Zobrazeno 1 - 10
of 7 624
pro vyhledávání: '"Hirota, K"'
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., 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:
Sumi, N., Hirota, K., Ichikawa, G., Ino, T., Iwashita, Y., Kajiwara, S., Kato, Y., Kitaguchi, M., Mishima, K., Morikawa, K., Mogi, T., Oide, H., Okabe, H., Otono, H., Shima, T., Shimizu, H. M., Sugisawa, Y., Tanabe, T., Yamashita, S., Yano, K., Yoshioka, T.
A neutron decays into a proton, an electron, and an anti-neutrino through the beta-decay process. The decay lifetime ($\sim$880 s) is an important parameter in the weak interaction. For example, the neutron lifetime is a parameter used to determine t
Externí odkaz:
http://arxiv.org/abs/2102.09758
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:
Hirota, K., Ichikawa, G., Ieki, S., Ino, T., Iwashita, Y., Kitaguchi, M., Kitahara, R., Koga, J., Mishima, K., Mogi, T., Morikawa, K., Morishita, A., Nagakura, N., Oide, H., Okabe, H., Otono, H., Seki, Y., Sekiba, D., Shima, T., Shimizu, H. M., Sumi, N., Sumino, H., Tomita, T., Uehara, H., Yamada, T., Yamashita, S., Yano, K., Yokohashi, M., Yoshioka, T.
Publikováno v:
Prog Theor Exp Phys (2020)
The neutron lifetime has been measured by comparing the decay rate with the reaction rate of $^3$He nuclei of a pulsed neutron beam from the spallation neutron source at the Japan Proton Accelerator Research Complex (J-PARC). The decay rate and the r
Externí odkaz:
http://arxiv.org/abs/2007.11293
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