Present experiment of BASJE group at Mt. Chacaltaya
Creators
- 1. Ehime University, Dept. of Physics, Matsuyama, Ehime (Japan)
- 2. Tokyo Institute of Technology, Dept. of Physics, Meguro, Tokyo (Japan)
- 3. The Institute of Physics and Chemistry Research, Wako, Saitama (Japan)
- 4. National Space Development Agency of Japan, Tsukuba, Ibaraki (Japan)
- 5. Instituto de Investigaciones en Informatica, Universidad Mayor de San Andres, La Paz (Bolivia)
- 6. Oayama University, Dept. of Physics, Okayama (Japan)
- 7. Nagoya University of Foreign Studies, Nissin, Aichi (Japan)
- 8. Fukui University of Technology, Faculty of General Education, Fukui (Japan)
- 9. Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi (Japan)
- 10. National Astronomical Observatory, Mitaka, Tokyo (Japan)
Description
A compact air shower array to observe primary cosmic rays above a few TeV has been installed at Mt. Chacaltaya in Bolivia since 1996. This array is available to observe the air showers above 6 TeV and the longitudinal development curves above 50 TeV. The purpose of the observations is to study the chemical composition and the energy spectrum of cosmic rays in the energy region including the knee of the energy spectrum. First, the consistency between direct measurements (balloon-borne experiments) and air shower observations in the energy region from 50 TeV to 80 TeV is examined and confirmed. Next, the chemical composition and the energy spectrum are derived from the air shower observations. In the study, the longitudinal developments of shower particles are calculated by Monte Carlo simulations, assuming different chemical compositions above 80 TeV. The characteristics of the present air shower array and the comparison of the preliminary observed results with that of the simulations are presented
Additional details
Publishing Information
- Journal Title
- Nuovo Cimento. C
- Journal Volume
- 24CS2
- Journal Issue
- 4-5
- Journal Page Range
- p. 507-512
- ISSN
- 0390-5551
- CODEN
- NIFCAS
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- Italy
- INIS RN
- 33020400
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- COSMIC RADIATION; ENERGY SPECTRA; EXTENSIVE AIR SHOWERS; MONTE CARLO METHOD
- Descriptors DEC
- CALCULATION METHODS; COSMIC RADIATION; COSMIC SHOWERS; IONIZING RADIATIONS; RADIATIONS; SECONDARY COSMIC RADIATION; SHOWERS; SPECTRA