Systematics on production of superheavy nuclei <italic style="font-style: italic">Z</italic> = 119-122 in fusion-evaporation reactions

Fei Niu; Peng-Hui Chen; Zhao-Qing Feng

doi:10.1007/s41365-021-00946-3

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Systematics on production of superheavy nuclei Z = 119-122 in fusion-evaporation reactions

NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH | Updated：2021-11-29

- Systematics on production of superheavy nuclei Z = 119-122 in fusion-evaporation reactions
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- Nuclear Science and Techniques Vol. 32, Issue 10, Article number: 103(2021)
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  1.School of Physics and Optoelectronic Technology, South China University of Technology, Guangzhou 510640, China
  2.College of Electrical Energy and Power Engineering, Yangzhou University, Yangzhou 225000, China
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  fengzhq@scut.edu.cn
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- DOI：10.1007/s41365-021-00946-3
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Fei Niu, Peng-Hui Chen, Zhao-Qing Feng. Systematics on production of superheavy nuclei Z = 119-122 in fusion-evaporation reactions. [J]. Nuclear Science and Techniques 32(10):103(2021)
DOI：

Fei Niu, Peng-Hui Chen, Zhao-Qing Feng. Systematics on production of superheavy nuclei Z = 119-122 in fusion-evaporation reactions. [J]. Nuclear Science and Techniques 32(10):103(2021) DOI： 10.1007/s41365-021-00946-3.

摘要

Abstract

The fusion dynamics of the formation of superheavy nuclei were investigated thoroughly within the dinuclear system model. The Monte Carlo approach was implemented in the nucleon transfer process to include all possible orientations, at which the dinuclear system is assumed to be formed at the touching configuration of dinuclear fragments. The production cross sections of superheavy nuclei Cn, Fl, Lv, Ts, and Og were calculated and compared with the available data from Dubna. The evaporation residue excitation functions in the channels of pure neutrons and charged particles were systematically analyzed. The combinations of ,44,Sc,48,50,Ti,49,51,V,52,54,Cr,58,62,Fe, and ,62,64,Ni bombarding the actinide nuclides ,238,U,244,Pu,248,Cm,247,249,Bk,249,251,Cf,252,Es, and ,243,Am were calculated to produce the superheavy elements with ,Z,=119-122. We obtained that the production cross sections sensitively depend on the neutron richness of the reaction system. The structure of the evaporation residue excitation function is related to the neutron separation energy and fission barrier of the compound nucleus.

关键词

Keywords

Dinuclear system modelFusion-evaporation reactionsSuperheavy nucleiCross sections

references

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School of Physical Science and Technology, Yangzhou University

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College of Electrical, Power and Energy Engineering, Yangzhou University

School of Physics and Optoelectronics, South China University of Technology

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Systematics on production of superheavy nuclei Z = 119-122 in fusion-evaporation reactions

DOI：10.1007/s41365-021-00946-3

摘要

Abstract

关键词

Keywords

references