\begin{document}$^7$\end{document}Li(\begin{document}$^{11}$\end{document}B,\begin{document}$^{14}$\end{document}C\begin{document}$^*\rightarrow\alpha$\end{document}+\begin{document}$^{10}$\end{document}Be)\begin{document}$\alpha$\end{document}, is conducted at an incident beam energy of 55 MeV. This reaction channel has a significantly large Q-value, which favors populating the high lying resonant states in \begin{document}$^{14}$\end{document}C. The decay paths, from these resonances to various states of the final nucleus \begin{document}$^{10}$\end{document}Be, can be selected, owing to the experimentally achieved optimal resolution of the Q-value spectrum. A number of resonant states are reconstructed from the forward emitting \begin{document}$^{10}$\end{document}Be + \begin{document}$\alpha$\end{document} fragments, and their major molecular structures can be detected according to the selective decay paths and relative decay widths. A state at 22.4(2) MeV validates the previously measured and theoretically predicted band head of the positive-parity \begin{document}$\sigma$\end{document}-bond linear-chain molecular band. Two additional resonances at 22.9(2) and 24.2(2) MeV are identified and consistent with the predicted \begin{document}$2^+$\end{document} and \begin{document}$4^+$\end{document} members of the same molecular band, thus providing novel evidences for the existence of the exotic clustering chain structure in neutron-rich carbon isotopes. A few high energy resonances, which also indicate the presence of the \begin{document}$\sigma$\end{document}-bond molecular structure, are observed; however, further studies are still required to clarify their ascription in band systematics."> Novel evidence for the <i>σ</i>-bond linear-chain molecular structure in <sup>14</sup>C -
  • [1]

    W. von Oertzen, M. Freer, and Y. Kanada-En’yo, Phys. Rep.432, 43 (2006)

  • [2]

    H. Horiuchi, K. Ikeda, and K. Kato, Progress of Theoretical Physics Supplement192, 1 (2012)

  • [3]

    M. Freer, H. Horiuchi, Y. Kanada-En’ yoet al., Rev. Mod. Phys.7, 035004 (2018)

  • [4]

    Y. Liu and Y. L. Ye, Nucl. Sci. Tech.29, 184 (2018)

  • [5]

    Y. L. Ye, X. F. Yang, Y. Liuet al., SCIENTIA SINICA Physica, Mechanica & Astronomica50, 112003 (2020)

  • [6]

    Z. H. Yang, Y. L. Ye, Z. H. Liet al., Phys. Rev. Lett.112, 162501 (2014)

  • [7]

    Z. H. Yang, Y. L. Ye, Z. H. Liet al., Phys. Rev. C91, 024304 (2015)

  • [8]

    Z. Yang, Y. Ye, Z. Liet al., Sci. China. Phys. Mech.57, 1613 (2014)

  • [9]

    Z. Y. Tian, Y. L. Ye, Z. H. Li,et al., Chin. Phys. C40, 111001 (2016)

  • [10]

    W. Jiang, Y. Ye, Z. Liet al., Sci. China. Phys. Mech.60, 062011 (2017)

  • [11]

    J. Li, Y. L. Ye, Z. H. Liet al., Phys. Rev. C95, 021303R (2017)

  • [12]

    J. Feng, Y. Ye, B. Yanget al., Sci. China. Phys. Mech.62, 12011 (2019)

  • [13]

    H. L. Zang, Y. L. Ye, Z. H. Liet al., Chin. Phys. C42, 074003 (2018)

  • [14]

    Y. Liu, Y. L. Ye, J. L. Louet al., Phys. Rev. Lett.124, 192501 (2020)

  • [15]

    W. Jiang, Y. L. Ye, C. J. Linet al., Phys. Rev. C101, 031304 (2020)

  • [16]

    K. Ikeda, N. Takigawa, and H. Horiuchi, Prog. Theor. Phys. Supp. E68, 464 (1968)

  • [17]

    T. Baba and M. Kimura, Phys. Rev. C94, 044303 (2016)

  • [18]

    T. Baba and M. Kimura, Phys. Rev. C95, 064318 (2017)

  • [19]

    T. Baba and M. Kimura, Phys. Rev. C97, 054315 (2018)

  • [20]

    D. H. Wilkinson, Nucl. Phys. A452, 296 (1986)

  • [21]

    H. Morinaga, Phys. Rev101, 254 (1956)

  • [22]

    M. Freer, J. D. Malcolm, N. L. Achouriet al., Phys. Rev. C90, 054324 (2014)

  • [23]

    A. Fritsch, S. Beceiro-Novo, D. Suzukiet al., Phys. Rev. C93, 014321 (2016)

  • [24]

    H. Yamaguchi, D. Kahl, S. Hayakawaet al., Phys. Lett. B766, 11 (2017)

  • [25]

    F. D. Synder and M. A. Waggoner, Phys. Rev186, 999 (1969)

  • [26]

    B. Yang, Y. L. Ye, J. Fenget al., Phys. Rev. C95, 064315 (2019)

  • [27]

    R. Qiao, Y. Ye, J. Wanget al., IEEE Transactions on Nuclear Science61, 596 (2014)

  • [28]

    E. Costenzo, M. Lattuada, S. Remanoet al., Nucl. Instrum. Meth. in Phys. Res. A295, 373 (1990)

  • [29]

    W. von Oertzen, Z. Phys. A357, 355 (1997)

  • [30]

    P. Haigh, N. Ashwood, T. Bloxhamet al., Phys. Rev. C78, 014319 (2008)

Baidu
map