Hadron-gamma discrimination from an orbital UHECR observatory (2009)
Supanitsky, A. D., Medina-Tanco, G., Asano, K., Cline, D., Ebisuzaki, T., Inoue, S., ...
The identification of very high energy photons is of great importance for the understanding of the origin of extreme energy cosmic rays (EECR). Several can be the sources of high energy photons at...
Development of neutrino initiated cascades at mid and high altitudes in the atmosphere (2009)
Supanitsky, A. D., Medina-Tanco, G., Asano, K., Cline, D., Ebisuzaki, T., Inoue, S., ...
Neutrinos are a very promising messenger at tens of EeV and above. They can be produced by several channels, namely as by products of hadronic interactions at the sources, as the main products of the...
Supanitsky, A. D., Medina-Tanco, G.
The simulations of extensive air showers as well as the detectors involved in their detection play a fundamental role in the study of the high energy cosmic rays. At the highest energies the detailed...
The Fluorescence Detector of the Pierre Auger Observatory (2009)
Abreu, P., Aglietta, M., Aguirre, C., Ahn, E. J., Allard, D., ...
The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays. It combines a surface array to measure secondary particles at ground level together with a fluorescence detector...
Abreu, P., Aglietta, M., Aguirre, C., Ahn, E. J., Allard, D., ...
Studies of the correlations of ultra-high energy cosmic ray directions with extra-Galactic objects, of general anisotropy, of photons and neutrinos, and of other astrophysical effects, with the...
Operations of and Future Plans for the Pierre Auger Observatory (2009)
Abreu, P., Aglietta, M., Aguirre, C., Ahn, E. J., Allard, D., ...
Technical reports on operations and features of the Pierre Auger Observatory, including ongoing and planned enhancements and the status of the future northern hemisphere portion of the Observatory....
Calibration and Monitoring of the Pierre Auger Observatory (2009)
Abreu, P., Aglietta, M., Aguirre, C., Ahn, E. J., Allard, D., ...
Reports on the atmospheric monitoring, calibration, and other operating systems of the Pierre Auger Observatory. Contributions to the 31st International Cosmic Ray Conference, Lodz, Poland, July 2009.
The Cosmic Ray Energy Spectrum and Related Measurements with the Pierre Auger Observatory (2009)
Abreu, P., Aglietta, M., Aguirre, C., Ahn, E. J., Allard, D., ...
Studies of the cosmic ray energy spectrum at the highest energies with the Pierre Auger Observatory.
Studies of Cosmic Ray Composition and Air Shower Structure with the Pierre Auger Observatory (2009)
Abreu, P., Aglietta, M., Aguirre, C., Ahn, E. J., Allard, D., ...
Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air showers....
On the possibility of primary identification of individual cosmic ray showers (2008)
Supanitsky, A. D., Medina-Tanco, G., Etchegoyen, A.
The transition between the Galactic and extragalactic cosmic ray components could take place either in the region of the spectrum known as the second knee or in the ankle. There are several models of...
A New Numerical Technique to Determine Primary Cosmic Ray Composition in the Ankle Region (2008)
Supanitsky, A. D., Medina-Tanco, G., Etchegoyen, A.
In this paper we introduce a new multiparametric technique that attempts to tackle simultaneously the problems of composition determination and hadronic interaction uncertainty. Employing simulations...
Effect of multiple reusing of simulated air showers in detector simulations (2008)
Supanitsky, A. D., Medina-Tanco, G.
The study of high energy cosmic rays requires detailed Monte Carlo simulations of both, extensive air showers and the detectors involved in their detection. In particular, the energy calibration of...
Perturbative exponential expansion and matter neutrino oscillations (2008)
Supanitsky, A. D., D'Olivo, J. C., Medina-Tanco, G.
We derive an analytical description of neutrino oscillations in matter based on the Magnus exponential representation of the time evolution operator. Our approach is valid in a wide range of the...
The Galactic Center as a point source of neutrons at EeV energies (2007)
The central region of our Galaxy is a very peculiar environment, containing magnetic fields in excess of 100 mG and gas densities reaching ~ 10^4cm^-3. This region was observed as a strong source of...
Lateral width of shower image in the Auger fluorescence detector. (2006)
Barbosa, H., De Souza, V., Dobrigkeit, C., Engel, R., Gora, D., Heck, D., ...
Contributions to the 29th Internat.Cosmic Ray Conf.(ICRC 2005), Poona, IND, August 3-10, 2005
Lateral width of shower image in the Auger fluorescence detector. (2005)
Barbosa, H., De Souza, V., Dobrigkeit, C., Engel, R., Gora, D., Heck, D., ...
29th Internat.Cosmic Ray Conf., Poona, IND, August 3-10, 2005