产生时电磁和μ子纵剖面之间的相互作用
The interplay between the electromagnetic and the muonic longitudinal profile at production
摘要：
电磁场和μ子场的纵剖面包含了关于支配簇射发展的初级粒子和强子相互作用的重要信息。实际上，这两个剖面提供了对簇射的两种不同的理解：电磁分量给出了中性π介子通道的能量和强度的测量;而与带电介子衰变密切相关的μ子剖面可以作为高能强子相互作用的直接探针。在这项工作中，我们探讨电磁和μ子配置文件之间的相互作用，通过分析他们的现象学行为不同的初级质量和能量，天顶角，也不同的高能强子相互作用模型。我们已经发现，μ子的纵向轮廓在生产显示出类似于什么是已知的电磁一个普遍的功能。此外，我们表明，这两个配置文件有新的主要质量组成变量是相当独立的高能强子相互作用模型。最后，我们讨论了如何将电磁和μ子纵剖面中的信息结合起来，打破初级质量组成和高能强子物理之间的简并性。
英文摘要：
The electromagnetic and the muonic longitudinal profile at production enclosure important information about the primary particle and the hadronic interactions that rule the shower development. In fact, these two profiles provide two different insights of the shower: the electromagnetic component gives a measurement of the energy and the strength of the neutral pion channel; while the muonic profile, being intimately related with the charged mesons decays, can be used as a direct probe for the high energy hadronic interactions. In this work we explore the interplay between the electromagnetic and muonic profiles, by analysing their phenomenologic behaviour for different primary masses and energies, zenith angles, and also different high energy hadronic interaction models. We have found that the muonic longitudinal profile at production displays universal features similar to what is known for the electromagnetic one. Moreover, we show that both profiles have new primary mass composition variables which are fairly independent of the high energy hadronic interaction model. Finally we discuss how the information in the electromagnetic and the muonic longitudinal profile can be combined to break the degeneracy between the primary mass composition and the high energy hadronic physics.
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