We report the first result of measurements of the lateral distribution of Cerenkov light associated with cosmic ray extensive air showers with size between 10^(5.0)and 10^(6.6)observed in the Liangwang Mountain Observ...We report the first result of measurements of the lateral distribution of Cerenkov light associated with cosmic ray extensive air showers with size between 10^(5.0)and 10^(6.6)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.展开更多
Objective The end-Triassic mass extinction was one of the five most profound Phanerozoic extinction events.This event was accompanied by a series of significant environmental changes,of which the most notable is the e...Objective The end-Triassic mass extinction was one of the five most profound Phanerozoic extinction events.This event was accompanied by a series of significant environmental changes,of which the most notable is the emergence of warm climate and the world-wide disappearance of carbonate platform.展开更多
文摘We report the first result of measurements of the lateral distribution of Cerenkov light associated with cosmic ray extensive air showers with size between 10^(5.0)and 10^(6.6)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.
基金financially supported by the National Science Foundation of China(grant No.41572089)
文摘Objective The end-Triassic mass extinction was one of the five most profound Phanerozoic extinction events.This event was accompanied by a series of significant environmental changes,of which the most notable is the emergence of warm climate and the world-wide disappearance of carbonate platform.