Search for the K−pp bound state via the in-flight 3He(K−, n) reaction
oleh: Sada Y., Ajimura S., Beer G., Bhang H., Bragadireanu M., Buehler P., Busso L., Cargnelli M., Choi S., Curceanu C., Enomoto S., Faso D., Fujioka H., Fujiwara Y., Fukuda T., Guaraldo C., Hashimoto T., Hayano R. S., Hiraiwa T., Iio M., Iliescu M., Inoue K., Ishiguro Y., Ishikawa T., Ishimoto S., Ishiwatari T., Itahashi K., Iwai M., Iwasaki M., Kato Y., Kawasaki S., Kienle P., Kou H., Ma Y., Marton J., Matsuda Y., Mizoi Y., Morra O., Nagae T., Noumi H., Ohnishi H., Okada S., Outa H., Piscicchia K., Poli Lener M., Romero Vidal A., Sakaguchi A., Sakuma F., Sato M., Scordo A., Sekimoto M., Shi H., Sirghi D., Sirghi F., Suzuki K., Suzuki S., Suzuki T., Tanida K., Tatsuno H., Tokuda M., Tomono D., Toyoda A., Tsukada K., Vazquez Doce O., Widmann E., Weunschek B. K., Yamaga T., Yamazaki T., Yim H., Zhang Q., Zmeskal J.
| Format: | Article |
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| Diterbitkan: | EDP Sciences 2014-01-01 |
Deskripsi
In the J-PARC E15 experiment, a K− pp search was performed via the 3He(K−, n) reaction at 1.0 GeV/c. A forward-going neutron is detected by a neutron counter with 15 m flight length, and decay particles from K− pp are simultaneously measured by a cylindrical detector system that surrounds a liquid 3He target system. In March and May, 2013, we carried out the first physics data-taking with 5×109 incident kaons on the 3He target, and we have obtained a preliminary exclusive analysis result of 3He(K−, Λp)n reaction.