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﹒m ²﹒sr, their attenuation length in air is (104±16)g/cm ², 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

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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 withE_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).