Cosmic ray composition in the 'Knee' region deduced from the lateral distribution of Cerenkov light emitted in extensive air showers

Min ZHA, Tsang CHEUNG, Lin Kai DING, Xiaoyu GAO, Qingxi GENG, Changqin LIU, Pun Hon NG, Hongtao YANG, Qingqi ZHU

Research output: Contribution to journalArticle

Abstract

We report the first result of measurements of the lateral distribution of Čerenkov light associated with cosmic ray extensive air showers with size between 10⁵∙⁰ and 10⁶∙⁶ observed in the Liangwang Mountain Observatory, 90 km east of Kunming City in China. The change trend towards heavy nucleus dominance of the primary cosmic ray composition in the `knee' region is deduced with the aid of a Monte Carlo simulation. Copyright © 1999 Institute of Physics Publishing.
Original languageEnglish
Pages (from-to)622-624
JournalChinese Physics Letters
Volume16
Issue number8
DOIs
Publication statusPublished - Aug 1999

Citation

Zha, M. , Cheung, T., Ding, L.-K., Gao, X.-Y., Geng, Q.-X., Liu, C.-Q., et al. (1999). Cosmic ray composition in the 'Knee' region deduced from the lateral distribution of Cerenkov light emitted in extensive air showers. Chinese Physics Letters, 16(8), 622-624. doi: 10.1088/0256-307X/16/8/028

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