Prediction of synthesis cross-sections of new moscovium isotopes in fusion-evaporation reactions

Peng-Hui Chen; Hao Wu; Zu-Xing Yang; Xiang-Hua Zeng; Zhao-Qing Feng

doi:10.1007/s41365-022-01157-0

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Prediction of synthesis cross-sections of new moscovium isotopes in fusion-evaporation reactions

NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH | Updated：2023-02-13

- Prediction of synthesis cross-sections of new moscovium isotopes in fusion-evaporation reactions
- Nuclear Science and Techniques Vol. 34, Issue 1, Article number: 7(2023)
- Affiliations：
  
  1.School of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China
  2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  3.RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
  4.College of Electrical, Power and Energy Engineering, Yangzhou University, Yangzhou 225009, China
  5.School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, China
- Author bio：
  
  † chenpenghui@yzu.edu.cn
  ‡ fengzhq@scut.edu.cn
- Funds：
- DOI：10.1007/s41365-022-01157-0
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Peng-Hui Chen, Hao Wu, Zu-Xing Yang, et al. Prediction of synthesis cross-sections of new moscovium isotopes in fusion-evaporation reactions. [J]. Nuclear Science and Techniques 34(1):7(2023)
DOI：

Peng-Hui Chen, Hao Wu, Zu-Xing Yang, et al. Prediction of synthesis cross-sections of new moscovium isotopes in fusion-evaporation reactions. [J]. Nuclear Science and Techniques 34(1):7(2023) DOI： 10.1007/s41365-022-01157-0.

摘要

Abstract

In the framework of the dinuclear system model, the synthesis mechanism of the superheavy nuclides with atomic numbers ,Z,=112, 114, 115 in the reactions of projectiles ,40,48,Ca bombarding on targets ,238,U,242,Pu, and ,243,Am within a wide interval of incident energy has been investigated systematically. Based on the available experimental excitation functions, the dependence of calculated synthesis cross-sections on collision orientations has been studied thoroughly. The total kinetic energy (TKE) of these collisions with fixed collision orientation shows orientation dependence, which can be used to predict the tendency of kinetic energy diffusion. The TKE is dependent on incident energies, as discussed in this paper. We applied the method based on the Coulomb barrier distribution function in our calculations. This allowed us to approximately consider all the collision orientations from tip-tip to side-side. The calculations of excitation functions of ,48,Ca + ,238,U,48,Ca + ,242,Pu, and ,48,Ca + ,243,Am are in good agreement with the available experimental data. The isospin effect of projectiles on production cross-sections of moscovium isotopes and the influence of the entrance channel effect on the synthesis cross-sections of superheavy nuclei are also discussed in this paper. The synthesis cross-section of new moscovium isotopes ,278-286,Mc was predicted to be as large as hundreds of pb in the fusion-evaporation reactions of ,35,37,Cl + ,248,Cf,38,40,Ar + ,247,Bk,39,41,K + ,247,Cm,40,42,44,46,Ca + ,243,Am,45,Sc + ,244,Pu, and ,46,48,50,Ti + ,237,Np,51,V + ,238,U at some typical excitation energies.

关键词

Keywords

Dinuclear system modelSuperheavy nucleiComplete fusion reactionsProduction cross-section

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Multinucleon transfer dynamics in nearly symmetric nuclear reactions

Predictions for production of superheavy nuclei with Z=105-112 in hot fusion reactions

Theoretical study on fusion dynamics and evaporation residue cross sections for superheavy elements

Related Author

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Related Institution

School of Physics and Optoelectronic Technology, South China University of Technology

College of Electrical Energy and Power Engineering, Yangzhou University

University of Chinese Academy of Sciences

Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University

College of Physics, Shenzhen University

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