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Properties of \(Z=\)114 super-heavy nuclei

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Abstract

The center of the stability island of super-heavy nuclei (SHN) is the subject of intense experimental and theoretical investigations and has potential technological applications. \(^{298}_{114}\)Fl lies in the \(Z=\)114 isotopic chain as a persuasive candidate of the spherical double-magic nucleus in SHN, and in this study, the calculations of nuclear binding energies, one-nucleon and two-nucleon separation energies, \(\alpha \)-decay energies, and the corresponding half-lives provide strong evidence for this point. These calculations within an improved Weizsäcker-Skyrme nuclear mass model (WS*) were performed and compared with the calculations of the finite-range droplet model (FRDM2012) and experimental data for \(Z=114\) isotopes and \(N=184\) isotones. Concurrently, the corresponding single-particle levels in a Woods-Saxon potential well with a spin-orbit term are calculated, which can be used as a powerful indicator to identify the shell effects existing in \(^{298}_{114}\)Fl. Both the study of the properties of the isotopic chain and microphysical quantities provide a vital signal that \(^{298}_{114}\)Fl is a spherical double-magic nucleus and also the center of the SHN.

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Authors and Affiliations

  1. School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China

    Yu-Qi Xin, Na-Na Ma, Jun-Gang Deng, Tian-Liang Zhao & Hong-Fei Zhang

  2. Joint Department for Nuclear Physics, Institute of Modern Physics, CAS and Lanzhou University, Lanzhou, 730000, China

    Hong-Fei Zhang

  3. Engineering Research Center for Neutron Application, Ministry of Education, Lanzhou University, Lanzhou, 730000, China

    Hong-Fei Zhang

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Correspondence to Hong-Fei Zhang.

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This work was supported by the National Natural Science Foundation of China (Nos. 10775061, 11175054, 11675066, 11665019, and 11947229), the China Postdoctoral Science Foundation (No. 2019M663853), the Fundamental Research Funds for the Central Universities (Nos. lzujbky-2017-ot04 and lzujbky-2020-it01), and Feitian Scholar Project of Gansu Province.

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Xin, YQ., Ma, NN., Deng, JG. et al. Properties of \(Z=\)114 super-heavy nuclei. NUCL SCI TECH 32, 55 (2021). https://doi.org/10.1007/s41365-021-00899-7

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