Primary proton spectrum around the knee deduced from the emulsion-chamber data obtained at Mts. Fuji and Kanbala

J. Huang*, N. Hotta, K. Kasahara, I. Ohta, Shunsuke Ozawa, T. Saito, M. Shibata, X. W. Xu, T. Yuda

*この研究の対応する著者

研究成果: Article査読

13 被引用数 (Scopus)

抄録

We have done extensive Monte Carlo simulations using the new simulation codes of CORSIKA and COSMOS to compare with the gamma-family data obtained at Mts. Fuji (3750 m above sea level) and Kanbala (5500 m above sea level). Then, we estimated the primary proton and helium spectra around the knee energy region using a multiple-layered feed-forward neural network as a classifier of primary particle kind. The selection efficiency of proton-induced family events is estimated to be 82%. The flux value of protons at 2 × 1015 eV is (5.5 ± 1:5) × 10-14 (m-2 s-1 sr-1 GeV-1). The result suggests heavy-enriched primary composition around the knee region.

本文言語English
ページ(範囲)637-648
ページ数12
ジャーナルAstroparticle Physics
18
6
DOI
出版ステータスPublished - 2003 3月
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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