New neutron-rich isotope production in Sm-154+Gd-160

doi:http://dx.doi.org/10.1016/j.physletb.2016.06.073

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	New neutron-rich isotope production in Sm-154+Gd-160
	Wang, N ; Guo, L 1,2
刊名	PHYSICS LETTERS B
	2016
卷号	760 页码:236-241
关键词	HEAVY-ION COLLISIONS QUANTUM MOLECULAR-DYNAMICS QUASI-FISSION MULTINUCLEON TRANSFER FUSION REACTIONS NUCLEI DISSIPATION SYSTEMS EMISSION BARRIERS
DOI	http://dx.doi.org/10.1016/j.physletb.2016.06.073
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.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
资助机构	National Natural Science Foundation of China [11175252, 11275052, 11422548, 11547307, 11575189] ; Guangxi Natural Science Foundation [2015GXNSFDA139004]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23232]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, N,Guo, L. New neutron-rich isotope production in Sm-154+Gd-160[J]. PHYSICS LETTERS B,2016,760:236-241.
APA	Wang, N,&Guo, L.(2016).New neutron-rich isotope production in Sm-154+Gd-160.PHYSICS LETTERS B,760,236-241.
MLA	Wang, N,et al."New neutron-rich isotope production in Sm-154+Gd-160".PHYSICS LETTERS B 760(2016):236-241.