Multiconfiguration Resonating-Group Study of the 10-Nucleon System
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概要
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The 10-nucleon system is studied with a multiconfiguration and multichannel resonating-group method, in which the model space employed is spanned by α+^6Li, d+^8Be, d+^8Be* and α+^6Li* cluster configurations. The results show that the calculated T=0 level spectrum in the low-excitation region agrees fairly well with the level spectrum determined experimentally. In particular, the calculation yields a second L^π=0^+ state which corresponds to the experimental T=0, J^π=1^+ state having an excitation energy of 4.46 MeV above the lowest J^π=1^+ state. This state is difficult to explain by shell-model considerations, but occurs naturally in our calculation because the α-clustering property of ^<10>B is properly treated. Calculated differential cross sections for α+^6Li scattering at 27 MeV and ^6Li(α, d)^8Be reaction at 12 MeV are found to explain reasonably the general features of the measured angular distributions. The calculated magnitudes are, however, somewhat too large, which may be correlated with the fact that our calculated α+^6Li total reaction cross section seems to be only around 70 % of the empirically determined value. This latter finding leads us to believe that, although the present model space is large enough to yield reliable information on many of the important properties of the 10-nucleon system, it is still desirable to further expand the model space by adding the ^5He+^5Li cluster configuration into the formulation or by reformulating the 10-nucleon system as a 4-cluster α+α+n+p system.
- 理論物理学刊行会の論文
- 1995-02-25
著者
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FUJIWARA Yoshikazu
Department of Physics, Kyoto University
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FUJIWARA Yoshihisa
Research Institute for Theoretical Physics, Hiroshima University
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Tang Y
School Of Physics University Of Minnesota
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Tang Y.c.
School Of Physics University Of Minneapolis
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Tang Y.
School Of Physics University Of Minnesota
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Fujiwara Yoshikazu
Department Of Physics Kyoto University
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Fujiwara Yoshikazu
Department Of Clinical Gene Therapy Osaka University Graduate School Of Medicine
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FUJIWARA Yoshikazu
School of Physics, University of Minnesota
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FUJIWARA Yoshikazu
Research Institute for Fandamental Physics, Kyoto University
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TANG Y.C.
School of Physics, University of Minnesota
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FUJIWARA Yoshihisa
Department of Physics, Tokyo Institute of Technology
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FUJIWARA Yoshikazu
Institute of Theoretical Physics, University of Regensburg : Department of Physics, Kyoto University
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FUJIWARA Yoshikazu
Research institute for Fundamental Phyisics, Kyoto Universtiy,Fellow of the Japan Society for the Promotion of Science
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