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近垒重离子熔合反应中的中子转移效应(英文)

贾会明 林承键 杨磊 徐新星 杨峰 马南茹 孙立杰 王东玺 刘祖华 张焕乔

贾会明, 林承键, 杨磊, 徐新星, 杨峰, 马南茹, 孙立杰, 王东玺, 刘祖华, 张焕乔. 近垒重离子熔合反应中的中子转移效应(英文)[J]. 原子核物理评论, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361
引用本文: 贾会明, 林承键, 杨磊, 徐新星, 杨峰, 马南茹, 孙立杰, 王东玺, 刘祖华, 张焕乔. 近垒重离子熔合反应中的中子转移效应(英文)[J]. 原子核物理评论, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361
JIA Huiming, LIN Chengjian, YANG Lei, XU Xinxing, YANG Feng, MA Nanru, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Role of Neutron Transfers in Initiating Near-barrier Fusion of Heavy-ions[J]. Nuclear Physics Review, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361
Citation: JIA Huiming, LIN Chengjian, YANG Lei, XU Xinxing, YANG Feng, MA Nanru, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Role of Neutron Transfers in Initiating Near-barrier Fusion of Heavy-ions[J]. Nuclear Physics Review, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361

近垒重离子熔合反应中的中子转移效应(英文)

doi: 10.11804/NuclPhysRev.34.03.361
基金项目: 国家重点基础研究发展计划(973计划)项目(2013CB834404);国家自然科学基金资助项目(11375268,11475263,U1432246,U1432127,11505293,11635015)
详细信息
  • 中图分类号: O571.6;P142.9

Role of Neutron Transfers in Initiating Near-barrier Fusion of Heavy-ions

Funds: National Basic Research Program of China(973 Program) (2013CB834404); National Natural Science Foundation of China(11375268, 11475263, U1432246, U1432127, 11505293, 11635015)
  • 摘要: 近势垒及其以下能区重离子熔合反应中的中子转移耦合道效应是一个复杂且有争议的问题。简要介绍了近年来在中国原子能科学研究院的HI-13串列加速器上,基于静电偏转板装置完成的32S+90,94,96Zr,18O+74Ge和18O+58Ni等几个典型体系的熔合反应研究情况,并结合耦合道理论对实验数据进行了分析。选取反应体系时同时关注了正Q值的中子拾取和削裂道。另外,基于完全耦合道理论计算,提出了一种能够定量提取熔合反应中中子转移效应的自洽方法。这些研究进一步证实了垒下重离子熔合反应中的中子转移效应,同时指出了其复杂性。需要进一步的实验和理论研究来澄清相关核反应机制。


    The effect of neutron transfers on near-and sub-Coulomb-barrier fusion of heavy-ions is still a complicated and controversial problem. This paper reviews the recent experimental results of the fusion excitation functions of several typical systems, which have been measured by using an electrostatic deflector setup at the HI-13 tandem accelerator of CIAE. Both the neutron pickup and stripping effects were studied. Moreover, a self-consistent method to reliably isolate the transfer effect quantitatively based on the coupledchannels calculation is proposed. These studies give a further support for the neutron transfer effect on sub-barrier fusion of heavy-ions and its complexity. Further experimental and theoretical studies are needed for clarifying the relevant reaction mechanisms.
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近垒重离子熔合反应中的中子转移效应(英文)

doi: 10.11804/NuclPhysRev.34.03.361
    基金项目:  国家重点基础研究发展计划(973计划)项目(2013CB834404);国家自然科学基金资助项目(11375268,11475263,U1432246,U1432127,11505293,11635015)
  • 中图分类号: O571.6;P142.9

摘要: 近势垒及其以下能区重离子熔合反应中的中子转移耦合道效应是一个复杂且有争议的问题。简要介绍了近年来在中国原子能科学研究院的HI-13串列加速器上,基于静电偏转板装置完成的32S+90,94,96Zr,18O+74Ge和18O+58Ni等几个典型体系的熔合反应研究情况,并结合耦合道理论对实验数据进行了分析。选取反应体系时同时关注了正Q值的中子拾取和削裂道。另外,基于完全耦合道理论计算,提出了一种能够定量提取熔合反应中中子转移效应的自洽方法。这些研究进一步证实了垒下重离子熔合反应中的中子转移效应,同时指出了其复杂性。需要进一步的实验和理论研究来澄清相关核反应机制。


The effect of neutron transfers on near-and sub-Coulomb-barrier fusion of heavy-ions is still a complicated and controversial problem. This paper reviews the recent experimental results of the fusion excitation functions of several typical systems, which have been measured by using an electrostatic deflector setup at the HI-13 tandem accelerator of CIAE. Both the neutron pickup and stripping effects were studied. Moreover, a self-consistent method to reliably isolate the transfer effect quantitatively based on the coupledchannels calculation is proposed. These studies give a further support for the neutron transfer effect on sub-barrier fusion of heavy-ions and its complexity. Further experimental and theoretical studies are needed for clarifying the relevant reaction mechanisms.

English Abstract

贾会明, 林承键, 杨磊, 徐新星, 杨峰, 马南茹, 孙立杰, 王东玺, 刘祖华, 张焕乔. 近垒重离子熔合反应中的中子转移效应(英文)[J]. 原子核物理评论, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361
引用本文: 贾会明, 林承键, 杨磊, 徐新星, 杨峰, 马南茹, 孙立杰, 王东玺, 刘祖华, 张焕乔. 近垒重离子熔合反应中的中子转移效应(英文)[J]. 原子核物理评论, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361
JIA Huiming, LIN Chengjian, YANG Lei, XU Xinxing, YANG Feng, MA Nanru, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Role of Neutron Transfers in Initiating Near-barrier Fusion of Heavy-ions[J]. Nuclear Physics Review, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361
Citation: JIA Huiming, LIN Chengjian, YANG Lei, XU Xinxing, YANG Feng, MA Nanru, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Role of Neutron Transfers in Initiating Near-barrier Fusion of Heavy-ions[J]. Nuclear Physics Review, 2017, 34(3): 361-369. doi: 10.11804/NuclPhysRev.34.03.361
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