NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = A.Ravlic Found 8 matches. 2024RA05 Phys.Rev. C 109, 014318 (2024) A.Ravlic, E.Yuksel, T.Niksic, N.Paar Global properties of nuclei at finite-temperature within the covariant energy density functional theory
doi: 10.1103/PhysRevC.109.014318
2023RA22 Phys.Rev. C 108, 054305 (2023) A.Ravlic, E.Yuksel, T.Niksic, N.Paar Influence of the symmetry energy on the nuclear binding energies and the neutron drip line position
doi: 10.1103/PhysRevC.108.054305
2022GI06 Phys.Rev. C 105, 055801 (2022) S.Giraud, R.G.T.Zegers, B.A.Brown, J.-M.Gabler, J.Lesniak, J.Rebenstock, E.M.Ney, J.Engel, A.Ravlic, N.Paar Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations RADIOACTIVITY 86Kr(EC); calculated Gamow-Teller strength distribution, EC-rates for various energies of initial states, average shell occupation. N=44-54(EC); Z=26-36(EC); calculated EC-rates. Finite-temperature proton-neutron relativistic QRPA (FT-PNRQRPA), finite-temperature QRPA (FT-QRPA) and shell-model calculations. Obtained finite-temperature electron-capture rates applied in one-dimensional core-collapse simulations.
doi: 10.1103/PhysRevC.105.055801
2022OI01 Phys.Rev. C 105, 064309 (2022) Symmetry breaking of Gamow-Teller and magnetic-dipole transitions and its restoration in calcium isotopes NUCLEAR STRUCTURE 42,44,46,48Ca, 42Ti, 208Pb; calculated isovector M1 and GT strength distributions. Relativistic energy-density functional (REDF) with point-coupling interactions, using the relativistic quasiparticle randomphase approximation (RQRPA).
doi: 10.1103/PhysRevC.105.064309
2022PO04 Phys.Rev. C 105, 064315 (2022) Two-neutrino double-β decay matrix elements based on a relativistic nuclear energy density functional RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 136Xe, 128,130Te, 150Nd(2β-); 124Xe(2EC), (2β+); calculated nuclear matrix elements (NMEs) and running sum of the Gamow-Teller NMEs for 2νββ decay modes, dependence of the NMEs for 2νββ decay on the isoscalar pairing strengths. Relativistic Hartree-Bardeen-Cooper-Schrieffer (RH-BCS) theory with density-dependent meson-exchange (DD-ME2) and point-coupling interactions (DD-PC1, DD-PCX), and pairing correlations. Comparison with available experimental data.
doi: 10.1103/PhysRevC.105.064315
2021RA26 Phys.Rev. C 104, 054318 (2021) A.Ravlic, E.Yuksel, Y.F.Niu, N.Paar Evolution of β-decay half-lives in stellar environments RADIOACTIVITY 52,54,56,58,60Ti, 62,64,66,68,70Fe, 120,122,124,126,128Cd, 130,132,134,136,138Sn(β-); Z=8-82, N=12-184; calculated β-decay half-lives of even-even nuclei as a function of temperature and density, Gamow-Teller strength as a function of temperature. Relativistic nuclear energy density functional framework with D3C* parametrization, and finite-temperature proton-neutron relativistic quasiparticle random-phase approximation (FT-PNRQRPA). Relevance to initial stages of the r-process or other astrophysical processes such as rp-process, dense thermonuclear explosions, and supernovae simulations.
doi: 10.1103/PhysRevC.104.054318
2021RA30 Phys.Rev. C 104, 064302 (2021) A.Ravlic, Y.F.Niu, T.Niksic, N.Paar, P.Ring Finite-temperature linear response theory based on relativistic Hartree Bogoliubov model with point-coupling interaction NUCLEAR STRUCTURE 120Cd; calculated strength functions of 1- and 1+ excitations in β- direction; GT- strength B(GT-) of the 1+ state at 13.54 MeV, GT- strength function with respect to the number of oscillator shells, convergence properties of the GT- strength. 112,116,120,124,128Sn; calculated neutron critical temperature and mean pairing gap at zero temperature. 112,114,116,118,120,122Sn; calculated Jπ=0+ strength functions with respect to the excitation energy of the parent nuclei for temperatures T=0, 0.5, 0.9, and 1.5 MeV. 116,120,124,128,132Sn; calculated Gamow-Teller (Jπ=1+) strength functions with respect to the excitation energy of the parent nuclei for temperatures T=0, 0.5, 0.9, and 1.5 MeV. 112Sn; calculated single-particle energy levels in canonical basis for neutrons and protons at T=0 and 0.9 MeV. 112,120,128Sn; calculated spin-dipole excitation strength at temperature T=0, 0.5, 0.9, and 1.5 MeV, spin-dipole centroid energies of 0-, 1-, and 2- multipoles at temperature T=0 and 1.5 MeV. Finite-temperature linear response theory based on finite-temperature relativistic Hartree-Bogoliubov (FT-RHB) model for calculation of IAR, GTR, and spin-dipole resonance (SDR) in tin isotopes at finite-temperatures, with point-coupling relativistic energy-density functionals (EDFs): DD-PC1 and DDPCX for the calculation of mean-field potential in the ground state and the residual ph interaction in finite temperature quasiparticle random-phase approximation (FT-QRPA) approach, based on Bardeen-Cooper-Schrieffer (BCS) basis. Comparison with available experimental data.
doi: 10.1103/PhysRevC.104.064302
2020RA29 Phys.Rev. C 102, 065804 (2020) A.Ravlic, E.Yuksel, Y.F.Niu, G.Colo, E.Khan, N.Paar Stellar electron-capture rates based on finite-temperature relativistic quasiparticle random-phase approximation NUCLEAR REACTIONS 44Ti, 56Fe(e-, ν), E<30 MeV; calculated electron capture cross sections in stellar environment for the 0+, 0-, 1+, 1-, 2+ and 2- multipoles, B(GT+) transition strength distributions; concluded that for the complete description of electron capture, both pairing and temperature effects must be considered. Nuclear ground-state properties calculated using finite-temperature Hartree BCS theory (FT-HBCS), and nuclear excitations in the charge exchange channel using finite-temperature proton-neutron relativistic QRPA (FT-PNRQRPA), with relativistic energy density functional (DD-ME2) in both cases.
doi: 10.1103/PhysRevC.102.065804
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