A STUDY ON THE CHARACTERISTICS OF COSMIC RAY HADRONS AT MT. KAMBALA

ZHANG Chun-Sheng; REN Jing-Ru; KUANG Hao-Huai; LU Sui-Ling; LI Ming-Xiang; SU Shi; WANG Yun-Xin; WANG Dian-Chen; FAN Hai-Kun; XUE Yong-Gui; HUO An-Xiang

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1985, Vol. 9> Issue(6) : 649-652

A STUDY ON THE CHARACTERISTICS OF COSMIC RAY HADRONS AT MT. KAMBALA

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Abstract：
The characteristics of cosmic ray hadrons are studied by use of mountain emulsion chambers installed on Mt. Kambala 5500m above sea level. The power index of the differential energy spectrum is (2.98±0.49) in the energy region from 2TeV to 20TeV. The vertical flux of hadrons with E_h^γ≥3TeV is =(400±50)/year﹒m²﹒sr, their attenuation length in air is (104±16)g/cm², the mean interaction lengths of hadrons and mesons in Pb are (15.3±3.0)cm and (18.6±4.7)cm respectively, and the ratio of meson-to nucleon in cosmic ray hadrons on Mt. Kambala is (1.0±0.4).

References

[1]	任敬儒等, 高能物理与核物理, 5(1981), 205,[2] 霍安祥等, 高能物理与核物理, 6(1982),778,[3] 任敬儒, 山东大学学报, 3(1982),76,[4] 任敬儒等, 高能物理与核物理, 2(1976),318,[5]China-Japan Emulsion Chamber Collaboration, 18th ICRC V5 (1983), 285.[6] Ding Lin-kai, et al., 16th ICRC, V7 (1979), 95.[7] 汤田利典, 用乳胶室研究超高能核作用, (1983), 第八页.

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ZHANG Chun-Sheng, REN Jing-Ru, KUANG Hao-Huai, LU Sui-Ling, LI Ming-Xiang, SU Shi, WANG Yun-Xin, WANG Dian-Chen, FAN Hai-Kun, XUE Yong-Gui and HUO An-Xiang. A STUDY ON THE CHARACTERISTICS OF COSMIC RAY HADRONS AT MT. KAMBALA[J]. Chinese Physics C, 1985, 9(6): 649-652.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

A STUDY ON THE CHARACTERISTICS OF COSMIC RAY HADRONS AT MT. KAMBALA

Corresponding author: ZHANG Chun-Sheng,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1985-12-05

Abstract: The characteristics of cosmic ray hadrons are studied by use of mountain emulsion chambers installed on Mt. Kambala 5500m above sea level. The power index of the differential energy spectrum is (2.98±0.49) in the energy region from 2TeV to 20TeV. The vertical flux of hadrons with E_h^γ≥3TeV is =(400±50)/year﹒m²﹒sr, their attenuation length in air is (104±16)g/cm², the mean interaction lengths of hadrons and mesons in Pb are (15.3±3.0)cm and (18.6±4.7)cm respectively, and the ratio of meson-to nucleon in cosmic ray hadrons on Mt. Kambala is (1.0±0.4).