\begin{document}$^{55}$\end{document}Mn + \begin{document}$^{159}$\end{document}Tb was studied on the gas-filled recoil separator SHANS2. Nineteen ER - α\begin{document}$_{1}$\end{document} - α\begin{document}$_{2}$\end{document} decay chains from \begin{document}$^{210}$\end{document}Th produced from the 4n evaporation channel were observed. The α-particle energy and half-life of \begin{document}$^{210}$\end{document}Th were determined as 7922(14) keV and 14(4) ms, respectively. In addition, the decay properties of \begin{document}$E_{\alpha}$\end{document} = 7788(14) keV and \begin{document}$T_{1/2}$\end{document} = 36\begin{document}$^{+15}_{-8}$\end{document} ms were obtained for \begin{document}$^{211}$\end{document}Th. The measured α decay properties of \begin{document}$^{210}$\end{document}Th and \begin{document}$^{211}$\end{document}Th were consistent with literature data. The cross sections were measured to be 0.59\begin{document}$^{+0.25}_{-0.23}$\end{document} nb and 0.19\begin{document}$^{+0.12}_{-0.09}$\end{document} nb for \begin{document}$^{210}$\end{document}Th and \begin{document}$^{211}$\end{document}Th, respectively. The equilibrium charge state of the recoiled nucleus \begin{document}$^{210}$\end{document}Th was determined experimentally. The new data were helpful for estimating the equilibrium charge states of elements 119 and 120, which could be produced via the \begin{document}$^{240}$\end{document}Pu(\begin{document}$^{55}$\end{document}Mn, 3n)\begin{document}$^{292}$\end{document}119 and \begin{document}$^{243}$\end{document}Am(\begin{document}$^{55}$\end{document}Mn, 3n)\begin{document}$^{295}$\end{document}120 reactions, respectively."> Reaction <sup>55</sup>Mn + <sup>159</sup>Tb : preparation for the synthesis of new elements -
  • [1]

    J. Khuyagbaatar, A. Yakushev, C. E. Düllmannet al., Phys. Rev. C102, 064602 (2020)

  • [2]

    A. Sobiczewski and K. Pomorski, Prog. Part. Nucl. Phys.58, 292 (2007)

  • [3]

    G. Münzenberg, Nuclear Physics A944, 5 (2015)

  • [4]

    K. Morita, Nuclear Physics A944, 30 (2015)

  • [5]

    Y. Oganessian and V. Utyonkov, Nuclear Physics A944, 62 (2015)

  • [6]

    S. Hofmann, Radiochimica Acta107, 879 (2019)

  • [7]

    S. Hofmann, D. Ackermann, S. Antalicet al., GSI Scientific Report 2008 (2009)

  • [8]

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

  • [9]

    S. Hofmann, S. Heinz, R. Mannet al., Eur. Phys. J. A52, 180 (2016)

  • [10]

    L. Sheng, Q. Hu, H. Jiaet al., Detectors and Associated Equipment1004, 165348 (2021)

  • [11]

    S. Y. Xu et al., (to be published).

  • [12]

    W. Reisdorf and M. Schädel, Zeitschrift fur Physik A Hadrons and Nuclei343, 47 (1992)

  • [13]

    V. V1724, VX1724 User Manual and vx1724 user manual,https://www.caen.it/

  • [14]

    K. H. Schmidt, C. C. Sahm, K. Pielenzet al., Zeitschrift fur Physik A Hadrons and Nuclei316, 19 (1984)

  • [15]

    J. Heredia, A. Andreyev, S. Antalicet al., Eur. Phys. J. A46, 337 (2010)

  • [16]

    NNDC National Nuclear Data Center, Chart of Nuclides,https://www.nndc.bnl.gov/nudat2.

  • [17]

    J. Uusitalo, T. Enqvist, M. Leinoet al., Phys. Rev. C52, 113 (1995)

  • [18]

    R. Bass, Phys. Rev. Lett.39, 265 (1977)

  • [19]

    O. Tarasov and D. Bazin, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms266, 4657 (2008)

  • [20]

    Y. T. Oganessian, V. K. Utyonkov, Y. V. Lobanovet al., Phys. Rev. C64, 064309 (2001)

  • [21]

    K. Gregorich, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment711, 47 (2013)

  • [22]

    J.-X. Li and H.-F. Zhang, Phys. Rev. C105, 054606 (2022)

  • [23]

    J.-X. Li and H.-F. Zhang, Phys. Rev. C106, 034613 (2022)

Baidu
map