First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide <SUP>19</SUP>Na

Xu Xiaoji; Ma Ruichang; Huang Wenxue; Hu Zhiqiang; Guo Junsheng; Guo Yingxiang; Xu Lianlian; Liu Hongye; Luo Yixiao; Wang Shuhong; Kong Dengming; Qiao Jimin

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

First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide ¹⁹Na

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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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
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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 Nuclide ¹⁹Na

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 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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First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide ¹⁹Na

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First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide 19Na

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First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide 19Na

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First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide ¹⁹Na

First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide ¹⁹Na