Nuclear energy density optimization: Large deformations

Kortelainen M, McDonnell J, Nazarewicz W, Reinhard PG, Sarich J, Schunck N, Stoitsov MV, Wild SM (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Physical Review C - Nuclear Physics American Physical Society

Book Volume: 85

Article Number: 024304

Journal Issue: 2

DOI: 10.1103/PhysRevC.85.024304

Abstract

A new Skyrme-like energy density suitable for studies of strongly elongated nuclei was determined in the framework of the Hartree-Fock-Bogoliubov theory using the recently developed model-based, derivative-free optimization algorithm pounders. A sensitivity analysis at the optimal solution has revealed the importance of states at large deformations in driving the parameterization of the functional. The good agreement with experimental data on masses and separation energies, achieved with the previous parameterization unedf0, is largely preserved. In addition, the new energy density unedf1 gives a much improved description of the fission barriers in 240Pu and neighboring nuclei. © 2012 American Physical Society.

Authors with CRIS profile

Paul-Gerhard Reinhard Naturwissenschaftliche Fakultät

Involved external institutions

University of Tennessee (UTK) US United States (USA) (US) Argonne National Laboratory US United States (USA) (US)

How to cite

APA:

Kortelainen, M., McDonnell, J., Nazarewicz, W., Reinhard, P.-G., Sarich, J., Schunck, N.,... Wild, S.M. (2012). Nuclear energy density optimization: Large deformations. Physical Review C - Nuclear Physics, 85(2). https://doi.org/10.1103/PhysRevC.85.024304

MLA:

Kortelainen, M., et al. "Nuclear energy density optimization: Large deformations." Physical Review C - Nuclear Physics 85.2 (2012).

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