Production of neutron-rich N=126 nuclei in multinucleon transfer reactions: Comparison between 136Xe+198Pt and 238U+198Pt reactions

被引：28

作者：

Zhao, K. ^{[1
,2
]}

Liu, Z. ^{[3
,4
]}

Zhang, F. S. ^{[5
,6
,7
]}

Wang, N. ^{[2
,8
]}

机构：

[1] China Inst Atom Energy, Dept Nucl Phys, Beijing 102413, Peoples R China

[2] Guangxi Normal Univ, Guangxi Key Lab Nucl Phys & Nucl Technol, Guilin 541004, Peoples R China

[3] Chinese Acad Sci, Inst Modern Phys, Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China

[4] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China

[5] Beijing Radiat Ctr, Beijing 100875, Peoples R China

[6] Beijing Normal Univ, Coll Nucl Sci & Technol, Minist Educ, Key Lab Beam Technol, Beijing 100875, Peoples R China

[7] Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China

[8] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China

来源：

PHYSICS LETTERS B | 2021年 / 815卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

D O I：

10.1016/j.physletb.2021.136101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production cross sections for primary and residual fragments produced in two reaction systems Xe-136 + Pt-198 and U-238 + Pt-198 at incident energy 8 MeV/nucleon are calculated by improved quantum molecular dynamics (ImQMD) model incorporated with the statistical evaporation model (HIVAP code). It is found that the cross sections for n-rich N = 126 residual fragments are several times larger in U-238+Pt-198 than in Xe-136+Pt-198 due to the larger cross sections and lower excitation energies of primary fragments in U-238 induced reactions. In both systems, N = 126 semi-magic residues are produced via neutron emission in the decay of primary fragments, which survive in the semi-central collisions and have lower excitation energies. (c) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

引用

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