Measurement of gamma-rays from Λ 11B and Λ 12C

Yuan Yong Fu, Shu Hua Zhou, T. Koike, S. Kinoshita, Y. Ma, Y. Miura, K. Miwa, Y. Miyagi, K. Shirotori, T. Suzuki, H. Tamura, K. Tsukada, M. Ukai, K. Futatsukawa, K. Hosomi, M. Kawai, M. Mimori, N. Terada, N. Maruyama, K. AokiH. Fujioka, Y. Kakiguchi, T. Nagae, D. Nakajima, H. Noumi, T. Takahashi, T. N. Takahashi, A. Toyota, M. Dairaku, T. Fukuda, S. Minami, W. Imoto, S. Ajimura, K. Tanida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

From the 12C(π +, K +) 12 ΛC reaction, the γ-rays of 261.60.24keV (7/2 +5/2 +) and 1481.70.7keV (1/2 +5/2 +) of 11 ΛB, and 2667.32.8keV (1 2 -2 1 -) of 12 ΛC hypernuclei have been identified using a large germanium detector array Hyperball2 at K6 beam line of KEK. The observed energies of the transitions 1481.7keV and 261.6keV are significantly different from the values predicted by the shell model using the Δ and S N parameters determined from the 7 ΛLi data.

Original languageEnglish
Article number017
Pages (from-to)2216-2218
Number of pages3
JournalChinese Physics Letters
Volume24
Issue number8
DOIs
Publication statusPublished - 2007 Aug 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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