Large Deformation Data in DFT Fits
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Transcript of Large Deformation Data in DFT Fits
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
Large Deformation Data in DFT FitsLarge Deformation Data in DFT Fits
Leptodermous expansion: LDM Energy from microscopic effective interactions
Observation: some parameters of the expansion (assym) are very poorly constrained
Force SkM* SkP SkI3 SkI4 SLy4
assym -52 MeV -45 MeV -75 MeV -34 MeV -54 MeV
N. Nikolov, N. Schunck, W. Nazarewicz, M. Bender
Proposal: Include data on well-deformed nuclei like position of bandheads of super-deformed bands or fission isomers in the fit of the functional
Isospin and mass dependence imply larger uncertainties in neutron-rich nuclei
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
Leptodermous expansion show stability of deformed neutron-rich nuclei caused by (poorly constrained) surface-symmetry energy
Benchmarking of excitation energy of super-deformed states and fission isomers with microscopic interactions show fluctuations larger than theoretical and experimental uncertainties
N. Nikolov, N. Schunck, W. Nazarewicz, M. Bender
[1] P.-G. Reinhard et al, Phys. Rev. C73, 014309 (2006)
[2] M. Bender et al, In preparation