High sensitivity of a future search for P-odd/T-odd interactions on the 0.75 eV $p$-wave resonance in $\vec{n}+^{139}\vec{\rm La}$ forward transmission determined using pulsed neutron beam
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2023
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| author | Nakabe, R. Auton, C. J. Endo, S. Fujioka, H. Gudkov, V. Hirota, K. Ide, I. Ino, T. Ishikado, M. Kambara, W. Kawamura, S. Kimura, A. Kitaguchi, M. Kobayashi, R. Okamura, T. Oku, T. Okudaira, T. Okuizumi, M. Munoz, J. G. Otero Parker, J. D. Sakai, K. Shima, T. Shimizu, H. M. Shinohara, T. Snow, W. M. Takada, S. Takahashi, R. Takahashi, S. Tsuchikawa, Y. Yoshioka, T. |
| author_facet | Nakabe, R. Auton, C. J. Endo, S. Fujioka, H. Gudkov, V. Hirota, K. Ide, I. Ino, T. Ishikado, M. Kambara, W. Kawamura, S. Kimura, A. Kitaguchi, M. Kobayashi, R. Okamura, T. Oku, T. Okudaira, T. Okuizumi, M. Munoz, J. G. Otero Parker, J. D. Sakai, K. Shima, T. Shimizu, H. M. Shinohara, T. Snow, W. M. Takada, S. Takahashi, R. Takahashi, S. Tsuchikawa, Y. Yoshioka, T. |
| contents | Neutron transmission experiments can offer a new type of highly sensitive search for time-reversal invariance violating (TRIV) effects in nucleon-nucleon interactions via the same enhancement mechanism observed for large parity violating (PV) effects in neutron-induced compound nuclear processes. In these compound processes, the TRIV cross-section is given as the product of the PV cross-section, a spin-factor $κ$, and a ratio of TRIV and PV matrix elements. We determined $κ$ to be $0.59\pm0.05$ for $^{139}$La+$n$ using both $(n, γ)$ spectroscopy and ($\vec{n}+^{139}\vec{\rm La}$) transmission. This result quantifies for the first time the high sensitivity of the $^{139}$La 0.75~eV $p$-wave resonance in a future search for P-odd/T-odd interactions in ($\vec{n}+^{139}\vec{\rm La}$) forward transmission. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_06115 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | High sensitivity of a future search for P-odd/T-odd interactions on the 0.75 eV $p$-wave resonance in $\vec{n}+^{139}\vec{\rm La}$ forward transmission determined using pulsed neutron beam Nakabe, R. Auton, C. J. Endo, S. Fujioka, H. Gudkov, V. Hirota, K. Ide, I. Ino, T. Ishikado, M. Kambara, W. Kawamura, S. Kimura, A. Kitaguchi, M. Kobayashi, R. Okamura, T. Oku, T. Okudaira, T. Okuizumi, M. Munoz, J. G. Otero Parker, J. D. Sakai, K. Shima, T. Shimizu, H. M. Shinohara, T. Snow, W. M. Takada, S. Takahashi, R. Takahashi, S. Tsuchikawa, Y. Yoshioka, T. Nuclear Experiment High Energy Physics - Experiment Neutron transmission experiments can offer a new type of highly sensitive search for time-reversal invariance violating (TRIV) effects in nucleon-nucleon interactions via the same enhancement mechanism observed for large parity violating (PV) effects in neutron-induced compound nuclear processes. In these compound processes, the TRIV cross-section is given as the product of the PV cross-section, a spin-factor $κ$, and a ratio of TRIV and PV matrix elements. We determined $κ$ to be $0.59\pm0.05$ for $^{139}$La+$n$ using both $(n, γ)$ spectroscopy and ($\vec{n}+^{139}\vec{\rm La}$) transmission. This result quantifies for the first time the high sensitivity of the $^{139}$La 0.75~eV $p$-wave resonance in a future search for P-odd/T-odd interactions in ($\vec{n}+^{139}\vec{\rm La}$) forward transmission. |
| title | High sensitivity of a future search for P-odd/T-odd interactions on the 0.75 eV $p$-wave resonance in $\vec{n}+^{139}\vec{\rm La}$ forward transmission determined using pulsed neutron beam |
| topic | Nuclear Experiment High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2312.06115 |