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Sammarruca, Francesca; Stephenson, E.J.

doi:10.1103/physrevc.64.034006

Cited by 46 publications

(81 citation statements)

References 24 publications

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“…Table I reflects the noted above similarities of the results for κ and S(T ) at T = 0 MeV in the cases when Eqs. (19) and (23) are used. However, the results obtained for κ using the density-dependence from Eq.…”

Section: B Comparison With Results From Alternative Parametrizationsmentioning

confidence: 99%

“…One can add also interesting phenomena including the supernova explosions, properties of neutron stars and rare isotopes, frequencies and strain amplitudes of gravitational waves from both isolated pulsars and collisions involving neutron stars that depend strongly on the EOS of neutron-rich nuclear matter. Here we would like to mention a broad range of works devoted to the study of Tdependence of single-particle properties of nuclear as well as neutron matter (e.g., [4,[12][13][14][15][16][17][18][19]), and of ρ-dependence of NSE (e.g., [20][21][22][23][24]). Among the important studies of the T -dependence of hot finite nuclear systems we will note Ref.…”

Section: Introductionmentioning

confidence: 99%

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Temperature dependence of the volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

et al. 2018

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The temperature dependence of the volume and surface components of the nuclear symmetry energy (NSE) and their ratio is investigated in the framework of the local density approximation (LDA). The results of these quantities for finite nuclei are obtained within the coherent density fluctuation model (CDFM). The CDFM weight function is obtained using the temperature-dependent proton and neutron densities calculated through the HFBTHO code that solves the nuclear Skyrme-Hartree-Fock-Bogoliubov problem by using the cylindrical transformed deformed harmonic-oscillator basis. We present and discuss the values of the volume and surface contributions to the NSE and their ratio obtained for the Ni, Sn, and Pb isotopic chains around double-magic 78 Ni, 132 Sn, and 208 Pb nuclei. The results for the T -dependence of the considered quantities are compared with estimations made previously for zero temperature showing the behavior of the NSE components and their ratio, as well as with the available experimental data. The sensitivity of the results on various forms of the density dependence of the symmetry energy is studied. We confirm the existence of "kinks" of these quantities as functions of the mass number at T = 0 MeV for the double closed-shell nuclei 78 Ni and 132 Sn and the lack of "kinks" for the Pb isotopes, as well as the disappearance of these kinks as the temperature increases.

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Section: B Comparison With Results From Alternative Parametrizationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature dependence of the volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

et al. 2018

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“…[31,32] for details). Further, the connection of isospin asymmetry to the symmetry energy has an impact on many physical studies such as astrophysical observations [33][34][35][36][37][38], the ground state structure of exotic nuclei [39][40][41][42], the determination of the neutron skin [43,44], the dynamics of heavy-ion reactions [45][46][47], giant collective excitations [48,49], the dipole polarizability [50][51][52][53], the mirror charge radii [54,55], the properties of compact star object [20,37,38,56], the nucleosynthesis process through neutrino convection [25,57], the photospheric radius of a neutron star [25], the core collapse of compact massive stars and related explosive phenomena at high density [20,58].…”

Section: Introductionmentioning

confidence: 99%

Surface properties of neutron-rich exotic nuclei within relativistic mean field formalisms

et al. 2018

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In this theoretical study, we establish a correlation between the neutron skin thickness and the nuclear symmetry energy for the even−even isotopes of Fe, Ni, Zn, Ge, Se and Kr within the framework of the axially deformed self-consistent relativistic mean field for the non-linear NL3 * and density-dependent DD-ME1 interactions. The coherent density functional method is used to formulate the symmetry energy, the neutron pressure and the curvature of finite nuclei as a function of the nuclear radius. We have performed broad studies for the mass dependence on the symmetry energy in terms of the neutron-proton asymmetry for mass 70 ≤ A ≤ 96. From this analysis, we found a notable signature of a shell closure at N = 50 in the isotopic chains of Fe, Ni, Zn, Ge, Se and Kr nuclei. The present study reveals a interrelationship between the characteristics of infinite nuclear matter and the neutron skin thickness of finite nuclei.

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“…Theoretically, the in-medium N N cross section can be calculated by using different methods, e.g., the Dirac-Brueckner approach with the Bonn potential [10], the Dirac-Brueckner-Hartree-Fock approach with realistic nucleon-nucleon potential [11], the relativistic Brueckner-Hartree-Fock model [12][13][14], the T-matrix approach [15,16], and the relativistic BUU (RBUU) microscopic trans-port theory with the effective Lagrangian [17,18]. Alternatively, the detailed information of the in-medium N N cross section can be deduced from the comparison of observables of HICs with corresponding transport model simulations.…”

Section: Introductionmentioning

confidence: 99%

Effects of the in-medium nucleon-nucleon cross section on collective flow and nuclear stopping in heavy-ion collisions in the Fermi-energy domain

Wang

et al. 2018

Phys. Rev. C

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With the newly updated version of the ultrarelativistic quantum molecular dynamics (UrQMD) model, a systematic investigation of the effects of in-medium nucleon-nucleon (N N ) elastic cross section on the collective flow and the stopping observables in 197 Au + 197 Au collisions at beam energies from 40 to 150 MeV/nucleon is performed. Simulations with the medium correction factor F = σ in-medium NN /σ free NN = 0.2, 0.3, 0.5, and the one obtained with the FU3FP1 parametrization which depends on both the density and the momentum are compared to the FOPI and INDRA experimental data. It is found that, to best fit the experimental data of the slope of the directed flow and the elliptic flow at mid-rapidity as well as the nuclear stopping, the correction factor F=0.2 and 0.5 are required for reactions at beam energies of 40 and 150 MeV/nucleon, respectively. While calculations with the FU3FP1 parametrization can simultaneously reproduce these experimental data reasonably well. And, the observed increasing nuclear stopping with increasing beam energy in experimental data can also be reproduced by using the FU3FP1 parametrization, while the calculated stopping power in Au+Au collisions with beam energies from 40 to 150 MeV/nucleon almost keeps constant when take F equal to a fixed value.

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Δisobars and(p,p′)reactions

Cited by 46 publications

References 24 publications

Temperature dependence of the volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

Temperature dependence of the volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

Surface properties of neutron-rich exotic nuclei within relativistic mean field formalisms

Effects of the in-medium nucleon-nucleon cross section on collective flow and nuclear stopping in heavy-ion collisions in the Fermi-energy domain

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