| Title: |
Spin dependence in the $p$-wave resonance of ${^{139}\vec{\rm{La}}+\vec{n}}$ |
| Authors: |
Okudaira, T., Nakabe, R., Endo, S., Fujioka, H., Gudkov, V., Ide, I., Ino, T., Ishikado, M., Kambara, W., Kawamura, S., Kobayashi, R., Kitaguchi, M., Okamura, T., Oku, T., Munoz, J. G. Otero, Parker, J. D., Sakai, K., Shima, T., Shimizu, H. M., Shinohara, T., Snow, W. M., Takada, S., Tsuchikawa, Y., Takahashi, R., Takahashi, S., Yoshikawa, H., Yoshioka, T. |
| Publication Year: |
2023 |
| Collection: |
Nuclear Experiment |
| Subject Terms: |
Nuclear Experiment |
| More Details: |
We measured the spin dependence in a neutron-induced $p$-wave resonance by using a polarized epithermal neutron beam and a polarized nuclear target. Our study focuses on the 0.75~eV $p$-wave resonance state of $^{139}$La+$n$, where largely enhanced parity violation has been observed. We determined the partial neutron width of the $p$-wave resonance by measuring the spin dependence of the neutron absorption cross section between polarized $^{139}\rm{La}$ and polarized neutrons. Our findings serve as a foundation for the quantitative study of the enhancement effect of the discrete symmetry violations caused by mixing between partial amplitudes in the compound nuclei. |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/2309.08905 |
| Accession Number: |
edsarx.2309.08905 |
| Database: |
arXiv |
