arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2303.16670astro-ph.HE
收藏

Greisen函数及其描述大气簇射轮廓的能力

The Greisen Function and its Ability to Describe Air-Shower Profiles

Maximilian Stadelmaier, Jakub Vícha, Vladimír Novotný

AI总结:

本文探讨了Greisen函数描述空气簇射纵向轮廓的能力,证明其适用于强子簇射,并提出利用该函数的轮廓形状鉴别强子与光子的新方法。

摘要:

超高能宇宙射线几乎完全通过其与大气相互作用引发的大范围空气簇射来探测。这些空气簇射的纵向发展可直接使用荧光探测器望远镜观测,例如Pierre Auger Observatory或Telescope Array所配备的设备。本文讨论了Greisen函数的性质,它最初作为电磁级联方程的近似解被推导出来,以及它描述纵向簇射轮廓的能力。我们证明,Greisen函数可用于描述纵向空气簇射轮廓,即使是强子空气簇射也是如此。此外,我们还讨论了利用Greisen函数从空气簇射轮廓的形状中鉴别强子和光子的可能性。

英文摘要:

Ultrahigh-energy cosmic rays are almost exclusively detected through extensive air showers, which they initiate upon interaction with the atmosphere. The longitudinal development of these air showers can be directly observed using fluorescence detector telescopes, such as those employed at the Pierre Auger Observatory or the Telescope Array. In this article, we discuss the properties of the Greisen function, which was initially derived as an approximate solution to the electromagnetic cascade equations, and its ability to describe the longitudinal shower profiles. We demonstrate that the Greisen function can be used to describe longitudinal air-shower profiles, even for hadronic air showers. Furthermore we discuss the possibility to discriminate between hadrons and photons from the shape of air-shower profiles using the Greisen function.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑