Zobrazeno 1 - 10
of 9 126
pro vyhledávání: '"Endo, S."'
Autor:
Endo, S., Abe, R., Fujioka, H., Ino, T., Iwamoto, O., Iwamoto, N., Kawamura, S., Kimura, A., Kitaguchi, M., Kobayashi, R., Nakamura, S., Okudaira, T. Oku T., Okuizumi, M., Omer, M., Rovira, G., Shima, T., Shimizu, H. M., Shizuma, T., Taira, Y., Takada, S., Takahashi, S., Yoshikawa, H., Yoshioka, T., Zen, H.
Measurements of circular polarization of $\gamma$-ray emitted from neutron capture reactions provide valuable information for nuclear physics studies. The spin and parity of excited states can be determined by measuring the circular polarization from
Externí odkaz:
http://arxiv.org/abs/2406.15401
Autor:
Okuizumi, M., Auton, C. J., Endo, S., Fujioka, H., Hirota, K., Ino, T., Ishizaki, K., Kimura, A., Kitaguchi, M., Koga, J., Makise, S., Niinomi, Y., Oku, T., Okudaira, T., Sakai, K., Shima, T., Shimizu, H. M., Tada, H., Takada, S., Takahashi, S., Tani, Y., Yamamoto, T., Yoshikawa, H., Yoshioka, T.
The enhancement of the parity-violating asymmetry in the vicinity of $p$-wave compound nuclear resonances was observed for a variety of medium-heavy nuclei. The enhanced parity-violating asymmetry can be understood using the $s$-$p$ mixing model. The
Externí odkaz:
http://arxiv.org/abs/2402.18876
Autor:
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.
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
Externí odkaz:
http://arxiv.org/abs/2312.06115
Autor:
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.
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 p
Externí odkaz:
http://arxiv.org/abs/2309.08905
Autor:
Okudaira, T., Tani, Y., Endo, S., Doskow, J., Fujioka, H., Hirota, K., Kameda, K., Kimura, A., Kitaguchi, M., Luxnat, M., Sakai, K., Schaper, D., Shima, T., Shimizu, H. M., Snow, W. M., Takada, S., Yamamoto, T., Yoshikawa, H., Yoshioka, T.
A neutron-energy dependent angular distribution was measured for individual $\gamma$-rays from the 3.2 eV $p$-wave resonance of $^{131}$Xe+$n$, that shows enhanced parity violation owing to a mixing between $s$- and $p$-wave amplitudes. The $\gamma$-
Externí odkaz:
http://arxiv.org/abs/2212.10889
Autor:
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.
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
Externí odkaz:
http://arxiv.org/abs/2210.15807
Autor:
Koga, J., Takada, S., Endo, S., Fujioka, H., Hirota, K., Ishizaki, K., Kimura, A., Kitaguchi, M., Niinomi, Y., Okudaira, T., Sakai, K., Shima, T., Shimizu, H. M., Tani, Y., Yamamoto, T., Yoshikawa, H., Yoshioka, T.
The neutron energy-dependent angular distribution of $\gamma$ rays from $^{117}{\rm Sn}(n,\gamma)$ reaction was measured with germanium detectors and a pulsed neutron beam. The angular distribution was clearly observed in $\gamma$-ray emissions with
Externí odkaz:
http://arxiv.org/abs/2202.06222
Autor:
Okudaira, T., Endo, S., Fujioka, H., Hirota, K., Ishizaki, K., Kimura, A., Kitaguchi, M., Koga, J., Niinomi, Y., Sakai, K., Shima, T., Shimizu, H. M., Takada, S., Tani, Y., Yamamoto, T., Yoshikawa, H., Yoshioka, T.
Publikováno v:
Phys. Rev. C 104, 014601 (2021)
Neutron energy-dependent angular distributions were observed for individual $\gamma$-rays from the 0.74 eV p-wave resonance of $^{139}$La+$n$ to several lower excited states of $^{140}$La. The $\gamma$-ray signals were analyzed in a two dimensional h
Externí odkaz:
http://arxiv.org/abs/2101.00262
Autor:
Okudaira, T., Oku, T., Ino, T., Hayashida, H., Kira, H., Sakai, K., Hiroi, K., Takahashi, S., Aizawa, K., Endo, H., Endo, S., Hino, M., Hirota, K., Honda, T., Ikeda, K., Kakurai, K., Kambara, W., Kitaguchi, M., Oda, T., Ohshita, H., Otomo, T., Shimizu, H. M., Shinohara, T., Suzuki, J., Yamamoto, T.
We are developing a neutron polarizer with polarized $^3$He gas, referred to as a $^3$He spin filter, based on the Spin Exchange Optical Pumping (SEOP) for polarized neutron scattering experiments at Materials and Life Science Experimental Facility (
Externí odkaz:
http://arxiv.org/abs/2005.14399
Autor:
Yamamoto, T., Okudaira, T., Endo, S., Fujioka, H., Hirota, K., Ino, T., Ishizaki, K., Kimura, A., Kitaguchi, M., Koga, J., Makise, S., Niinomi, Y., Oku, T., Sakai, K., Shima, T., Shimizu, H. M., Takada, S., Tani, Y., Yoshikawa, H., Yoshioka, T.
Publikováno v:
Phys. Rev. C 101, 064624 (2020)
A correlation term ${{ \sigma}_{n} }\cdot ({ k_{n}\times k_\gamma}) $ in the ${}^{139}{\rm La}(\vec{n},\gamma)$ reaction has been studied utilizing epithermal polarized neutrons and germanium detectors. The transverse asymmetry for single $\gamma$-ra
Externí odkaz:
http://arxiv.org/abs/2002.08655