Chinese Physics C > 1995, Vol. 19 > Issue(3): 203-208

First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide¹⁹Na

Institute of Modern Physics, The Chinese Academy of Sciences,Lanzhou 7300001 Institute of High Energy Physics,The chinese Academy of Sciences, Beijing 100039

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Abstract：
¹⁹Na, a nuclide on proton drip line, was studied by ²⁰Ne(p,2n) ¹⁹Na reaction.Experiment was performed on the proton linear accelerator at institute of High Energy Physics, The Chinese Academy of Sciences. The new decay mode of β-delayed proton decay was observed for the first time. The half-life of ¹⁹Na was determined to be 47±20ms and its proton energy was measured to be 1.10±0.08MeV which is corresponding to super-allowed beta transition of ¹⁹Na to excited state of 7.62MeV,the isospin analog state with T=3/2 in ¹⁹Ne, and subsquent proton emission to the ground state of ¹⁸F.

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Xu Xiaoji, Ma Ruichang, Huang Wenxue, Hu Zhiqiang, Guo Junsheng, Guo Yingxiang, Xu Lianlian, Liu Hongye, Luo Yixiao, Wang Shuhong, Kong Dengming and Qiao Jimin. First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide ¹⁹Na[J]. Chinese Physics C, 1995, 19(3): 203-208.

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

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide¹⁹Na

Corresponding author:Xu Xiaoji,

Institute of Modern Physics, The Chinese Academy of Sciences,Lanzhou 7300001 Institute of High Energy Physics,The chinese Academy of Sciences, Beijing 100039

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1995-03-05

Abstract:¹⁹Na, a nuclide on proton drip line, was studied by²⁰Ne(p,2n)¹⁹Na reaction.Experiment was performed on the proton linear accelerator at institute of High Energy Physics, The Chinese Academy of Sciences. The new decay mode of β-delayed proton decay was observed for the first time. The half-life of¹⁹Na was determined to be 47±20ms and its proton energy was measured to be 1.10±0.08MeV which is corresponding to super-allowed beta transition of¹⁹Na to excited state of 7.62MeV,the isospin analog state with T=3/2 in¹⁹Ne, and subsquent proton emission to the ground state of¹⁸F.

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First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide¹⁹Na

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