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Phys. Rev. C 80, 014309 (2009) [6 pages]

Microscopic description of complex nuclear decay: Multimodal fission

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A. Staszczak1,2,3, A. Baran1,2,3, J. Dobaczewski4,5, and W. Nazarewicz2,3,4
1Institute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, PL-20-031 Lublin, Poland
2Department of Physics and Astronomy, University of Tennessee Knoxville, Tennessee 37996, USA
3Physics Division, Oak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, Tennessee 37831, USA
4Institute of Theoretical Physics, University of Warsaw, ul. Hoża 69, PL-00-681 Warsaw, Poland
5Department of Physics, P. O. Box 35 (YFL), FI-40014 University of Jyväskylä, Finland

Received 20 December 2008; published 9 July 2009

Our understanding of nuclear fission, a fundamental nuclear decay, is still incomplete due to the complexity of the process. In this paper, we describe a study of spontaneous fission using the symmetry-unrestricted nuclear density functional theory. Our results show that the observed bimodal fission can be explained in terms of pathways in multidimensional collective space corresponding to different geometries of fission products. We also predict a new phenomenon of trimodal spontaneous fission for some rutherfordium, seaborgium, and hassium isotopes.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.80.014309
DOI:
10.1103/PhysRevC.80.014309
PACS:
21.60.Jz, 24.75.+i, 27.90.+b
 
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