Observation of an Excited State inH7ewith Unusual Structure
| Autor: | Kensuke Kusaka, Isao Tanihata, Hideaki Otsu, A. A. Ogloblin, A. A. Korsheninnikov, E. A. Kuzmin, E. Yu. Nikolskii, Kenichi Yoshida, Fuyuki Tokanai, Kouji Morimoto, Zs. Fülöp, A. Ozawa, H. Petrascu, B. G. Novatskii, M. S. Golovkov |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 82:3581-3584 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.82.3581 |
| Popis: | The transfer reaction $p{(}^{8}\mathrm{He},d{)}^{7}\mathrm{He}$ has been studied by correlational measurements, and an excited state of ${}^{7}\mathrm{He}$ was observed ( ${E}^{*}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2.9\ifmmode\pm\else\textpm\fi{}0.3\mathrm{MeV}$, $\ensuremath{\Gamma}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2.2\ifmmode\pm\else\textpm\fi{}0.3\mathrm{MeV}$) which decays mainly into ${3n+}^{4}\mathrm{He}$. Most likely, it has a structure with a neutron in an excited state coupled to the ${}^{6}\mathrm{He}$ core which itself is in the excited ${2}^{+}$ state. |
| Databáze: | OpenAIRE |
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