Nuclear symmetry energy components and their ratio: A new approach within the coherent density fluctuation model

Gaidarov, M. K.; Guerra, E. Moya de; Antonov, A. N.; Danchev, I.; Sarriguren, P.; Kadrev, D. N.

doi:10.1103/physrevc.104.044312

Cited by 13 publications

(17 citation statements)

References 47 publications

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“…and ρ = ρ n + ρ p is the baryon density with ρ n and ρ p denoting the neutron and proton densities, respectively (see, e.g., [57,63,64]).…”

Section: The Key Eos Parameters In Nuclear Mattermentioning

confidence: 99%

“…The CDFM was suggested and developed in Refs. [30][31][32][33][34][35][36][37] (see also our recent papers [50,54,57]). In it the one-body density matrix (OBDM) of the nucleus ρ(r, r )…”

Section: The Eos Parameters Of Finite Nuclei In the Coherent Density ...mentioning

confidence: 99%

“…In Ref. [57] we proposed a new alternative approach to calculate the ratio of the surface to volume components of the NSE in the framework of the CDFM. We have demonstrated that the new scheme provides more realistic values, in a better agreement with the empirical data, and exhibits correct conceptual advantages.…”

Section: Introductionmentioning

confidence: 99%

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Isoscalar Giant Monopole Resonance in Spherical Nuclei as a Nuclear Matter Incompressibility Indicator

et al. 2023

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The incompressibility of both nuclear matter and finite nuclei is estimated by the monopole compression modes in nuclei in the framework of a nonrelativistic Hartree–Fock–Bogoliyubov method and the coherent density fluctuation model. The monopole states originate from vibrations of the nuclear density. The calculations in the model for the incompressibility in finite nuclei are based on the Brueckner energy–density functional for nuclear matter. Results for the energies of the breathing vibrational states and finite nuclei incompressibilities are obtained for various nuclei and their values are compared with recent experimental data. The evolution of the isoscalar giant monopole resonance (ISGMR) along Ni, Sn, and Pb isotopic chains is discussed. This approach can be applied to analyses of neutron stars properties, such as incompressibility, symmetry energy, slope parameter, and other astrophysical quantities, as well as for modelling dynamical behaviors within stellar environments.

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“…and ρ = ρ n + ρ p is the baryon density with ρ n and ρ p denoting the neutron and proton densities, respectively (see, e.g., [57,63,64]).…”

Section: The Key Eos Parameters In Nuclear Mattermentioning

confidence: 99%

“…The CDFM was suggested and developed in Refs. [30][31][32][33][34][35][36][37] (see also our recent papers [50,54,57]). In it the one-body density matrix (OBDM) of the nucleus ρ(r, r )…”

Section: The Eos Parameters Of Finite Nuclei In the Coherent Density ...mentioning

confidence: 99%

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Isoscalar Giant Monopole Resonance in Spherical Nuclei as a Nuclear Matter Incompressibility Indicator

et al. 2023

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“…[48]. A new approach was recently employed by Gaidarov et al to calculate the S V and S S which entails the use of the non-relativistic densities within the weight function [49].…”

Section: The Coherent Density Fluctuations Modelmentioning

confidence: 99%

Isotopic Shift in Hg-Isotopes within Brückner versus Relativistic Energy Density Functional

et al. 2022

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The present study is focused on revealing a characteristic kink of the neutron shell closure N = 126 across the Hg-isotopic chain within the relativistic mean-field (RMF) approach with the IOPB-I, DD-ME2, DD-PC1 and NL3 parameter sets. The RMF densities are converted to their spherical equivalence via the Wood–Saxon approximation and used as input within the parametrization procedure of the coherent density fluctuation model (CDFM). The nuclear matter symmetry energy is calculated using the Brückner energy density functional, and its surface, as well as volume components, are evaluated within Danielwicz’s liquid drop prescription. In addition, a comparison between Brückner and relativistic energy density functionals using the NL3 parameter set is shown as a representative case. The binding energy, charge distribution radius and symmetry energy are used as indicators of the isotopic shift in both ground and isomeric states. We have found the presence of a kink at the shell/sub-shell closure at N = 126 for neutron-rich 206Hg. The formation of the kink is traceable to the early filling of the 1i11/2 orbitals rather than 2g9/2, due to the large spin-orbit splitting. As such, the link between the occupational probability and the magicity of nuclei over the Hg-isotopic chain is established.

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“…(Antonov et al 2018). An alternative method has been reported by Gaidarov et al to obtain the volume, and surface symmetry energy components (Gaidarov et al 2021).…”

Section: Coherent Density Fluctuation Modelmentioning

confidence: 99%

Systematic study for the surface properties of neutron star

Kumar,

Das,

Pattnaik

et al. 2021

Preprint

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A detailed study of the structural properties of neutron star (NS) is performed within the coherent density fluctuation model using the recently developed G3 and widely used NL3 and IU-FSU parameter sets in the relativistic mean-field formalism. The masses, moment of inertia, and density profiles of the NS at various mass limits are studied. The incompressibility 𝐾 𝑠𝑡 𝑎𝑟 , symmetry energy 𝑆 𝑠𝑡 𝑎𝑟 , slope parameter 𝐿 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 and curvature coefficient 𝐾 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 of the NS at various masses are analyzed. The surface properties (𝐾 𝑠𝑡 𝑎𝑟 , 𝑆 𝑠𝑡 𝑎𝑟 , 𝐿 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 and 𝐾 𝑠𝑡 𝑎𝑟 𝑠𝑦𝑚 ) are found to be model dependent, NL3 is the stiffest equation of state gives the higher magnitude of surface quantities as compared to the G3 and IU-FSU forces.

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Nuclear symmetry energy components and their ratio: A new approach within the coherent density fluctuation model

Cited by 13 publications

References 47 publications

Isoscalar Giant Monopole Resonance in Spherical Nuclei as a Nuclear Matter Incompressibility Indicator

Isoscalar Giant Monopole Resonance in Spherical Nuclei as a Nuclear Matter Incompressibility Indicator

Isotopic Shift in Hg-Isotopes within Brückner versus Relativistic Energy Density Functional

Systematic study for the surface properties of neutron star

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