Using Gogny-HFB calculations, the authors show that collective inertias computed with the one-body part of the particle number fluctuation operator closely match those from the pairing gap operator, supporting the use of ΔN^2 as a fission collective coordinate.
Future of Nuclear Fission Theory
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abstract
There has been much recent interest in nuclear fission, due in part to a new appreciation of its relevance to astrophysics, stability of superheavy elements, and fundamental theory of neutrino interactions. At the same time, there have been important developments on a conceptual and computational level for the theory. The promising new theoretical avenues were the subject of a workshop held at the University of York in October 2019; this report summarises its findings and recommendations.
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Pairing in fission: Mean-field and collective inertias study
Using Gogny-HFB calculations, the authors show that collective inertias computed with the one-body part of the particle number fluctuation operator closely match those from the pairing gap operator, supporting the use of ΔN^2 as a fission collective coordinate.