期刊
ADVANCES IN SPACE RESEARCH
卷 53, 期 10, 页码 1456-1469出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.asr.2013.05.008
关键词
Ultra-high energy cosmic rays; All-particle energy spectrum; Extensive air showers; Mass composition; Hadronic interaction models; KASCADE-Grande
类别
资金
- BMBF of Germany
- MIUR
- INAF of Italy
- Polish Ministry of Science and Higher Education
- Romanian Authority for Scientific Research EFISCDI PNII-IDEI [271/2011, 17/2011]
- CONACyT
- DAA-Proalmex program
- Helmholtz Alliance for Astroparticle Physics - HAP - Initiative and Networking Fund of the Helmholtz Association, Germany
Previous results obtained by KASCADE-Grande using the QGSjetII-02 hadronic interaction model have shown that the energy spectrum of cosmic rays between 10(16) eV and 10(18) eV exhibits a significant hardening at approximately 2 x 10(16) eV and a slight but statistically significant steepening close to 10(17) Moreover, the analysis with QGSjetII-02 suggests that the break observed around 10(17) eV is caused by the heavy component of primary cosmic rays. In this paper, we report on the results of similar analyses performed using the SIBYLL 2.1 and EPOS 1.99 hadronic interaction models to interpret the data. The present results confirm qualitatively the previous findings. However, the intensity of the all-particle spectrum, the positions of the hardening and steepening of the spectrum, as well as the relative abundance of the heavy and light mass groups depend on the hadronic interaction model used to interpret the data. (C) 2013 COSPAR. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据