Five-Dimensional Fission-Barrier Calculations from 70Se
to 252Cf
P. MÖLLER and A. J. SIERK
Theoretical Division, Los Alamos National Laboratory, New Mexico 87545, USA
A. IWAMOTO
Japan Atomic Energy Agency (JAEA),
Tokai-mura, Naka-gun, Ibaraki, 319-1195, Japan
This paper
was published in
Physical Review
Letters 92 072501 (2004)
It has been assigned Los Alamos National Laboratory Preprint No
LA-UR-03-5242.
Abstract:
We present fission-barrier-height calculations for
nuclei throughout the periodic table based on a realistic
macroscopic-microscopic model. Compared to other calculations (i) we
use a deformation space of a sufficiently high dimension, sampled
densely enough to describe the relevant topography of the fission
potential, (ii) we unambiguously find the physically relevant saddle
points in this space, and (iii) we formulate our model so that we
obtain continuity of the potential energy at the division point
between a single system and separated fission fragments or colliding
nuclei, allowing us to (iv) describe both fission-barrier heights and
ground-state masses throughout the periodic table.
DOI: 10.1103/PhysRevLett.92.072501
PACS numbers: 24.75.+i, 21.10.Dr,
25.70.Gh, 21.60.Cs
Figure 1
is
available as a .pdf file for download.
Figure 2
is
available as a .pdf file for download.
Figure 3
is
available as a .pdf file for download.
Peter Moller
Last modified: Tue Feb 21 14:10:43 MST 2012