Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2018, Vol. 29 ›› Issue (11): 154 doi: 10.1007/s41365-018-0501-2

• NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

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

Xiao-Bin Yu, Long Zhu, Zhi-Han Wu, Fan Li, Jun Su, Chen-Chen Guo   

  1. Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
  • Contact: Long Zhu E-mail:zhulong@mail.sysu.edu.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China under Grant No. 11605296; the Natural Science Foundation of Guangdong Province, China (Grant No. 2016A030310208); the National Natural Science Foundation of China under Grant Nos. 11875328, 11405278 and 11605270.

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Xiao-Bin Yu, Long Zhu, Zhi-Han Wu, Fan Li, Jun Su, Chen-Chen Guo. Predictions for production of superheavy nuclei with Z = 105 -- 112 in hot fusion reactions.Nuclear Science and Techniques, 2018, 29(11): 154     doi: 10.1007/s41365-018-0501-2
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Abstract:

The effects of mass asymmetry on the production of superheavy nuclei (SHN), within the dinuclear system model, are investigated in this study. It is observed that the fusion probability decreases with decreasing mass asymmetry. A total of 192 possible combinations of projectiles from O to Ti and targets with half-lives longer than 30 days for producing SHN 264Db, 265Db, 267Sg, 268Bh, 268Sg, 269Bh, 271Hs, 271Mt, 272Hs, 272Mt, 273Mt, 274Ds, 275Ds, 275Rg, 276Ds, 276Rg, 277Rg, 278Cn, 279Cn, and 280Cn are examined. Further, the optimal combinations and incident energies for synthesizing these nuclei are predicted. Most of the cross sections for production of SHN are larger than 10 pb; therefore, the process can be carried out with the available experimental equipment.

Key words: DNS model, Systematic study, Fusion reaction, Superheavy nuclei, Evaporation residue cross section