标题： 空气 Shower 模拟的状态 显示英文标题

标题： Status of Air Shower Simulations

摘要： 综述了广延大气簇射（EAS）模拟方法的现状。 讨论了结合数值方法和蒙特卡罗方法描述EAS发展的优点。 简要描述了宇宙线相互作用模型的物理内容，并将其预测与LHC的首批数据进行了比较。 最后，分析了与“踝部”能量处宇宙线成分相关的某些未解之谜。 显示英文摘要

摘要： The present status of extensive air shower (EAS) simulation procedures is reviewed. The advantages of combining numerical and Monte Carlo methods for the description of EAS development are discussed. Physics content of cosmic ray interaction models is briefly described and their predictions are compared to the first LHC data. Finally, some outstanding puzzles related to cosmic ray composition at the "ankle" energies are analyzed.