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

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

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

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

Abstract
HTML
Reference
Related

PDF

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

[1]	PEI Guo-Xi , SUN Yao-Lin , LIU Jin-Tong , CHI Yun-Long , LIU Yu-Cheng , LIU Nian-Zong . BEPCⅡ Positron Source. Chinese Physics C, 2006, 30(1): 66-70.
[2]	LIU Jin-Tong , GEN Zhe-Qiao , SUN Xian-Jing , SUN Yao-Lin , PEI Guo-Xi . Development of the BEPCⅡ Positron Source Flux Concentrator. Chinese Physics C, 2005, 29(4): 404-407.
[3]	WANG Shu-Hong , JIN Kai , ZHOU Feng . TESLA TW Positron Injector Linac and Beam Modeling. Chinese Physics C, 2005, 29(5): 495-500.
[4]	ZHOU Hai-Qing , ZOU Bing-Song . Relativistic Effects in Two-Photon Decay of Quarkonium. Chinese Physics C, 2005, 29(6): 555-560.
[5]	KONG Wei , XI Chuan-Ying , YE Bang-Jiao , WENG Hui-Min , ZHOU Xian-Yi , HAN Rong-Dian . Two-Detector Doppler Broadening of Annihilation Radiation in Metals. Chinese Physics C, 2004, 28(11): 1234-1237.
[6]	Sayipjamal Dulat , ZOU Bing-Song , WU Ji-Min , . Angular Distributions of ψ Radiative Decays. Chinese Physics C, 2004, 28(4): 350-358.
[7]	LIN Xiao-Yan , LIU Lian-Shou . Scale for the Production of Jets in High Energy e⁺e^－ Collisions. Chinese Physics C, 2003, 27(1): 7-11.
[8]	WANG Shu-Hong , WANG Jiu-Qing , YE Qiang , LE Qi . Minimization of Primary Electron Beam Radius at the Positron Production Target. Chinese Physics C, 2002, 26(12): 1302-1308.
[9]	GOU Wei-Ping , PEI Guo-Xi . Design of BEPCⅡ Positron Source. Chinese Physics C, 2002, 26(3): 279-285.
[10]	He Yuanjin , Xin Mingrui , Zhang Tianbao . Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe. Chinese Physics C, 1994, 18(8): 752-756.
[11]	GUO Xue-Zhe , WENG Hui-Min , HAN Rong-Dian . The Observation of Positron Surface State of Germanium. Chinese Physics C, 1992, 16(11): 961-964.
[12]	ZHANG Tian-Bao , YANG Guang-Ming , GUO Bao-Nian , WANG Hai-Dong . Experimental Investigation for the Decay Rate of Orthopositronium. Chinese Physics C, 1992, 16(7): 577-581.
[13]	WU Ji-Min . Electron,Positron Distribution Function. Chinese Physics C, 1992, 16(6): 518-526.
[14]	PEI Guo-Xi , XIE Jia-Lin , ZHOU Shu , SUN Song-Lan . OPTIMIZATION OF BEPC POSITRON SOURCE. Chinese Physics C, 1990, 14(2): 110-117.
[15]	CHEN Ji-Qiang , LONG Qi-Wei , WANG Ke-Lin . THREE STATE MODEL OF VACANCIES AND SMALL VACANCY CLUSTERS AND TEMPERATURE DEPENDENCE OF SPECIFIC TRAPPING RATE. Chinese Physics C, 1990, 14(2): 97-101.
[16]	SHEN Ji-Qiang , LONG Qi-Wei , ZHOU Jin , WANG Ke-Lin . ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA. Chinese Physics C, 1989, 13(10): 879-885.
[17]	JIA Qi-Ka , TANG Xiao-Wei , YANG Bao-Zhong , LI Yao-Qing , YE Jing-Bo . A MEASUREMENT OF THE LINEAR POLARIZATION OF PHOTONS EMITTED FROM THREE PHOTON ANNIHILATION OF POSITRONS & ELECTRONS. Chinese Physics C, 1987, 11(3): 293-299.
[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.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2298)
PDF Downloads(447)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
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.