Title: Fission-barrier heights of neutron-deficient mercury nuclei
Authors: Veselsk´y, M. ×
Andreyev, A.N.
Antalic, S.
Huyse, Mark
M¨oller, P.
Nishio, K.
Sierk, A.J.
Van Duppen, Piet
Venhart, Martin #
Issue Date: 15-Aug-2012
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear Physics vol:86 issue:1
Article number: 024308
Abstract: The recently measured probabilities of the β-delayed fission for 178,180Tl are used to deduce the fission-barrier
heights of the daughter isotopes 178,180Hg, undergoing low-energy fission. Four alternative β-decay strength
functions and four variants of the statistical model of de-excitation of the daughter nucleus are used to determine
the fission-barrier height for 180Hg. Depending on the choice of the model, the deduced fission-barrier heights
appear to be between 10% and 40% smaller than theoretical estimates. This observation is verified also for fission-barrier heights extracted using the probability of β-delayed fission of 178Tl. The spread in extracted
fission-barrier heights results mainly from uncertainties in the magnitude of the pairing gap at the saddle configuration.
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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