Spin constraints on nuclear energy density functionals

Robledo, L. M.; Bernard, R.; Bertsch, G. F.

doi:10.1103/physrevc.89.021303

Cited by 15 publications

(18 citation statements)

References 27 publications

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“…The original formulation of the densitydependent part of the interaction is preserved and therefore no additional time-odd density-dependent terms are added to it. This assumption has to be verified in the future as there are indications that such kind of terms could be required to recover basic properties of odd-odd systems [49].…”

Section: Gogny Energy Density Functionalsmentioning

confidence: 99%

Properties of nuclei in the nobelium region studied within the covariant, Skyrme, and Gogny energy density functionals

et al. 2015

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International audienceWe calculate properties of the ground and excited states of nuclei in the nobelium region for proton and neutron numbers of 92≤Z≤10492≤Z≤104 and 144≤N≤156144≤N≤156, respectively. We use three different energy-density-functional (EDF) approaches, based on covariant, Skyrme, and Gogny functionals, each with two different parameter sets. A comparative analysis of the results obtained for quasiparticle spectra, odd–even and two-particle mass staggering, and moments of inertia allows us to identify single-particle and shell effects that are characteristic to these different models and to illustrate possible systematic uncertainties related to using the EDF modelling

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Section: Gogny Energy Density Functionalsmentioning

confidence: 99%

Properties of nuclei in the nobelium region studied within the covariant, Skyrme, and Gogny energy density functionals

et al. 2015

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“…[27,28]. As can be expected, the density-dependent part can also play a very important role for more general correlations, such as particlevibration coupling, for the renormalization of the mean-field one-particle states, as well as in odd-odd nuclei [47].…”

Section: Introductionmentioning

confidence: 96%

Gogny force with a finite-range density dependence

et al. 2015

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In the present work, we have investigated an extension of the effective nucleon-nucleon Gogny interaction in which the zero-range density-dependent term has been replaced with a finite-range term. The parameters have been adjusted on both nuclear-matter properties and a few observables of stable nuclei. The traditional and unified fitting procedure of the Gogny force used in Bruyères-le-Châtel ensures common basic properties between the extended analytical form of the Gogny interaction, called D2, and the original one. In particular, symmetric infinite nuclear-matter and neutron-matter properties as well as pairing correlations have been investigated. A few static properties obtained in finite nuclei using the Hartree-Fock-Bogoliubov approach and the D2 parametrization of the Gogny interaction are analyzed and compared to the results obtained with D1-type parametrizations and experiment when it is possible. The D2 parametrization makes it possible to reproduce nuclear structure properties with improved accuracy.

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“…While systematic use of fusion calculations in fits of time-odd parts of Skyrme forces remains computationally prohibitive, the variation found here suggests that fusion dynamics may form part of the physics input to future constraints on those parts of effective interactions which are not probed by ground-state fits. This can be added to the increasing body of work indicating that the time-odd contributions to the nuclear meanfield are in need of constraining to observables [24][25][26].…”

Section: Discussionmentioning

confidence: 99%

Role of the Skyrme tensor force in heavy-ion fusion

Stevenson

Suckling

Fracasso

et al. 2015

EPJ Web of Conferences

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Abstract. We make use of the Skyrme effective nuclear interaction within the time-dependent Hartree-Fock framework to assess the effect of inclusion of the tensor terms of the Skyrme interaction on the fusion window of the 16 O-16 O reaction. We find that the lower fusion threshold, around the barrier, is quite insensitive to these details of the force, but the higher threshold, above which the nuclei pass through each other, changes by several MeV between different tensor parametrisations. The results suggest that eventually fusion properties may become part of the evaluation or fitting process for effective nuclear interactions.

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Spin constraints on nuclear energy density functionals

Abstract: The Gallagher-Moszkowski rule in the spectroscopy of odd-odd nuclei imposes a new spin constraint on the energy functionals for self-consistent mean field theory. The commonly used

Cited by 15 publications

References 27 publications

Properties of nuclei in the nobelium region studied within the covariant, Skyrme, and Gogny energy density functionals

Properties of nuclei in the nobelium region studied within the covariant, Skyrme, and Gogny energy density functionals

Gogny force with a finite-range density dependence

Role of the Skyrme tensor force in heavy-ion fusion

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