超重核合成中的靶核形变效应

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超重核合成中的靶核形变效应

刘祖华, 包景东

文章导航 > 原子核物理评论 > 2004 > 21(4): 370-373

刘祖华, 包景东. 超重核合成中的靶核形变效应[J]. 原子核物理评论, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

引用本文:

刘祖华, 包景东. 超重核合成中的靶核形变效应[J]. 原子核物理评论, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

LIU Zu-Hua, BAO Jing-Dong. Effects of Target Deformation on Synthesis of Superheavy Nuclei[J]. Nuclear Physics Review, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

Citation:

LIU Zu-Hua, BAO Jing-Dong. Effects of Target Deformation on Synthesis of Superheavy Nuclei[J]. Nuclear Physics Review, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

超重核合成中的靶核形变效应

doi: 10.11804/NuclPhysRev.21.04.370

1 兰州重离子加速器国家实验室原子核理论中心; 甘肃兰州7300002 北京师范大学低能核物理研究所北京1008753 北京师范大学低能核物理研究所北京1008754中国原子能科学研究院北京102413;

Effects of Target Deformation on Synthesis of Superheavy Nuclei

(1 Center of Theoretical Nuclear Physics; National Laboratory of Heavy Ion Accelerator of Lanzhou; Lanzhou 730000; China; 2 cation; Beijing Normal University; Beijing 100875; 3 Department of Physics; 4 China Institute of Atomic Energy; Beijing 102413; China);

摘要: 利用额外推力模型研究了48Ca+238U超重核合成过程中的靶核形变效应.计算表明,在近垒和垒下能区,靶核形变使超重核合成截面明显增强.对于48Ca+238U反应,由于靶核形变蒸发残余截面增大了几倍.同时与球形靶核相比,形变靶核时蒸发残余激发函数的峰位移向较低能量.Effects of target deformation on the synthesis of superheavy nucleus~(283)112 are investigated in the framework of extra-push model. Our results show that the cross sections of the 3n evaporation residue in the~(48)Ca+~(238)U reaction for the case of β_2=0.275 are several times larger than those of β_2=0. Meanwhile, the peak position of ER excitation function in the case of deformed target is shifted to the lower energy as compared to the one of spherical target.
- 超重核 /
- 额外推力 /
- 熔合截面 /
- 蒸发残余
Abstract: Effects of target deformation on the synthesis of superheavy nucleus~(283)112 are investigated in the framework of extra-push model. Our results show that the cross sections of the 3n evaporation residue in the~(48)Ca+~(238)U reaction for the case of β_2=0.275 are several times larger than those of β_2=0. Meanwhile, the peak position of ER excitation function in the case of deformed target is shifted to the lower energy as compared to the one of spherical target.
- superheavy nuclei /
- extra-push model /
- fusion cross section /
- evaporation residue

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超重核合成中的靶核形变效应

doi: 10.11804/NuclPhysRev.21.04.370

1 兰州重离子加速器国家实验室原子核理论中心; 甘肃兰州7300002 北京师范大学低能核物理研究所北京1008753 北京师范大学低能核物理研究所北京1008754中国原子能科学研究院北京102413;

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2004-12-20

关键词:

摘要: 利用额外推力模型研究了48Ca+238U超重核合成过程中的靶核形变效应.计算表明,在近垒和垒下能区,靶核形变使超重核合成截面明显增强.对于48Ca+238U反应,由于靶核形变蒸发残余截面增大了几倍.同时与球形靶核相比,形变靶核时蒸发残余激发函数的峰位移向较低能量.Effects of target deformation on the synthesis of superheavy nucleus~(283)112 are investigated in the framework of extra-push model. Our results show that the cross sections of the 3n evaporation residue in the~(48)Ca+~(238)U reaction for the case of β_2=0.275 are several times larger than those of β_2=0. Meanwhile, the peak position of ER excitation function in the case of deformed target is shifted to the lower energy as compared to the one of spherical target.

English Abstract

刘祖华, 包景东. 超重核合成中的靶核形变效应[J]. 原子核物理评论, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

引用本文:

刘祖华, 包景东. 超重核合成中的靶核形变效应[J]. 原子核物理评论, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

LIU Zu-Hua, BAO Jing-Dong. Effects of Target Deformation on Synthesis of Superheavy Nuclei[J]. Nuclear Physics Review, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

Citation:

LIU Zu-Hua, BAO Jing-Dong. Effects of Target Deformation on Synthesis of Superheavy Nuclei[J]. Nuclear Physics Review, 2004, 21(4): 370-373. doi: 10.11804/NuclPhysRev.21.04.370

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