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题名: New neutron-rich isotope production in Sm-154+Gd-160
作者: Wang, N ;  Guo, L
刊名: PHYSICS LETTERS B
出版日期: 2016
卷号: 760, 页码:236-241
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2016.06.073
通讯作者: Wang, N (reprint author), Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China.
文章类型: Article
英文摘要: Deep inelastic scattering in Sm-154+Gd-160 at energies above the Bass barrier is for the first time investigated with two different microscopic dynamics approaches: improved quantum molecular dynamics (ImQMD) model and time dependent Hartree-Fock (TDHF) theory. No fusion is observed from both models. The capture pocket disappears for this reaction due to strong Coulomb repulsion and the contact time of the di-nuclear system formed in head-on collisions is about 700 fm/c at an incident energy of 440 MeV. The isotope distribution of fragments in the deep inelastic scattering process is predicted with the simulations of the latest ImQMD-v2.2 model together with a statistical code (GEMINI) for describing the secondary decay of fragments. More than 40 extremely neutron-rich unmeasured nuclei with 58 <= Z <= 76 are observed and the production cross sections are at the order of mu b to mb. The multi-nucleon transfer reaction of Sm+Gd could be an alternative way to synthesize new neutron-rich lanthanides which are difficult to be produced with traditional fusion reactions or fission of actinides. (C) 2016 The Authors. Published by Elsevier B.V.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: HEAVY-ION COLLISIONS ;  QUANTUM MOLECULAR-DYNAMICS ;  QUASI-FISSION ;  MULTINUCLEON TRANSFER ;  FUSION REACTIONS ;  NUCLEI ;  DISSIPATION ;  SYSTEMS ;  EMISSION ;  BARRIERS
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11175252, 11275052, 11422548, 11547307, 11575189] ;  Guangxi Natural Science Foundation [2015GXNSFDA139004]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21535
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Wang, N,Guo, L. New neutron-rich isotope production in Sm-154+Gd-160[J]. PHYSICS LETTERS B,2016,760:236-241.
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