Gamma-ray spectroscopy of 12ΛC via the (π +, K +) reaction

K. Hosomi, S. Ajimura, K. Aoki, M. Dairaku, Y. Y. Fu, H. Fujioka, T. Fukuda, K. Futatsukawa, W. Imoto, Y. Kakiguchi, M. Kawai, S. Kinoshita, T. Koike, Y. Ma, N. Maruyamai, M. Mimori, S. Minami, Y. Miura, K. Miwa, Y. MiyagiT. Nagae, D. Nakajima, H. Noumi, K. Shirotori, T. Suzuki, T. Takahashi, T. N. Takahashi, H. Tamura, K. Tanida, N. Terada, A. Toyoda, K. Tsukada, M. Ukai, S. H. Zhou

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


A γ-ray spectroscopy experiment via the C12(π+,K+) reaction was carried out at KEK-PS in 2005. The K6 beam line and Superconducting Kaon Spectrometer (SKS) were employed to obtain a missing mass spectrum for 12ΛC. An upgraded germanium detector array, Hyperball2, was introduced to detect γ rays emitted from hypernuclei in coincidence with the (π +, K +) reaction. As a result of further analysis, a γ-ray peak at 6048 keV (preliminary) was newly observed and assigned as the M1 transition from the 6-MeV excited state to the ground state.

Original languageEnglish
Pages (from-to)184-188
Number of pages5
JournalNuclear Physics A
Publication statusPublished - 2013


  • Λ hypernuclei
  • ΛN interaction
  • γ-Ray spectroscopy
  • Hyperball


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