Microscopic studies of production cross sections in multinucleon transfer reaction Ni-58+Sn-124

doi:10.1103/PhysRevC.100.014612

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Microscopic studies of production cross sections in multinucleon transfer reaction Ni-58+Sn-124
	Wu, Zhenji ; Guo, Lu 2
刊名	PHYSICAL REVIEW C
	2019
卷号	100 期号:1 页码:14612
关键词	TENSOR FORCE COLLISIONS NUCLEI
ISSN号	2469-9985
DOI	10.1103/PhysRevC.100.014612
英文摘要	Background: Multinucleon transfer reactions at low-energy collisions are considered to be promising for the production of new exotic nuclei, which are difficult to produce by other methods. Theoretical studies are required to provide reliable predictions for the experiments and to help understand the microscopic mechanism in multinucleon transfer reactions. Purpose: We provide a predictive approach for production cross sections and show how and to what extent the microscopic approach works well in multinucleon transfer reactions. Methods: We employ the TDHF + GEMINI approach, which combines the microscopic time-dependent Hartree-Fock (TDHF) model with the state-of-art statistical model GEMINI++, to take into account both the multinucleon transfer dynamics and the secondary de-excitation process. The properties of primary products in multinucleon transfer process, such as transfer probabilities and primary cross sections, are extracted from TDHF dynamics using the particle-number projection method. Production cross sections for secondary products are evaluated using the statistical model GEMINI++. Results: We investigate the influence of colliding energies and deformation orientations of target and projectile nuclei on multinucleon transfer dynamics in the reaction Ni-58 + Sn-124. More nucleons are observed to transfer in the tip collision than in the side collision. The production cross sections for secondary fragments with TDHF + GEMINI calculations well reproduce the experimental measurements at energies close to the Coulomb barrier. At sub-barrier energy, the theoretical results gradually deviate from the experimental data with the increase of the number of transferred neutrons, showing the limitations of a single mean-field approximation in the TDHF approach. Possible origins for this discrepancy are discussed. The total cross sections integrated over all the neutron transfer channels are in good agreement with the experimental data for all the energies. We compare the production cross sections of TDHF + GEMINI calculations with those from GRAZING model and find that our approach gives a description as quantitatively good as the semiclassical model, although there is no adjustable parameters for the reaction dynamics in the microscopic TDHF method. Conclusions: The microscopic TDHF+ GEMINI approach reasonably reproduces the experimental data at energies close to the Coulomb barrier and well accounts for the multinucleon transfer mechanism. The present studies clearly reveal the applicability of TDHF+ GEMINI method in multinucleon transfer reactions, which thus is a promising tool for predicting the properties of new reactions.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27025]
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.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Zhenji,Guo, Lu. Microscopic studies of production cross sections in multinucleon transfer reaction Ni-58+Sn-124[J]. PHYSICAL REVIEW C,2019,100(1):14612.
APA	Wu, Zhenji,&Guo, Lu.(2019).Microscopic studies of production cross sections in multinucleon transfer reaction Ni-58+Sn-124.PHYSICAL REVIEW C,100(1),14612.
MLA	Wu, Zhenji,et al."Microscopic studies of production cross sections in multinucleon transfer reaction Ni-58+Sn-124".PHYSICAL REVIEW C 100.1(2019):14612.