Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Shimogawa T"'
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:
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:
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
Autor:
Masuda, T., Ahn, J. K., Banno, S., Campbell, M., Comfort, J., Duh, Y. T., Hineno, T., Hsiung, Y. B., Inagaki, T., Iwai, E., Kawasaki, N., Kim, E. J., Kim, Y. J., Ko, J. W., Komatsubara, T. K., Kurilin, A. S., Lee, G. H., Lee, J. W., Lee, S. K., Lim, G. Y., Ma, J., MacFarland, D., Maeda, Y., Matsumura, T., Murayama, R., Naito, D., Nakaya, Y., Nanjo, H., Nomura, T., Odani, Y., Okuno, H., Ri, Y. D., Sasao, N., Sato, K., Sato, T., Seki, S., Shimogawa, T., Shinkawa, T., Shiomi, K., Son, J. S., Sugiyama, Y., Suzuki, S., Tajima, Y., Takahashi, G., Takashima, Y., Tecchio, M., Togawa, M., Toyoda, T., Tung, Y. C., Wah, Y. W., Watanabe, H., Woo, J. K., Xu, J., Yamanaka, T., Yanagida, Y., Yoshida, H. Y., Yoshimoto, H.
Publikováno v:
Prog. Theor. Exp. Phys. 2016, 013C03
The KOTO ($K^0$ at Tokai) experiment aims to observe the CP-violating rare decay $K_L \rightarrow \pi^0 \nu \bar{\nu}$ by using a long-lived neutral-kaon beam produced by the 30 GeV proton beam at the Japan Proton Accelerator Research Complex. The $K
Externí odkaz:
http://arxiv.org/abs/1509.03386
Autor:
Sato, K., Lee, J.W., Banno, S., Campbell, M., Comfort, J., Furukawa, T., Iwai, E., Kawasaki, N., Komatsubara, T.K., Lim, G.Y., Maeda, Y., Masuda, T., Matsumura, T., Mcfarland, D., Murayama, R., Naito, D., Nakaya, Y., Nanjo, H., Nomura, T., Odani, Y., Ota, T., Ri, Y.D., Sasaki, M., Sasao, N., Seki, S., Shimogawa, T., Shinkawa, T., Shiomi, K., Sugiyama, Y., Suzuki, S., Tajima, Y., Tecchio, M., Togawa, M., Yamanaka, T., Yanagida, Y., Yokota, H., Yoshimoto, H., Wah, Y.W., Watanabe, H., Xu, J.
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A 1 December 2020 982
Autor:
E391a Collaboration, Ogata, R., Suzuki, S., Ahn, J. K., Akune, Y., Baranov, V., Chen, K. F., Comfort, J., Doroshenko, M., Fujioka, Y., Hsiung, Y. B., Inagaki, T., Ishibashi, S., Ishihara, N., Ishii, H., Iwai, E., Iwata, T., Kato, I., Kobayashi, S., Komatsu, S., Komatsubara, T. K., Kurilin, A. S., Kuzmin, E., Lednev, A., Lee, H. S., Lee, S. Y., Lim, G. Y., Ma, J., Matsumura, T., Moisseenko, A., Morii, H., Morimoto, T., Nakajima, Y., Nakano, T., Nanjo, H., Nishi, N., Nix, J., Nomura, T., Nomachi, M., Okuno, H., Omata, K., Perdue, G. N., Perov, S., Podolsky, S., Porokhovoy, S., Sakashita, K., Sasaki, T., Sasao, N., Sato, H., Sato, T., Sekimoto, M., Shimogawa, T., Shinkawa, T., Stepanenko, Y., Sugaya, Y., Sugiyama, A., Sumida, T., Tajima, Y., Takita, S., Tsamalaidze, Z., Tsukamoto, T., Tung, Y. C., Wah, Y. W., Watanabe, H., Wu, M. L., Yamaga, M., Yamanaka, T., Yoshida, H. Y., Yoshimura, Y., Zheng, Y.
The rare decay K0(L) --> pi0 pi0 nu nu-bar was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4 x 10^9 K0L decays, an upper limit of 8.1 x 10^{-7} was obtained for the branching fraction at 90% confidence level. We a
Externí odkaz:
http://arxiv.org/abs/1106.3404
Autor:
Tung, Y. C., Hsiung, Y. B., Ahn, J. K., Akune, Y., Baranov, V., Chen, K. F., Comfort, J., Doroshenko, M., Fujioka, Y., Inagaki, T., Ishibashi, S., Ishihara, N., Ishii, H., Iwai, E., Iwata, T., Kato, I., Kobayashi, S., Komatsu, S., Komatsubara, T. K., Kurilin, A. S., Kuzmin, E., Lednev, A., Lee, H. S., Lee, S. Y., Lim, G. Y., Ma, J., Matsumura, T., Moisseenko, A., Morii, H., Morimoto, T., Nakajima, Y., Nakano, T., Nanjo, H., Nishi, N., Nix, J., Nomura, T., Nomachi, M., Ogata, R., Okuno, H., Omata, K., Perdue, G. N., Perov, S., Podolsky, S., Porokhovoy, S., Sakashita, K., Sasaki, T., Sasao, N., Sato, H., Sato, T., Sekimoto, M., Shimogawa, T., Shinkawa, T., Stepanenko, Y., Sugaya, Y., Sugiyama, A., Sumida, T., Suzuki, S., Tajima, Y., Takita, S., Tsamalaidze, Z., Tsukamoto, T., Wah, Y., Watanabe, H., Wu, M. L., Yamaga, M., Yamanaka, T., Yoshida, H. Y., Yoshimura, Y., Zheng, Y.
Publikováno v:
Phys.Rev.D83:031101,2011
We performed a search for the decay $K_L^0 \rightarrow 3\gamma$ with the E391a detector at KEK. In the data accumulated in 2005, no event was observed in the signal region. Based on the assumption of $K_L^0 \rightarrow 3\gamma$ proceeding via parity-
Externí odkaz:
http://arxiv.org/abs/1011.4403
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