Production of heavy neutron-rich nuclei with radioactive beams in multinucleon transfer reactions

Production of heavy neutron-rich nuclei with radioactive beams in multinucleon transfer reactions
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在多核子转移反应中用放射性束产生重中子富核

DOI:
10.1007/s41365-017-0266-z
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发表时间:
2017-06
影响因子:
2.8
通讯作者:
Zhang Feng Shou
Zhang Feng Shou
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Li Cheng;Wen Peiwei;Li Jingjing;Zhang Gen;Li Bing;Zhang Feng Shou

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在双核系统模型的框架下,利用Pb和Pb的多核转移反应研究了重中子富核的产生机制。研究了反应体系Pb在接近势垒能下的靶状碎片的蒸发残余截面。结果表明,贫中子侧最终同位素产生截面对入射能量非常敏感,而富中子侧则不敏感。比较稳定弹丸和放射性弹丸轰击Pb反应的同位素产生截面,我们发现富中子放射性束可以显着增加重富中子核的产生截面。
The production mechanism of heavy neutron-rich nuclei is investigated by using the multinucleon transfer reactions ofPb andPb in the framework of a dinuclear system model. The evaporation residual cross sections of target-like fragments are studied with the reaction systemPb at near barrier energies. The results show that the final isotopic production cross sections in the neutron-deficient side are very sensitive to incident energy while it is not sensitive in the neutron-rich side. Comparing the isotopic production cross sections for the reactions ofPb bombarded with stable and radioactive projectiles, we find that neutron-rich radioactive beams can significantly increase the production cross sections of heavy neutron-rich nuclei.
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