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Prog. Theor. Phys. Vol. 86 No. 1 (1991) pp. 131-149

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Soft Octupole Vibrations with K = 0 and K ≠0 Built on Superdeformed Rotational Bands and Static Pairing Correlations

Shoujirou Mizutori, Yoshifumi R. Shimizu* and Kenichi Matsuyanagi

Department of Physics, Kyoto University, Kyoto 606
*Department of Physics, Kyushu University, Fukuoka 812

(Received January 21, 1991)

Abstract:

Properties of low-lying octupole vibrations (with K = 0, 1, 2 and 3) built on superdeformed rotational bands are investigated by means of the RPA in a uniformly rotating frame. Large configuration space composed of 9 major shells is used. Numerical examples are presented for the superdeformed band in 192Hg as a typical case where appreciable amount of static pairing correlations remains at finite values of the rotational frequency. We obtain strongly collective low-frequency octupole vibrations with K = 0, 1 and 2. It is shown that the properties of the K = 1 octupole vibrations are especially sensitive to the static pairing correlations. The Coriolis-mixings among these soft octupole vibrations are shown to become important when the rotational frequency ωrot \gtrsim0.2 MeV/\hbar.


URL : http://ptp.ipap.jp/link?PTP/86/131/
DOI : 10.1143/PTP.86.131

[ Full Text PDF : FREE ACCESS (1160K) ] Citation:

References:

  1. D. Ye et al., Phys. Rev. C41 (1990), R13[APS].
  2. F. S. Stephen et al., Phys. Rev. Lett. 64 (1990), 2623[APS].
  3. P. J. Twin, Nucl. Phys. A520 (1990), 17c.
  4. P. J. Nolan and P. J. Twin, Ann. Rev. Nucl. Part. Sci. 38 (1988), 533.
  5. Slide Report of the Workshop and Symposia on “Nuclear Structure in the Era of New Spectroscopy”, Copenhagen, Sept. 11 ∼ Nov. 24, 1989.
  6. S. Mizutori, Y. R. Shimizu and K. Matsuyanagi, Prog. Theor. Phys. 83 (1990), 666[PTP].
  7. S. Mizutori, Y. R. Shimizu and K. Matsuyanagi, Proc. Symp. on “ Nuclear Collective Motion and Nuclear Reaction Dynamics”, Riken, Dec. 1989, ed. K.-I. Kubo, M. Ichimura, M. Ishihara and S. Yamaji (World Scientific, Singapore), p. 119.
  8. S. Mizutori, Y. R. Shimizu and K. Matsuyanagi, Prog. Theor. Phys. 85 (1991), 559[PTP].
  9. Y. R. Shimizu, Nucl. Phys. A520 (1990), 477c.
  10. Y. R. Shimizu and K. Matsuyanagi, Prog. Theor. Phys. 72 (1984), 1087[PTP]; ibid. 75 (1986), 1161[PTP].
  11. H. Sakamoto and T. Kishimoto, Nucl. Phys. A501 (1989), 205.
  12. T. Bengtsson and I. Ragnarsson, Nucl. Phys. A436 (1985), 14.
  13. M. Brack, J. Damgaard, A. S. Jensen, H. C. Pauli, V. M. Strutinsky and C. Y. Wong, Rev. Mod. Phys. 44 (1972), 320[APS].
  14. R. Bengtsson, Y.-S. Chen, J.-Y. Zhang and S. \rAbeg, Nucl. Phys. A405 (1983), 221.
  15. A. Bohr and B. R. Mottelson, Nuclear Structure (Benjamin, New York 1975), vol. 2.
  16. T. Nakatsukasa, S. Mizutori and K. Matsuyanagi, in preparation.
  17. S. \.Aberg, Nucl. Phys. A520 (1990), 35c.
  18. S. Mizutori, Doctor Thesis, Kyoto University, 1990 (unpublished).
  19. J. Dudek, The Variety of Nuclear Shapes, ed. J. D. Garrett et al. (World Scientific, Singapore, 1987), p. 195.
  20. D. M. Cullen et al., Phys. Rev. Lett. 65 (1990), 1547[APS].
  21. K. Zuber et al., Nucl. Phys. A520 (1990), 195c.
  22. J. Dudek, T. R. Werner and Z. Szymansky, Phys. Lett. B248 (1990), 235.

Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 87 No. 3 (1992) pp. 607-626 :
    Octupole Vibrations in the Harmonic-Oscillator-Potential Model with Axis Ratio Two to One
    Takashi Nakatsukasa, Shoujirou Mizutori and Kenichi Matsuyanagi
  2. Progress of Theoretical Physics Vol. 120 No. 6 (2008) pp. 1169-1192 :
    Triaxiality Dependence of Octupole Excitations on Superdeformed States in 44Ti
    Hiromichi Ogasawara, Kenichi Yoshida, Masayuki Yamagami, Shoujirou Mizutori and Kenichi Matsuyanagi
  3. Progress of Theoretical Physics Vol. 121 No. 2 (2009) pp. 357-374 :
    Rotational Frequency Dependence of Octupole Vibrations on Superdeformed States in 40Ca
    Hiromichi Ogasawara, Kenichi Yoshida, Masayuki Yamagami, Shoujirou Mizutori and Kenichi Matsuyanagi

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