Fusion enhancement in the collisions with Ca44 beams and the production of neutron-deficient Lr245–250 isotopes

Li-Lin Zhou, Jun-Jun Cai, Lu-Qi Li, Zi-Long Wang, Rui Zhu, Xiao-Ye Zhang, Xin-Rui Zhang, Long Zhu, Gen Zhang, and Feng-Shou Zhang
Phys. Rev. C 109, 024606 – Published 13 February 2024
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  • INTRODUCTION
  • MODEL
  • RESULTS AND DISCUSSION
  • CONCLUSIONS
  • ACKNOWLEDGMENTS
    • References

    Abstract

    Within the framework of the isospin-dependent quantum molecular dynamics model and statistical evaporation model, the production of neutron-deficient Lr245–250 isotopes is investigated. The fusion probability in the reaction Ca44+Bi209 is larger than that with Ca40 beam, especially at a lower incident energy and smaller impact parameter, which is attributed to a lower dynamical barrier in Ca44+Bi209. The neck between the projectile and target grows faster in the reaction with Ca44 beam, and the N/Z ratio in the neck is larger, resulting in a lower dynamical barrier. Based on the fusion reactions of Ca40,44+Bi209 and Ti46,48+Tl203, we predicted six new Lr isotopes, Lr245–250, with the maximal evaporation residue cross sections of 3.5 fb, 69 pb, 0.2 nb, 0.4 nb, 1.7 nb, and 1.8 nb, respectively.

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    • Received 28 November 2023
    • Accepted 22 January 2024

    DOI:https://doi.org/10.1103/PhysRevC.109.024606

    ©2024 American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    Fusion evaporation reactionsLow & intermediate energy heavy-ion reactionsModels & methods for nuclear reactionsRare & new isotopes
    1. Properties
    A ≥ 220
    Nuclear Physics

    Authors & Affiliations

    Li-Lin Zhou1, Jun-Jun Cai1, Lu-Qi Li2, Zi-Long Wang1, Rui Zhu1, Xiao-Ye Zhang1, Xin-Rui Zhang3, Long Zhu4,5, Gen Zhang1,*, and Feng-Shou Zhang6,7,8

    • 1Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning 530004, China
    • 2China Institute of Atomic Energy, Beijing 102413, China
    • 3Guangxi Normal University, College of Physical Science and Technology, Guilin 541004, China
    • 4Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen, University, Zhuhai 519082, China
    • 5Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology, Guangxi Normal, University, Guilin 541004, China
    • 6The Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
    • 7Institute of Radiation Technology, Beijing Academy of Science and Technology, Beijing 100875, China
    • 8Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

    • *Corresponding author: zhanggen@gxu.edu.cn

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    Vol. 109, Iss. 2 — February 2024

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