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arXiv · 1210.1147

Further microscopic studies of the fission barriers of heavy nuclei

T. V. Nhan Hao·J. Le Bloas·Meng-Hock Koh·L. Bonneau·P. Quentin
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Abstract

Two systematic sources of error in most current microscopic evaluations of fission-barrier heights are studied. They are concerned with an approximate treatment of the Coulomb exchange terms (known as the Slater approximation) in the self-consistent mean fields and the projection on good parity states (e.g., of positive parity for the spontaneous fission of an even-even nucleus) of left-right reflection asymmetric intrinsic solutions (e.g., around the second barrier). Approximate or unprojected solutions are shown to lead each to an underestimation of the barrier heights by a few hundred keV.

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T. V. Nhan Hao, J. Le Bloas, Meng-Hock Koh, L. Bonneau, P. Quentin. 2012-10-03. Further microscopic studies of the fission barriers of heavy nuclei. https://doi.org/10.1142/s0218301312500516

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