Observation of the \(^7\)H excited state
The \(^7\)H system was populated in the \(^2\)H(\(^8\)He,\(^3\)He)\(^7\)H reaction with a 26 AMeV \(^8\)He beam. The \(^{7}\)H missing mass energy spectrum, the \(^{3}\)H energy and angular distributions in the \(^7\)H decay frame were reconstructed. The \(^7\)H missing mass spectrum shows a peak wh...
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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
24.06.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The \(^7\)H system was populated in the \(^2\)H(\(^8\)He,\(^3\)He)\(^7\)H reaction with a 26 AMeV \(^8\)He beam. The \(^{7}\)H missing mass energy spectrum, the \(^{3}\)H energy and angular distributions in the \(^7\)H decay frame were reconstructed. The \(^7\)H missing mass spectrum shows a peak which can be interpreted either as unresolved \(5/2^+\) and \(3/2^+\) doublet or one of these states at 6.5(5) MeV. The data also provide indications on the \(1/2^+\) ground state of \(^7\)H located at 2.0(5) MeV with quite a low population cross section of \(\sim 10\) \(\mu\)b/sr within angular range \(\theta_{\text{cm}} \simeq 6^{\circ} - 30^{\circ}\). |
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ISSN: | 2331-8422 |
DOI: | 10.48550/arxiv.1906.07818 |