| Title: |
Measurement of the transverse asymmetry of $\gamma$-rays in the $^{117}$Sn(n,$\gamma$)$^{118}$Sn reaction |
| Authors: |
Endo, S., Okudaira, T., Abe, R., Fujioka, H., Hirota, K., Kimura, A., Kitaguchi, M., Oku, T., Sakai, K., Shima, T., Shimizu, H. M., Takada, S., Takahashi, S., Yamamoto, T., Yoshikawa, H., Yoshioka, T. |
| Publication Year: |
2022 |
| Collection: |
Nuclear Experiment |
| Subject Terms: |
Nuclear Experiment |
| More Details: |
Largely enhanced parity-violating effects observed in compound resonances induced by epithermal neutrons are currently attributed to the mixing of parity-unfavored partial amplitudes in the entrance channel of the compound states. Furthermore, it is proposed that the same mechanism that enhances the parity-violation also enhances the breaking of time-reversal-invariance in the compound nucleus. The entrance-channel mixing induces energy-dependent spin-angular correlations of individual $\gamma$-rays emitted from the compound nuclear state. For a detailed study of the mixing model, a $\gamma$-ray yield in the reaction of $^{117}$Sn(n,$\gamma$)$^{118}$Sn was measured using the pulsed beam of polarized epithermal neutrons and Ge detectors. An angular dependence of asymmetric $\gamma$-ray yields for the orientation of the neutron polarization was observed.
Comment: 7 pages, 10 figures |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevC.106.064601 |
| Access URL: |
http://arxiv.org/abs/2210.15807 |
| Accession Number: |
edsarx.2210.15807 |
| Database: |
arXiv |
