THE VERTICAL INTEGRATED MOMENTUM SPECTRUM OF THE MUON WITH MOMENTUM LARGER THAN 4 GeV/<EM>c </EM>AT 3220m ABOVE SEA-LEVEL

JING GUI-RU; HUO AN-XIANG; YAN YU-KUI; WANG LI-AN; LI YAN-GUO; SU DENG-JI; MENG XIANG-CHENG; YAO WEI-ZHONG; ZHOU YIN-ZAO; PENG SHAO-HUA; WANG LI-HUI

Chinese Physics C> 1978, Vol. 2> Issue(5) : 417-422

THE VERTICAL INTEGRATED MOMENTUM SPECTRUM OF THE MUON WITH MOMENTUM LARGER THAN 4 GeV/c AT 3220m ABOVE SEA-LEVEL

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Abstract：
At an altitude of 3220 meters above sea level in Yunnan Province, we measured, by using a G-M counter-magnetic spectrometer, the vertical integratted momentum spectrum of the cosmic muon with momentum larger than 4 GeV/c. The spectrum obtained from this experiment is expressed by a power function in the form of I（>p）=Q （p+4）^-1.86±0.06(cm^-2·sr^-1·s^-1), where p is in GeV/c and Q is a constant. We also measured the charge ratio of muon in the 4—23 GeV/c momentum range. The result is N_μ/N_μ-=1.26±0.11. The error in the momentum measurement with spectrometer has been discussed and calculated.

References

[1]	S. Hayakawa, "Cosmic Ray Physics", (John Wiley Sons, H. Y., 1969), 335-374.[2] B. Rossi, "High Energy Particles", (Prentice-Hall, N.Y. 1952), 16.[3」丁林境、李惕碚、沈长铨、陈映宣、蔡邦鉴，物理，3(1973), 115.

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JING GUI-RU, HUO AN-XIANG, YAN YU-KUI, WANG LI-AN, LI YAN-GUO, SU DENG-JI, MENG XIANG-CHENG, YAO WEI-ZHONG, ZHOU YIN-ZAO, PENG SHAO-HUA and WANG LI-HUI. THE VERTICAL INTEGRATED MOMENTUM SPECTRUM OF THE MUON WITH MOMENTUM LARGER THAN 4 GeV/c AT 3220m ABOVE SEA-LEVEL[J]. Chinese Physics C, 1978, 2(5): 417-422.

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Received: 1978-05-03
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

THE VERTICAL INTEGRATED MOMENTUM SPECTRUM OF THE MUON WITH MOMENTUM LARGER THAN 4 GeV/c AT 3220m ABOVE SEA-LEVEL

Received Date: 1978-05-03
Accepted Date: 1900-01-01
Available Online: 1978-10-05

Abstract: At an altitude of 3220 meters above sea level in Yunnan Province, we measured, by using a G-M counter-magnetic spectrometer, the vertical integratted momentum spectrum of the cosmic muon with momentum larger than 4 GeV/c. The spectrum obtained from this experiment is expressed by a power function in the form of I（>p）=Q （p+4）^-1.86±0.06(cm^-2·sr^-1·s^-1), where p is in GeV/c and Q is a constant. We also measured the charge ratio of muon in the 4—23 GeV/c momentum range. The result is N_μ/N_μ-=1.26±0.11. The error in the momentum measurement with spectrometer has been discussed and calculated.