{"title":"锂上的(p,n)反应和6Be核的基态","authors":"G.F. Bogdanov, N.A. Vlasov, S.P. Kalinin, B.V. Rybakov, V.A. Sidorov","doi":"10.1016/0891-3919(58)90022-6","DOIUrl":null,"url":null,"abstract":"<div><p>The time-of-flight method has been used to study the neutron spectra from the reactions of <sup>6</sup>Li and <sup>7</sup>Li with 9 MeV protons. Neutron groups were observed corresponding to transitions to the ground state of <sup>6</sup>Be and to the three lower states of <sup>7</sup>Be, as well as a continuous distribution of low-energy neutrons due to more complex reactions. Observation of the group of neutrons from the reaction <sup>6</sup>Li(<em>p,n</em>)<sup>6</sup>Be is the first experimental evidence of the existence of the <sup>6</sup>Be nucleus. The <em>Q</em>-value of the reaction <sup>6</sup>Li(<em>p,n</em>)<sup>6</sup>Be is equal to −5·2 MeV and the width of the ground state of <sup>6</sup>Be is less than 0·3 MeV. The differential cross-sections for neutron formation were measured at angles of 0, 15, 30, 60 and 120°.</p></div>","PeriodicalId":100812,"journal":{"name":"Journal of Nuclear Energy (1954)","volume":"8 1","pages":"Pages 148-155"},"PeriodicalIF":0.0000,"publicationDate":"1958-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0891-3919(58)90022-6","citationCount":"3","resultStr":"{\"title\":\"The (p,n) reaction on lithium and the ground state of the 6Be nucleus\",\"authors\":\"G.F. Bogdanov, N.A. Vlasov, S.P. Kalinin, B.V. Rybakov, V.A. Sidorov\",\"doi\":\"10.1016/0891-3919(58)90022-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The time-of-flight method has been used to study the neutron spectra from the reactions of <sup>6</sup>Li and <sup>7</sup>Li with 9 MeV protons. Neutron groups were observed corresponding to transitions to the ground state of <sup>6</sup>Be and to the three lower states of <sup>7</sup>Be, as well as a continuous distribution of low-energy neutrons due to more complex reactions. Observation of the group of neutrons from the reaction <sup>6</sup>Li(<em>p,n</em>)<sup>6</sup>Be is the first experimental evidence of the existence of the <sup>6</sup>Be nucleus. The <em>Q</em>-value of the reaction <sup>6</sup>Li(<em>p,n</em>)<sup>6</sup>Be is equal to −5·2 MeV and the width of the ground state of <sup>6</sup>Be is less than 0·3 MeV. The differential cross-sections for neutron formation were measured at angles of 0, 15, 30, 60 and 120°.</p></div>\",\"PeriodicalId\":100812,\"journal\":{\"name\":\"Journal of Nuclear Energy (1954)\",\"volume\":\"8 1\",\"pages\":\"Pages 148-155\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1958-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0891-3919(58)90022-6\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Nuclear Energy (1954)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0891391958900226\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Nuclear Energy (1954)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0891391958900226","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The (p,n) reaction on lithium and the ground state of the 6Be nucleus
The time-of-flight method has been used to study the neutron spectra from the reactions of 6Li and 7Li with 9 MeV protons. Neutron groups were observed corresponding to transitions to the ground state of 6Be and to the three lower states of 7Be, as well as a continuous distribution of low-energy neutrons due to more complex reactions. Observation of the group of neutrons from the reaction 6Li(p,n)6Be is the first experimental evidence of the existence of the 6Be nucleus. The Q-value of the reaction 6Li(p,n)6Be is equal to −5·2 MeV and the width of the ground state of 6Be is less than 0·3 MeV. The differential cross-sections for neutron formation were measured at angles of 0, 15, 30, 60 and 120°.
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