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Prog. Theor. Phys. Vol. 57 No. 3 (1977) pp. 866-881

[ Full Text PDF : FREE ACCESS (1422K) ]

The Structure of 9Be Nucleus by a Molecular Model. I

Shigetō Okabe, Yasuhisa Abe* and Hajime Tanaka

Department of Physics, Hokkaido University, Sapporo 060
*Research Institute for Fundamental Physics, Kyoto University, Kyoto 606

(Received October 15, 1976)

Abstract:

The nucleus 9Be is investigated by an extended molecular-orbital model and by the generator coordinate method in the simple LCAO approximation. The Hartree-Fock calculations show that α-cluster structures are stable in intrinsic states and the degree of clustering depends crucially on motions of the valence neutron. The generator coordinate calculations give good descriptions of the energy level structures of normal and non-normal parity states in terms of rotational bands. Energy spectra of 9B are given as well. A Kπ=1/2- band is also predicted. The ground state properties, that is, r.m.s.-radius, Q-moment and µ-moment are reproduced as quite well as electric transitions and charge form factors for the members of the ground rotational band. It is concluded that the molecular model admirably succeeds in systematic explanation of the low energy properties of 9Be. Comparisons are made with the simple shell model and the projected Hartree-Fock calculation by Bouten et al.


URL : http://ptp.ipap.jp/link?PTP/57/866/
DOI : 10.1143/PTP.57.866

[ Full Text PDF : FREE ACCESS (1422K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 59 No. 1 (1978) pp. 315-317 :
    Particle Decay Widths and Charge Form Factors of 9Be by the Molecular Model
    Shigetō Okabe and Yasuhisa Abe
  2. Progress of Theoretical Physics Vol. 61 No. 4 (1979) pp. 1049-1064 :
    The Structure of 9Be by a Molecular Model. II
    Shigetō Okabe and Yasuhisa Abe
  3. Progress of Theoretical Physics Vol. 65 No. 1 (1981) pp. 204-223 :
    Nuclear Binding Mechanism and Structure of Neutron-Rich Be and B Isotopes by Molecular-Orbital Model
    Michio Seya, Michio Kohno and Sinobu Nagata
  4. Progress of Theoretical Physics Vol. 70 No. 1 (1983) pp. 189-221 :
    Light p-Shell Λ-Hypernuclei by the Microscopic Three-Cluster Model
    Toshio Motoba, Hiroharu Bandō and Kiyomi Ikeda
  5. Progress of Theoretical Physics Vol. 120 No. 5 (2008) pp. 917-935 :
    Cluster States in 13B
    Yoshiko Kanada-En'yo, Yusuke Kawanami, Yasutaka Taniguchi and Masaaki Kimura
  6. Progress of Theoretical Physics Supplement No.68 (1980) pp. 1-28 :
    Chapter I. Introduction to Comprehensive Nuclear Structure Study Based on Cluster Correlations and Molecular Viewpoint
    Kiyomi Ikeda, Hisashi Horiuchi and Sakae Saito
  7. Progress of Theoretical Physics Supplement No.68 (1980) pp. 193-302 :
    Chapter III. Study of Non-Alpha-Nuclei Based on the Viewpoint of Cluster Correlations
    Hiroshi Furutani, Hiroyuki Kanada, Tsuneo Kaneko, Sinobu Nagata, Hidetoshi Nishioka, Shigeto Okabe, Sakae Saito, Toshimi Sakuda and Michio Seya
  8. Progress of Theoretical Physics Supplement No.81 (1985) pp. 42-103 :
    Chapter III. Production, Structure an Decay of Light p-Shell Λ-Hypernuclei
    Toshio Motoba, Hiroharu Bandō, Kiyomi Ikeda and Taiichi Yamada
  9. Progress of Theoretical Physics Supplement No.142 (2001) pp. 97-156 :
    Microscopic Multicluster Description of Light Exotic Nuclei with Stochastic Variational Method on Correlated Gaussians
    Koji Arai, Yoko Ogawa, Yasuyuki Suzuki and Kálmán Varga
  10. Progress of Theoretical Physics Supplement No.142 (2001) pp. 297-323 :
    Molecular-Orbital Structure in Light Neutron-Rich Nuclei
    Naoyuki Itagaki, Shigeto Okabe and Kiyomi Ikeda
  11. Progress of Theoretical Physics Supplement No.192 (2012) pp. 1-238 :
    Recent Developments in Nuclear Cluster Physics
    Hisashi Horiuchi, Kiyomi Ikeda and Kiyoshi Katō

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