THE OBSERVATION ON o-<EM>P</EM><SUB>s</SUB> ANNIHILATION IN SILICA AEROGEL BY COMBINED SPECTROMETER

ZHANG Tian-Bao; WANG Yun-Yu; ZHANG Chang-Chun; WANG Shao-Jie

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> 1983, Vol. 7> Issue(1) : 1-4

THE OBSERVATION ON o-P_s ANNIHILATION IN SILICA AEROGEL BY COMBINED SPECTROMETER

Abstract
HTML
Reference
Related

PDF

Abstract：
The yields and energy spectra of the various components of o-P_s annihilation in silica aerogel are observed using the combined spectrometer. It is shown that the processes of P_s formation and annihilation in ultrafine grains of SiO₂ aerogel are basically consistent with the diffusion model, but the grain surface effect can not be neglected. Comparing the Dopplar broadening spectra, it is understood that the pick-off process of the longest component possesses the lower annihilation momentum than that of the free positron annihilation.

References

[1]

R. Paulin and G. Ambrosino, J. Phys., Paris., 29(1968), 263.[2] M.Debswsha. J. Kukulka and J. Wesolowski, Acta Physica Polonict VA48-N4(1975), 538.[3] S. Y. Chuang and S. J. Tao, Canadian J. Phys., 51(1973), 820.[4] D. W. Gidley, E. A. Marko and A. Rich, Phys. Rev. Lett., 36(1976), 395.[5] W. Brandt and R. Paulin, Phys. Rev. Lett., 21(1968), 193.

[1]	WANG Zai-Jun , REN Zhong-Zhou , DONG Tie-Kuang . Probe the 2s_1/2 and 1d_3/2 state level inversion with electron-nucleus scattering. Chinese Physics C, 2014, 38(2): 024102. doi: 10.1088/1674-1137/38/2/024102
[2]	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.
[3]	WANG Jia-Ou , KUI Re-Xi , WU Xiang , HONG Cai-Hao , ZHONG Jun , SU Run , QIAN Hai-Jie , WU Zi-Yu . Study of Electronic Structure in SrTi1-xRuxO3. Chinese Physics C, 2005, 29(S1): 47-50.
[4]	GUO Fen-Kun , SHENG Peng-Nian , JIAN Huan-Qing , PING Rong-Gang . Decay Υ(3S)→Υ(1S)π＋π－and a Possible bbqq State. Chinese Physics C, 2005, 29(12): 1121-1124.
[5]	CHI Shao-Peng , MO Xiao-Hu , ZHU Yong-Sheng . Measurement of the Integrated Luminosity at s(1/2)=3.650,3.686 GeV for the BES Detector. Chinese Physics C, 2004, 28(11): 1135-1140.
[6]	WANG Ping , YUAN Chang-Zheng , MO Xiao-Hu . Contribution of One-Photon Annihilation at ψ(2S) in e⁺e^－ Experiment. Chinese Physics C, 2003, 27(6): 465-473.
[7]	LI Zeng-Hua , LU Guang-Cheng , ZUO Wei . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅶ) Proton and Neutron ¹S₀ Superfluidity in Neutron Star Matter. Chinese Physics C, 2003, 27(12): 1084-1088.
[8]	QIAN Hai-Jie , SU Run , WANG Jia-Ou , WU Xiang , DONG Yu-Hui , WU Zi-Yu , WANG Yu-Tian , WEI Long , , . O 1s2p2p Auger Process Investigation of the Pr_1-x Sr_x MnO₃ System. Chinese Physics C, 2003, 27(S1): 40-44.
[9]	Kurash Ibrahim , WU Zi-Yu , QIAN Hai-Jie , LIU Feng-Qin , XIAN Ding-Chang . Valence Band Photoelectron Investigation of Pr_1-xSr_xMnO₃ System. Chinese Physics C, 2001, 25(S1): 28-32.
[10]	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.
[11]	SHEN Qi-Xing , YU Hong . Determining the Spin and Parity of Particle X for the Process J/ψ→V₁,X→V₂+V₃ by Using the Generalized Moment Analysis Method. Chinese Physics C, 1993, 17(6): 503-510.
[12]	LUO Zhen-Fei , QIU Xi-Jun . Mass Splittings of L=1 States of Quarkonium and Lorentz Structure of Long-rang Confinement Potential. Chinese Physics C, 1992, 16(8): 716-722.
[13]	PAN Feng . Vector Coherent State Representations of SU₃ in U₁ U₁ Basis. Chinese Physics C, 1991, 15(1): 80-86.
[14]	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.
[15]	ZHOU Xian-Yi , ZHANG Han , YUAN Song-Liu , WANG Shun-Xi , ZHU Jing-Sheng , ZHANG Qi-Rui . 1D-ACAR Spectra of YBa_2－xSr_xCu₃O_y. Chinese Physics C, 1991, 15(11): 961-965.
[16]	XU Min , ZENG Xiang-Tao , HUANG Kai-Ping , ZHANG Tian-Bao . EFFECT OF THE ENERGY LOSS PROCESS ON THE ANNIHILATION OF ORTHOPOSITRONIUM IN SILICA AEROGEL. Chinese Physics C, 1988, 12(4): 447-454.
[17]	ZENG Jia-Gang , LIAO Ji-Zhi . INTERACTING BOSON MODEL FOR EVEN-EVEN NUCLEI POSSESSED OF 1⁺AND 3⁺ BANDS IN THE ROTATIONAL RIGION. Chinese Physics C, 1987, 11(3): 409-418.
[18]	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.
[19]	LIU YONG , TIAN XIAO-CEN , YANG TSE-SEN . A MICROSCOPIC CALCULATION OF THE COLLECTIVE SPECTRA OF THE NEUTRON CONFIGURATIONS (CLOSED SHELLS)⁵⁰ (d_5/2g_7/2s_1/2d_3/2h_1/2)¹² BASED ON DYSON REPRESENTATION OF THE INTERACTING BOSON MODEL. Chinese Physics C, 1983, 7(6): 724-734.
[20]	MA ZHONG-QI , DONG FANG-XIAO , YUE ZONG-WU , ZHOU XIAN-JIAN , XUE PEI-YOU . DISCUSSION OF A SU(2)×U(1)×S₃ MODEL WITH TWO HIGGS DOUBLETS AND CALCULATION OF CABIBBO-LIKE-PARAMETERS. Chinese Physics C, 1981, 5(3): 298-306.

Access

Get Citation

ZHANG Tian-Bao, WANG Yun-Yu, ZHANG Chang-Chun and WANG Shao-Jie. THE OBSERVATION ON o-P_s ANNIHILATION IN SILICA AEROGEL BY COMBINED SPECTROMETER[J]. Chinese Physics C, 1983, 7(1): 1-4.

ZHANG Tian-Bao, WANG Yun-Yu, ZHANG Chang-Chun and WANG Shao-Jie. THE OBSERVATION ON o-P_s ANNIHILATION IN SILICA AEROGEL BY COMBINED SPECTROMETER[J]. Chinese Physics C, 1983, 7(1): 1-4. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(1897)
PDF Downloads(437)
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 OBSERVATION ON o-P_s ANNIHILATION IN SILICA AEROGEL BY COMBINED SPECTROMETER

Corresponding author: ZHANG Tian-Bao,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1983-02-05

Abstract: The yields and energy spectra of the various components of o-P_s annihilation in silica aerogel are observed using the combined spectrometer. It is shown that the processes of P_s formation and annihilation in ultrafine grains of SiO₂ aerogel are basically consistent with the diffusion model, but the grain surface effect can not be neglected. Comparing the Dopplar broadening spectra, it is understood that the pick-off process of the longest component possesses the lower annihilation momentum than that of the free positron annihilation.