EPJ Web Conf.
Volume 219, 2019International Workshop on Particle Physics at Neutron Sources (PPNS 2018)
|Number of page(s)||3|
|Section||Searches for Time-Reversal-Violation in Nuclei|
|Published online||12 December 2019|
Measurement of the angular distribution of prompt gamma-rays emitted in the 117Sn(n, γ) reaction for a T-violation search
1 Department of Physics, Kyushu University, 744 Motooka, Nishi, Fukuoka 819–0395, Japan
2 Research Center for Advanced Particle Physics, Kyushu University, 744 Motooka, Nishi, Fukuoka 819–0395, Japan
3 Department of Physics, Nagoya University, Furucho, Chikusa, Nagoya, Aichi 464–8062, Japan
4 Kobayashi-Maskawa Institute, Nagoya University, Furucho, Chikusa, Nagoya, Aichi, 464–8062, Japan
5 Institute of Material Structure Science, High Energy Accelerator Organization (KEK), Oho 1–1, Tsukuba, Ibaraki 305–0801, Japan
6 J-PARC center, Japan Atomic Energy Agency, Tokai, Ibaraki 319–1184, Japan
7 Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Japan
a e-mail: firstname.lastname@example.org
Published online: 12 December 2019
It is theoretically suggested that the violation of charge conjugation and parity symmetry (CP-violation) could be enhanced in several compound nuclear reactions. According to the CPT theorem the violation of time-reversal symmetry (T-violation) would be enhanced too. The experimental sensitivity to find a T-violating effect in neutron-induced compound nuclear reactions depends on the value of a spin factor κ(J), which is a parameter specific for each nuclide. It can be determined from the angular dependence of γ-ray emission in (n,γ) reactions induced near a p-wave resonance. In this paper, the measurement result and the analysis status of experiments using the target nucleus 117Sn are reported.
© The Authors, published by EDP Sciences, 2019
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