Measurement of the Radiation Energy in Parapositronium Two Gamma Annihilation

Zhang Tianbao; Wang Haidong; Shen Zhiqi

Chinese Physics C> 1991, Vol. 15> Issue(S3) : 227-234

Measurement of the Radiation Energy in Parapositronium Two Gamma Annihilation

Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The γ ray energy from the parapositronium 2γ annihilation is measured as 510998.7(2.5) eV by using a silica aerogel sample with oxygen gas filled as the positronium source and by comparing with the known γ energy 511856.2(2.3) eV of the ¹⁰⁶Ru γ ray. The result, after correction of the binding energy of Ps,is compared with the adjusted value of the electron rest mass.

[1]	Mariana Dutra , Odilon Louren , Or Hen , Eliezer Piasetzky , Débora P. Menezes . The symmetry energy γ parameter of relativistic mean-field models. Chinese Physics C, 2018, 42(6): 064105. doi: 10.1088/1674-1137/42/6/064105
[2]	Jian-Yong Zhang , Xiao Cai , Xiao-Hu Mo , Di-Zhou Guo , Jian-Li Wang , Bai-Qi Liu , M. N. Achasov , A. A. Krasnov , N. Yu. Muchnoi , E. E. Pyata , E. V. Mamoshkina , F. A. Harris . Upgrade of beam energy measurement system at BEPC-Ⅱ. Chinese Physics C, 2016, 40(7): 076001. doi: 10.1088/1674-1137/40/7/076001
[3]	Guang-Zhi Xu , Gang Li , Yi-Jie Li , Kui-Yong Liu , Yu-Jie Zhang . Interference effects on Higgs mass measurement in e⁺e^-→H(γγ)Z at CEPC. Chinese Physics C, 2016, 40(3): 033101. doi: 10.1088/1674-1137/40/3/033101
[4]	ZHANG Fei-Hong , YU Bo-Xiang , HU Wei , YANG Ma-Sheng , CAO Guo-Fu , CAO Jun , ZHOU Li . Measurement of the liquid scintillator nonlinear energy response to electron. Chinese Physics C, 2015, 39(1): 016003. doi: 10.1088/1674-1137/39/1/016003
[5]	SHEN Shan-Wei , WANG Yan-Fang , SHU Hang , TANG Xiao , WEI Cun-Feng , SONG Yu-Shou , SHI Rong-Jian , WEI Long . Experimental measurement of radiation dose in a dedicated breast CT system. Chinese Physics C, 2014, 38(3): 038201. doi: 10.1088/1674-1137/38/3/038201
[6]	WANG Yan-Ping , LUO Yin-Hong , WANG Wei , ZHANG Ke-Ying , GUO Hong-Xia , GUO Xiao-Qiang , WANG Yuan-Ming . ⁶⁰Co gamma radiation effect on AlGaN/AlN/GaN HEMT devices. Chinese Physics C, 2013, 37(5): 056201. doi: 10.1088/1674-1137/37/5/056201
[7]	TANG Zhi-Cheng , YUAN Qiang , BI Xiao-Jun , CHEN Guo-Ming . On the detectability of Galactic dark matter annihilation into monochromatic gamma-rays. Chinese Physics C, 2011, 35(8): 725-734. doi: 10.1088/1674-1137/35/8/006
[8]	WANG Wen-Feng (for the BABAR collaboration) . Precise measurement of the e⁺e^－→π⁺π^－(γ) cross section with the initial state radiation method at BABAR. Chinese Physics C, 2010, 34(6): 692-697. doi: 10.1088/1674-1137/34/6/014
[9]	Baldini Ferroli . BABAR measurement of baryon time-like form factors via initial state radiation. Chinese Physics C, 2010, 34(6): 860-862. doi: 10.1088/1674-1137/34/6/040
[10]	SU You-Wu , LI Zong-Qiang , LI Wu-Yuan , WANG Gui-Ling . Neutron dose measurement in carbon ion radiation therapy at HIRFL (IMP). Chinese Physics C, 2010, 34(5): 548-550. doi: 10.1088/1674-1137/34/5/006
[11]	MO Xiao-Hu , CHU Yuan-Ping , DONG Hai-Yi , FU Cheng-Dong , LI Xiao-Nan , LIU Qian , QU Hua-Min , QIN Qing , SHEN Cheng-Ping , WANG Yi-Fang , XU Jin-Qiang , ZHANG Jian-Yong , ZHANG Qing-Jiang , ZHANG Yin-Hong , ZHANG Tian-Bao , ZHAO Zhuo . Beam energy measurement system at BEPCⅡ. Chinese Physics C, 2010, 34(6): 912-917. doi: 10.1088/1674-1137/34/6/050
[12]	HE Bao-Ping , YAO Zhi-Bin , ZHANG Feng-Qi . A comparison of ionizing radiation damage in CMOS devices from ⁶⁰Co gamma rays, electrons and protons. Chinese Physics C, 2009, 33(6): 436-439. doi: 10.1088/1674-1137/33/6/006
[13]	MO Xiao-Hu , ZHANG Jian-Yong , ZHANG Tian-Bao , ZHANG Qing-Jiang , Achasov Mikhail , FU Cheng-Dong , Muchnoi Nikolay , QIN Qing , QU Hua-Min , WANG Yi-Fang , WU Jing-Min , XU Jin-Qiang , YU Bo-Xiang . Measurement of radiation dose at the north interaction point of BEPCⅡ. Chinese Physics C, 2009, 33(10): 914-921. doi: 10.1088/1674-1137/33/10/017
[14]	MO Xiao-Hu , FU Cheng-Dong , ZHANG Jian-Yong , QIN Qing , QU Hua-Min , WANG Yi-Fang , XU Jin-Qiang , ZHANG Tian-Bao . Working principles of the energy measurement system at BEPCⅡ. Chinese Physics C, 2008, 32(12): 995-1002. doi: 10.1088/1674-1137/32/12/011
[15]	Peng Liangqiang , Zhang Tianbao , Wang Haidong , Meng Bonian , Yin Guoli . Improved Measurement of γ-Energy from Parapositronium 2γ-Decay. Chinese Physics C, 1995, 19(11): 987-990.
[16]	He Yuanjin , Xin Mingrui , Zhang Tianbao . Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe. Chinese Physics C, 1994, 18(S3): 315-319.
[17]	Zhang Tianbao , Wang Shuying , Wang Haidong , Shen Zhiqi , Meng Bonian . Precise Measurement of Gamma Ray Energies with HPGe Spectrometer by Slithering Comparison Method. Chinese Physics C, 1993, 17(S1): 25-31.
[18]	ZHANG Tian-Bao , WANG Hai-Dong , SHEN Zhi-Qi . Measurement of the Gamma Ray Energy in Parapositronium 2γ Decay. Chinese Physics C, 1991, 15(6): 486-492.
[19]	Ren Jingru , Kuang Haohuai , Huo Anxiang , Lu Suiling , Su Shi , Wang Yunxin , Wang Chengrui , Zhang Naijian , Cao Peiyuan , Li Jinyu , Zou Baotang , Wang Shizhi , Li Guangju , Bai Guangzhi , Mu Jun , Zhou Wende . A Superhigh Energy Gamma-Ray Family Event in the Form of Two Concentric Rings. Chinese Physics C, 1989, 13(S1): 9-14.
[20]	Qiu Zhongping , Cai Xu . Cylindrical Bag Model of Particle Production in High Energy e⁺e^- Annihilation. Chinese Physics C, 1988, 12(S4): 359-364.

Access

Get Citation

Zhang Tianbao, Wang Haidong and Shen Zhiqi. Measurement of the Radiation Energy in Parapositronium Two Gamma Annihilation[J]. Chinese Physics C, 1991, 15(S3): 227-234.

Zhang Tianbao, Wang Haidong and Shen Zhiqi. Measurement of the Radiation Energy in Parapositronium Two Gamma Annihilation[J]. Chinese Physics C, 1991, 15(S3): 227-234. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1990-11-13

Fund

Supported by the National Natural Science Foundation of China.

Article Metric

Article Views(1401)
PDF Downloads(2)
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

Measurement of the Radiation Energy in Parapositronium Two Gamma Annihilation

Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing, China

Received Date: 1990-11-13

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: The γ ray energy from the parapositronium 2γ annihilation is measured as 510998.7(2.5) eV by using a silica aerogel sample with oxygen gas filled as the positronium source and by comparing with the known γ energy 511856.2(2.3) eV of the ¹⁰⁶Ru γ ray. The result, after correction of the binding energy of Ps,is compared with the adjusted value of the electron rest mass.

Measurement of the Radiation Energy in Parapositronium Two Gamma Annihilation

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Measurement of the Radiation Energy in Parapositronium Two Gamma Annihilation

HTML

目录