Solution of the Skyrme–HF+BCS equation on a 3D mesh, II: A new version of the Ev8 code

Abstract : We describe a new version of the Ev8 code that solves the nuclear Skyrme–Hartree–Fock+BCS problem using a 3-dimensional cartesian mesh. Several new features have been implemented with respect to the earlier version published in 2005. In particular, the numerical accuracy has been improved for a given mesh size by (i) implementing a new solver to determine the Coulomb potential for protons, and (ii) implementing a more precise method to calculate the derivatives on a mesh that had already been implemented earlier in our beyond-mean-field codes. The code has been made very flexible to enable the use of a large variety of Skyrme energy density functionals that have been introduced in the last years. Finally, the treatment of the constraints that can be introduced in the mean-field equations has been improved. The code Ev8 is today the tool of choice to study the variation of the energy of a nucleus from its ground state to very elongated or triaxial deformations with a well-controlled accuracy.
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Submitted on : Tuesday, April 26, 2016 - 4:55:24 PM
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W. Ryssens, V. Hellemans, M. Bender, P. Heenen. Solution of the Skyrme–HF+BCS equation on a 3D mesh, II: A new version of the Ev8 code . Computer Physics Communications, Elsevier, 2015, 187, pp.175-194. ⟨10.1016/j.cpc.2014.10.001⟩. ⟨in2p3-01285809⟩

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