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Nuclear shape isomers

Moeller, P.; Sierk, A. J.; Bengtsson, Ragnar LU ; Sagawa, H. and Ichikawa, T. (2012) In Atomic Data and Nuclear Data Tables 98(2). p.149-300
Abstract
We calculate potential-energy surfaces as functions of spheroidal (epsilon(2)), hexadecapole (epsilon(4)), and axial-asymmetry (gamma) shape coordinates for 7206 nuclei from A = 31 to A = 290. We tabulate the deformations and energies of all minima deeper than 0.2 MeV and of the saddles between all pairs of minima. The tabulation is terminated at N = 160. Our study is based on the FRLDM macroscopic-microscopic model defined in ATOMIC DATA AND NUCLEAR DATA TABLES [P. Moller, J.R. Nix, W.D. Myers, W.J. Swiatecki, At. Data Nucl. Data Tables 59 (1995) 185]. We also present potential-energy contour plots versus epsilon(2) and gamma for 1224 even-even nuclei in the region studied. We can identify nuclei for which a necessary condition for shape... (More)
We calculate potential-energy surfaces as functions of spheroidal (epsilon(2)), hexadecapole (epsilon(4)), and axial-asymmetry (gamma) shape coordinates for 7206 nuclei from A = 31 to A = 290. We tabulate the deformations and energies of all minima deeper than 0.2 MeV and of the saddles between all pairs of minima. The tabulation is terminated at N = 160. Our study is based on the FRLDM macroscopic-microscopic model defined in ATOMIC DATA AND NUCLEAR DATA TABLES [P. Moller, J.R. Nix, W.D. Myers, W.J. Swiatecki, At. Data Nucl. Data Tables 59 (1995) 185]. We also present potential-energy contour plots versus epsilon(2) and gamma for 1224 even-even nuclei in the region studied. We can identify nuclei for which a necessary condition for shape isomers occurs, namely multiple minima in the calculated potential-energy surface. We find that the vast majority of nuclear shape isomers occur in the A = 80 region, the A = 100 region, and in a more extended region centered around Pb-208. A calculated region of shape isomers that has so far not been extensively explored is the region of neutron-deficient actinides "north-east" of (208)pb. (C) 2011 Elsevier Inc. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Atomic Data and Nuclear Data Tables
volume
98
issue
2
pages
149 - 300
publisher
Elsevier
external identifiers
  • wos:000300970200004
  • scopus:84856976589
ISSN
0092-640X
DOI
10.1016/j.adt.2010.09.002
language
English
LU publication?
yes
id
7a4eec73-6057-4ac8-84b3-d70e94f66818 (old id 2379105)
date added to LUP
2012-03-27 14:11:18
date last changed
2017-10-22 04:14:04
@article{7a4eec73-6057-4ac8-84b3-d70e94f66818,
  abstract     = {We calculate potential-energy surfaces as functions of spheroidal (epsilon(2)), hexadecapole (epsilon(4)), and axial-asymmetry (gamma) shape coordinates for 7206 nuclei from A = 31 to A = 290. We tabulate the deformations and energies of all minima deeper than 0.2 MeV and of the saddles between all pairs of minima. The tabulation is terminated at N = 160. Our study is based on the FRLDM macroscopic-microscopic model defined in ATOMIC DATA AND NUCLEAR DATA TABLES [P. Moller, J.R. Nix, W.D. Myers, W.J. Swiatecki, At. Data Nucl. Data Tables 59 (1995) 185]. We also present potential-energy contour plots versus epsilon(2) and gamma for 1224 even-even nuclei in the region studied. We can identify nuclei for which a necessary condition for shape isomers occurs, namely multiple minima in the calculated potential-energy surface. We find that the vast majority of nuclear shape isomers occur in the A = 80 region, the A = 100 region, and in a more extended region centered around Pb-208. A calculated region of shape isomers that has so far not been extensively explored is the region of neutron-deficient actinides "north-east" of (208)pb. (C) 2011 Elsevier Inc. All rights reserved.},
  author       = {Moeller, P. and Sierk, A. J. and Bengtsson, Ragnar and Sagawa, H. and Ichikawa, T.},
  issn         = {0092-640X},
  language     = {eng},
  number       = {2},
  pages        = {149--300},
  publisher    = {Elsevier},
  series       = {Atomic Data and Nuclear Data Tables},
  title        = {Nuclear shape isomers},
  url          = {http://dx.doi.org/10.1016/j.adt.2010.09.002},
  volume       = {98},
  year         = {2012},
}