Measurement of air shower cores to study the cosmic ray composition in the knee energy region

M. Amenomori, S. Ayabe, Caidong, Danzengluobu, L. K. Ding, Z. Y. Feng, Y. Fu, H. W. Guo, M. He, K. Hibino, N. Hotta, Q. Huang, A. X. Huo, K. Izu, H. Y. Jia, F. Kajino, K. Kasahara, Y. Katayose, Labaciren, J. Y. LiH. Lu, S. L. Lu, G. X. Luo, X. R. Meng, K. Mizutani, J. Mu, H. Nanjo, M. Nishizawa, M. Ohnishi, I. Ohta, T. Ouchi, Z. R. Peng, J. R. Ren, T. Saito, M. Sakata, T. Sasaki, Z. Z. Shi, M. Shibata, A. Shiomi, T. Shirai, H. Sugimoto, K. Taira, Y. H. Tan, N. Tateyama, Shoji Torii, T. Utsugi, C. R. Wang, H. Wang, X. W. Xu, Y. Yamamoto, G. C. Yu, A. F. Yuan, T. Yuda, C. S. Zhang, H. M. Zhang, J. L. Zhang, N. J. Zhang, X. Y. Zhang, Zhaxiciren, Zhaxisangzhu

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Abstract

Since 1996, a hybrid experiment consisting of an emulsion chamber and a burst detector array and the Tibet-II air-shower array has been operated at Yangbajing (4300 m above sea level) in Tibet. This experiment can detect air shower cores, called burst events, accompanied by air showers in excess of about 100 TeV. Using the burst event data observed by this experiment, we discuss the primary cosmic ray composition around the knee in comparison with the Monte Carlo simulations. In this paper, we show that all the features of burst events are wholly compatible with the heavy enriched composition in the knee energy region.

Original languageEnglish
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume62
Issue number7
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Amenomori, M., Ayabe, S., Caidong, Danzengluobu, Ding, L. K., Feng, Z. Y., Fu, Y., Guo, H. W., He, M., Hibino, K., Hotta, N., Huang, Q., Huo, A. X., Izu, K., Jia, H. Y., Kajino, F., Kasahara, K., Katayose, Y., Labaciren, ... Zhaxisangzhu (2000). Measurement of air shower cores to study the cosmic ray composition in the knee energy region. Physical Review D - Particles, Fields, Gravitation and Cosmology, 62(7). https://doi.org/10.1103/PhysRevD.62.072007