\begin{document}$ Z = 106-118 $\end{document} are chosen as examples for testing. The calculated half-lives of α-decay agree with the experimental data better than those from the GLDM with the shell correction in the Weizs\begin{document}$ {\rm {\ddot{a}}} $\end{document}cker-Skyrme model. Moreover, the influence of the decay energy \begin{document}$ Q_{\alpha} $\end{document} on α-decay is investigated. It is determined that the \begin{document}$ Q_{\alpha} $\end{document} values obtained from the WS4 model with radial basis function (RBF) correction match the experimental data optimally. Owing to these advantages, the GLDM with the RHF shell correction and WS4+RBF \begin{document}$ Q_{\alpha} $\end{document} values is adopted to predict the α-decay lifetime for the unknown superheavy nuclei with \begin{document}$ Z = 118-120 $\end{document}. The trend of the available α-decay half-lives according to the neutron number is similar to the trends of the values from the GLDM calculation without shell correction as well as the universal decay law (UDL) formula. Comparably, the RHF shell correction depresses (raises) the α-decay lifetime for most nuclei with \begin{document}$ N<186 $\end{document} (\begin{document}$ N>186 $\end{document}). In comparison with the half-lives of spontaneous fission, it can be concluded that the α-decay is dominant in the superheavy nuclei \begin{document}$ ^{281-304}118 $\end{document}, \begin{document}$ ^{284-306}119 $\end{document}, and \begin{document}$ ^{287-308}120 $\end{document}. These results are beneficial to the exploration of superheavy nuclei in experiments."> Research on <i>α</i>-decay for the superheavy nuclei with <i>Z </i>= 118<b>–</b>120 -
  • [1]

    W. D. Myers and W. J. Swiatecki, Nucl. Phys.81, 1 (1966)

  • [2]

    A. Sobiczewski, F. A. Gareev, and B. N. Kalinkin, Phys. Lett.22, 500 (1966)

  • [3]

    Y. T. Oganessian, V. K. Utyonkov, Y. V. Lobanovet al., I. V. Shirokovskyet al. Phys. Rev. C70, 064609 (2004)

  • [4]

    Y. T. Oganessian, V. K. Utyonkov, Y. V. Lobanovet al., Phys. Rev. C76, 011601(R) (2007)

  • [5]

    Y. T. Oganessian, F. S. Abdullin, S. N. Dmitrievet al., Phys. Rev. C87, 014302 (2013)

  • [6]

    Y. T. Oganessian, V. K. Utyonkov, Y. V. Lobanovet al., Phys. Rev. C74, 044602 (2006)

  • [7]

    Y. T. Oganessian, F. S. Abdullin, C. Alexanderet al., Phys. Rev. C87, 054621 (2013)

  • [8]

    C. E. Düllmann, A. Yakushev, J. Khuyagbaataret al., GSI Scientific Report. PHN-NUSTAR-SHE-02, (2012)

  • [9]

    S. Hofmann, S. Heinz, D. Ackermannet al., GSI Scientific Report. PHN-NUSTAR-SHE-01, (2012)

  • [10]

    S. Hofmannet al., Eur. Phys. J. A52, 116 (2016)

  • [11]

    Y. T. Oganessian, V. K. Utyonkov, Y. V. Lobanovet al., Phys. Rev. C79, 024603 (2009)

  • [12]

    K. Morita, Nucl. Phys. A944, 30 (2015)

  • [13]

    S. Hofmann, G. Münzenberg, F. P. Hessebergeret al., Nucl. Instrum. Methods Phys. Res.223, 312 (1984)

  • [14]

    D. S. Delion, R. J. Liotta, and R. Wyss, Phys. Rev. C92, 051301(R) (2015)

  • [15]

    J. G. Deng, H. F. Zhang, and G. Royer, Phys. Rev. C101, 034307 (2020)

  • [16]

    G. G. Adamian, N. V. Antonenko, H. Lenskeet al., Phys. Rev. C101, 034301 (2020)

  • [17]

    G. Royer and B.Remaud, Nucl. Phys. A444, 477 (1985)

  • [18]

    H. F. Zhang, W. Zuo, J. Q. Liet al., Phys. Rev. C74, 017304 (2006)

  • [19]

    X. J. Bao, H. F. Zhang, Haifei Zhanget al., Nucl. Phys. A921, 85 (2014)

  • [20]

    C. Xu and Z. Z. Ren, Nucl. Phys. A753, 174 (2005)

  • [21]

    D. D. Ni and Z. Z. Ren, J. Phys. G: Nucl. Part. Phys.37, 035104 (2010)

  • [22]

    D. D. Ni and Z. Z. Ren, Phys. Rev. C83, 014310 (2011)

  • [23]

    K. P. Santhosh and A. Joseph, Pramana, J. Phys.55, 375 (2000)

  • [24]

    K. P. Santhosh and A. Joseph, Pramana, J. Phys.58, 611 (2002)

  • [25]

    K. P. Santhosh and B. Priyanka, Phys. Rev. C89, 064604 (2014)

  • [26]

    D. N. Poenaru, M. Ivascu, and A. Sandulescu, J. Phys. G: Nucl. Part. Phys.5, L169 (1979)

  • [27]

    J. Blocki, J. Randrup, W. J. Swiateckiet al., Ann. Phys.105, 427 (1977)

  • [28]

    S. B. Duarte and N. Teruya, Phys. Rev. C85, 017601 (2012)

  • [29]

    J. C. Pei, F. R. Xu, Z. J. Linet al., Phys. Rev. C76, 044326 (2007)

  • [30]

    C. Qi, F. R. Xu, R. J. Liottaet al., Phys. Rev. Lett.103, 072501 (2009)

  • [31]

    G. Royer, J. Phys. G: Nucl. Part. Phys.26, 1149 (2000)

  • [32]

    T. K. Dong and Z. Z. Ren, Eur. Phys. J. A26, 69 (2005)

  • [33]

    Yu. Ts. Oganessian and V. K. Utyonkov, Nucl. Phys. A944, 62 (2015)

  • [34]

    M. G. Itkis, E. Vardaci, I. M. Itkis, Get al., Nucl. Phys. A944, 204 (2015)

  • [35]

    Y. T. Oganessian, F. S. Abdullin, P. D. Baileyet al., Phys. Rev. Lett.104, 142502 (2010)

  • [36]

    W. J. Swiatecki, Phys. Rev.100, 937 (1955)

  • [37]

    K. P. Santhosh and C. Nithya, Phys. Rev. C94, 054621 (2016)

  • [38]

    C. Xu, Z. Z. Ren, and Y. Q. Guo, Phys. Rev. C78, 044329 (2008)

  • [39]

    T. L. Zhao and X. J. Bao, Phys. Rev. C98, 064307 (2018)

  • [40]

    X. J. Bao, S. Q. Guo, H. F. Zhanget al., Phys. Rev. C95, 034323 (2017)

  • [41]

    X. H. Zhou, Z. Y. Zhang, Z. G. Ganet al., Scientia Sinica Physica, Mechanica & Astronomica50, 112002 (2020)

  • [42]

    V. M. Strutinsky, Nucl. Phys. A95, 420 (1967)

  • [43]

    P. Jiang, Z. M. Niu, Y. F. Niuet al., Phys. Rev. C98, 064323 (2018)

  • [44]

    N. Wang, M. Liu, and X. Z. Wu, Phys. Rev. C81, 044322 (2010)

  • [45]

    Z. S. Ge, G. Zhang, S. H. Chenget al., Eur. Phys. J. A55, 166 (2019)

  • [46]

    J. Zhang and H. F. Zhang, Phys. Rev. C102, 044308 (2020)

  • [47]

    N. Wang, M. Liu, and X. Wu, J. Meng, Phys. Lett. B734, 215 (2014)

  • [48]

    D. D. Ni and Z. Z. Ren, Phys. Rev. C81, 024315 (2010)

  • [49]

    H. F. Zhang, G. Royer, Y. J. Wanget al., Phys. Rev. C80, 057301 (2009)

  • [50]

    P. Möller, J. R. Nix, W.D. Myerset al., At. Data Nucl. Data Tables59, 185 (1995)

  • [51]

    J. X. Bao, H. F. Zhang, G. Royeret al., Nucl. Phys. A906, 1 (2013)

  • [52]

    W. D. Myers,Droplet Model of Atomic Nuclei(Plenum, New York, 1977)]

  • [53]

    W. H. Long, N. Van Giai, and J. Meng, Phys. Lett. B640, 150 (2006)

  • [54]

    W. H. Long, H. Sagawa, J. Menget al., Phys. Lett.B639, 242 (2006)

  • [55]

    W. H. Long, H. Sagawa, N. V. Giaiet al., Phys. Rev. C76, 034314 (2007)

  • [56]

    P. Möller, A. J. Sierk, T. Ichikawaet al., At. Data Nucl. Data Tables109, 1 (2016)

  • [57]

    Yu. Ts. Oganessian, A. Sobiczewski, and G.M. Ter-Akopian, Phys. scr.92, 023003 (2017)

  • [58]

    G. Audi, F. G. Kondev, M. Wanget al., Chin. Phys. C41, 030001 (2017)

  • [59]

    V. K. Utyonkov, N. T. Brewer, Y. T. Oganessianet al., Phys. Rev. C97, 014320 (2018)

  • [60]

    V. K. Utyonkov, N. T. Brewer, Y. T. Oganessianet al., Phys. Rev. C92, 034609 (2015)

Baidu
map