Abstract
Fluctuation properties have been analysed for the energy levels predicted by IBFM calculations in the Ba isotopes121Ba to131Ba. The results indicate, in general, a situation which is close to the chaotic limit. For the lighter isotopes studied (121 and 123), a phase transition is obtained in the low-spin, positive parity states, from a situation close to regularity at low excitation energies, towards chaoticity at higher excitations.
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Bohigas, O., Giannoni, M.J., Schmit, C.: Phys. Rev. Lett.52, 1 (1984)
Alhassid, Y., Whelan, N.: Phys. Rev. C43, 2637 (1991)
Alhassid, Y., Whelan, N.: Phys. Rev. Lett.67, 816 (1991)
Alhassid, Y., Novoselsky, A., Whelan, N.: Phys. Rev. Lett.65, 2971 (1990)
Haq, R.V., Pandey, A., Bohigas, O.: Phys. Rev. Lett.48, 1086 (1982)
Abul-Magd, A.Y., Weidenmüller, H.A.: Phys. Lett. B162, 223 (1985)
Mitchell, G.E., Bilpuch, E.G., Endt, P.M., Shriner Jr., J.F.: Phys. Rev. Lett.61, 1473 (1988)
Shriner, J.F., Mitchell, G.E., von Egidy, T.: Z. Phys. A — Atomic Nuclei338, 309 (1991)
Paar, V., Vorkapic, D.: Phys. Lett. B205, 7 (1988)
Lopac, V., Brant, S., Paar, V.: Z. Phys. A — Atomic Nuclei337, 131 (1990)
Bucurescu, D., Cata-Danil, G., Zamfir, N.V., Gizon, A., Gizon, J.: Phys. Rev. C43, 2610 (1991)
Casten, R.F., von Brentano, P.: Phys. Lett. B152, 22 (1985)
Dyson, F.J., Mehta, M.L.: J. Math. Phys.4, 701 (1963)
Alhassid, Y., Feingold, M.: Phys. Rev. A39, 374 (1989)
Bohigas, O., Giannoni, M.J.: In: Lecture Notes in Physics. Vol. 209, Dehesa, S., Gomez, J.M.G., Polls, A. (eds.), p. 1. Berlin, Heidelberg, New York: Springer 1984
Weidenmüller, H.A.: Nucl. Phys. A520, 509c (1990)
Garrett, J.D., German, J.R., Courtney, L., Espino, J.M.: (to appear in: Proceedings of the Workshop on “Future Directions in Nuclear Physics with 4π Gamma Detection Systems of the New Generation“, Strasbourg 1991. Dudek, J., Haas, B. (eds.). New York: American Institute of Physics
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This work was supported in part by the exchange programme between IAP-Bucharest and IN2P3.