiffenberg, Luis A. Anchordoqui, M. D. Healy, Petr Travnicek, A. Italiano, Graciela B. Gelmini, J. Lozano Bahilo, Segev BenZvi, J. Kleinfeller, Mariangela Settimo, Martina Bohacova, Patrick Allison, J. Sorokin, A. G. Mariazzi, Corbin Covault, Daniel Kuempel, Y. Petrov, C. Robledo, H. Blümer, Carlos Escobar, A. Creusot, S. Fliescher, Rossella Caruso, A. Lucero, G. La Rosa, Paul Sommers, Jörg R. Hörandel, Piotr Homola, P. Facal San Luis, A. Cordier, S. Maldera, I. Lhenry-Yvon, Lino Miramonti, V. C. Holmes, D. Lebrun, Warner A. Miller, I. Dutan, P. Gouffon, P. N. Dong, O. Krömer, M. D. Rodríguez-Frías, J. D. Hague, L. Valore, Mario Scuderi, N. T. Thao, D. Warner, M. De Domenico, P. Lebrun, R. López, Karen S. Caballero-Mora, J. Gutiérrez, Charles Timmermans, Martin Erdmann, Lisa M. Goggin, I. Zaw, Roger W Clay, T. Bäcker, V. H. Ponce, K.-H. Becker, M. Pimenta, R. Luna García, Jiri Chudoba, Nicolás G. Busca, M. I. Micheletti, Gaetano Salina, C. Riviere, F. Suarez, Thomas Hebbeker, G. Parente, A.M. van den Berg, K. Payet, Darko Veberič, V. Halenka, N. Smetniansky De Grande, H. R. Marquez Falcon, F. Arqueros, C. Wileman, P. Necesal, V. Pirronello, Arnulfo Zepeda, G. Decerprit, Miguel Mostafá, Iuri Muniz Pepe, S. Dagoret-Campagne, R. Bonino, Rúben Conceição, Beatriz B. Siffert, P. Schiffer, P. Bernardini, A. Pichel, Hernán Gonzalo Asorey, C. Hojvat, S. Parlati, S. Schulte, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, H. Schieler, Karl-Heinz Kampert, Antonella Castellina, H.O. Klages, D. Newton, C. De Donato, G. Navarra, F. Schüssler, S. L.C. Barroso, Brian Fick, Hermann-Josef Mathes, H. Gemmeke, Wagner Carvalho, A. Redondo, D.V. Semikoz, Kai Daumiller, M. Grigat, M. Unger, M. Hussain, Fabian Schmidt, Markus Roth, T. Tarutina, M. Gómez Berisso, R. C. Shellard, Lukas Nellen, I. Rodriguez-Cabo, J. F. Valdés Galicia, X. Garrido, I. De Mitri, Dieter Heck, M. A. Leigui de Oliveira, R. Tcaciuc, F. Schroeder, F. Montanet, J. C. dos Anjos, Michael DuVernois, L. Voyvodic, D. Garcia-Pinto, T. Pinto, Gregory R Snow, P. H. Kasper, M. S. A. B. Leão, Vasiliki Pavlidou, R. M. Kieckhafer, Juan Moreno, J. Rautenberg, O. Wainberg, Stefano Argiro, Catherine Newman-Holmes, W. C. Brown, Gennaro Miele, 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), 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), 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 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), 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), 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), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - 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J., Ahn, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, S., Argiro, K., Arisaka, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, K. B., Barber, A. F., Barbosa, S. L. C., Barroso, B., Baughman, P., Bauleo, J. J., Beatty, T., Beau, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, Bernardini, Paolo, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, C., Bleve, H., Blumer, M., Bohacova, C., Bonifazi, R., Bonino, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, O., Catalano, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, J., Chye, R. 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D., Rodrıguez Frıa, G., Ro, J., Rosado, M., Roth, B., Rouille d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, N., Smetniansky De Grande, A., Smiałkowski, R., Smıda, B. E., Smith, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, T., Tarutina, O., Tascau, R., Tcaciuc, D., Tcherniakhovski, N. T., Thao, D., Thoma, R., Ticona, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. 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Subjects
ACTIVE GALACTIC NUCLEI, ASTROPHYSICS, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Nuclear and High Energy Physics, Active galactic nucleus, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, PROPAGATION, Astrophysics, 7. Clean energy, 01 natural sciences, Lepton, Spectral line, Settore FIS/04 - Fisica Nucleare e Subnucleare, Auger, SEARCH, Tau neutrino, 0103 physical sciences, OSCILLATIONS, 010306 general physics, Ciencias Exactas, High Energy Astrophysical Phenomena (astro-ph.HE), AIR-SHOWERS, Pierre Auger Observatory, Physics, SPECTRUM, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Física, ultrahigh energy cosmic rays, tau neutrinos, Diffuse flux, PERFORMANCE, COSMIC-RAYS, cosmic radiation, 13. Climate action, TELESCOPES, High Energy Physics::Experiment, Neutrino, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Data collected at the Pierre Auger Observatory are used to establish an upper limit on the diffuse flux of tau neutrinos in the cosmic radiation. Earth-skimming ντ may interact in the Earth's crust and produce a τ lepton by means of charged-current interactions. The τ lepton may emerge from the Earth and decay in the atmosphere to produce a nearly horizontal shower with a typical signature, a persistent electromagnetic component even at very large atmospheric depths. The search procedure to select events induced by τ decays against the background of normal showers induced by cosmic rays is described. The method used to compute the exposure for a detector continuously growing with time is detailed. Systematic uncertainties in the exposure from the detector, the analysis, and the involved physics are discussed. No τ neutrino candidates have been found. For neutrinos in the energy range 2 × 10¹⁷ eV < Eν < 2 × 10¹⁹ eV, assuming a diffuse spectrum of the form E⁻²ν, data collected between 1 January 2004 and 30 April 2008 yield a 90% confidence-level upper limit of E²νdNντ / dEν < 9 × 10⁻⁸ GeV cm⁻² s⁻¹ sr⁻¹., La lista completa de autores que integran el documento puede consultarse en el archivo., Facultad de Ciencias Exactas, Instituto de Física La Plata

Published
2009
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43. Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei

Author

A. Krieger, A. Curutiu, A. Della Selva, C. Grunfeld, J. Pallotta, E. J. Quel, M. Ortiz, Antoine Letessier-Selvon, M. D. Healy, Martina Bohacova, Patrick Allison, J. Sorokin, Graciela B. Gelmini, John Swain, Segev BenZvi, A. Creusot, A. G. K. Smith, A. Tamburro, T. Karova, Corbin Covault, T. Bergmann, S. Westerhoff, C. E. Fracchiolla, M. D. Rodriguez-Frias, P. Bernardini, R. R. McNeil, Alexander Schmidt, I. Valiño, P. Facal San Luis, L. Caramete, M. Gómez Berisso, M. Gonçalves do Amaral, Y. Petrov, Geraldina Golup, Alexander Grillo, R. C. Shellard, R. Mussa, M. Zavrtanik, Warner A. Miller, A. Lopez Agüera, J. Oehlschlaeger, K. Arisaka, H. Gemmeke, E. Menichetti, Jeffrey Brack, Olaf Scholten, Christopher Morris, Fred Sarazin, Lukas Nellen, R. López, V. Verzi, Peter Hansen, T. Yamamoto, Piotr Homola, E. Armengaud, Humberto Ibarguen Salazar, J. R. T. de Mello Neto, R. M. de Almeida, Ivor Fleck, J. Gutiérrez, Jaime Alvarez-Muñiz, I. Rodriguez-Cabo, Peter Buchholz, R. Gómez Herrero, P. Petrinca, D. Maurizio, P. T. Nhung, M. I. Micheletti, F. Schmidt, Tanguy Pierog, P. Blasi, D. Thomas, C. Berat, B. Morales, Matias Tueros, M. Videla, C. Wileman, Gaetano Salina, C. Riviere, G. Cataldi, Rossella Caruso, H. Glass, D. Garcia Gaimez, A. Tonachini, C. Aramo, F. Arneodo, Zbigniew Szadkowski, G. Hebrero, Darko Veberič, M. Settimo, A. Gorgi, A. Filevich, Marco Aglietta, H. Bluemer, H. M. Spinka, J. S. Díaz, Petr Travnicek, N. Smetniansky De Grande, D. Allard, J. Pochon, X. Garrido, J. Chauvin, Antonio Insolia, Juan Carlos D'Olivo, Esteban Roulet, C. De Donato, A. Zech, W. Fulgione, Rodrigo Pelayo, Petr Schovanek, L. del Peral, D. Lebrun, Osvaldo Catalano, A. Italiano, Miroslav Palatka, O. Wainberg, M. Prouza, J. Rodriguez Rojo, Bianca Keilhauer, S. Ferry, T. Suomijarvi, F. Schuessler, A. Smialkowski, Carla Bonifazi, Jose A. Bellido, I. Dutan, Matthias Kleifges, C. Di Giulio, Enrique Zas, Carlos Hojvat, Ernesto Kemp, D. Barnhill, Piera Luisa Ghia, M. Larlori, Miroslav Pech, J. Allen, I. M. Pepe, Maria-Teresa Dova, M. Patel, Balázs Kégl, T. Hauschildt, G. Navarra, Pham Ngoc Diep, N. G. Busca, T. Baecker, Markus Roth, Jaime Rosado, S. Navas, A. C. Roverok, M. Monasor, Jan Ridky, Germano Guedes, L. Perrone, J. Takahashi, R. Luna García, Alberto Etchegoyen, P. Gouffon, Olivier Deligny, Hernán Asorey, F. Salamida, H. Wu, Fausto Guarino, R. Cester, M. S. Gold, J. Rautenberg, O. Pisanti, T. Ohnuki, C. Robledo, Heino Falcke, A. Segreto, Fernando Contreras, M. S. Sutherland, D. Garcia-Pinto, Brian Fick, Danilo Zavrtanik, N. Pacheco, Paul Sommers, W. J. M. de Mello, F. Ionita, Luis N. Epele, A. Filipcic, T. Venters, Matthias Leuthold, S. J. de Jong Bg, Paulo J. S. Gonçalves, Francesc Ferrer, Sofia Andringa, Radomir Smida, D. Dornic, P. N. Dong, J. F. Valdés Galicia, C. Macolino, A. Cordier, Antonio Velarde, Miguel Mostafá, A. K. Tripathi, G. Wieczorek, Ricardo Piegaia, Gregory R Snow, S. Vorobiov, C. Delle Fratte, D. Melo, D. Nosek, A. Meli, Daniel Omar Badagnani, S. Parlati, I. Torres, J. Martinez, T. Schmidt, J. D. Hague, M. Hussain, Sergio Petrera, L. Valore, S. Dagoret-Campagne, C. E. Santo, S. Coutu, A. M. van den Berg, Norberto Fazzini, A. Chou, R. Meyhandan, Marcio Aparecido Muller, H. R. Marquez Falcon, D. Semikoz, S. Reucroft, R. Knapik, G. La Rosa, P. Abreu, Jan Pękala, Hans Klages, John K. Lee, Carola Dobrigkeit, M. Scuderi, J. Rodríguez Martino, A. Anzalone, Gustavo Medina-Tanco, O. Tascau, Karen S. Caballero-Mora, V. de Souza, E. Colombo, L. R. Wiencke, J. G. Gonzalezc, C. Meurer, Ralf Ulrich, V. H. Koanga, S. Ostapchenko, Valerio Pirronello, B. Wundheiler, D. Mandatat, G. Parente, B. E. Smith, J. Hoerandel, Thomas Hebbeker, M. Horvat, Glennys R. Farrar, M. Gonzalez, Paul M. Mantsch, V. M. Olmos-Gilbaja, O. Kroemer, Vasiliki Pavlidou, Luis A. Anchordoqui, Subir Sarkar, J. Chye, G. Miele, B. Wilczynska, Jose Chinellato, R. Sato, Anderson Fauth, R. M. Kieckhafer, L. Villaseñor, Juan Moreno, Alexander Kusenko, A. F. Barbosa, J. Knapp, B. S. Atulugama, Alan Watson, A. Horneffer, H. Schieler, Jonny Kleinfeller, Beatriz García, D. Tscherniakhovski, German Ros, M. Platino, J. W. Cronin, A. Tamashiro, Arnulfo Zepeda, Karl-Heinz Kampert, Roger W Clay, Antonella Castellina, M. Mcewen, M. G. Winnick, Dariusz Gora, Antonio Bueno, Sergio Pastor, Hermann-Josef Mathes, E. Parizot, P. Younk, Stefano Argiro, Catherine Newman-Holmes, Xavier Bertou, M. Roberts, Thomas McCauley, Daniel Kuempel, R. E. Burton, A. Criss, Maria Giller, W. C. Brown, Rúben Conceição, Carlos Escobar, Wagner Carvalho, M. E. Mancenido, A. Haungs, Gualberto Avila, Francisco J. Blanco, D. D'Urso, P. Bauleo, Lorenzo Cazon, A. Menschikov, Beatriz B. Siffert, A. Redondo, Pedro Assis, N. Nierstenhoefer, I. De Mitri, S. Maldera, Dieter Heck, P. Brogueira, L. Otero, G. Mancarella, V. C. Holmes, Ingomar Allekotte, R. Ticona, Martin Urban, J. C. Hamilton, Kai Daumiller, F. Gomez Albarracin, V. Scherini, P. Billoir, Angela V. Olinto, D. V. Camin, Sergio Sciutto, D. Newton, Javier Tiffenberg, N. T. Thao, D. Warner, V. Van Elewyck, G. Rodriguez, Ioana Codrina Maris, H. Dembinski, F. A. S. Rezende, Alejandro Luis Veiga, M. A. Leigui de Oliveira, R. Tcaciuc, Ricardo Vázquez, R. Squartini, John L. Harton, B. R. Becker, Federico Suarez, F. Montanet, J. C. dos Anjos, J. Abraham, T. Paul, E. Strazzeri, T. Asch, Michael DuVernois, Ralph Engel, M. Unger, Miroslav Hrabovsky, L. Voyvodic, Henryk Wilczyński, Tristan Beau, A. Stutz, J. Matthews, M. Ave, B. Connolly, D. Monnier Ragaigne, Ph. Lebrun, Heiko Geenen, C. J.W.P. Timmermans, Daniel Gonzalez, Guenter Sigl, M. Pimenta, Pierre Sokolsky, C. Bleve, C. Lachaud, S. Riggi, C. J. Todero Peixoto, G. De La Vega, S. Harmsma, Vincenzo Rizi, B. Rouillé-D’Orfeuil, C. Morello, K. Payet, M. Ziolkowski, S. L. C. Barroso, R. Bonino, O. Martínez Bravo, V. Grassi, Fabrizio Ortolani, Peter L. Biermann, J. J. Lozano Bahilo, Paolo Privitera, Y. Guardincerri, D. Pakk Selmi-Dei, M. C. Maccarone, T. Pinto, Libor Nozka, K. H. Becker, A. G. Mariazzi, A. D. Supanitsky, J. J. Beatty, Norbert Kunka, A. Dorofeev, D. Nitz, Silvia Mollerach, J. Coppens, G. Matthiae, M. Ambrosio, Markus Risse, U. Cotti, B. Revenu, Julien Aublin, D. Martello, F. Sánchez, Iván Sidelnik, I. Lhenry-Yvon, H. Wahlberg, Marcos Santander, B. Tome, Peter Mazur, G. Tristram, B. L. Lago, C. Aguirre, A. Pichel, Bei Cai, W. Tkaczyk, Diego Harari, E. M. Santos, Bruce R. Dawson, Tim Huege, J. L. Navarro, A. Chiavassa, M. Kaducak, M. C. Medina, O. Blanch-Bigas, F. Arqueros, P. Necesal, 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), APC - Cosmologie, 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 - 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, J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, S., Argiro', K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, B. 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F., Grillo, C., Grunfeld, Y., Guardincerri, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hauschildt, M. D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, M., Kaducak, K. H., Kampert, T., Karova, B., Kegl, B., Keilhauer, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, M. A., Leigui de Oliveira, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, J., Lozano Bahilo, R., Luna Garcia, M. C., Maccarone, C., Macolino, S., Maldera, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. 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M., Olmos Gilbaja, M., Ortiz, F., Ortolani, S., Ostapchenko, L., Otero, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, S., Pastor, M., Patel, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, P. N., Diep, P. N., Dong, P. T., Nhung, A., Pichel, R., Piegaia, T., Pierog, M., Pimenta, T., Pinto, V., Pirronello, O., Pisanti, M., Platino, J., Pochon, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, A., Redondo, S., Reucroft, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, C., Riviere, V., Rizi, M., Robert, C., Robledo, G., Rodriguez, M. D., Rodriguez Fria, J., Rodriguezmartino, J., Rodriguez Rojo, I., Rodriguez Cabo, 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, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, V., Scherini, H., Schieler, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, G., Sigl, N., Smetniansky De Grande, A., Smialkowski, R., Smida, A. G. K., Smith, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swainc, Z., Szadkowski, J., Takahashi, A., Tamashiro, A., Tamburro, O., Tascau, R., Tcaciuc, D., Thoma, R., Ticon, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, B., Tome', A., Tonachini, I., Torre, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urbana, 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., Ventersc, V., Verzi, M., Videl, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlber, O., Wainber, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, H., Wua, B., Wundheiler, T., Yamamoto, P., Younk, E., Zasb, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Ziolkowski, 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, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, 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, Guarino, Fausto, D'Urso, Domenico, Aramo, Carla, DELLA SELVA, Angelo, Miele, Gennaro, Pisanti, Ofelia, Valore, Laura, and Auger, Collaboration

Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astronomy, Osservatorio Pierre Auger, Astrophysics, GALAXY CLUSTER SURVEY, auger, 01 natural sciences, High energy cosmic ray, Raggi cosmici, Astrophysical jet, GMF, Observatory, Ultra-high-energy cosmic ray, 010303 astronomy & astrophysics, Physics, BL-LACERTAE, Greisen–Zatsepin–Kuz’min effect, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], ORIGIN, UHECR, Astrophysics (astro-ph), Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, Pierre Auger Observatory, GZK, Radiación cósmica, Anisotropía, CATALOG, observatory, ddc:540, EGMF, CUTOFF, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, RELATIVISTIC JETS, Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, Cosmic background radiation, FOS: Physical sciences, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, ACCELERATION, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 0103 physical sciences, extra-galactic, PARTICLES, AGN, Astrophysics::Galaxy Astrophysics, Ciencias Exactas, ANISOTROPY, high energy cosmic rays, Sciami atmosferici, 010308 nuclear & particles physics, Física, Astronomy and Astrophysics, CENTAURUS, Galaxy, Experimental High Energy Physics
Abstract

Data collected by the Pierre Auger Observatory provide evidence for anisotropy in the arrival directions of the cosmic rays with the ighest-energies, which are correlated with the positions of relatively nearby active galactic nuclei (AGN) [Pierre Auger Collaboration, Science 318 (2007) 938]. The correlation has maximum significance for cosmic rays with energy greater than ~6 x 1019 eV and AGN at a distance less than ~75 Mpc. We have confirmed the anisotropy at a confidence level of more than 99% through a test with parameters specified a priori, using an independent data set. The observed correlation is compatible with the hypothesis that cosmic rays with the highest-energies originate from extra-galactic sources close enough so that their flux is not significantly attenuated by interaction with the cosmic background radiation (the Greisen–Zatsepin–Kuz’min effect). The angular scale of the correlation observed is a few degrees, which suggests a predominantly light composition unless the magnetic fields are very weak outside the thin disk of our galaxy. Our present data do not identify AGN as the sources of cosmic rays unambiguously, and other candidate sources which are distributed as nearby AGN are not ruled out. We discuss the prospect of unequivocal identification of individual sources of the highest-energy cosmic rays within a few years of continued operation of the Pierre Auger Observatory., Facultad de Ciencias Exactas

Published
2008
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44. Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory

Author

Abraham, J., Abreu, P., Aglietta, M., Aguirre, C., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez Muniz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anzalone, A., Aramo, C., Argiro', Stefano, Arisaka, K., Armengaud, E., Arneodo, F., Arqueros, F., Asch, T., Asorey, H., Assis, P., Atulugama, B. S., Aublin, J., Ave, M., Avila, G., Baecker, T., Badagnani, D., Barbosa, A. F., Barnhill, D., Barroso, S. L. C., Bauleo, P., Beatty, J. J., Beau, T., Becker, B. R., Becker, K. H., Bellido, J. A., Benzvi, S., Berat, C., Bergmann, T., Bernardini, P., Bertou, X., Biermann, P. L., Billoir, P., Blanch Bigas, O., Blanco, F., Blasi, P., Bleve, C., Biuemer, H., Bohacova, M., Bonifazi, C., Bonino, Raffaella, Boratav, M., Brack, J., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Burton, R. E., Busca, N. G., Caballero Mora, K. S., Cai, B., Camin, D. V., Caramete, L., Caruso, R., Carvalho, W., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, Rosanna, Chauvin, J., Chiavassa, Andrea, Chinellato, J. A., Chou, A., Chye, J., Clark, P. D. J., Clay, R. W., Colombo, E., Conceicao, R., Connolly, B., Contreras, F., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C. E., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret Campagne, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., Donato, C. D., de Jong, S. J., La Vega, G. D., de Mello, W. J. M., J. r., de Mello Neto, J. R. T., Mitri, I. D., Souza, V. d., Peral, L. d., Deligny, O., Selva, A. D., Fratte, C. D., Dembinski, H., Giulio, C. D., Diaz, J. C., Dobrgkeit, C., D'Olivo, J. C., Dornic, D., Dorofeev, A., dos Anjos, J. C., Dova, M. T., D'Urso, D., Dutan, I., Duvernois, M. A., Engel, R., Epele, L., Erdmann, M., Escobar, C. O., Etchegoyen, A., San Luis, P. F., Falcke, H., Farrar, G., Fauth, A. C., Fazzini, N., Ferrer, F., Ferry, S., Fick, B., Filevich, A., Fllipicic, A., Fleck, I., Fonte, R., Fracchiolla, C. E., Fulgione, W., Garcia, B., Gamez, D. G., Garcia Pinto, D., Garrido, X., Geenen, H., Gelmini, G., Gemmeke, H., Ghia, P. L., Giller, M., Glass, H., Gold, M. S., Golup, G., Albarracin, F. G., Berisso, M. G., Herrero, R. G., Gonqalves, P., do Amaral, M. G., Gonzalez, D., Gonzalez, J. G., Gonzalez, M., Gora, D., Gorgi, Alessio, Gouffon, P., Grassi, V., Grillo, A. F., Grunfeld, C., Guardincerri, Y., Guarino, F., Guedes, G. P., Gutierrez, J., Hague, J. D., Hamilton, J. C., Hansen, P., Harari, D., Harmsma, S., Harton, J. L., Haungs, A., Hauschildt, T., Healy, M. D., Hebbeker, T., Hebrero, G., Heck, D., Hojvat, C., Holmes, V. C., Homola, P., Hoerandel, J., Horneffer, A., Horvat, M., Hrabovsky, M., Huege, T., Hussain, M., Iarlori, M., Insolia, A., Ionita, F., Italiano, A., Kaducak, M., Kampert, K. H., Karova, T., Kegl, B., Keilhauer, B., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Knapik, R., Knapp, J., Koang, D. H., Krieger, A., Kroemer, O., Kuempel, D., Kunka, N., Kusenko, A., Rosa, G. L., Lachaud, C., Lago, B. L., Lebrun, D., Lebrun, P., Lee, J., Leigui de Oliveira, M. A., Letessier Selvon, A., Leuthold, M., Lhenry Yvon, I., Lopez, R., Agueera, A. L., Bahilo, J. L., Garcia, R. L., Maccarone, M. C., Macolino, C., Maldera, S., Mancarella, G., Mancenido, M. E., Mandat, D., Mantsch, P., Mariazzi, A. G., Maris, I. C., Marquez Falcon, H. R., Martello, D., Martinez, J., Bravo, O. M., Mathes, H. J., Matthews, J., Matthews, J. A. J., Matthiae, G., Maurizio, D., Mazur, P. O., Mccauley, T., Mcewen, M., Mcneil, R. R., Medina, M. C., Medina Tanco, G., Meli, A., Melo, D., Menichetti, Ezio, Menschikov, A., Meurer, C., Meyhandan, R., Micheletti, M. I., Miele, G., Miller, W., Mollerach, S., Monasor, M., Ragaigne, D. M., Montanet, F., Morales, B., Morello, C., Moreno, J. C., Morris, C., Mostafa, M., Muller, M. A., Mussa, R., Navarra, G., Navarro, J. L., Navas, S., Necesal, P., Nellen, L., Newman Holmes, C., Newton, D., Thao, N. T., Nierstenhoefer, N., Nitz, D., Nosek, D., Nozka, L., Oehlschlaeger, J., Ohnuki, T., Olinto, A., Olmos Gilbaja, V. M., Ortiz, M., Ortolani, F., Ostapchenko, S., Otero, L., Pacheco, N., Selmi Dei, D. P., Palatka, M., Pallotta, J., Parente, G., Parizot, E., Parlati, S., Pastor, S., Patel, M., Paul, T., Pavlidou, V., Payet, K., Pech, M., Pekala, J., Pelayo, R., Pepe, I. M., Perrone, L., Petrera, S., Petrinca, P., Petrov, Y., Diep, P. N., Dong, P. N., Nhung, P. T., Pichel, A., Piegaia, R., Pierog, T., Pimenta, M., Pinto, T., Pirronello, V., Pisanti, O., Platino, M., Pochon, J., Privitera, P., Prouza, M., Quel, E. J., Rautenberg, J., Redondo, A., Reucroft, S., Revenu, B., Rezende, F. A. S., Ridky, J., Riggi, S., Risse, M., Riviere, C., Rizi, V., Roberts, M., Robledo, C., Rodriguez, G., Rodriguez Frias, M. D., Martino, I. R., Rojo, J. R., Rodriguez Cabo, I., Ros, G., Rosado, I., Roth, M., Roucelle, C., Rouille d'Orfeuil, B., Roulet, E., Rovero, A. C., Salamida, F., Salazar, H., Salina, G., Sanchez, F., Santander, M., Santo, C. E., Santos, E. M., Sarazin, F., Sarkar, S., Sato, R., Scherini, V., Schieler, H., Schmidt, A., Schmidt, F., Schmidt, T., Scholten, O., Schovanek, P., Schuessler, F., Sciutto, S. J., Scudeni, M., Segreto, A., Semikoz, D., Settimo, M., Shellard, R. C., Sidelnik, I., Siffert, B. B., Sigl, G., De Grande, N. S., Smialkowski, A., Smida, R., Smith, A. G. K., Smith, B. E., Snow, G. R., Sokolsky, P., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Strazzeri, E., Stutz, A., Suarez, F., Suomijaervi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Takahashi, J., Tamashiro, A., Tamburro, A., Tascau, O., Tcaciuc, R., Thomas, D., Ticona, R., Tiffenberg, J., Timmermans, C., Tkaczyk, W., Todero Peixoto, C. J., Tome, B., Tonachini, Aurelio Siro, Torres, I., Torresi, D., Travnicek, P., Tripathi, A., Tristram, G., Tscherniakhovski, D., Tueros, M., Tunnicliffe, V., Ulrich, R., Unger, M., Urban, M., Valdes Galicia, J. F., Valino, I., Valore, L., van den Berg, A. M., Elewyck, V. v., Vazquez, R. A., Veberic, D., Veiga, A., Velarde, A., Venters, T., Verzi, V., Videla, M., Villasenor, L., Vorobiov, S., Voyvodic, L., Wahlberg, H., Wainberg, O., Walker, P., Warner, D., Watson, A. A., Westerhoff, S., Wieczorek, G., Wiencke, L., Wilczynska, B., Wilczynski, H., Wileman, C., Winnick, M. G., Wu, H., Wundheiler, B., Yamamoto, T., Younk, P., Zas, E., Zavrtanik, D., Zavrtanik, M., Zech, A., Zepeda, A., Holkowski, M., 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), 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)-Université Grenoble Alpes (UGA), 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, 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 - 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), Laboratory for Astroparticle Physics, University of Nova Gorica, PIERRE AUGER, J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, S., Argiro', K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, B. S., Atulugama, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, A. F., Barbosa, D., Barnhill, S. L. C., Barroso, P., Bauleo, J. 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, M., Bohacova, C., Bonifazi, R., Bonino, M., Boratav, J., Brack, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, B., Cai, D. V., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, K., Daumiller, B. R., Dawson, R. M., de Almeida, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, 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, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. A., Duvernoi, R., Engel, L., Epele, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, F., Ferrer, S., Ferry, B., Fick, A., Filevich, A., Filipcic, I., Fleck, R., Fonte, C. E., Fracchiolla, W., Fulgione, B., Garcia, D., Garcia Gamez, D., Garcia Pinto, X., Garrido, H., Geenen, G., Gelmini, H., Gemmeke, P. L., Ghia, M., Giller, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gomez Berisso, R., Gomez Herrero, P., Goncalve, M., Goncalves do Amaral, D., Gonzalez, J. G., Gonzalez, M., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, V., Grassi, A. F., Grillo, C., Grunfeld, Y., Guardincerri, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hauschildt, M. D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, M., Kaducak, K. H., Kampert, T., Karova, B., Kegl, B., Keilhauer, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, M. A., Leigui de Oliveira, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, J., Lozano Bahilo, R., Luna Garcia, M. C., Maccarone, C., Macolino, S., Maldera, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. G., Mariazzi, I. C., Mari, H. R., Marquez Falcon, Martello, Daniele, J., Martinez, O., Martinez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, T., Mccauley, M., Mcewen, R. R., Mcneil, M. C., Medina, G., Medina Tanco, A., Meli, D., Melo, E., Menichetti, A., Menschikov, 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, J. C., Moreno, C., Morri, M., Mostafa, M. A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, C., Newman Holme, D., Newton, N. T., Thao, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, J., Oehlschlager, T., Ohnuki, A., Olinto, V. M., Olmos Gilbaja, M., Ortiz, F., Ortolani, S., Ostapchenko, L., Otero, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, S., Pastor, M., Patel, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, P. N., Diep, P. N., Dong, P. T., Nhung, A., Pichel, R., Piegaia, T., Pierog, M., Pimenta, T., Pinto, V., Pirronello, O., Pisanti, M., Platino, J., Pochon, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, A., Redondo, S., Reucroft, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, C., Riviere, V., Rizi, M., Robert, C., Robledo, G., Rodriguez, M. D., Rodriguez Fria, J., Rodriguezmartino, J., Rodriguez Rojo, I., Rodriguez Cabo, 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, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, V., Scherini, H., Schieler, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, G., Sigl, N., Smetniansky De Grande, A., Smialkowski, R., Smida, A. G. K., Smith, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swainc, Z., Szadkowski, J., Takahashi, A., Tamashiro, A., Tamburro, O., Tascau, R., Tcaciuc, D., Thoma, R., Ticon, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, B., Tome', A., Tonachini, I., Torre, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urbana, 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., Ventersc, V., Verzi, M., Videl, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlber, O., Wainber, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, H., Wua, B., Wundheiler, T., Yamamoto, P., Younk, E., Zasb, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Ziolkowski, 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, 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, D'Urso, Domenico, Aramo, Carla, Miele, Gennaro, Pisanti, Ofelia, and Valore, Laura

Subjects
Photon, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astronomy, Flux, FOS: Physical sciences, Osservatorio Pierre Auger, Cosmic ray, Fotones, Astrophysics, 7. Clean energy, 01 natural sciences, Auger, Nuclear physics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], High Energy Physics - Phenomenology (hep-ph), Raggi cosmici, ultra high energy photons, Cascada atmosférica, Observatory, 0103 physical sciences, 010306 general physics, Ciencias Exactas, Pierre Auger Observatory, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Física, Astronomy and Astrophysics, Energia ultra alta, High Energy Physics - Phenomenology, Pair production, 13. Climate action, Fotoni, Experimental High Energy Physics, ddc:540, flux upper limit, Neutrino, Sciami atmosferici estesi
Abstract

A method is developed to search for air showers initiated by photons using data recorded by the surface detector of the Auger Observatory. The approach is based on observables sensitive to the longitudinal shower development, the signal risetime and the curvature of the shower front. Applying this method to the data, upper limits on the flux of photons of 3.8 x 10-3, 2.5 x 10-3; and 2.2 x 10-3 km-2 sr-1 yr-1 above 1019 eV, 2 x 1019 eV; and 4 x 1019 eV are derived, with corresponding limits on the fraction of photons being 2.0%, 5.1%, and 31% (all limits at 95% c.l.). These photon limits disfavor certain exotic models of sources of cosmic rays. The results also show that the approach adopted by the Auger Observatory to calibrate the shower energy is not strongly biased by a contamination from photons., Facultad de Ciencias Exactas

Published
2008
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