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Article type: Cover
1990 Volume 81 Issue 2 Pages
Cover1-
Published: May 20, 1990
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Article type: Appendix
1990 Volume 81 Issue 2 Pages
App1-
Published: May 20, 1990
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Article type: Appendix
1990 Volume 81 Issue 2 Pages
B1-B2
Published: May 20, 1990
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B3-B9
Published: May 20, 1990
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B10-B15
Published: May 20, 1990
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T. YAMADA
Article type: Article
1990 Volume 81 Issue 2 Pages
B16-B27
Published: May 20, 1990
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Why the α-particle structure persists in the fp-shell nuclei in psite of the strong LS force is discussed together with the departure from J(J+1) rule in the ground-band spectrum of ^<44>Ti.
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B28-B31
Published: May 20, 1990
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T. YAMADA
Article type: Article
1990 Volume 81 Issue 2 Pages
B32-B37
Published: May 20, 1990
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The extremely low-lying positive-parity K=0^+ and 2^+ band in ^<44>Ti, which start from the band-head energy, Ex=1.90 and 2.88MeV, respectively, are shown to have the alpha-cluster structure with the excited ^<40>Ca core, namely, ^<36>Ar+α+α structure.
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Yosuke Tanaka
Article type: Article
1990 Volume 81 Issue 2 Pages
B38-B49
Published: May 20, 1990
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Using the shell model wave functions, we discuss properties of negative parity states of A=40 nuclei; ^<40>K, ^<40>Ca and ^<40>Sc. Within the 1hω shell model space, energy spectra, C3 form factors, E3 transitions and M1 moments were calculated and compared with experimental data available. We also calculated log ft values for positron decays from ^<40>Sc and spectroscopic factors in one-proton-transfer reactions. Many of the experimental data are well reproduced by the simple 1 particle-1 hole model. However, it is necessary to introduce 3 particle-3 hole states to reproduce some of the experimental facts; C3 form factors and E3 transition probabilities for the 2nd and 3rd 3^- states of ^<40>Ca.
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B50-B64
Published: May 20, 1990
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[in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B65-B66
Published: May 20, 1990
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Article type: Appendix
1990 Volume 81 Issue 2 Pages
B67-
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AKIO HOSOYA
Article type: Article
1990 Volume 81 Issue 2 Pages
B68-B82
Published: May 20, 1990
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Recently proposed theory of baby universes is reviwed. On the basis of the Hartle-Hawking Euclidean path integral we evaluate the topology changing amplitude diagrammatically in the wormhole dominance approximation. Coleman's claim of vanishing cosmological constant is critically examined. We argue that the big fix conjecture is not only fascinating possibility but also a necessary ingredient for the causality. From the analogy to string theories, we point out that the topology change of the universe may imply the third quantization, which potentially solves the longstanding difficulty in the probabilistic interpretation of the Wheeler-DeWitt equation.
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B83-B94
Published: May 20, 1990
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[in Japanese], [in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B95-B100
Published: May 20, 1990
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B101-B103
Published: May 20, 1990
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B104-B105
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B106-B108
Published: May 20, 1990
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[in Japanese], [in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B109-B110
Published: May 20, 1990
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[in Japanese], [in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B111-B113
Published: May 20, 1990
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B114-B117
Published: May 20, 1990
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
B118-B128
Published: May 20, 1990
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[in Japanese]
Article type: Article
1990 Volume 81 Issue 2 Pages
115-120
Published: May 20, 1990
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Article type: Appendix
1990 Volume 81 Issue 2 Pages
App2-
Published: May 20, 1990
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Article type: Appendix
1990 Volume 81 Issue 2 Pages
App3-
Published: May 20, 1990
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Article type: Cover
1990 Volume 81 Issue 2 Pages
Cover2-
Published: May 20, 1990
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Article type: Cover
1990 Volume 81 Issue 2 Pages
Cover3-
Published: May 20, 1990
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