Meson exchange models meson exchange models non

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Meson-exchange models Meson-exchange models Non-linear models Non-linear models Models with explicit Models with explicit density dependence density dependence no nonlinear terms in the no nonlinear terms in the σ meson σ meson for for σ σ and and ω for for ρ sat x / NL3* NL3* DD-ME2, DD-ME DD-ME2, DD-ME
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Theoretical errors in the description of masses CEDF ∆r ch rms [fm] NL3* 0.0283 0.0283 DD-ME2 0.0230 0.0230 DD-ME 0.0329 0.0329 DD-PC1 0.0253 0.0253 Uncertainties in radii Agbemava, AA, D, Ray, P.Ring, PRC 89 , 054320 (2 014) cludes complete DD-PC1 mass table as supplement
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Reexamining the structure of superheavy nuclei in CDFT Detailed results in S. Agbemava et al, PRC 92 , 054310 (2015) Covariant density functional theory: Reexamining the structure of superheavy nuclei
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Results for PC-PK1 are very similar to the ones with NL3* Deformation effects on shell structure Very important – deformed results differ substantially from spherical on Unusual feature: oblate shapes above the spherical shell closures
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Open circles – experimentally observed nuclei DD-PC1: Experimental Z=116, 118 nuclei are oblate PC-PK1: Experimental Z=118 nucleus is spherical Other experimental SHE are prolate
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Potential energy surfaces in axially symmetric RHB calculations with separable pairing
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The source of oblate shapes – the low density of s-p states
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Confronting experimental data
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particle-vibration coupling particle-vibration coupling + TO, TE polarization effects + TO, TE polarization effects E. Litvinova, AA, PRC 84, 014305 (2011) NL3* functional
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Statistical distribution of deviations of the energies of one-quasiparticle states from experiment Two sources of deviations: 1.Low effective mass (stretching of the energy scale) 2.Wrong relative energies of the states Triaxial CRHB; fully self-consistent blocking, time-odd mean fields included, NL3*, Gogny D1S pairing, AA and S.Shawaqfeh, PLB 706 (2011) 177 The description of deformed states at DFT level is better than spherical ones by a factor 2-3 (and by a factor ~1 (neutron) and ~2 (proton) as compared with spherical PVC calculations) Similar problems in Skyrme and Gogny DFT
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ccuracy of the description of experimental data in Z>94 nucl With exception of the DD-ME , the deformed N=162 gap is well reproduced in all CEDF’s
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The Q -values
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