Elsevier

Nuclear Physics A

Volume 580, Issue 1, 7 November 1994, Pages 133-155
Nuclear Physics A

High-spin structure of 155Dy

https://doi.org/10.1016/0375-9474(94)90819-2Get rights and content

Abstract

High-spin states in 155Dy have been studied by γ-γ coincidence measurements via the 124Sn(36S, 5n)155Dy reaction at a beam energy of 155 MeV. Additional information has also been extracted from the reaction 156Gd(3He, 4n)155Dy at 39 MeV beam energy. Eight rotational bands have been populated and observed up to high spin (I⩽932). The band features have been analysed within the framework of the cranked-shell model. The i132 neutron alignments and the h112 proton alignments are discussed. B(M1)/B(E2) ratios have also been extracted for the strongly coupled bands to deduce further information on the detailed structure of these bands. The highest states (above spin 30) of two of the negative-parity bands gain energy rapidly with respect to a rigid rotor, which is consistent with properties expected for terminating bands.

References (30)

  • H.W. Cranmer-Gordon et al.

    Nucl. Phys.

    (1987)
    W.C. Ma et al.

    Phys. Rev. Lett.

    (1988)
  • D.C. Radford et al.

    Nucl. Phys. A

    (1992)
  • F.S. Stephens et al.

    Phys. Rev. Lett.

    (1985)
  • M.A. Riley et al.

    Nucl. Phys. A

    (1988)
    J.D. Morrison et al.

    Europhys. Lett.

    (1988)
  • M.A. Riley et al.
  • K. Krien et al.

    Nucl. Phys. A

    (1973)
    J.P. Torres et al.

    Nucl. Phys. A

    (1972)
    J. Borgreen et al.

    Nucl. Phys. A

    (1970)
  • J. Simpson et al.

    J. of Phys. G

    (1986)
  • R. Bengtsson et al.

    At. Data Nucl. Data Tables

    (1986)
  • J.C. Bacelar et al.

    Phys. Lett. B

    (1985)
  • J. Simpson et al.

    J. of Phys. G

    (1984)
  • M.A. Riley et al.

    Z. Phys. A

    (1993)
  • M.A. Riley et al.

    Phys. Rev. C

    (1989)
  • A.J. Larabee et al.

    Phys. Rev. C

    (1984)
  • Z. Xing et al.

    Phys. Lett. B

    (1986)
  • H. Emling et al.

    Phys. Lett. B

    (1989)
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    Present address: Admiral Computing Ltd, Camberly, Surrey, UK.

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