Gamma-ray spectroscopy of hypernuclei - present and future

H. Tamura, K. Hosomi, S. Bufalino, N. Chiga, P. Evtoukhovitch, A. Feliciello, R. Honda, T. Koike, Y. Ma, K. Miwa, A. Sasaki, Y. Sasaki, K. Shirotori, K. Tanida, Z. Tsamalaidze, M. Ukai, T. O. Yamamoto, S. B. Yang

研究成果: Article

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Recent results and future directions of the γ-ray spectroscopy of Λ hypernuclei are discussed. A further analysis of the last KEK experiment (E566) has revealed a new γ transition in 12ΛC at 6048keV (preliminary), which is ascribed to the M1(13-→11-) transition. At J-PARC, studies will be extended from p-shell to s-shell and sd-shell hypernuclei. In the first part of the J-PARC E13 experiment, we will measure the 4ΛHe(1 +0 +) transition to study charge-symmetry breaking in the ΛN interaction and investigate the 19ΛF hypernucleus to study ΛN spin-spin interaction further using one of the sd-shell hypernuclei. In the second part of E13, we will precisely measure the spin-flip B(M1) value for the 7ΛLi(3/2 + → 1/2 +) transition. Beyond E13, we plan to study impurity effects by observing possible changes in nuclear deformation caused by the presence of a Λ in sd-shell hypernuclei, as well as to investigate various heavier Λ hypernuclei in order to precisely determine the energies of Λ single-particle orbits.

元の言語English
ページ(範囲)99-108
ページ数10
ジャーナルNuclear Physics A
914
DOI
出版物ステータスPublished - 2013 9

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Tamura, H., Hosomi, K., Bufalino, S., Chiga, N., Evtoukhovitch, P., Feliciello, A., Honda, R., Koike, T., Ma, Y., Miwa, K., Sasaki, A., Sasaki, Y., Shirotori, K., Tanida, K., Tsamalaidze, Z., Ukai, M., Yamamoto, T. O., & Yang, S. B. (2013). Gamma-ray spectroscopy of hypernuclei - present and future. Nuclear Physics A, 914, 99-108. https://doi.org/10.1016/j.nuclphysa.2013.03.014