NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of April 29, 2024.

Search: Author = F.Mercier

Found 8 matches.

Back to query form

2023ME04      Phys.Rev. C 107, 034309 (2023)

F.Mercier, J.-P.Ebran, E.Khan

Covariant energy density functionals with and without tensor couplings at the Hartree-Bogoliubov level

NUCLEAR STRUCTURE Z=4-98, N=4-150; calculated binding energy, rms radii, spin-orbit splitting, tensor energy per nucleon. ²⁰Ne, ¹²⁰Sn, ²³⁸U; calculated one-dimensional potential energy surface. ³⁴Si, ²⁰Ne; calculated total density, proton and neutron densities. Relativistic Hartree-Bogoliubov (RHB) approach with tensor terms in the vector-isoscalar channel. Free parameters of covariant functionals optimized by combining Markov-chain Monte Carlo and simplex algorithms. Comparison with experimental values.

doi: 10.1103/PhysRevC.107.034309
Citations: PlumX Metrics

2023ZH13      Phys.Rev. C 107, 034311 (2023)

J.Zhao, J.-P.Ebran, L.Heitz, E.Khan, F.Mercier, T.Niksic, D.Vretenar

Microscopic description of α, 2α, and cluster decays of ^216-220Rn and ^220-224Ra

RADIOACTIVITY ²¹²Po, ^216,218,220Rn, ^220,222,224Ra(α), (2α); ^222,224Ra(¹²C); calculated T_1/2, branching ratios. Relativistic Hartree-Bogoliubov model with the DD-PC1 functional and a separable pairing force. Comparison to experimental data.

NUCLEAR STRUCTURE ²¹²Po, ^216,218,220Rn, ^220,222,224Ra; calculated deformation-energy surfaces (quadrupole, octupole and hexadecupole).

doi: 10.1103/PhysRevC.107.034311
Citations: PlumX Metrics

2022KH10      Phys.Rev. C 106, 064330 (2022)

E.Khan, L.Heitz, F.Mercier, J.-P.Ebran

α-particle formation and clustering in nuclei

NUCLEAR STRUCTURE ⁴He, ⁸Be, ¹⁶O, ²⁰Ne; calculated microscopic densities, nucleonic localization function. Calculations utilizing calculated with the covariant DD-ME2 and Skyrme energy density functional. Quantified the criteria defining α-cluster in nuclei.

RADIOACTIVITY ²¹²Po(α); calculated density and nucleonic localization function during α-decay.

doi: 10.1103/PhysRevC.106.064330
Citations: PlumX Metrics

2022ME06      Phys.Rev. C 105, 034343 (2022)

F.Mercier, J.-P.Ebran, E.Khan

Low-energy monopole strength in spherical and axially deformed nuclei: Cluster and soft modes

NUCLEAR STRUCTURE ^{40,42,44,46,48,50,52,54,56,58,60,62}Ca, ^{46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86}Ni, ^{24,26,28,30,32,34,36}Mg; calculated isoscalar monopole strength distribution, single-particle spectrum, transition densities, soft mode and cluster exciations contribution to the total strength. ²⁰Ne; calculated ground-state density, localization function, transition densities. Studied the evolution of monopole strength with pairing energy, deformation, neutron excess. Covariant QRPA calculations, formulated within the finite amplitude method, on top of constrained relativistic Hartree-Bogoliubov (RHB) reference states.

doi: 10.1103/PhysRevC.105.034343
Citations: PlumX Metrics

2022YU07      Phys.Rev. C 106, 054309 (2022)

E.Yuksel, F.Mercier, J.-P.Ebran, E.Khan

Clustering in nuclei at finite temperature

NUCLEAR STRUCTURE ^20,32Ne; calculated deformation parameter, pairing gap, entropy, total intrinsic density and excitation energy as a function of temperature, proton, neutron and α localization densities, proton and nuetron isoscalar and isovector densities. Finite temperature relativistic Hartree-Bogoliubov (FT-RHB) method with the relativistic density-dependent meson-nucleon coupling functional DD-ME2.

doi: 10.1103/PhysRevC.106.054309
Citations: PlumX Metrics

2021ME03      Phys.Rev. C 103, 024303 (2021)

F.Mercier, A.Bjelcic, T.Niksic, J.-P.Ebran, E.Khan, D.Vretenar

Low-energy cluster modes in N=Z nuclei

NUCLEAR STRUCTURE ²⁰Ne; calculated self-consistent equilibrium density contour, monopole strength function, QFAM response to strength functions for the isoscalar monopole (Kπ=0+ and 0-), isoscalar dipole (Kπ=1+ and 1-), isoscalar quadrupole (Kπ=2+ and 2-) and isoscalar octupole (Kπ=3-) operators, centroids of the monopole strength function, density and localization function contours induced by monopole and octupole perturbations, neutron 2-qp contributions to the isoscalar monopole excitation as function of β₂. ²⁴Mg, ²⁸Si, ³²S; calculated low-energy isoscalar monopole strength distributions, QFAM response, neutron 2-qp contributions to the low-energy monopole modes. Finite amplitude method (FAM) based on the microscopic framework of relativistic nuclear energy density functionals with DD-PC1 parametrization for α-conjugate or α-cluster nuclei.

doi: 10.1103/PhysRevC.103.024303
Citations: PlumX Metrics

2021ME16      Phys.Rev.Lett. 127, 012501 (2021)

F.Mercier, J.Zhao, J.-P.Ebran, E.Khan, T.Niksic, D.Vretenar

Microscopic Description of 2α Decay in ²¹²Po and ²²⁴Ra Isotopes

RADIOACTIVITY ²¹²Po, ²²⁴Ra(2α), (α); calculated axially symmetric deformation energy surfaces as functions of quadrupole, octupole, and hexadecapole collective coordinates. Self-consistent framework based on energy density functionals.

doi: 10.1103/PhysRevLett.127.012501
Citations: PlumX Metrics

2020ME08      Phys.Rev. C 102, 011301 (2020)

F.Mercier, J.Zhao, R.D.Lasseri, J.-P.Ebran, E.Khan, T.Niksic, D.Vretenar

Microscopic description of the self-conjugate ¹⁰⁸Xe and ¹⁰⁴Te α-decay chain

RADIOACTIVITY ¹⁰⁸Xe, ¹⁰⁴Te(α); calculated deformation energy surfaces in (β₂₀, β₃₀) and (β₂₀, β₄₀) planes, total nucleon density of the fragments around scission for α emission, T_1/2 using self-consistent microscopic energy density functional framework with relativistic density functional DD-PC1 Comparison with experimental half-lives.

doi: 10.1103/PhysRevC.102.011301
Citations: PlumX Metrics