Search for \(2p\) decay of the first excited state of \(^{17}\)Ne
Two-proton decay of the \(^{17}\)Ne low-lying states populated in the \(^1\)H(\(^{18}\)Ne,\(d\))\(^{17}\)Ne transfer reaction was studied. The two-proton width \(\Gamma_{2p}\) of the \(^{17}\)Ne first excited \(3/2^-\) state at \(E^*=1.288\) MeV is of importance for the two-proton radioactivity theo...
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Published in | arXiv.org |
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Main Authors | , , , , , , , , , , , , , , , , , , , , |
Format | Paper |
Language | English |
Published |
Ithaca
Cornell University Library, arXiv.org
09.06.2017
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Subjects | |
Online Access | Get full text |
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Summary: | Two-proton decay of the \(^{17}\)Ne low-lying states populated in the \(^1\)H(\(^{18}\)Ne,\(d\))\(^{17}\)Ne transfer reaction was studied. The two-proton width \(\Gamma_{2p}\) of the \(^{17}\)Ne first excited \(3/2^-\) state at \(E^*=1.288\) MeV is of importance for the two-proton radioactivity theory and nuclear-astrophysics applications. A dedicated search for the two-proton emission of this state was performed leading to the new upper limit obtained for the width ratio \(\Gamma_{2p}/\Gamma_{\gamma} < 1.6(3) \times 10^{-4}\). A novel, "combined mass" method is suggested and tested capable to improve the resolution of the experiment which is a prime significance for the study of nuclear states with extremely small particle-to-gamma width ratios \(\Gamma_{\mathrm{part}}/\Gamma_{\gamma}\). The condition \(\Gamma_{\mathrm{part}} \ll \Gamma_{\gamma}\) is quite common for the states of astrophysical interest which makes the proposed approach promising in this field. |
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ISSN: | 2331-8422 |
DOI: | 10.48550/arxiv.1612.04697 |