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]	ZHOU Chun-Lan,ZHANG Tian-Bao,MA Chuang-Xing,ZHANG Zhi-Ming,CAO Xing-Zhong,WANG Bao-Yi,WEI Long. The Analysis of 3γ/2γ in the Measurement of Positron Annihilation Doppler-broadening Spectroscopy. Chinese Physics C, 2006, 30(1): 84-87.
[2]	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.
[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]	GOU Wei-Ping,PEI Guo-Xi. Design of BEPCⅡ Positron Source. Chinese Physics C, 2002, 26(3): 279-285.
[9]	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.
[10]	WU Ji-Min. Electron,Positron Distribution Function. Chinese Physics C, 1992, 16(6): 518-526.
[11]	XIONG Liang-Yue,LONG Qi-Wei. POSITRON DISLOCATION TRAPPING MODEL INCLUDING THE EFFECTS OF DETRAPPING OF POSITRON FROM DISLOCATIONS. Chinese Physics C, 1990, 14(9): 769-776.
[12]	LIU Jian-Feng,HUO Yu-Kun,YUAN Zhu-Shu. CORRELATION EFFECT IN PHOTON TRANSMISSION COEFFICIENTS FOR A=40—70 EVEN-NEUTRON NUCLIDES. Chinese Physics C, 1990, 14(5): 469-476.
[13]	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.
[14]	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.
[15]	XIONG Liang-Yue. A PHENOMENOLOGICAL MODEL FOR POSITRON TRAPPING AT DISLOCATIONS. Chinese Physics C, 1988, 12(4): 433-439.
[16]	YU Hong. QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY. Chinese Physics C, 1988, 12(6): 754-760.
[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]	XIONG Xing-Min. A STUDY OF DEFECTS DEFECTS IN GaAs BY POSITRON ANNIHILATION. Chinese Physics C, 1986, 10(4): 459-465.
[19]	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.
[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(3421)
PDF Downloads(449)
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 of²²Na 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.