Phenomenon of Alignment in Cosmic Ray High Energy Family Events

XUE Liang; DAI ZhiQiang; LI Jinyu; ZHANG Xueyao; FENG CunFeng; FU Yu; ZHANG NaiJian; REN JingRu; LU SuiLing

Chinese Physics C> 2000, Vol. 24> Issue(11) : 979-984

Phenomenon of Alignment in Cosmic Ray High Energy Family Events

Department of Physics, Shandong University, Jinan 250100, China1 Institute of High Energy Physics, CAS, Beijing 100039, China

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Abstract：
The alignment of energetically distinguished cores in a part of family events observed with Kanbala K0-K7 emulsion chambers is analyzed, and compared with the simulation results given by COSMOS and CORSIKA code. It is shown that the fraction of events with alignment in the experimental families increases with the visible energy of families but this effect can not be explained by the conventional simulations. The Criteria of identifying γ-rays and hadrons in the family events are also discussed.

References

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XUE Liang, DAI ZhiQiang, LI Jinyu, ZHANG Xueyao, FENG CunFeng, FU Yu, ZHANG NaiJian, REN JingRu and LU SuiLing. Phenomenon of Alignment in Cosmic Ray High Energy Family Events[J]. Chinese Physics C, 2000, 24(11): 979-984.

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Received: 1999-11-10
Revised: 1900-01-01

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