{"title":"Re-Investigation of Entrance Channel Effects in Heavy-Ion Fusion-Fission Dynamics","authors":"P. Dubey, A. Kumar","doi":"10.1134/S1547477124702170","DOIUrl":null,"url":null,"abstract":"<p>The experimental calculation of pre-scission neutron multiplicity is a highly valuable method for determining the fission timescale. In this study, we have determined the fission time for three consecutive shell-closure compound nuclei, namely <sup>212</sup>Rn, <sup>213</sup>Fr, and <sup>214</sup>Ra (with a neutron number of 126) forming via different entrance channel, as well as three consecutive non shell-closure compound nuclei, namely <sup>214</sup>Rn, <sup>215</sup>Fr, and <sup>216</sup>Ra (with a neutron number of 128). To accomplish this, we have utilized the statistical model code JOANNE2 and incorporated available experimental data from EXFOR. Our observation shows that non-shell closure compound nuclei exhibit more dissipation compared to shell closure compound nuclei, resulting in a longer fission time.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"242 - 245"},"PeriodicalIF":0.4000,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei Letters","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1547477124702170","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
引用次数: 0
Abstract
The experimental calculation of pre-scission neutron multiplicity is a highly valuable method for determining the fission timescale. In this study, we have determined the fission time for three consecutive shell-closure compound nuclei, namely 212Rn, 213Fr, and 214Ra (with a neutron number of 126) forming via different entrance channel, as well as three consecutive non shell-closure compound nuclei, namely 214Rn, 215Fr, and 216Ra (with a neutron number of 128). To accomplish this, we have utilized the statistical model code JOANNE2 and incorporated available experimental data from EXFOR. Our observation shows that non-shell closure compound nuclei exhibit more dissipation compared to shell closure compound nuclei, resulting in a longer fission time.
期刊介绍：
The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.
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