THE ANGULAR DISTRIBUTION OF PHOTONS IN ORTHOPOS-ITRONIUM THREE PHOTON DECAY

YANG Bao-Zhong; TAN Yong; TANG Xiao-Wei; BIAN Zu-He

Chinese Physics C> 1989, Vol. 13> Issue(6) : 487-489

THE ANGULAR DISTRIBUTION OF PHOTONS IN ORTHOPOS-ITRONIUM THREE PHOTON DECAY

University of Science and Technology of China,Hefei

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Abstract：
The three photon decay of positronium was further studied using positronium source composed of ²²Na and silica aerogel and triple fast coincidence method.We measured the angular distribution of the photons in the large angle region under symmetrical geometry with respect to the third photon.The whole curve of the angular distribution of photons was given combining with the data in the small angle region which was published before.The results were in good agreement with theoretical predicted values.

References

[1]	A. I. Akhiezer and V. B. Berestetskii,Quantum Eectrodynamics, Oak Ridge, 1957.[2] You Ke, Tane Xiaotvei; Yang Baozhong,Li Yaogong, Chinese Phys. Lett., 3(1986), 345

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[18]	HE Ming-Ke , RAO Jian-Xi , LIN Da-Hang . THE RELATIVISTIC CORRECTIONS FOR CROUND STATE ENERGY OF THE POSITRONIUM NEGATIVE ION. Chinese Physics C, 1986, 10(2): 146-152.
[19]	XIE Jia-Lin . ON THE AVERAGE LUMINOSITY OF ELECTRON POSITRON COLLIDER AND POSITRON-PRODUING ENERGY. Chinese Physics C, 1985, 9(5): 577-585.
[20]	ZHANG Tian-Bao , TANG Xiao-Wei , WANG Yun-Yu , LI Yao-Qing , YIU Ke , WANG Shao-Jie . MEASUREMENT OF THE WHOLE GAMMA-RAY ENERGY SPECTRUM IN o-Ps 3 GAMMA-DECAY. Chinese Physics C, 1984, 8(4): 385-391.

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YANG Bao-Zhong, TAN Yong, TANG Xiao-Wei and BIAN Zu-He. THE ANGULAR DISTRIBUTION OF PHOTONS IN ORTHOPOS-ITRONIUM THREE PHOTON DECAY[J]. Chinese Physics C, 1989, 13(6): 487-489.

YANG Bao-Zhong, TAN Yong, TANG Xiao-Wei and BIAN Zu-He. THE ANGULAR DISTRIBUTION OF PHOTONS IN ORTHOPOS-ITRONIUM THREE PHOTON DECAY[J]. Chinese Physics C, 1989, 13(6): 487-489. shu

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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

THE ANGULAR DISTRIBUTION OF PHOTONS IN ORTHOPOS-ITRONIUM THREE PHOTON DECAY

Corresponding author: YANG Bao-Zhong,

University of Science and Technology of China,Hefei

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1989-06-05

Abstract: The three photon decay of positronium was further studied using positronium source composed of ²²Na and silica aerogel and triple fast coincidence method.We measured the angular distribution of the photons in the large angle region under symmetrical geometry with respect to the third photon.The whole curve of the angular distribution of photons was given combining with the data in the small angle region which was published before.The results were in good agreement with theoretical predicted values.