Isotopic dependence of production cross sections of superheavy nuclei in hot fusion reactions
文献类型：期刊论文
| 作者 | Feng Zhao-Qing ; Jin Gen-Ming; Fu Fen; Li Jun-Qing
|
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 31期号:4页码:366-370 |
| 关键词 | superheavy nuclei dinuclear system model production cross sections isotope dependence |
| ISSN号 | 0254-3052 |
| 英文摘要 | The dinuclear system model has been further developed by introducing the barrier distribution function method in the process of heavy-ion capture and fusion to synthesize superheavy nuclei. The capture of two colliding nuclei, formation and de-excitation process of compound nucleus are decribed by using empirical coupled channel model, solving master equation numerically and statistical evaporation model, respectively. Within the framework of the dinuclear system model, the fusion-evaporation excitation functions of the systems Ca-48(Am-243, 3n-5n) (288-286)115 and Ca-48(Cm-248, 3n-5n)(293-291)116 are calculated, which are used for synthesizing new superheavy nuclei at Dubna in recent years. Isotopic dependence of production cross sections with double magic nucleus Ca-48 bombarding actinide targets U, Np, Pu, Am, Cm to synthesize superheavy nuclei with charged numbers Z=112-116 is analyzed systematically. Based on these analysis, the optimal projectile-target combination and the optimal excitation energy are proposed. It is shown that shell correction energy and neutron separation energy will play an important role on the isotopic dependence of production cross sections of superheavy nuclei. |
| WOS关键词 | DINUCLEAR-SYSTEM MODEL ; COLLISIONS ; ELEMENTS ; (265)BH |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000245366700009 |
| 出版者 | SCIENCE PRESS |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/6021]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） |
| 通讯作者 | Feng Zhao-Qing |
| 作者单位 | 1.Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng Zhao-Qing,Jin Gen-Ming,Fu Fen,et al. Isotopic dependence of production cross sections of superheavy nuclei in hot fusion reactions[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2007,31(4):366-370. |
| APA | Feng Zhao-Qing,Jin Gen-Ming,Fu Fen,&Li Jun-Qing.(2007).Isotopic dependence of production cross sections of superheavy nuclei in hot fusion reactions.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,31(4),366-370. |
| MLA | Feng Zhao-Qing,et al."Isotopic dependence of production cross sections of superheavy nuclei in hot fusion reactions".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 31.4(2007):366-370. |
入库方式： OAI收割
来源：近代物理研究所
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