γ-ray spectroscopy in Λ hypernuclei

H. Tamura, S. Ajimura, H. Akikawa, D. E. Alburger, K. Aoki, A. Banu, R. E. Chrien, G. B. Franklin, J. Franz, Yu Fujii, Y. Fukao, T. Fukuda, O. Hashimoto, T. Hayakawa, E. Hiyama, H. Hotchi, K. Imai, W. Imoto, Y. Kakiguchi, M. KameokaT. Kishimoto, A. Krutenkova, T. Maruta, A. Matsumura, M. May, S. Minami, Y. Miura, K. Miwa, T. Miyoshi, K. Mizunuma, T. Nagae, S. N. Nakamura, K. Nakazawa, M. Niiyama, H. Nomura, H. Noumi, Y. Okayasu, S. Ota, T. Ohtaki, H. Outa, P. Pile, B. P. Quinn, A. Rusek, P. K. Saha, Y. Sato, T. Saitoh, M. Sekimoto, R. Sutter, H. Takahashi, T. Takahashi, L. Tang, K. Tanida, S. Terashima, M. Togawa, A. Toyoda, Mifuyu Ukai, H. Yamauchi, L. Yuan, S. H. Zhou

Research output: Contribution to journalArticle

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Abstract

The present status of hypernuclear γ-ray spectroscopy with Hyperball is summarized. We observed two γ transitions of Λ16O(1- → 1-, 0-) and obtained the strength of the ΛN tensor force. In 10B(K- π- γ) data, we did not observe the spin-flip M1 transition of Λ10B(2- → 1-), but γ rays from hyperfragments such as Λ7Li(7/2+ → 5/2+) and Λ9Be(3/2+ → 1/2+) were observed. In 11B(π+, K+ γ) data, we observed six γ transitions of Λ11B. We also attempted an inclusive γ-ray measurement with a stopped K- beam.

Original languageEnglish
Pages (from-to)58-69
Number of pages12
JournalNuclear Physics A
Volume754
Issue number1-4 SPEC. ISS.
DOIs
Publication statusPublished - 2005 May 30

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Tamura, H., Ajimura, S., Akikawa, H., Alburger, D. E., Aoki, K., Banu, A., Chrien, R. E., Franklin, G. B., Franz, J., Fujii, Y., Fukao, Y., Fukuda, T., Hashimoto, O., Hayakawa, T., Hiyama, E., Hotchi, H., Imai, K., Imoto, W., Kakiguchi, Y., ... Zhou, S. H. (2005). γ-ray spectroscopy in Λ hypernuclei. Nuclear Physics A, 754(1-4 SPEC. ISS.), 58-69. https://doi.org/10.1016/j.nuclphysa.2005.01.034