Finite nuclei in a relativistic mean-field model with derivative couplings

The effects of auxiliary contribution in forms of electromagnetic tensors and relativistic electromagnetic exchange in local density approximation as well as δ meson and isovector density-dependent nonlinear terms in standard relativistic mean field model constrained by nuclear matter stability criteria in some selected finite nuclei and nuclear matter properties are studied. It is found that in the case of finite nuclei, the electromagnetic tensors play the most dominant part compared to other auxiliary terms. Due to the presence of electromagnetic tensors, the binding energies prediction of the model can be improved quite significantly. However, these terms do not yield demanded effects for rms radii prediction. In the case of nuclear matter properties, the isovector density-dependent nonlinear term plays the most crucial role in providing predictions which are quite compatible with experimental constraints. We have also shown these auxiliary contributions are indeed unable to improve the single particle spectrum results of the model.

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CONSTRAINING THE DENSITY DEPENDENCE OF THE SYMMETRY ENERGY WITH NUCLEAR STRUCTURE PROPERTIES

International Journal of Modern Physics E ◽

10.1142/s0218301310016144 ◽

2010 ◽

Vol 19 (08n09) ◽

pp. 1720-1726

Author(s):

WEI-ZHOU JIANG

Keyword(s):

Nuclear Matter ◽

Density Dependence ◽

Symmetry Energy ◽

Field Model ◽

Mean Field ◽

Mean Field Model ◽

Relativistic Mean Field ◽

Finite Nuclei ◽

The Relationship ◽

Structure Properties

In this work, we review a few structural properties in finite nuclei and nuclear matter that are sensitive to differences in the symmetry energy, and discuss mechanisms that can enhance the sensitivity to differences in the symmetry energy with the relativistic mean-field model. Emphasis has been placed on the establishment of the relationship between the deexcitation energy of superdeformed secondary minima and the density dependence of the symmetry energy.

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Applications of the relativistic mean-field model to finite nuclei.

HNPS Proceedings ◽

10.12681/hnps.2786 ◽

2020 ◽

Vol 9 ◽

pp. 256

Author(s):

G. A. Lalazissis

Keyword(s):

Body Problem ◽

Field Model ◽

Mean Field Theory ◽

Mean Field ◽

Many Body ◽

Mean Field Model ◽

Consistent System ◽

Relativistic Mean Field ◽

Self Consistent ◽

Finite Nuclei

The relativistic mean-field theory (RMF) provides a framework in which the nuclear many-body problem is described as a self-consistent system of nucléons and mesons. We review recent applications of the RMF theory to the structure of finite nuclei.

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Optimization of relativistic mean field model for finite nuclei to neutron star matter

Nuclear Physics A ◽

10.1016/j.nuclphysa.2012.03.004 ◽

2012 ◽

Vol 882 ◽

pp. 1-20 ◽

Cited By ~ 36

Author(s):

B.K. Agrawal ◽

A. Sulaksono ◽

P.-G. Reinhard

Keyword(s):

Neutron Star ◽

Field Model ◽

Mean Field ◽

Neutron Star Matter ◽

Mean Field Model ◽

Relativistic Mean Field ◽

Finite Nuclei

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EVOLUTION OF SHELL STRUCTURE IN NUCLEI

International Journal of Modern Physics E ◽

10.1142/s0218301311019581 ◽

2011 ◽

Vol 20 (08) ◽

pp. 1663-1675 ◽

Cited By ~ 4

Author(s):

A. BHAGWAT ◽

Y. K. GAMBHIR

Keyword(s):

Shell Structure ◽

Crucial Role ◽

Field Model ◽

Mean Field ◽

Mass Region ◽

The Other ◽

Mean Field Model ◽

Relativistic Mean Field ◽

Shell Closures ◽

Low Mass

Systematic investigations of the pairing and two-neutron separation energies which play a crucial role in the evolution of shell structure in nuclei, are carried out within the framework of relativistic mean-field model. The shell closures are found to be robust, as expected, up to the lead region. New shell closures appear in low mass region. In the superheavy region, on the other hand, it is found that the shell closures are not as robust, and they depend on the particular combinations of neutron and proton numbers. Effect of deformation on the shell structure is found to be marginal.

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