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Prog. Theor. Phys. Vol. 76 No. 1 (1986) pp. 127-142

[ Full Text PDF : FREE ACCESS (899K) ]

Unitary-Model-Operator Approach to Nuclear Many-Body Problem. II

— Three-Body-Cluster Effects on Properties of 16O —

Kenji Suzuki and Ryoji Okamoto

Department of Physics, Kyushu Institute of Technology, Kitakyushu 804

(Received March 3, 1986)

Abstract:

The nuclear-many-body problem is studied in the framework of the unitary-model-operator approach. A unitary-transformed Hamiltonian is introduced and given in a cluster expansion form. A theory is formulated to evaluate the three-body-cluster terms. The diagrammatical structure of the three-body-cluster terms is clarified, and the relation between the G-matrix theory and the present approach is discussed. The theory is applied to the calculation of energies of the ground- and one-body states of 16O with the Reid soft-core potential. It is found that the three-body-cluster effects on the properties of 16O are rather small because of a strong cancellation mechanism among various three-body-cluster contributions. It is concluded that the three-body-cluster effects are at most about 2% of the potential energies of the two-body-cluster terms for both of the ground- and one-body states.


URL : http://ptp.ipap.jp/link?PTP/76/127/
DOI : 10.1143/PTP.76.127

[ Full Text PDF : FREE ACCESS (899K) ] Citation:

References:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 77 No. 2 (1987) pp. 196-200 :
    Effects of Self-Consistent Single-Particle Potential on Nuclear Effective Interaction
    Kenji Suzuki, Ryoji Okamoto and Hiroo Kumagai
  2. Progress of Theoretical Physics Vol. 79 No. 2 (1988) pp. 330-342 :
    Theory of Many-Fermion System on Unitary-Transformation Method
    Kenji Suzuki
  3. Progress of Theoretical Physics Vol. 104 No. 1 (2000) pp. 123-141 :
    Three-Body Cluster Effects on Λ Single-Particle Energies in Λ17O and Λ41Ca
    Shinichiro Fujii, Ryoji Okamoto and Kenji Suzuki

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