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NSR database version of April 27, 2024.

Search: Author = M.Verriere

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2023SC05      Phys.Rev. C 107, 044312 (2023)

N.Schunck, M.Verriere, G.Potel Aguilar, R.C.Malone, J.A.Silano, A.P.D.Ramirez, A.P.Tonchev

Microscopic calculation of fission product yields for odd-mass nuclei

NUCLEAR REACTIONS ^236,238U(n, F), E=2.2-7.2 MeV; calculated mass distribution of the light fission fragment before prompt emission, fission fragment mass distribution after neutron emission, ratio of neutron over proton numbers in the fission fragments, axial quadrupole and octupole deformation in the fission fragments, probability to populate a given spin projection. Hartree-Fock-Bogoliubov theory with Skyrme energy functionals combined with FREYA calculations. Comparison to available experimental data, GEF-2021/1.1 calculations and ENDF/B-VIII.0, JEFF-3.3, and JENDL-5 evaluations.

NUCLEAR STRUCTURE ^237,239U; calculated levels, J, π, spectrum of quasi-bound states for each spin projection, potential energy curves in as a function of the axial quadrupole moment. Generator coordinate method with Gaussian overlap approximation.

doi: 10.1103/PhysRevC.107.044312
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2021VE03      Phys.Rev. C 103, 034617 (2021)

M.Verriere, M.R.Mumpower

Improvements to the macroscopic-microscopic approach of nuclear fission

NUCLEAR REACTIONS ^233,235U(n, F), E=thermal; calculated fission fragment charge yields, isobaric fragment charge yields and the independent charge yields after prompt neutron emission, fragment mass and charge yields before prompt neutron emission, scission probabilities. Semiclassical method based on the macroscopic finite-range liquid-drop model (FRLDM) with microscopic corrections or enhanced finite-range liquid-drop model (eFRLDM), with Lipkin-Nogami equations. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034617
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2021VE05      Phys.Rev. C 103, 054602 (2021)

M.Verriere, N.Schunck, D.Regnier

Microscopic calculation of fission product yields with particle-number projection

NUCLEAR REACTIONS ²³⁵U, ²³⁹Pu(n, F), E=0.5-10 MeV; calculated mass and charge distributions of fission fragments, odd-even staggering in the charge yields of fission fragments, two-dimensional isotopic fission yields as functions of charge and atomic mass, average neutron excess of fragments, isotopic yields. ²³⁶U, ²⁴⁰Pu; calculated potential energy surfaces (PES) in (Q₂₀, Q₃₀) planes as a function of the axial quadrupole and axial octupole moments using SkM* density functional. Microscopic collective model calculations of fission fragment distributions within the time-dependent generator coordinate method (TDGCM) under the Gaussian overlap approximation (GOA) framework, with the number of particles in fission fragments extracted from direct particle-number projection method. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.054602
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2020BE28      J.Phys.(London) G47, 113002 (2020)

M.Bender, R.Bernard, G.Bertsch, S.Chiba, J.Dobaczewski, N.Dubray, S.A.Giuliani, K.Hagino, D.Lacroix, Z.Li, P.Magierski, J.Maruhn, W.Nazarewicz, J.Pei, S.Peru, N.Pillet, J.Randrup, D.Regnier, P.G.Reinhard, L.M.Robledo, W.Ryssens, J.Sadhukhan, G.Scamps, N.Schunck, C.Simenel, J.Skalski, I.Stetcu, P.Stevenson, S.Umar, M.Verriere, D.Vretenar, M.Warda, S.Aberg

Future of nuclear fission theory

doi: 10.1088/1361-6471/abab4f
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2020MU06      Phys.Rev. C 101, 054607 (2020)

M.R.Mumpower, P.Jaffke, M.Verriere, J.Randrup

Primary fission fragment mass yields across the chart of nuclides

NUCLEAR REACTIONS ²²⁶Th, ²³⁵U, ²⁵⁹Md, ²⁷⁶No(n, F)²²⁷Th/²³⁶U/²⁶⁰Md/²⁷⁷No, T=0.5-1.5 MeV; ²²⁹Th, ²³⁷Np, ²³⁹Pu, ²⁴⁵Cm, ^255,257Fm(n, F)²³⁰Th/²³⁸Np/²⁴⁰Pu/²⁴⁶Cm/²⁵⁶Fm/²⁵⁸Fm, E^*=5.8-6.8 MeV; ²⁰⁵At, ²⁰⁸Rn, ²⁰⁹Fr, ²¹¹Ra, ²¹⁶Ac, ²²²Th, ²³⁰Pa, ²³³U(n, F)²⁰⁶At/²⁰⁹Rn/²¹⁰Fr/²¹²Ra/²¹⁷Ac/²²³Th/²³¹Pa/²³⁴U, E^*=11 MeV; calculated mass yield distributions. ²³⁶U, ²⁴⁰Pu, ²³⁴Cm; calculated projected potential energy surfaces. Z=80-130, A=171-330: calculated mass yield distributions for 3800 nuclei listed as tabular text files in the supplementary material. Finite-Range Liquid-Drop Model (FRLDM). Comparison with experimental data.

doi: 10.1103/PhysRevC.101.054607
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2019VE06      Phys.Rev. C 100, 024612 (2019)

M.Verriere, N.Schunck, T.Kawano

Number of particles in fission fragments

RADIOACTIVITY ²⁴⁰Pu(SF); calculated mass, neutron and charge fragmentation probabilities for several scission configurations in ²⁴⁰Pu using a macroscopic-microscopic approach or full Hartree-Fock-Bogoliubov calculations. Discussed two methods to estimate particle-number dispersion in fission fragments, Monte Carlo sampling of single-particle configurations, and extended standard projection techniques.

doi: 10.1103/PhysRevC.100.024612
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2016RE10      Phys.Rev. C 93, 054611 (2016)

D.Regnier, N.Dubray, N.Schunck, M.Verriere

Fission fragment charge and mass distributions in ²³⁹Pu (n, f) in the adiabatic nuclear energy density functional theory

NUCLEAR REACTIONS ²³⁹Pu(n, F), E=low; calculated pre-neutron emission charge and mass distributions of the fission fragments. Potential energy surfaces. Nuclear energy density functional (EDF) method, with the time-dependent generator coordinate method (TDGCM) and Gaussian overlap approximation (GOA). Comparison with available experimental data.

doi: 10.1103/PhysRevC.93.054611
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