N. Imai , M. Dozono , S. Bae , S. Michimasa , T. Sumikama , S. Ota , S. Hayakawa , J.W. Hwang , K. Iribe , C. Iwamoto , S. Kawase , K. Kawata , N. Kitamura , S. Masuoka , K. Nakano , P. Schrock , D. Suzuki , R. Tsunoda , K. Wimmer , T. Chillery , S. Shimoura
{"title":"在RIBF中使用OEDO和SHARAQ替代中子捕获速率的反应","authors":"N. Imai , M. Dozono , S. Bae , S. Michimasa , T. Sumikama , S. Ota , S. Hayakawa , J.W. Hwang , K. Iribe , C. Iwamoto , S. Kawase , K. Kawata , N. Kitamura , S. Masuoka , K. Nakano , P. Schrock , D. Suzuki , R. Tsunoda , K. Wimmer , T. Chillery , S. Shimoura","doi":"10.1016/j.nuclphysa.2025.123248","DOIUrl":null,"url":null,"abstract":"<div><div>To determine the neutron capture rates of radioactive nuclei, we have developed an experimental technique using surrogate reactions, specifically the (<em>d, p</em>) reaction in inverse kinematics. The gamma-emission probabilities from unbound states were deduced by identifying the outgoing reaction residues, instead of detecting the de-excitation <span><math><mi>γ</mi></math></span> rays from the compound states. Such experiments have become feasible through the use of the OEDO device, which enables beam deceleration and focusing, and the SHARAQ spectrometer at RIBF. We applied this technique to measure the neutron capture rates of <span><math><msup><mrow></mrow><mn>79</mn></msup></math></span>Se for nuclear transmutation data, and of <span><math><msup><mrow></mrow><mn>130</mn></msup></math></span>Sn for studies related to the <span><math><mi>r</mi></math></span>-process. In this contribution, we discuss the neutron-capture cross sections of <span><math><msup><mrow></mrow><mn>79</mn></msup></math></span>Se using the surrogate ratio method, and introduce the updated experimental setup for the <span><math><msup><mrow></mrow><mn>130</mn></msup></math></span>Sn measurement.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1064 ","pages":"Article 123248"},"PeriodicalIF":2.5000,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The surrogate reactions for the neutron-capture rate using OEDO and SHARAQ in RIBF\",\"authors\":\"N. Imai , M. Dozono , S. Bae , S. Michimasa , T. Sumikama , S. Ota , S. Hayakawa , J.W. Hwang , K. Iribe , C. Iwamoto , S. Kawase , K. Kawata , N. Kitamura , S. Masuoka , K. Nakano , P. Schrock , D. Suzuki , R. Tsunoda , K. Wimmer , T. Chillery , S. Shimoura\",\"doi\":\"10.1016/j.nuclphysa.2025.123248\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>To determine the neutron capture rates of radioactive nuclei, we have developed an experimental technique using surrogate reactions, specifically the (<em>d, p</em>) reaction in inverse kinematics. The gamma-emission probabilities from unbound states were deduced by identifying the outgoing reaction residues, instead of detecting the de-excitation <span><math><mi>γ</mi></math></span> rays from the compound states. Such experiments have become feasible through the use of the OEDO device, which enables beam deceleration and focusing, and the SHARAQ spectrometer at RIBF. We applied this technique to measure the neutron capture rates of <span><math><msup><mrow></mrow><mn>79</mn></msup></math></span>Se for nuclear transmutation data, and of <span><math><msup><mrow></mrow><mn>130</mn></msup></math></span>Sn for studies related to the <span><math><mi>r</mi></math></span>-process. In this contribution, we discuss the neutron-capture cross sections of <span><math><msup><mrow></mrow><mn>79</mn></msup></math></span>Se using the surrogate ratio method, and introduce the updated experimental setup for the <span><math><msup><mrow></mrow><mn>130</mn></msup></math></span>Sn measurement.</div></div>\",\"PeriodicalId\":19246,\"journal\":{\"name\":\"Nuclear Physics A\",\"volume\":\"1064 \",\"pages\":\"Article 123248\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2025-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Physics A\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0375947425002349\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Physics A","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0375947425002349","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
The surrogate reactions for the neutron-capture rate using OEDO and SHARAQ in RIBF
To determine the neutron capture rates of radioactive nuclei, we have developed an experimental technique using surrogate reactions, specifically the (d, p) reaction in inverse kinematics. The gamma-emission probabilities from unbound states were deduced by identifying the outgoing reaction residues, instead of detecting the de-excitation rays from the compound states. Such experiments have become feasible through the use of the OEDO device, which enables beam deceleration and focusing, and the SHARAQ spectrometer at RIBF. We applied this technique to measure the neutron capture rates of Se for nuclear transmutation data, and of Sn for studies related to the -process. In this contribution, we discuss the neutron-capture cross sections of Se using the surrogate ratio method, and introduce the updated experimental setup for the Sn measurement.
期刊介绍:
Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.