Effect of the entrance channel on the synthesis of superheavy elements

被引：143
|
作者：
Giardina, G
Hofmann, S
Muminov, AI
Nasirov, AK
机构：
[1] Univ Messina, Dipartimento Fis, I-98166 Messina, Italy
[2] Gesell Schwerionenforsch, Darmstadt, Germany
[3] Uzbek Acad Sci, Inst Nucl Phys, Heavy Ion Phys Dept, Tashkent 702132, Uzbekistan
[4] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia
来源：
EUROPEAN PHYSICAL JOURNAL A | 2000年 / 8卷 / 02期
关键词：
D O I：
10.1007/s10050-000-4509-7
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Cross-sections for the synthesis of superheavy elements were analyzed using the concept of a dinuclear system. Experimental values for the production of elements Z = 104, 108, 110, 111 and 112 by cold fusion reactions with targets of Pb-208 and Bi-209 were reproduced. The model reveals the importance of entrance channel dynamics and competition between quasi-fission and complete fusion processes. Energy windows were observed which allow capture of the reacting nuclei and formation of the compound nucleus. The quantities were studied which are significant for the interaction dynamics of massive nuclei in the entrance channel.
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页码：205 / 216
页数：12
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