Observation of superdeformation in Hg191

Phys. Rev. Lett. 63, 360 – Published 24 July 1989
E. F. Moore, R. V. F. Janssens, R. R. Chasman, I. Ahmad, T. L. Khoo, F. L. H. Wolfs, D. Ye, K. B. Beard, U. Garg, M. W. Drigert, Ph. Benet, Z. W. Grabowski, and J. A. Cizewski

Abstract

The first observation of superdeformation in the mass region A≃190 is reported. A rotational band of twelve transitions with an average energy spacing of 37 keV, an average moment of inertia scrF(2) of 110 ħ2 MeV-1, and an average quadrupole moment of 18±3 e b has been observed in Hg191; this band persists at low rotational frequency. These results are in excellent agreement with a calculation that predicts an ellipsoidal axis ratio of 1.65:1 for the superdeformed shape in this nucleus.

DOI: http://dx.doi.org/10.1103/PhysRevLett.63.360

  • Received 8 March 1989
  • Published in the issue dated 24 July 1989

© 1989 The American Physical Society

Authors & Affiliations

E. F. Moore, R. V. F. Janssens, R. R. Chasman, I. Ahmad, T. L. Khoo, and F. L. H. Wolfs

  • Argonne National Laboratory, Argonne, Illinois 60439

D. Ye, K. B. Beard, and U. Garg

  • University of Notre Dame, Notre Dame, Indiana 46556

M. W. Drigert

  • Idaho National Engineering Laboratory, EG&G Idaho Inc., Idaho Falls, Idaho 83415

Ph. Benet and Z. W. Grabowski

  • Purdue University, West Lafayette, Indiana 47907

J. A. Cizewski

  • Rutgers University, New Brunswick, New Jersey 08903

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