Title: Evolution of fission-fragment mass distributions in the neutron-deficient lead region
Authors: Ghys, Lars ×
Andreyev, A. N.
Huyse, Mark
Van Duppen, Piet
Sels, Simon
Andel, B.
Antalic, S.
Barzakh, A.
Capponi, L.
Cocolios, Thomas Elias
Derkx, X.
De Witte, Hilde
Elseviers, J.
Fedorov, D. V
Fedosseev, V. N.
Hessberger, F. P.
Kalaninova, Z.
Koster, U.
Lane, J. F. W.
Liberati, V.
Lynch, K. M.
Marsh, B. A.
Mitsuoka, S.
Moller, P.
Nagame, Y.
Nishio, K.
Ota, S.
Pauwels, D.
Page, R. D.
Popescu, L.
Radulov, D.
Rajabali, M. M.
Randrup, J.
Rapisarda, E.
Rothe, S.
Sandhu, K.
Seliverstov, M. D.
Sjodin, A. M.
Truesdale, V. L.
Van Beveren, CĂ©line
Van den Bergh, Paul
Wakabayashi, Y.
Warda, M. #
Issue Date: 15-Oct-2014
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear Physics vol:90 issue:4 pages:1-6
Article number: 041301(R)
Abstract: Low-energy β-delayed fission of 194,196At and 200,202Fr was studied in detail at the mass separator ISOLDE at
CERN. The fission-fragment mass distributions of daughter nuclei 194,196Po and 202Rn indicate a triple-humped
structure, marking the transition between asymmetric fission of 178,180Hg and symmetric fission in the light Ra-Rn
nuclei. Comparison with the macroscopic-microscopic finite-range liquid-drop model and the self-consistent
approach employing the Gogny D1S energy density functional yields discrepancies. This demonstrates once
more the need for dynamical fission calculations, because for both models the potential-energy surfaces lack
pronounced structures, in contrast to those for the actinide region.
ISSN: 0556-2813
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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