Triaxial nuclei calculated with the extended Thomas-Fermi plus Strutinsky integral (ETFSI) method

A. K. Dutta, J. M. Pearson, and F. Tondeur
Phys. Rev. C 61, 054303 – Published 7 April 2000
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Abstract

We have generalized the extended Thomas-Fermi plus Strutinsky integral (ETFSI) method to include a possible triaxiality of the nuclear shape, and investigated the effect on both ground states and fission barriers. In all the 36 cases that we have studied the effect of the triaxiality on the ground-state binding energy never exceeds 0.7 MeV, which is smaller than the rms error of the ETFSI-1 mass fit. As for the 15 fission barriers that we have studied, the average lowering arising from triaxiality is 0.6 MeV, while the maximal effect is 1.3 MeV, which is smaller than the maximal disagreement between the ETFSI-1 barriers and experiment.

  • Received 26 April 1999

DOI:https://doi.org/10.1103/PhysRevC.61.054303

©2000 American Physical Society

Authors & Affiliations

A. K. Dutta1,2, J. M. Pearson1, and F. Tondeur3,4

  • 1Département de Physique, Université de Montréal, Montréal (Québec), Canada H3C 3J7
  • 2School of Physics, Devi Ahilya University, Indore 452001, India
  • 3Institut d’Astronomie et d’Astrophysique, CP-226, Université Libre de Bruxelles, Campus de la Plaine, Boulevard du Triomphe, B-1050 Brussels, Belgium
  • 4Institut Supérieur Industriel de Bruxelles, Brussels, Belgium

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Vol. 61, Iss. 5 — May 2000

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