Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

Autor: Ekawa, H., Agari, K., Ahn, J. K., Akaishi, T., Akazawa, Y., Ashikaga, S., Bassalleck, B., Bleser, S., Endo, Y., Fujikawa, Y., Fujioka, N., Fujita, M., Goto, R., Han, Y., Hasegawa, S., Hashimoto, T., Hayakawa, S. H., Hayakawa, T., Hayata, E., Hicks, K., Hirose, E., Hirose, M., Honda, R., Hoshino, K., Hoshino, S., Hosomi, K., Hwang, S. H., Ichikawa, Y., Ichikawa, M., Ieiri, M., Imai, K., Inaba, K., Ishikawa, Y., Iskendir, A., Ito, H., Ito, K., Jung, W. S., Kanatsuki, S., Kanauchi, H., Kasagi, A., Kawai, T., Kim, M. H., Kim, S. H., Kinbara, S., Kiuchi, R., Kobayashi, H., Kobayashi, K., Koike, T., Koshikawa, A., Lee, J. Y., Lee, J. W., Ma, T. L., Matsumoto, S. Y., Minakawa, M., Miwa, K., Moe, A. T., Moon, T. J., Moritsu, M., Nagase, Y., Nakada, Y., Nakagawa, M., Nakashima, D., Nakazawa, K., Nanamura, T., Naruki, M., Nyaw, A. N. L., Ogura, Y., Ohashi, M., Oue, K., Ozawa, S., Pochodzalla, J., Ryu, S. Y., Sako, H., Sasaki, Y., Sato, S., Sato, Y., Schupp, F., Shirotori, K., Soe, M. M., Soe, M. K., Sohn, J. Y., Sugimura, H., Suzuki, K. N., Takahashi, H., Takahashi, T., Takahashi, Y., Takeda, T., Tamura, H., Tanida, K., Theint, A. M. M., Tint, K. T., Toyama, Y., Ukai, M., Umezaki, E., Watabe, T., Watanabe, K., Yamamoto, T. O., Yang, S. B., Yoon, C. S., Yoshida, J., Yoshimoto, M., Zhang, D. H., Zhang, Z.

Publikováno v: Prog. Theor. Exp. Phys. 2019, 021D02 (2019)

A double-$\Lambda$ hypernucleus, ${}_{\Lambda\Lambda}\mathrm{Be}$, was observed by the J-PARC E07 collaboration in nuclear emulsions tagged by the $(K^{-},K^{+})$ reaction. This event was interpreted as a production and decay of $ {}_{\Lambda\Lambda}

Externí odkaz: http://arxiv.org/abs/1811.07726

Development of Water $\v{C}$erenkov Detector for On-line Proton Rejection in $\Xi^{-}$ Hypernuclear Spectroscopy via the $(K^{-},K^{+})$ Reaction

Autor: Gogami, T., Amano, N., Kanatsuki, S., Nagae, T., Takenaka, K.

Publikováno v: Nucl. Instrum. Methods Phys. Res. A 817, 70-84 (2016)

The missing mass spectroscopy of $\Xi^{-}$ hypernuclei with the $(K^{-},K^{+})$ reaction is planned to be performed at the J-PARC K1.8 beam line by using a new magnetic spectrometer, Strangeness $-2$ Spectrometer (S-2S). A $\v{C}$cerenkov detector wi

Externí odkaz: http://arxiv.org/abs/1511.02472

High-resolution search for the $\Theta^{+}$ pentaquark via a pion-induced reaction at J-PARC

Autor: Collaboration, J-PARC E19, Moritsu, M., Adachi, S., Agnello, M., Ajimura, S., Aoki, K., Bhang, H. C., Bassalleck, B., Botta, E., Bufalino, S., Chiga, N., Ekawa, H., Evtoukhovitch, P., Feliciello, A., Fujioka, H., Hayakawa, S., Hiruma, F., Honda, R., Hosomi, K., Ichikawa, Y., Ieiri, M., Igarashi, Y., Imai, K., Ishibashi, N., Ishimoto, S., Itahashi, K., Iwasaki, R., Joo, C. W., Kanatsuki, S., Kim, M. J., Kim, S. J., Kiuchi, R., Koike, T., Komatsu, Y., Kulikov, V. V., Marcello, S., Masumoto, S., Matsumoto, Y., Matsuoka, K., Miwa, K., Nagae, T., Naruki, M., Niiyama, M., Noumi, H., Nozawa, Y., Ota, R., Ozawa, K., Saito, N., Sakaguchi, A., Sako, H., Samoilov, V., Sato, M., Sato, S., Sato, Y., Sawada, S., Sekimoto, M., Shirotori, K., Sugimura, H., Suzuki, S., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, T., Tanida, K., Tokiyasu, A. O., Tomida, N., Tsamalaidze, Z., Ukai, M., Yagi, K., Yamamoto, T. O., Yang, S. B., Yonemoto, Y., Yoon, C. J., Yoshida, K.

Publikováno v: Phys. Rev. C 90, 035205 (2014)

The pentaquark $\Theta^+$ has been searched for via the $\pi^-p \to K^-X$ reaction with beam momenta of 1.92 and 2.01 GeV/$c$ at J-PARC. A missing mass resolution of 2 MeV (FWHM) was achieved but no sharp peak structure was observed. The upper limits

Externí odkaz: http://arxiv.org/abs/1407.0669

Search for the [formula omitted] pentaquark at J-PARC

Autor: Moritsu, M., Adachi, S., Agnello, M., Ajimura, S., Aoki, K., Bhang, H.C., Bassalleck, B., Botta, E., Bufalino, S., Chiga, N., Ekawa, H., Evtoukhovitch, P., Feliciello, A., Fujioka, H., Hayakawa, S., Hiruma, F., Honda, R., Hosomi, K., Ichikawa, Y., Ieiri, M., Igarashi, Y., Imai, K., Ishibashi, N., Ishimoto, S., Itahashi, K., Iwasaki, R., Joo, C.W., Kanatsuki, S., Kim, M.J., Kim, S.J., Kiuchi, R., Koike, T., Komatsu, Y., Kulikov, V.V., Marcello, S., Masumoto, S., Matsumoto, Y., Matsuoka, K., Miwa, K., Nagae, T., Naruki, M., Niiyama, M., Noumi, H., Nozawa, Y., Ota, R., Ozawa, K., Saito, N., Sakaguchi, A., Sako, H., Samoilov, V., Sato, M., Sato, S., Sato, Y., Sawada, S., Sekimoto, M., Shirotori, K., Sugimura, H., Suzuki, S., Takahashi, H., Takahashi, T., Takahashi, T.N., Tamura, H., Tanaka, T., Tanida, K., Tokiyasu, A.O., Tomida, N., Tsamalaidze, Z., Ukai, M., Yagi, K., Yamamoto, T.O., Yang, S.B., Yonemoto, Y., Yoon, C.J., Yoshida, K.

Publikováno v: In Nuclear Physics, Section A 20 September 2013 914:91-96

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