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Journal articles
Evolution of fission-fragment mass distributions in the neutron-deficient lead region
L. Ghys
A. N. Andreyev
M. Huyse
P. van Duppen
S. Sels
B. Andel
S. Antalic
A. Barzakh
L. Capponi
T. E. Cocolios
X. Derkx
H. de Witte
J. Elseviers
D. V. Fedorov
V. N. Fedosseev
F. P. Hessberger
Z. Kalaninová
U. Köster
1
J. F. W. Lane
V. Liberati
K. M. Lynch
B. A. Marsh
S. Mitsuoka
P. Möller
Y. Nagame
K. Nishio
S. Ota
D. Pauwels
R. D. Page
L. Popescu
D. Radulov
M. M. Rajabali
J. Randrup
E. Rapisarda
S. Rothe
K. Sandhu
M. D. Seliverstov
A. M. Sjödin
V. L. Truesdale
C. van Beveren
P. van den Bergh
Y. Wakabayashi
M. Warda
1
ILL - Institut Laue-Langevin (6, rue Jules Horowitz BP 156 38042 Grenoble Cedex 9 - France)
- ILL (France)
Abstract : Low-energy β-delayed fission of At194,196 and Fr200,202 was studied in detail at the mass separator ISOLDE at CERN. The fission-fragment mass distributions of daughter nuclei Po194,196 and Rn202 indicate a triple-humped structure, marking the transition between asymmetric fission of Hg178,180 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.
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http://hal.in2p3.fr/in2p3-01089644
Contributor : Sandrine Guesnon <>
Submitted on : Tuesday, December 2, 2014 - 9:41:01 AM
Last modification on : Friday, October 9, 2015 - 1:05:01 AM
Contributor : Sandrine Guesnon <>
Submitted on : Tuesday, December 2, 2014 - 9:41:01 AM
Last modification on : Friday, October 9, 2015 - 1:05:01 AM
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- HAL Id : in2p3-01089644, version 1
- DOI : 10.1103/PhysRevC.90.041301
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L. Ghys, A. N. Andreyev, M. Huyse, P. van Duppen, S. Sels, et al.. Evolution of fission-fragment mass distributions in the neutron-deficient lead region. Physical Review C, American Physical Society, 2014, 90, pp.041301. ⟨10.1103/PhysRevC.90.041301⟩. ⟨in2p3-01089644⟩
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