arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1905.04472astro-ph.HEastro-ph.IM
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AugerPrime:皮埃尔俄歇天文台升级

AugerPrime: the Pierre Auger Observatory Upgrade

Antonella Castellina

摘要:

世界上最大的超高能宇宙射线暴露积累的皮埃尔俄歇天文台导致我们的理解其性质的重大进展,但许多未知的性质和分布的来源,主要成分和基础的强子相互作用防止出现一个独特的一致的图片。目前的结果所开辟的新前景要求对天文台进行升级,其主要目的是逐簇收集关于最高能量宇宙射线的基本质量的新信息。对通量抑制区域中光原色分数的评估将打开带电粒子天文学的窗口,允许进行成分选择的各向异性搜索。此外,在人造加速器未覆盖的能量下将研究多粒子产生的性质,并将寻找强子相互作用的新的或意想不到的变化。在讨论了升级皮埃尔俄歇天文台的动机之后,介绍了探测器的升级。然后,我们讨论了预期的性能和改进的物理灵敏度的升级探测器,并提出了第一次收集的数据与已经运行的工程阵列。

英文摘要:

The world largest exposure to ultra-high energy cosmic rays accumulated by the Pierre Auger Observatory led to major advances in our understanding of their properties, but the many unknowns about the nature and distribution of the sources, the primary composition and the underlying hadronic interactions prevent the emergence of a uniquely consistent picture. The new perspectives opened by the current results call for an upgrade of the Observatory, whose main aim is the collection of new information about the primary mass of the highest energy cosmic rays on a shower-by-shower basis. The evaluation of the fraction of light primaries in the region of suppression of the flux will open the window to charged particle astronomy, allowing for composition-selected anisotropy searches. In addition, the properties of multiparticle production will be studied at energies not covered by man-made accelerators and new or unexpected changes of hadronic interactions will be searched for. After a discussion of the motivations for upgrading the Pierre Auger Observatory, a description of the detector upgrade is provided. We then discuss the expected performances and the improved physics sensitivity of the upgraded detectors and present the first data collected with the already running Engineering Array.

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。

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