{"title":"在聚变反应中合成超重元素 $$Z=121$$ 的可能性","authors":"Ming-Hao Zhang, Yu-Hai Zhang, Ying Zou, Xiu-Xiu Yang, Gen Zhang, Feng-Shou Zhang","doi":"10.1007/s41365-024-01452-y","DOIUrl":null,"url":null,"abstract":"<p>Based on the dinuclear system model, the calculated evaporation residue cross sections matched well with the current experimental results. The synthesis of superheavy elements <span>\\(Z=121\\)</span> was systematically studied through combinations of stable projectiles with <span>\\(Z = 21\\)</span>–30 and targets with half-lives exceeding 50 d. The influence of mass asymmetry and isotopic dependence on the projectile and target nuclei was investigated in detail. The reactions <span>\\(^{254}\\)</span>Es (<span>\\(^{46}\\)</span>Ti, 3n) <span>\\(^{297}121\\)</span> and <span>\\(^{252}\\)</span>Es (<span>\\(^{46}\\)</span>Ti, 3n) <span>\\(^{295}121\\)</span> were found to be experimentally feasible for synthesizing superheavy element <span>\\(Z = 121\\)</span>, with maximal evaporation residue cross sections of 6.619 and 4.123 fb at 219.9 and 223.9 MeV, respectively.</p>","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Possibilities for the synthesis of superheavy element $$Z=121$$ in fusion reactions\",\"authors\":\"Ming-Hao Zhang, Yu-Hai Zhang, Ying Zou, Xiu-Xiu Yang, Gen Zhang, Feng-Shou Zhang\",\"doi\":\"10.1007/s41365-024-01452-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Based on the dinuclear system model, the calculated evaporation residue cross sections matched well with the current experimental results. The synthesis of superheavy elements <span>\\\\(Z=121\\\\)</span> was systematically studied through combinations of stable projectiles with <span>\\\\(Z = 21\\\\)</span>–30 and targets with half-lives exceeding 50 d. The influence of mass asymmetry and isotopic dependence on the projectile and target nuclei was investigated in detail. The reactions <span>\\\\(^{254}\\\\)</span>Es (<span>\\\\(^{46}\\\\)</span>Ti, 3n) <span>\\\\(^{297}121\\\\)</span> and <span>\\\\(^{252}\\\\)</span>Es (<span>\\\\(^{46}\\\\)</span>Ti, 3n) <span>\\\\(^{295}121\\\\)</span> were found to be experimentally feasible for synthesizing superheavy element <span>\\\\(Z = 121\\\\)</span>, with maximal evaporation residue cross sections of 6.619 and 4.123 fb at 219.9 and 223.9 MeV, respectively.</p>\",\"PeriodicalId\":19177,\"journal\":{\"name\":\"Nuclear Science and Techniques\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Science and Techniques\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1007/s41365-024-01452-y\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Science and Techniques","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s41365-024-01452-y","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Possibilities for the synthesis of superheavy element $$Z=121$$ in fusion reactions
Based on the dinuclear system model, the calculated evaporation residue cross sections matched well with the current experimental results. The synthesis of superheavy elements \(Z=121\) was systematically studied through combinations of stable projectiles with \(Z = 21\)–30 and targets with half-lives exceeding 50 d. The influence of mass asymmetry and isotopic dependence on the projectile and target nuclei was investigated in detail. The reactions \(^{254}\)Es (\(^{46}\)Ti, 3n) \(^{297}121\) and \(^{252}\)Es (\(^{46}\)Ti, 3n) \(^{295}121\) were found to be experimentally feasible for synthesizing superheavy element \(Z = 121\), with maximal evaporation residue cross sections of 6.619 and 4.123 fb at 219.9 and 223.9 MeV, respectively.
期刊介绍:
Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research.
Scope covers the following subjects:
• Synchrotron radiation applications, beamline technology;
• Accelerator, ray technology and applications;
• Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine;
• Nuclear electronics and instrumentation;
• Nuclear physics and interdisciplinary research;
• Nuclear energy science and engineering.