Measurement of <sup>103</sup>Rh(n,&gamma;) reaction for T-violation search

POSTER

Abstract

It is known that P-violation in the (n,γ) reaction cross section of the compound nucleus, which is formed by neutron absorption into a nucleus, is enhanced by a factor of 106, compared to that of proton-proton scattering. The enhancement is considered to be due to an interference between s-wave and p-wave resonances. In addition, T-violation may be enhanced for a compound nucleus in which P-violation is enhanced. We plan to search for T-violation with a polarized neutron beam and a polarized target in future. Among a number of target nuclei with large P-violation observed, we chose 103Rh, and measured the 103Rh(n,γ) reaction at the J-PARC/MLF BL04 beamline in June 2018.

In this presentation, we will report the analysis status of the γ-ray energy distribution measured with Germanium detectors and the neutron resonance distribution.

*KEK S-type research projects with program numbers : 2014S03, 2015S12, and 2018S12 MEXT KAKENHI Grant No. JP19GS0210 and JSPS KAKENHI Grant No. JP17H02889

Presenters

  • Yuika Tani

    • Tokyo Institute of Technology

Authors

  • Yuika Tani

    • Tokyo Institute of Technology
  • Hiroyuki Fujioka

    • Tokyo Institute of Technology
  • Jun Koga

    • Kyushu University
  • Shusuke Takada

    • Kyushu University
  • Sou Makise

    • Kyushu University
    • Dept. of Phys., Kyushu Univ.
  • Tamaki Yoshioka

    • RCAPP, Kyushu Univ.
    • RCAPP, Kyushu University
  • Hirohiko M M Shimizu

    • Nagoya University
  • Katsuya Hirota

    • Nagoya University
  • Masaaki Kitaguchi

    • Nagoya University
    • KMI, Nagoya University
  • Tomoki Yamamoto

    • Nagoya University
  • Shunsuke Endo

    • Nagoya University
  • Kohei Ishizaki

    • Nagoya University
  • Takumi Sato

    • Nagoya University
  • Yudai Niinomi

    • Nagoya University
  • Takuhiro Fujiie

    • Nagoya University
  • Masataka Iinuma

    • Hiroshima University
  • Takuya Okudaira

    • JAEA
    • Japan Atomic Energy Agency
    • J-PARC
  • Atsushi Kimura

    • JAEA
    • Japan Atomic Energy Agency
  • Kenji Sakai

    • JAEA
    • Japan Atomic Energy Agency
  • Takayuki Oku

    • JAEA
    • Japan Atomic Energy Agency
  • Christopher Haddock

    • KEK
    • High Energy Accelerator Research Organization (KEK)
  • Takashi Ino

    • KEK
    • High Energy Accelerator Research Organization (KEK)