Zobrazeno 1 - 10
of 4 214
pro vyhledávání: '"Shinkawa T"'
Autor:
KOTO Collaboration, Ahm, J. K., Farriagton, M., Gonzalez, M., Grethen, N., Hanai, K., Hara, N., Haraguchi, H., Hsiung, Y. B., Inagaki, T., Katayama, M., Kato, T., Kawata, Y., Kim, E. J., Kim, H. M., Kitagawa, A., Komatsubara, T. K., Kotera, K., Lee, S. K., Li, X., Lim, G. Y., Lin, C., Luo, Y., Mari, T., Matsumura, T., Morioka, I., Nanjo, H., Nishimiya, H., Noichi, Y., Nomura, T., Ono, K., Osugi, M., Paschos, P., Redeker, J., Sato, T., Sato, Y., Shibata, T., Shimizu, N., Shinkawa, T., Shiomi, K., Shiraishi, R., Suzuki, S., Tajima, Y., Taylor, N., Tung, Y. C., Wah, Y. W., Watanabe, H., Wu, T., Yamanaka, T., Yoshida, H. Y.
We performed a search for the $K_L \to \pi^{0} \nu \bar{\nu}$ decay using the data taken in 2021 at the J-PARC KOTO experiment. With newly installed counters and new analysis method, the expected background was suppressed to $0.252\pm0.055_{\mathrm{s
Externí odkaz:
http://arxiv.org/abs/2411.11237
Autor:
Lin, C., Ahn, J. K., Choi, J. M., Farrington, M. S., Gonzalez, M., Grethen, N., Hsiung, Y. B., Inagaki, T., Kamiji, I., Kim, E. J., Kim, J. L., Kim, H. M., Kawata, K., Kitagawa, A., Komatsubara, T. K., Kotera, K., Lee, S. K., Lee, J. W., Lim, G. Y., Luo, Y., Matsumura, T., Nakagiri, K., Nanjo, H., Nomura, T., Ono, K., Redeker, J. C., Sato, T., Sasse, V., Shibata, T., Shimizu, N., Shinkawa, T., Shinohara, S., Shiomi, K., Shiraishi, R., Suzuki, S., Tajima, Y., Tung, Y. -C., Wah, Y. W., Watanabe, H., Wu, T., Yamanaka, T., Yoshida, H. Y.
We present the first search for the pair production of dark particles $X$ via $K_L^0\to XX$ with $X$ decaying into two photons using the data collected by the KOTO experiment. No signal was observed in the mass range of 40 - 110 MeV/c$^2$ and 210 - 2
Externí odkaz:
http://arxiv.org/abs/2209.11019
Autor:
Nakayama Y; Department of Pediatric Cardiovascular Surgery, Matsudo City General Hospital, 993-1, Sendabori, Matsudo, Chiba, 270-2296, Japan. yuki-n@med.mie-u.ac.jp., Shinkawa T; Department of Cardiovascular Surgery, Tokyo Women's Medical University, 8-1, Kawada, Shinjuku, Tokyo, 162-8666, Japan.
Publikováno v:
Pediatric cardiology [Pediatr Cardiol] 2024 Oct; Vol. 45 (7), pp. 1615-1616. Date of Electronic Publication: 2024 Jul 19.
Autor:
KOTO Collaboration, Ahn, J. K., Beckford, B., Campbell, M., Chen, S. H., Comfort, J., Dona, K., Farrington, M. S., Hanai, K., Hara, N., Haraguchi, H., Hsiung, Y. B., Hutcheson, M., Inagaki, T., Isoe, M., Kamiji, I., Kato, T., Kim, E. J., Kim, J. L., Kim, H. M., Komatsubara, T. K., Kotera, K., Lee, S. K., Lee, J. W., Lim, G. Y., Lin, Q. S., Lin, C., Luo, Y., Mari, T., Masuda, T., Matsumura, T., Mcfarland, D., McNeal, N., Miyazaki, K., Murayama, R., Nakagiri, K., Nanjo, H., Nishimiya, H., Noichi, Y., Nomura, T., Nunes, T., Ohsugi, M., Okuno, H., Redeker, J. C., Sanchez, J., Sasaki, M., Sasao, N., Sato, T., Sato, K., Sato, Y., Shimizu, N., Shimogawa, T., Shinkawa, T., Shinohara, S., Shiomi, K., Shiraishi, R., Su, S., Sugiyama, Y., Suzuki, S., Tajima, Y., Taylor, M., Tecchio, M., Togawa, M., Toyoda, T., Tung, Y. -C., Vuong, Q. H., Wah, Y. W., Watanabe, H., Yamanaka, T., Yoshida, H. Y., Zaidenberg, L.
Publikováno v:
Phys. Rev. Lett. 126, 121801 (2021)
The rare decay $K_L \!\to\! \pi^0 \nu \overline{\nu}$ was studied with the dataset taken at the J-PARC KOTO experiment in 2016, 2017, and 2018. With a single event sensitivity of $( 7.20 \pm 0.05_{\rm stat} \pm 0.66_{\rm syst} ) \times 10^{-10}$, thr
Externí odkaz:
http://arxiv.org/abs/2012.07571
Autor:
Ahn, J. K., Beckford, B., Campbell, M., Chen, S. H., Choi, J. M., Comfort, J., Dona, K., Farrington, M. S., Hara, N., Haraguchi, H., Hsiung, Y. B., Hutcheson, M., Inagaki, T., Isoe, M., Kamiji, I., Kim, E. J., Kim, J. L., Kim, H. M., Komatsubara, T. K., Kotera, K., Lee, J. W., Lim, G. Y., Lin, C., Lin, Q. S., Luo, Y., Mari, T., Matsumura, T., Mcfarland, D., Miyazaki, K., Murayama, R., Nakagiri, K., Nanjo, H., Nishimiya, H., Noichi, Y., Nomura, T., Nunes, T., Ohsugi, M., Okuno, H., Redeker, J. C., Sato, K., Sato, T., Sato, Y., Shimizu, N., Shimogawa, T., Shinkawa, T., Shinohara, S., Shiomi, K., Shiraishi, R., Su, S., Sugiyama, Y., Suzuki, S., Tajima, Y., Taylor, M., Tecchio, M., Togawa, M., Toyoda, T., Tung, Y. C., Vuong, Q. H., Wah, Y. W., Watanabe, H., Yamanaka, T., Yoshida, H. Y.
Publikováno v:
Phys. Rev. D 102, 051103 (2020)
We report the first search for the $K_L \to \pi^0 \gamma$ decay, which is forbidden by Lorentz invariance, using the data from 2016 to 2018 at the J-PARC KOTO experiment. With a single event sensitivity of $(7.1\pm 0.3_{\rm stat.} \pm 1.6_{\rm syst.}
Externí odkaz:
http://arxiv.org/abs/2006.14918
Autor:
KOTO Collaboration, Ahn, J. K., Beckford, B., Beechert, J., Bryant, K., Campbell, M., Chen, S. H., Comfort, J., Dona, K., Hara, N., Haraguchi, H., Hsiung, Y. B., Hutcheson, M., Inagaki, T., Kamiji, I., Kawasaki, N., Kim, E. J., Kim, J. L., Kim, Y. J., Ko, J. W., Komatsubara, T. K., Kotera, K., Kurilin, A. S., Lee, J. W., Lim, G. Y., Lin, C., Lin, Q., Luo, Y., Ma, J., Maeda, Y., Mari, T., Masuda, T., Matsumura, T., Mcfarland, D., McNeal, N., Micallef, J., Miyazaki, K., Murayama, R., Naito, D., Nakagiri, K., Nanjo, H., Nishimiya, H., Nomura, T., Ohsugi, M., Okuno, H., Sasaki, M., Sasao, N., Sato, K., Sato, T., Sato, Y., Schamis, H., Seki, S., Shimizu, N., Shimogawa, T., Shinkawa, T., Shinohara, S., Shiomi, K., Su, S., Sugiyama, Y., Suzuki, S., Tajima, Y., Taylor, M., Tecchio, M., Togawa, M., Tung, Y. C., Wah, Y. W., Watanabe, H., Woo, J. K., Yamanaka, T., Yoshida, H. Y.
Publikováno v:
Phys. Rev. Lett. 122, 021802 (2019)
A search for the rare decay $K_L \!\to\! \pi^0 \nu \overline{\nu}$ was performed. With the data collected in 2015, corresponding to $2.2 \times 10^{19}$ protons on target, a single event sensitivity of $( 1.30 \pm 0.01_{\rm stat} \pm 0.14_{\rm syst}
Externí odkaz:
http://arxiv.org/abs/1810.09655
Autor:
Nakayama Y; Department of Pediatric Cardiovascular Surgery, Matsudo City General Hospital, 993-1, Sendabori, Matsudo, Chiba, 270-2296, Japan. yuki-n@med.mie-u.ac.jp., Horimoto Y; Department of Pediatrics, Matsudo City General Hospital, 993-1 Sendabori, Matsudo, Chiba, 270-2296, Japan., Suzuki K; Department of Pediatrics, Matsudo City General Hospital, 993-1 Sendabori, Matsudo, Chiba, 270-2296, Japan., Takiguchi M; Department of Pediatric Cardiovascular Surgery, Matsudo City General Hospital, 993-1, Sendabori, Matsudo, Chiba, 270-2296, Japan., Ishihara K; Department of Pediatric Cardiovascular Surgery, Matsudo City General Hospital, 993-1, Sendabori, Matsudo, Chiba, 270-2296, Japan., Umehara N; Department of Cardiovascular Surgery, Matsudo City General Hospital, 993-1, Sendabori, Matsudo, Chiba, 270-2296, Japan., Shinkawa T; Department of Cardiovascular Surgery, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
Publikováno v:
Pediatric cardiology [Pediatr Cardiol] 2024 Jun 25. Date of Electronic Publication: 2024 Jun 25.
Autor:
Ahn, J. K., Baek, K. Y., Banno, S., Beckford, B., Brubaker, B., Cai, T., Campbell, M., Carruth, C., Chen, S. H., Chu, S., Comfort, J., Duh, Y. T., Furukawa, T., Haraguchi, H., Hineno, T., Hsiung, Y. B., Hutcheson, M., Inagaki, T., Isoe, M., Iwai, E., Kamibayashi, T., Kamiji, I., Kawasaki, N., Kim, E. J., Kim, Y. J., Ko, J. W., Komatsubara, T. K., Kurilin, A. S., Lee, G. H., Lee, H. S., Lee, J. W., Lee, S. K., Lim, G. Y., Lin, C., Ma, J., Maeda, Y., Masuda, T., Matsumura, T., Mcfarland, D., Micallef, J., Miyazaki, K., Morgan, K., Murayama, R., Naito, D., Nakagiri, K., Nakajima, Y., Nakaya, Y., Nanjo, H., Nomura, T., Odani, Y., Ogata, R., Okuno, H., Ota, T., Ri, Y. D., Sasaki, M., Sasao, N., Sato, K., Sato, T., Seki, S., Shimogawa, T., Shinkawa, T., Shinohara, S., Shiomi, K., Son, J. S., Stevens, J., Su, S., Sugiyama, Y., Suzuki, S., Tajima, Y., Takahashi, G., Takashima, Y., Tecchio, M., Teo, I., Togawa, M., Toyoda, T., Tung, Y. C., Usuki, T., Wah, Y. W., Watanabe, H., Whallon, N., Woo, J. K., Xu, J., Yamaga, M., Yamamoto, S., Yamanaka, T., Yamauchi, H., Yanagida, Y., Yokota, H., Yoshida, H. Y., Yoshimoto, H.
Publikováno v:
Prog. Theor. Exp. Phys. (2017) 021C01
We searched for the $CP$-violating rare decay of neutral kaon, $K_{L} \to \pi^0 \nu \overline{\nu}$, in data from the first 100 hours of physics running in 2013 of the J-PARC KOTO experiment. One candidate event was observed while $0.34\pm0.16$ backg
Externí odkaz:
http://arxiv.org/abs/1609.03637
Autor:
Artamonov, A. V., Bassalleck, B., Bhuyan, B., Blackmore, E. W., Bryman, D. A., Chen, S., Chiang, I-H., Christidi, I. -A., Cooper, P. S., Diwan, M. V., Frank, J. S., Fujiwara, T., Hu, J., Ives, J., Izmaylov, A. O., Jaffe, D. E., Kabe, S., Kettell, S. H., Khabibullin, M. M., Khotjantsev, A. N., Kitching, P., Kobayashi, M., Komatsubara, T. K., Konaka, A., Kudenko, Yu. G., Landsberg, L. G., Lewis, B., Li, K. K., Littenberg, L. S., Macdonald, J. A., Mildenberger, J., Mineev, O. V., Miyajima, M., Mizouchi, K., Muramatsu, N., Nakano, T., Nomachi, M., Nomura, T., Numao, T., Obraztsov, V. F., Omata, K., Patalakha, D. I., Poutissou, R., Redlinger, G., Sato, T., Sekiguchi, T., Shaikhiev, A. T., Shinkawa, T., Strand, R. C., Sugimoto, S., Tamagawa, Y., Tschirhart, R., Tsunemi, T., Vavilov, D. V., Viren, B., Wang, Zhe, Wei, Hanyu, Yershov, N. V., Yoshimura, Y., Yoshioka, T.
Publikováno v:
Phys. Rev. D 94, 032012 (2016)
Evidence of the $K^+\to\mu^+\nu\bar\nu\nu$ decay was searched for using E949 experimental data with an exposure of $1.70\times 10^{12}$ stopped kaons. The data sample is dominated by the backgrond process $K^+\to\mu^+\nu_\mu\gamma$. An upper limit on
Externí odkaz:
http://arxiv.org/abs/1606.09054
Autor:
Sugiyama, Y., Ahn, J.K., Banno, S., Beckford, B., Campbell, M., Chen, S.H., Comfort, J., Duh, Y.T., Hineno, T., Hsiung, Y.B., Hutcheson, M., Iwai, E., Kamiji, I., Kawasaki, N., Kim, E.J., Kim, J.L., Kim, Y.J., Ko, J.W., Komatsubara, T.K., Kurilin, A.S., Lee, J.W., Lee, S.K., Lim, G.Y., Lin, C., Lin, Q., Luo, Y., Ma, J., Maeda, Y., Masuda, T., Matsumura, T., Mcfarland, D., Murayama, R., Naito, D., Nakagiri, K., Nakaya, Y., Nanjo, H., Nomura, T., Odani, Y., Redeker, J.C., Ri, Y.D., Sasao, N., Sato, K., Seki, S., Shimogawa, T., Shinkawa, T., Shinohara, S., Shiomi, K., Su, S., Suzuki, S., Tajima, Y., Takahashi, G., Takashima, Y., Tecchio, M., Togawa, M., Tung, Y.C., Wah, Y.W., Watanabe, H., Whallon, N., Woo, J.K., Xu, J., Yamanaka, T., Yanagida, Y., Yoshida, H.Y., Yoshimoto, H.
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A 21 January 2021 987