强子-强子核相互作用参数化模型在超高能宇宙线研究中的应用

Application of Hadron-Hadron Nuclear Interaction Parametrization Model in the Study of Superhigh Energy Cosmic Rays

在混合初级宇宙线成分的假定下,用参数化模型描述强子-强子相互作用过程,模拟超高能宇宙线粒子在大气中的行为,并将模拟计算结果同高山乳胶室的实验数据进行了细致的比较与讨论。同时详细讨论了碎裂区次级粒子平均横动量取值对模拟计算结果的影响。

Under the assumption of mixed primary cosmic ray composition and using a hadron-had- ron interaction parametrization model to describe hadron-hadron nuclear interaction, the be- havior of superhigh energy cosmic ray particles in the atmosphere is simulated, and the simula- ted results are compared with experimental data of Mt. emulsion chamber in details. The in- fluences from the mean transverse momentum value of secondary particles in fragmentation re- gion on simulated results are discussed also in details.