α-α-Λ Model Calculation of ^9_ΛBe Hypernucleus by the Three-Body Faddeev Formalism
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概要
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^9_ΛBe hypernucleus was investigated by using the three-body Faddeev equation in the α-α-Λ model. We adopted a realistic α-α potential which was derived by a microscopic treatment based on the resonatfng-group method plus the orthogonal-condition model. Here, the Pauli blocking effects between two alphas are carefully taken into account. On the other hand, the α-Λ potential is given by a simple Gauss-type effective potential which was introduced by Tang and Herndon. The numerical calculation was done by the Amado-Lovelace-Mitra or the AGS type integral equation. We obtained 1/2^+, 3/2^+, 5/2^+, and three kinds of 3/2^-states. These energy spectra were in good agreement with low-lying energy spectra of ^9_ΛBe hypernucleus. Furthermore, three off-shell different α-Λ potentials were investigated to obtain 1/2^+, and 3/2^+ states.
- 素粒子論グループ 素粒子研究編集部の論文
- 1992-10-20
著者
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Oryu Shinsho
Department Of Physics Faculty Of Science And Technology Science University Of Tokyo
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Nakazawa Michiyuki
Department of Physics, Science University of Tokyo
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Nakazawa M
Department Of Physics Faculty Of Science And Technology Science University Of Tokyo
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Nakazawa Michiyuki
Department Of Physics Science University Of Tokyo
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