Observation of Beta-Delayed Proton Decay of<sup> 69</sup>Kr

Xu Xiaoji; Huang Wenxue; Ma Ruichang; Gu Zhongdao; Yang Yongfeng; Wang Yanyu; Dong Chengfu

Chinese Physics C> 1997, Vol. 21> Issue(S1) : 443-446

Observation of Beta-Delayed Proton Decay of⁶⁹Kr

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

Abstract
HTML
Reference
Related

PDF

Abstract：
A new group of protons at laboratory energy of 4.07±0.05 MeV with half-life of 32±10 ms was discovered via observing the decay proton spectrum produced in the ³²S + Ca reaction. By reaction channel analysis and comparing with theoretical prediction, this new proton radioactivity was assigned to the β-delayed proton decay of ⁶⁹Kr produced in the ⁴⁰Ca (³²S, 3n) reaction, corresponding to decay of the T=3/2 isobaric analog state in to the ground state of ⁶⁹Se. Combining this measurement with the Coulomb displacement energy calculation yields a mass excess for ⁶⁹Kr of -32.15±0.30 MeV. The partial decay scheme of ⁶⁹Kr was proposed.
- exotic nuclide ,
- beta-delayed particle decay ,
- mass excess

[1]	Virendrasinh Kher , Nayneshkumar Devlani , Ajay Kumar Rai . Excited state mass spectra, decay properties and Regge trajectories of charm and charm-strange mesons. Chinese Physics C, 2017, 41(7): 073101. doi: 10.1088/1674-1137/41/7/073101
[2]	Bin Zhou , Zhi-Feng Sun , Xiang Liu , Shi-Lin Zhu . Chiral corrections to the 1^-+ exotic meson mass. Chinese Physics C, 2017, 41(4): 043101. doi: 10.1088/1674-1137/41/4/043101
[3]	R. A. Briceño , T. D. Cohen , S. Coito , J. J. Dudek , E. Eichten , C. S. Fischer , M. Fritsch , W. Gradl , A. Jackura , M. Kornicer , G. Krein , R. F. Lebed , F. A. Machado , R. E. Mitchell , C. J. Morningstar , M. Peardon , M. R. Pennington , K. Peters , J. M. Richard , C. P. Shen , M. R. Shepherd , T. Skwarnicki , E. S. Swanson , A. P. Szczepaniak , C. Z. Yuan . Issues and Opportunities in Exotic Hadrons. Chinese Physics C, 2016, 40(4): 042001. doi: 10.1088/1674-1137/40/4/042001
[4]	Jue Zhang , Shun Zhou . Electroweak vacuum stability and diphoton excess at 750 GeV. Chinese Physics C, 2016, 40(8): 081001. doi: 10.1088/1674-1137/40/8/081001
[5]	Ying Chen , Wei-Feng Chiu , Ming Gong , Long-Cheng Gui , Zhao-Feng Liu . Exotic vector charmonium and its leptonic decay width. Chinese Physics C, 2016, 40(8): 081002. doi: 10.1088/1674-1137/40/8/081002
[6]	XING Zhi-Zhong , ZHOU Ye-Ling . Geometry of the effective Majorana neutrino mass in the 0νββ decay. Chinese Physics C, 2015, 39(1): 011001. doi: 10.1088/1674-1137/39/1/011001
[7]	J. -B. Bueb . Mass excess of ⁶⁹Br and the rp process. Chinese Physics C, 2015, 39(9): 094103. doi: 10.1088/1674-1137/39/9/094103
[8]	HENG Zong-Qiang , SHU Liang-Ping , MENG Ying , HU Ji-Gang , QIAN Jian-Fa . Competition between α-decay and β-decay for heavy andsuperheavy nuclei. Chinese Physics C, 2014, 38(12): 124101. doi: 10.1088/1674-1137/38/12/124101
[9]	M. R. Abdi . Relativistic particle scattering states with tensor potential and spatially-dependent mass. Chinese Physics C, 2013, 37(5): 053103. doi: 10.1088/1674-1137/37/5/053103
[10]	DU Meng-Lin , CHEN Wei , CHEN Xiao-Lin , ZHU Shi-Lin . Possible J^PC = 0^+- exotic states. Chinese Physics C, 2013, 37(3): 033104. doi: 10.1088/1674-1137/37/3/033104
[11]	M. Ablikim (BESⅢ collaboration) . Observation of a pp mass threshold enhancement in ψ′→π⁺π^－J/ψ(J/ψ→γpp) decay. Chinese Physics C, 2010, 34(4): 421-426. doi: 10.1088/1674-1137/34/4/001
[12]	MA Fei , ZHOU Xiao-Hong , ZHENG Yong , XU Shu-Wei , XIE Yuan-Xiang , CHEN Liang , LEI Xiang-Guo , GUO Ying-Xiang , ZHANG Yu-Hu , LI Zhan-Kui , GUO Song , DING Bing , ZHOU Hou-Bing , LI Guang-Shun , WANG Hai-Xia . Properties of the β-delayed proton decay of ¹⁴⁶Ho. Chinese Physics C, 2010, 34(8): 1082-1084. doi: 10.1088/1674-1137/34/8/008
[13]	M. Nielsen . New exotic charmonium states. Chinese Physics C, 2010, 34(9): 1157-1162. doi: 10.1088/1674-1137/34/9/002
[14]	LIU Jing-Jing . Beta decay of nuclide ⁵⁶Fe, ⁵⁶Co, ⁵⁶Ni, ⁵⁶Mn, ⁵⁶Cr and ⁵⁶V due to strong electron screening in stellar interiors. Chinese Physics C, 2010, 34(11): 1700-1703. doi: 10.1088/1674-1137/34/11/006
[15]	JIANG Song-Sheng , HE Ming , YUE Wei-Hong , QI Bu-Jia , Jing Liu . Excess ³H in the volcanic lakes: evidence for natural nuclear fusion. Chinese Physics C, 2008, 32(S2): 289-293.
[16]	LOU Jian-Ling , LI Zhi-Huan , YE Yan-Lin , JIANG Dong-Xing , HUA Hui , LI Xiang-Qing , ZHANG Shuang-Quan , ZHENG Tao , GE Yu-Cheng , KONG Zan , LI Chen , LU Fei , FAN Feng-Ying , LI Zhong-Yu , CAO Zhong-Xin , MA Li-Ying , XU Hu-Shan , HU Zheng-Guo , WANG Meng , LEI Xiang-Guo , DUAN Li-Min , XIAO Zhi-Gang , HUANG Tian-Heng , FU Fen , ZHANG Xue-Heng , ZHENG Chuan , YU Yu-Hong , TU Xiao-Lin , ZHANG Ya-Peng , YANG Yan-Yun , ZHANG Hong-Bin , TANG Bin , TIAN Yu-Lin , OUYANG Zhen , HUANG Mei-Rong , XU Zhi-Guo , YUE Ke , GAO Qi , . β-delayed neutron decay of ²¹N. Chinese Physics C, 2008, 32(S2): 41-43.
[17]	KONG Zan , LI Zhi-Huan , YE Yan-Lin , JIANG Dong-Xing , HUA Hui , LI Xiang-Qing , ZHANG Shuang-Quan , ZHENG Tao , GE Yu-Cheng , LOU Jian-Ling , LI Chen , . Efficiency calibration of neutron detector array for β decay of exotic nuclei. Chinese Physics C, 2008, 32(S2): 186-189.
[18]	Xu Xiaoji , Huang Wenxue , Ma Ruichang , Gu Zhongdao , Yang Yongfeng , Wang Yanyu , Dong Chengfu . Observation of Beta-Delayed Proton Decay of ⁶⁹Kr. Chinese Physics C, 1997, 21(3): 286-288.
[19]	Xu Xiaoji , Ma Ruichang , Huang Wenxue , Hu Zhiqiang , Gu Junsheng , Guo Yingxiang , Xu Lianlian , Liu Hongye , Luo Yixiao , Wang Shuhong , Kong Dengming , Qiao Jimin . First Observation of β-delayed Proton Decay of Proton Drip Line Nuclide ¹⁹Na. Chinese Physics C, 1995, 19(S2): 109-114.
[20]	Yu Hong , Shen Qixing . J/ψ Hadronic Decay and 1^-+ Exotic State. Chinese Physics C, 1991, 15(S3): 283-287.

Access

Get Citation

Xu Xiaoji, Huang Wenxue, Ma Ruichang, Gu Zhongdao, Yang Yongfeng, Wang Yanyu and Dong Chengfu. Observation of Beta-Delayed Proton Decay of⁶⁹Kr[J]. Chinese Physics C, 1997, 21(S1): 443-446.

Xu Xiaoji, Huang Wenxue, Ma Ruichang, Gu Zhongdao, Yang Yongfeng, Wang Yanyu and Dong Chengfu. Observation of Beta-Delayed Proton Decay of⁶⁹Kr[J]. Chinese Physics C, 1997, 21(S1): 443-446. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1996-08-27

Article Metric

Article Views(550)
PDF Downloads(3)
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

Observation of Beta-Delayed Proton Decay of⁶⁹Kr

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

Received Date: 1996-08-27

Abstract: A new group of protons at laboratory energy of 4.07±0.05 MeV with half-life of 32±10 ms was discovered via observing the decay proton spectrum produced in the ³²S + Ca reaction. By reaction channel analysis and comparing with theoretical prediction, this new proton radioactivity was assigned to the β-delayed proton decay of ⁶⁹Kr produced in the ⁴⁰Ca (³²S, 3n) reaction, corresponding to decay of the T=3/2 isobaric analog state in to the ground state of ⁶⁹Se. Combining this measurement with the Coulomb displacement energy calculation yields a mass excess for ⁶⁹Kr of -32.15±0.30 MeV. The partial decay scheme of ⁶⁹Kr was proposed.

Observation of Beta-Delayed Proton Decay of⁶⁹Kr

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Observation of Beta-Delayed Proton Decay of⁶⁹Kr

HTML

目录

Observation of Beta-Delayed Proton Decay of 69Kr

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Observation of Beta-Delayed Proton Decay of 69Kr

HTML

目录

Observation of Beta-Delayed Proton Decay of⁶⁹Kr

Observation of Beta-Delayed Proton Decay of⁶⁹Kr