{"title":"利用重离子聚变反应合成的重核和超重核的复合核形成概率","authors":"","doi":"10.1016/j.nucana.2024.100123","DOIUrl":null,"url":null,"abstract":"<div><div>The role of entrance channel parameters such as <span><math><mrow><msup><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>/</mo><mi>A</mi></mrow></math></span>, charge asymmetry <span><math><msub><mrow><mi>α</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span>, mass-asymmetry (<span><math><msub><mrow><mi>η</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span>), charge product (<span><math><mrow><msub><mrow><mi>Z</mi></mrow><mrow><mn>1</mn></mrow></msub><msub><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>), mean fissility <span><math><msub><mrow><mi>χ</mi></mrow><mrow><mi>m</mi></mrow></msub></math></span>, Coulomb interaction parameter and <span><math><mrow><mrow><mo>(</mo><mi>N</mi><mo>−</mo><mi>Z</mi><mo>)</mo></mrow><mo>/</mo><mrow><mo>(</mo><mi>N</mi><mo>+</mo><mi>Z</mi><mo>)</mo></mrow></mrow></math></span> on compound nucleus formation of actinide nuclei using heavy ion fusion reactions were investigated. For the formation of compound nuclei, the considered atomic number range of the projectile varies between <span><math><mrow><mn>5</mn><mo>≤</mo><mi>Z</mi><mo>≤</mo><mn>14</mn></mrow></math></span> and the mass number lies between <span><math><mrow><mn>10</mn><mo>≤</mo><mi>A</mi><mo>≤</mo><mn>34</mn></mrow></math></span>. Similarly, the studied target atomic number varies between <span><math><mrow><mn>78</mn><mo>≤</mo><mi>Z</mi><mo>≤</mo><mn>92</mn></mrow></math></span> and the mass number range is <span><math><mrow><mn>197</mn><mo>≤</mo><mi>A</mi><mo>≤</mo><mn>238</mn></mrow></math></span>. Among these entrance channel parameters, <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>C</mi><mi>N</mi></mrow></msub></math></span> is more systematic for <span><math><mfrac><mrow><mrow><mo>(</mo><mi>N</mi><mo>−</mo><mi>Z</mi><mo>)</mo></mrow></mrow><mrow><mrow><mo>(</mo><mi>N</mi><mo>+</mo><mi>Z</mi><mo>)</mo></mrow></mrow></mfrac></math></span>, <span><math><mrow><msup><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>/</mo><mi>A</mi></mrow></math></span> and <span><math><msub><mrow><mi>α</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span>. In addition to entrance channel parameters, the <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>c</mi><mi>m</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>B</mi><mi>a</mi><mi>s</mi><mi>s</mi></mrow></msub></math></span> also play a significant role in the prediction of <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>C</mi><mi>N</mi></mrow></msub></math></span>. The proposed empirical formulae are applicable to the compound nuclei from Fr to Sg. These findings are significant for the <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>C</mi><mi>N</mi></mrow></msub></math></span> prediction from Fr to Sg.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Compound nucleus formation probability of heavy and superheavy nuclei synthesized using heavy ion fusion reactions\",\"authors\":\"\",\"doi\":\"10.1016/j.nucana.2024.100123\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The role of entrance channel parameters such as <span><math><mrow><msup><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>/</mo><mi>A</mi></mrow></math></span>, charge asymmetry <span><math><msub><mrow><mi>α</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span>, mass-asymmetry (<span><math><msub><mrow><mi>η</mi></mrow><mrow><mi>A</mi></mrow></msub></math></span>), charge product (<span><math><mrow><msub><mrow><mi>Z</mi></mrow><mrow><mn>1</mn></mrow></msub><msub><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>), mean fissility <span><math><msub><mrow><mi>χ</mi></mrow><mrow><mi>m</mi></mrow></msub></math></span>, Coulomb interaction parameter and <span><math><mrow><mrow><mo>(</mo><mi>N</mi><mo>−</mo><mi>Z</mi><mo>)</mo></mrow><mo>/</mo><mrow><mo>(</mo><mi>N</mi><mo>+</mo><mi>Z</mi><mo>)</mo></mrow></mrow></math></span> on compound nucleus formation of actinide nuclei using heavy ion fusion reactions were investigated. For the formation of compound nuclei, the considered atomic number range of the projectile varies between <span><math><mrow><mn>5</mn><mo>≤</mo><mi>Z</mi><mo>≤</mo><mn>14</mn></mrow></math></span> and the mass number lies between <span><math><mrow><mn>10</mn><mo>≤</mo><mi>A</mi><mo>≤</mo><mn>34</mn></mrow></math></span>. Similarly, the studied target atomic number varies between <span><math><mrow><mn>78</mn><mo>≤</mo><mi>Z</mi><mo>≤</mo><mn>92</mn></mrow></math></span> and the mass number range is <span><math><mrow><mn>197</mn><mo>≤</mo><mi>A</mi><mo>≤</mo><mn>238</mn></mrow></math></span>. Among these entrance channel parameters, <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>C</mi><mi>N</mi></mrow></msub></math></span> is more systematic for <span><math><mfrac><mrow><mrow><mo>(</mo><mi>N</mi><mo>−</mo><mi>Z</mi><mo>)</mo></mrow></mrow><mrow><mrow><mo>(</mo><mi>N</mi><mo>+</mo><mi>Z</mi><mo>)</mo></mrow></mrow></mfrac></math></span>, <span><math><mrow><msup><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>/</mo><mi>A</mi></mrow></math></span> and <span><math><msub><mrow><mi>α</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span>. In addition to entrance channel parameters, the <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>c</mi><mi>m</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>B</mi><mi>a</mi><mi>s</mi><mi>s</mi></mrow></msub></math></span> also play a significant role in the prediction of <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>C</mi><mi>N</mi></mrow></msub></math></span>. The proposed empirical formulae are applicable to the compound nuclei from Fr to Sg. These findings are significant for the <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>C</mi><mi>N</mi></mrow></msub></math></span> prediction from Fr to Sg.</div></div>\",\"PeriodicalId\":100965,\"journal\":{\"name\":\"Nuclear Analysis\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Analysis\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2773183924000235\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Analysis","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2773183924000235","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Compound nucleus formation probability of heavy and superheavy nuclei synthesized using heavy ion fusion reactions
The role of entrance channel parameters such as , charge asymmetry , mass-asymmetry (), charge product (), mean fissility , Coulomb interaction parameter and on compound nucleus formation of actinide nuclei using heavy ion fusion reactions were investigated. For the formation of compound nuclei, the considered atomic number range of the projectile varies between and the mass number lies between . Similarly, the studied target atomic number varies between and the mass number range is . Among these entrance channel parameters, is more systematic for , and . In addition to entrance channel parameters, the and also play a significant role in the prediction of . The proposed empirical formulae are applicable to the compound nuclei from Fr to Sg. These findings are significant for the prediction from Fr to Sg.