Lifetime measurements for the proposed antimagnetic rotational band in $^{101}$Pd

ORAL

Abstract

It has become well known by active researches in the last two decades that particle-hole combinations of dissimilar nucleons in high-$j$ orbitals can create novel structures such as magnetic rotation (MR) bands and antimagnetic rotation (AMR) bands around doubly magic nuclei. We proposed an antimagnetic rotational band including the $h_{11/2}$ neutron orbital in $^{101}$Pd based on the previous in-beam $\gamma$-ray spectroscopy by using the reaction $^{68}$Zn($^{37}$Cl,1p3n). However, we could not confirm the antimagnetic rotational character at that time for lack of lifetime data. Since a thick target was used in that experiment, it was possible to extract lifetimes for several levels in the ${\nu}h_{11/2}$ band through the analysis of Doppler broadened line shapes of $\gamma$-rays. The results of those analyses will be presented in this talk.

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Authors

  • Masahiko Sugawara

    • Chiba Institute of Technology, Narashino, Chiba, Japan

  • Takehito Hayakawa

    • Japan Atomic Energy Agency, Tokai, Ibaragi, Japan

  • Masumi Oshima

    • Japan Atomic Energy Agency, Tokai, Ibaragi, Japan

  • Yosuke Toh

    • Japan Atomic Energy Agency, Tokai, Ibaragi, Japan

  • Akihiko Osa

    • Japan Atomic Energy Agency, Tokai, Ibaragi, Japan

  • Makoto Matsuda

    • Japan Atomic Energy Agency, Tokai, Ibaragi, Japan

  • Toshiyuki Shizuma

    • Japan Atomic Energy Agency, Tokai, Ibaragi, Japan

  • Yuichi Hatsukawa

    • Japan Atomic Energy Agency, Tokai, Ibaragi, Japan

  • Hideshige Kusakari

    • Chiba University, Chiba, Japan

  • Tsuneyasu Morikawa

    • Kyushu University, Fukuoka, Japan

  • Zaiguo Gan

    • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China

  • Tomasz Czosnyka

    • Heavy Ion Labolatory, Warsaw, Poland