Cosmic-ray mass composition with the TA SD 12-year data
Cosmic-ray mass composition with the TA SD 12-year data
复制标题
宇宙射线质量成分与 TA SD 12 年数据
DOI:
10.22323/1.395.0300
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Y. Zhezher
中科院分区:
文献类型:
--
作者:
Y. Zhezher
Telescope Array (TA) is the largest ultra-high-energy cosmic-ray (UHECR) observatory in the Northern Hemisphere. It is dedicated to detect extensive air showers (EAS) in hybrid mode, both by measuring the shower’s longitudinal profile with fluorescence telescopes and their particle footprint on the ground from the surface detector (SD) array. While fluorescence telescopes can measure the most composition-sensitive characteristic of EAS, the depth of the shower maximum (Xmax), they also have the drawback of small duty cycle. This work aims to study the UHECR composition based solely on the surface detector data. For this task, a set of composition-sensitive observables obtained from the SD data is used in a machine-learning method – the Boosted Decision Trees. We will present the results of the UHECRmass composition based on the 12-year data from the TA SD using this technique, and we will discuss of the possible systematics imposed by the hadronic interaction models.
DOI:
10.3847/1538-4357/aabad7
发表时间:
2018
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Abbasi, R. U.;Abe, M.;Abu-Zayyad, T.;Allen, M.;Azuma, R.;Barcikowski, E.;Belz, J. W.;Bergman, D. R.;Blake, S. A.;Cady, R.
通讯作者:
Cady, R.