Observation of Ξ bound states in the 12C(K-,K+)X reaction at 1.8 GeV/c in J-PARC

T. Nagae, S. Kanatsuki, Toshiyuki Gogami, H. Ekawa, T. Nanamura, M. Naruki, S. Hasegawa, K. Hosomi, Y. Ichikawa, K. Imai, H. Sako, S. Sato, H. Sugimura, K. Tanida, K. Kobayashi, Shuhei Hayakawa, T. Hayakawa, Ryotaro Honda, Y. Nakada, M. NakagawaA. Sakaguchi, Y. Akazawa, M. Fujita, K. Miwa, Y. Sasaki, H. Tamura, T. O. Yamamoto, K. Aoki, T. Takahashi, M. Ukai, J. K. Ahn, W. Jung, S. H. Kim, E. Botta, A. Feliciello, S. Marcello, P. Evtoukhovitch, Z. Tsamalaidze, J. Y. Lee, T. Moon, S. Kimbara, T. Hasegawa, K. Shirotori

研究成果: Conference article査読


We have carried out a pilot data taking of the J-PARC E05 experiment to search for the bound state peaks of 12Ξ Be in the 12C(K-,K+)X reaction at 1.8 GeV/c. The measurement was performed at the K1.8 beam line of the J-PARC hadron experimental hall with a typical K- beam intensity of 6×105 every six seconds. So far the best energy resolution of about 6 MeVFWHM was achieved with the existing SKS spectrometer. With a reasonable statistics, we have succeeded to observe peak structures in the bound region, which seems to suggest that the potential depth of Ξ would be deeper than 14 MeV estimated in the previous measurements.

ジャーナルProceedings of Science
出版ステータスPublished - 2016
イベント26th International Nuclear Physics Conference, INPC 2016 - Adelaide, Australia
継続期間: 2016 9月 112016 9月 16

ASJC Scopus subject areas

  • 一般


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