A systematic study of the hybrid experiment at Mt.Chacaltaya

M. Tamada, H. Aoki, K. Honda, N. Inoue, N. Kawasumi, N. Martinic, N. Ochi, N. Ohmori, A. Ohsawa, H. Semba, R. Ticona

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

2 Citas (Scopus)


In the hybrid experiment on Mt.Chacaltaya, we can observe three different components of airshowers, that is, air-shower size, burst-density and high energy families (a bundle of high energy particles). Burst-density in each block of hadron calorimeters are newly recalculated in simulations in oder to compare directly to the experimental data. Energy deposits in the scintillators of the hadron calorimeters are calculated using GEANT4 for every particle, incident upon the hadron calorimeter, in the air-showers simulated using CORSIKA, and are converted into burst-density, taking into consideration the exact structure of experimental hadron calorimeter. We study correlations among three observable components in the air-showers. Correlations between air-shower size and burst-density and those between air-shower size and accompanied family energy can be explained by model calculations by adjusting primary particle composition, the former correlation is in favor of proton-primaries but the latter iron-primaries. No model can describe well observed correlations between burst-density and family energy. That is, the observed family energy accompanied by the air-showers with larger burst-density is systematically smaller than that expected in the simulated events. Effects of a fluctuation in the cross-section of hadronic interactions are studied to settle the disagreement between experimental data and simulations.

Idioma originalInglés
Título de la publicación alojadaISVHECRI 2012 - 17th International Symposium on Very High Energy Cosmic Ray Interactions
EstadoPublicada - 2013
Evento17th International Symposium on Very High Energy Cosmic Ray Interactions, ISVHECRI 2012 - Berlin, Alemania
Duración: 10 ago. 201215 ago. 2012

Serie de la publicación

NombreEPJ Web of Conferences
ISSN (versión impresa)2101-6275
ISSN (versión digital)2100-014X


Conferencia17th International Symposium on Very High Energy Cosmic Ray Interactions, ISVHECRI 2012


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