\begin{document}$K=5/2^\pm$\end{document} positive- and negative-parity bands in the stable nucleus 153Eu are investigated using the reflection-asymmetric triaxial particle rotor model. The experimental energy spectra, energy staggering parameters, and intraband \begin{document}$E2$\end{document} and \begin{document}$M1$\end{document} transition probabilities are well reproduced. The calculated interband \begin{document}$B(E1)$\end{document} values are found to depend sensitively on the octupole deformation parameter \begin{document}$\beta_{30}$\end{document}, although the energy spectra and intraband \begin{document}$E2$\end{document} and \begin{document}$M1$\end{document} transitions can be reproduced without the octupole degree of freedom. The observed enhanced \begin{document}$E1$\end{document} transition probabilities can be reproduced with \begin{document}$\beta_{30}=0.05$\end{document}. The detailed analysis of the intrinsic wave functions shows these nearly degenerate positive- and negative-parity bands are built on two individual proton configurations, i.e., dominated by \begin{document}$\pi g_{7/2}[\Omega=5/2]$\end{document} and \begin{document}$\pi h_{11/2}[\Omega=5/2]$\end{document}, respectively, which differs from the parity doublet bands built on a single parity-mixed configuration."> Octupole correlations in stable nucleus <sup>153</sup>Eu within reflection-asymmetric particle rotor model -
  • [1]

    A. Bohr and B. R. Mottelson,Nuclear structure, Vol II(New York: Benjamin, 1975).

  • [2]

    P. A. Butler and W. Nazarewicz, Rev. Mod. Phys.68, 349 (1996)

  • [3]

    L. P. Gaffney, P. A. Butler, M. Schecket al., Nature497, 199 (2013)

  • [4]

    P. A. Butler, Proc. R. Soc. A476, 20200202 (2020)

  • [5]

    M. Dahlinger, E. Kankeleit, D. Habset al., Nucl. Phys. A484, 337 (1988)

  • [6]

    R. H. Parker, M. R. Dietrich, M. R. Kalitaet al., Phys. Rev. Lett.114, 233002 (2015)

  • [7]

    B. Bucher, S. Zhu, C. Y. Wuet al., Phys. Rev. Lett.116, 112503 (2016)

  • [8]

    B. Bucher, S. Zhu, C. Y. Wuet al., Phys. Rev. Lett.118, 152504 (2017)

  • [9]

    S. J. Zhu, E. H. Wang, J. H. Hamiltonet al., Phys. Rev. Lett.124, 032501 (2020)

  • [10]

    C. Morse, A. O. Macchiavelli, H. L. Crawfordet al., Phys. Rev. C102, 054328 (2020)

  • [11]

    S. J. Zhu, J. H. Hamilton, A. V. Ramayyaet al., Phys. Rev. C60, 051304 (1999)

  • [12]

    S. J. Zhu, J. H. Hamilton, A. V. Ramayyaet al., Phys. Rev. C59, 1316 (1999)

  • [13]

    J. Wisniewski, W. Urban, T. Rząca-Urbanet al., Phys. Rev. C96, 064301 (2017)

  • [14]

    J. K. Hwang, A. V. Ramayya, J. H. Hamiltonet al., Phys. Rev. C62, 044303 (2000)

  • [15]

    W. J. Vermeer, M. K. Khan, A. S. Mowbrayet al., Phys. Rev. C42, R1183 (1990)

  • [16]

    W. Urban, J. Bacelar, W. Gastet al., Phys. Lett. B247, 238 (1990)

  • [17]

    C. J. Pearson, W. R. Phillips, J. L. Durellet al., Phys. Rev. C49, R1239 (1994)

  • [18]

    S. Basu, S. Chattopadhyay, J. M. Chatterjeeet al., Phys. Rev. C56, 1756 (1997)

  • [19]

    J. F. Smith, M. W. Simon, R. W. Ibbotsonet al., Phys. Rev. C58, 3171 (1998)

  • [20]

    D. J. Hartley, M. A. Riley, D. E. Archeret al., Phys. Rev. C57, 2944 (1998)

  • [21]

    T. Lewis and R. Graetzer, Nucl. Phys. A162, 145 (1971)

  • [22]

    J. Thun and T. Miller, Nucl. Phys. A193, 337 (1972)

  • [23]

    G. Dracoulis, J. Leigh, M. Slocombeet al., J. Phys. G1, 853 (1975)

  • [24]

    Y. Y. Wang, S. Q. Zhang, P. W. Zhaoet al., Phys. Lett. B792, 454 (2019)

  • [25]

    Y. Y. Wang and S. Q. Zhang, Int. J. Mod. Phys. E32, 2340010 (2023)

  • [26]

    Y. Y. Wang and S. Q. Zhang, Phys. Rev. C102, 034303 (2020)

  • [27]

    Y. P. Wang, Y. Y. Wang, and J. Meng, Phys. Rev. C102, 024313 (2020)

  • [28]

    Y. Y. Wang, X. H. Wu, S. Q. Zhanget al., Sci. Bull.65, 2001 (2020)

  • [29]

    S. Rajbanshi, R. Palit, R. Rautet al., Phys. Rev. C104, 064316 (2021)

  • [30]

    Y. Y. Wang, Q. B. Chen, and S. Q. Zhang, Phys. Rev. C105, 044316 (2022)

  • [31]

    Y. Y. Wang, J. Peng, and S. Q. Zhang, Phys. Rev. C110, 024315 (2024)

  • [32]

    Y. Y. Wang, Phys. Rev. C104, 014318 (2021)

  • [33]

    Madhu, A. Y. Deo, K. Yadavet al., Phys. Rev. C108, 014309 (2023)

  • [34]

    I. Hamamoto, Nucl. Phys. A271, 15 (1976)

  • [35]

    I. Hamamoto and B. Mottelson, Phys. Lett. B127, 281 (1983)

  • [36]

    S. Q. Zhang, B. Qi, S. Y. Wanget al., Phys. Rev. C75, 044307 (2007)

  • [37]

    S. G. Nilsson, Mat. Fys. Medd. Dan. Vid. Selsk29, 1 (1955)

  • [38]

    G. A. Leander and R. K. Sheline, Nucl. Phys. A413, 375 (1984)

  • [39]

    P. Ring and P. Schuck,The Nuclear many-body problem(New York: Springer Science & Business Media, 2004).

  • [40]

    Z. X. Ren, S. Q. Zhang, P. W. Zhaoet al., Sci. China Phys. Mech. Astron.62, 112062 (2019)

  • [41]

    P. W. Zhao, Z. P. Li, J. M. Yaoet al., Phys. Rev. C82, 054319 (2010)

  • [42]

    S. G. Nilsson, C. F. Tsang, A. Sobiczewskiet al., Nucl. Phys. A131, 1 (1969)

  • [43]

    Y. Y. Wang and Z. X. Ren, Sci. China Phys. Mech. Astron.61, 082012 (2018)

  • [44]

    F. S. Stephens, P. Kleinheinz, R. K. Shelineet al., Nucl. Phys. A222, 235 (1974)

Baidu
map