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Progress in transport models of heavy-ion collisions for the synthesis of superheavy nuclei

Published on August 15, 2023

In this article, we introduce the development of transport models such as the dinuclear system (DNS) model, quantum molecular dynamics (QMD) type model, Boltzmann type model, and Time-dependent Hatree-Fock (TDHF) type model, and conclude with their latest applications in the synthesis of superheavy nuclei, especially in fusion reactions and multinucleon transfer reactions. In addition, various international large-scale scientific facilities, as well as their scientific objectives, and future plans, are also summarized.

Recommended citation: Zhang, Ming-Hao, et al. "Progress in transport models of heavy-ion collisions for the synthesis of superheavy nuclei." NUCLEAR TECHNIQUES,2023,46(08):137-145.
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Predictions of synthesizing elements with Z = 119 and 120 in fusion reactions

Published on January 25, 2024

Within the framework of the dinuclear system model, the experimentally accessible projectile-target combinations are predicted for the production of new superheavy elements with 𝑍=119 and 𝑍=120. The entrance channel effect and the isotopic dependence of targets and projectiles on the capture, fusion, and survival stages of the fusion reaction are discussed.

Recommended citation: Zhang, Ming-Hao, et al. "Predictions of synthesizing elements with Z= 119 and 120 in fusion reactions." Physical Review C 109.1 (2024): 014622.
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Possibilities for the synthesis of superheavy element Z = 121 in fusion reactions

Published on June 18, 2024

The synthesis of superheavy elements Z = 121 was systematically studied through combinations of stable projectiles with Z = 21–30 and targets with half-lives exceeding 50 d. The influence of mass asymmetry and isotopic dependence on the projectile and target nuclei was investigated in detail.

Recommended citation: Zhang, Ming-Hao, et al. "Possibilities for the synthesis of superheavy element Z= 121 in fusion reactions." Nuclear Science and Techniques 35.6 (2024): 95.
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Possibility of reaching the predicted center of the “island of stability” via the radioactive beam-induced fusion reactions

Published on September 04, 2024

Recommended citation: Zhang, Ming-Hao, et al. "Possibility of reaching the predicted center of the “island of stability” via the radioactive beam-induced fusion reactions." Nuclear Science and Techniques 36.9 (2024): 95.
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Predictions for the synthesis of new superheavy nuclei with 252Cf target

Published on December 30, 2024

The $^{252}$Cf isotope produced at Oak Ridge National Laboratory is a promising target material for the synthesis of new superheavy nuclei through fusion reaction experiments. Within the framework of the dinuclear system model, the reaction systems with the $^{252}$Cf target and the $^{48}$Ca, $^{45}$Sc, $^{50}$Ti, $^{51}$V, $^{54}$Cr, $^{55}$Mn projectiles are investigated for the synthesis of new isotopes $^{295-297}$Og, $^{292-294}$119, $^{297-299}$120, $^{298-300}$121, $^{301-303}$122 and $^{302-304}$123. The decreasing trend of the maximal evaporation residue cross sections with the increasing proton number of the compound nucleus are discussed in the capture, fusion and survival stages. Additionally, the radioactive beam-induced reactions based on the $^{252}$Cf target are investigated to reach the predicted neutron shell closure $N$ = 184, with the maximal evaporation residue cross section predicted to be 21 fb for synthesizing $^{302}$Og. The predicted results fall below the current detection limitation, indicating the necessity for advancement in both accelerator and detection techniques, as well as exploration of alternative reaction mechanisms.

Recommended citation: Zhang, Ming-Hao, et al. "Predictions for the synthesis of new superheavy nuclei with 252Cf target." Chinese Physics C 36.9 (2024): 95.
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Predictions for the synthesis of unknown 279–281Nh and 287,288Nh isotopes

Published on February 14, 2025

Based on the dinuclear system model, we investigate the asymmetric fusion-evaporation reactions for producing unknown 279–281Nh and neutron-rich 287,288Nh isotopes, with the objective of filling the gap between cold and hot fusion reactions.

Recommended citation: Zhang, Ming-Hao, et al. "Predictions for the synthesis of unknown 279–281Nh and 287,288Nh isotopes." Physical Review C 111.2 (2025): 024611.
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