The Λ hypernuclear spectroscopy with the SKS spectrometer at KEK 12 GeV PS

S. Ajimura, K. Aoki, H. Bhang, Y. Gavrilov, T. Hasegawa, O. Hashimoto, S. Homma, T. Kishimoto, K. Maeda, T. Miyachi, T. Nagae, H. Noumi, A. Ohkusu, H. Park, R. Redwine, M. Sekimoto, R. Sawafta, H. Sakaguchi, T. Shibata, T. TakahashiM. Youn

研究成果: Article査読

36 被引用数 (Scopus)

抄録

A spectroscopic study of Λ hypernuclei by the (π+, K+) reaction has been performed for the wide hypernuclear mass range using a new superconducting kaon spectrometer (INS-SKS) at the KEK 12 GeV PS. A Λ12C spectrum with 2 MeV (FWHM) energy resolution was measured and core excited states of Λ12C were clearly identified for the first time. It is discussed that the excitation energies and cross sections of these states will be closely related with the choice of ΛN interaction models as well as hypernuclear structure. Hypernuclear spectra of Λ10B, Λ28Si, Λ89Y, Λ139La and Λ208Pb were also obtained and binding energies of a Λ hyperon were deduced for each Λ orbital. The mass number dependence of the Λ binding energies is, within the present experimental errors, consistent with a calculation based on the Woods-Saxon potential.

本文言語English
ページ(範囲)173-182
ページ数10
ジャーナルNuclear Physics, Section A
585
1-2
DOI
出版ステータスPublished - 1995 3 13

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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