Nuclear ground state properties in a relativistic point coupling model

Nikolaus, B. A.; Hoch, Thomas; Madland, D.G.

doi:10.1103/physrevc.46.1757

Cited by 236 publications

(280 citation statements)

References 16 publications

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“…An explicit density dependence for the meson-nucleon vertices is used. The DD-PC1 parameterization belongs to the class of the RMF models in which the finite-range meson exchange is replaced by zero-range interactions with density dependent coupling constants and derivative terms [59,61,62] .…”

Section: Results For the Parameter Sets Dd-me2 And Dd-pc1mentioning

confidence: 99%

Fission barriers in actinides in covariant density functional theory: The role of triaxiality

2010

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Relativistic mean field theory allowing for triaxial deformations is applied for a systematic study of fission barriers in the actinide region. Different pairing schemes are studied in details and it is shown that covariant density functional theory is able to describe fission barriers on a level of accuracy comparable with non-relativistic calculations, even with the best phenomenological macroscopic+microscopic approaches. Triaxiality in the region of the first saddle plays a crucial role in achieving that.

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Section: Results For the Parameter Sets Dd-me2 And Dd-pc1mentioning

confidence: 99%

Fission barriers in actinides in covariant density functional theory: The role of triaxiality

2010

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“…The covariant density functional theory is constructed with either the finite-range meson-exchange interation or the contact interaction in the point-coupling representation between nucleons [29,31,34,63,74,75]. For the former, the nucleus is described as a system of Dirac nucleons that interact with each other via the exchange of mesons (e.g., scalar meson σ, vector meson ω, and isovector meson ρ).…”

Section: Theoretical Frameworkmentioning

confidence: 99%

The limits of the nuclear landscape explored by the relativistic continuum Hartree–Bogoliubov theory

Xia

Lim

Zhao

et al. 2018

Atomic Data and Nuclear Data Tables

195

127

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The ground-state properties of nuclei with 8 Z 120 from the proton drip line to the neutron drip line have been investigated using the spherical relativistic continuum Hartree-Bogoliubov (RCHB) theory with the relativistic density functional PC-PK1. With the effects of the continuum included, there are totally 9035 nuclei predicted to be bound, which largely extends the existing nuclear landscapes predicted with other methods. The calculated binding energies, separation energies, neutron and proton Fermi surfaces, root-mean-square (rms) radii of neutron, proton, matter, and charge distributions, ground-state spins and parities are tabulated. The extension of the nuclear landscape obtained with RCHB is discussed in detail, in particular for the neutron-rich side, in comparison with the relativistic mean field calculations without pairing correlations and also other predicted landscapes. It is found that the coupling between the bound states and the continuum due to the pairing correlations plays an essential role in extending the nuclear landscape.The systematics of the separation energies, radii, densities, potentials and pairing energies of the RCHB calculations are also discussed. In addition, the α-decay energies and proton emitters based on the RCHB calculations are investigated.

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“…[8], squares are for point-coupling models from Refs. [32] and [10], and triangles are for QMC and ZM models from Refs. [24] and [33].…”

Section: Spin-orbit Force and M * Without Tensor Couplingmentioning

confidence: 99%

The nuclear spin-orbit force in chiral effective field theories

1998

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A compelling feature of relativistic mean-field phenomenology has been the reproduction of spin-orbit splittings in finite nuclei after fitting only to equilibrium properties of infinite nuclear matter. This successful result occurs when the velocity dependence of the equivalent central potential that leads to saturation arises primarily because of a reduced nucleon effective mass. The spin-orbit interaction is then also specified when one works in a fourcomponent Dirac framework. Here the nature of the spin-orbit force in more general chiral effective field theories of nuclei is examined, with an emphasis on the role of the tensor coupling of the isoscalar vector meson (ω) to the nucleon.

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Nuclear ground state properties in a relativistic point coupling model

Cited by 236 publications

References 16 publications

Fission barriers in actinides in covariant density functional theory: The role of triaxiality

Fission barriers in actinides in covariant density functional theory: The role of triaxiality

The limits of the nuclear landscape explored by the relativistic continuum Hartree–Bogoliubov theory

The nuclear spin-orbit force in chiral effective field theories

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