Summary
The rate and angular distribution of multi-muons events in extensive air showers (EAS) are measured at sea level by a high-efficiency flash chamber calorimeter with an angular resolution of about 0.5°. Data are compared with the predictions of the low-energy composition model (LEC) of the primary cosmic-rays energy spectrum in the range (1014”1016) eV and agreement has been found. The measured time correlation between multi-muons events is also discussed. No anomaly has been found.
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Marcello Conversi died on September 27, 1988. The present paper is dedicated to his memory.
Partially supported by Ministero della Pubblica Istruzione.
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Bressi, G., Calligarich, E., Cambiaghi, M. et al. Measurement of multi-muon events in a flash chamber tracking calorimeter at sea level. Il Nuovo Cimento C 14, 363–375 (1991). https://doi.org/10.1007/BF02509180
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DOI: https://doi.org/10.1007/BF02509180