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: email@example.com
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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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