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Search: Author = N.Pillet

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2023PA30      Phys.Lett. B 845, 138148 (2023)

G.Pasqualato, A.Gottardo, D.Mengoni, A.Goasduff, J.J.Valiente-Dobon, F.Nowacki, S.Peru, N.Pillet, G.de Angelis, S.D.Bakes, T.Bayram, D.Bazzacco, G.Benzoni, D.Brugnara, M.Cicerchia, P.Colovic, M.L.Cortes, A.Gadea, F.Galtarossa, M.Gorska, A.Gozzelino, E.Gregor, N.Hubbard, A.Illana, M.Jurado, S.M.Lenzi, G.Mantovani, T.Marchi, R.Menegazzo, A.Montaner-Piza, D.R.Napoli, F.Recchia, M.Siciliano, D.Testov, S.Szilner, I.Zanon

An alternative viewpoint on the nuclear structure towards 100Sn: Lifetime measurements in 105Sn

NUCLEAR REACTIONS 58Ni(50Cr, X)105Sn, E=180 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, lifetimes, B(E2), B(M1). Comparison with QRPA and LSSM calculations. Recoil Distance Doppler Shift technique, the XTU-Tandem accelerator, the INFN Legnaro National Laboratories (Italy).

doi: 10.1016/j.physletb.2023.138148
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2021RO10      Phys.Rev. C 103, 034325 (2021)

C.Robin, M.J.Savage, N.Pillet

Entanglement rearrangement in self-consistent nuclear structure calculations

NUCLEAR STRUCTURE 4,6He; calculated ground-state energy, single-orbital entanglement entropy, neutron-neutron and proton-neutron mutual information (MI) of the harmonic oscillator (HO), Hartree-Fock (HF), natural (NAT) and variational natural (VNAT) bases single-neutron states. Investigated measures of entanglement, entanglement entropy, mutual information, and negativity in 4,6He in a selection of bases and a chiral interaction.

doi: 10.1103/PhysRevC.103.034325
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2020BE09      Phys.Rev. C 101, 044615 (2020)

R.N.Bernard, N.Pillet, L.M.Robledo, M.Anguiano

Description of the asymmetric to symmetric fission transition in the neutron-deficient thorium isotopes: Role of the tensor force

RADIOACTIVITY 216,222,226,230Th, 236U, 240Pu(SF); calculated energy differences for Hartree-Fock-Bogoliubov (HFB), mean field, and pairing energies for spherical, ground-state, first barrier and second well configurations. 216,222,226,230Th; calculated potential energy surfaces (PESs) in (Q20, Q30) and (Q20, Q40) planes, symmetric and asymmetric fission paths, fission valleys, energy differences for HFB, mean field, pairing energy, tensor energy, HFB with respect to the ground state, total tensor energy, proton and neutron pairing components as a function of Q40, total kinetic energy (TKE) and total excitation energy (TXE) at the exit point in the symmetric valley, mean neutron kinetic energy. 216,218,220,222,224,226,228,230,232Th, 236U, 240Pu; calculated barrier heights for symmetric and asymmetric paths. 106,107,108,109,110,111,112,113,114,115Rh; calculated S(n). Hartree-Fock-Bogoliubov (HFB) approach with D1ST2a Gogny plus tensor term. Comparison with results from standard D1S Gogny interaction, and with experimental data.

doi: 10.1103/PhysRevC.101.044615
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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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2018SI26      Phys.Rev.Lett. 121, 192501 (2018)

P.Singh, W.Korten, T.W.Hagen, A.Gorgen, L.Grente, M.-D.Salsac, F.Farget, E.Clement, G.de France, T.Braunroth, B.Bruyneel, I.Celikovic, O.Delaune, A.Dewald, A.Dijon, J.-P.Delaroche, M.Girod, M.Hackstein, B.Jacquot, J.Libert, J.Litzinger, J.Ljungvall, C.Louchart, A.Gottardo, C.Michelagnoli, C.Muller-Gatermann, D.R.Napoli, T.Otsuka, N.Pillet, F.Recchia, W.Rother, E.Sahin, S.Siem, B.Sulignano, T.Togashi, Y.Tsunoda, Ch.Theisen, J.J.Valiente-Dobon

Evidence for Coexisting Shapes through Lifetime Measurements in 98Zr

NUCLEAR REACTIONS 9Be(238U, X)98Zr, E=6.2 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced level lifetimes, B(E2) values. Comparison with available data. Recoil-distance Doppler shift method.

doi: 10.1103/PhysRevLett.121.192501
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2017AL40      Eur.Phys.J. A 53, 231 (2017)

N.Alamanos, M.Dupuis, N.Pillet

Topical Issue on Finite Range Effective Interactions and Associated Many-Body Methods - A Tribute to Daniel Gogny

doi: 10.1140/epja/i2017-12437-8
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2017PI06      Eur.Phys.J. A 53, 49 (2017)

N.Pillet, C.Robin, M.Dupuis, G.Hupin, J.-F.Berger

The self-consistent multiparticle-multihole configuration mixing - Motivations, state of the art and perspectives

doi: 10.1140/epja/i2017-12232-7
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2017PI15      Eur.Phys.J. A 53, 193 (2017)

N.Pillet, S.Hilaire

Towards an extended Gogny force History, state of the art and perspectives

NUCLEAR STRUCTURE Z=6-106[1385 nuclei]; calculated Q, mass and charge radii, deformation using HFB approximation with D2 and D1S forces and density-dependent term extended to finite range.

doi: 10.1140/epja/i2017-12369-3
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2017RO08      Phys.Rev. C 95, 044315 (2017)

C.Robin, N.Pillet, M.Dupuis, J.Le Bloas, D.Pena Arteaga, J.-F.Berger

Description of nuclear systems with a self-consistent configuration-mixing approach. II. Application to structure and reactions in even-even sd-shell nuclei

NUCLEAR STRUCTURE 20,22,24,26,28Ne, 24Mg, 28Si, 32S; calculated HFB potential energy surfaces (PES) in (β, γ) plane, main configuration components of the ground-states, differences between Hartree-Fock and self-consistent single-particle energies, squared modulus of the radial part of the single-particle orbitals. 28Si, 32S and 20Ne; calculated radial proton and neutron densities, proton, neutron, and proton-neutron correlations, excitation energies, B(E2) and charge transition densities and form factors from inelastic electron and proton scattering. 20,22,24,26,28Ne, 22,24,26,28,30Mg, 24,26,28,30,32Si, 28,30,32,34S, 32,34,36Ar; calculated low-energy levels, J, π, energies of the first 2+ states, binding energies and charge radii. Variational multiparticle-multihole (MPMH) configuration mixing approach using the D1S Gogny force. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.044315
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2016RO07      Phys.Rev. C 93, 024302 (2016)

C.Robin, N.Pillet, D.Pena Arteaga, J.-F.Berger

Description of nuclear systems with a self-consistent configuration-mixing approach: Theory, algorithm, and application to the 12C test nucleus

NUCLEAR STRUCTURE 12C; calculated generalized mean-field, single-particle orbitals and energies, HFB axial potential energy curve (PEC) and triaxial potential energy surface (PES), ground-state wave function and two-body correlation matrices, neutron density matrices, binding energy, excitation energy and B(E2) of the first 2+ state with the variational multiparticle-multihole configuration-mixing method and the D1S Gogny interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.024302
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2015CH15      Phys.Rev. C 91, 034312 (2015)

F.Chappert, N.Pillet, M.Girod, J.-F.Berger

Gogny force with a finite-range density dependence

NUCLEAR STRUCTURE 111,113,115,117,119,121,123,125,127,129,131Sn; calculated levels, J, π, odd-even mass difference. 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138Sn; calculated neutron pairing energy. 190,192,194,196,198,200,202,204,206,208,210,212,214Pb; calculated variation of charge radii. 116Sn, 208Pb; calculated spatial distribution of the neutron density and that of correlated neutron pairs. 164Dy, 168Er, 170Yb, 174Hf, 174W, 234Th, 236,238U, 240Pu, 242,246Cm, 250Cf; calculated pairing energy and potential energy evolution as a function of the deformation parameter β2 with HFB approximation. 234,238U, 238,240,244Pu, 242,244Cm, 250,252Cf; calculated fission barrier heights. Extension of the effective nucleon-nucleon Gogny interaction with zero-range density-dependent term and using D1S and D2 parametrizations. Comparison with available experimental data.

doi: 10.1103/PhysRevC.91.034312
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2015DU16      Eur.Phys.J. A 51, 168 (2015)

M.Dupuis, E.Bauge, S.Hilaire, F.Lechaftois, S.Peru, N.Pillet, C.Robin

Progress in microscopic direct reaction modeling of nucleon induced reactions

doi: 10.1140/epja/i2015-15168-x
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2014LE03      Phys.Rev. C 89, 011306 (2014)

J.Le Bloas, N.Pillet, M.Dupuis, J.M.Daugas, L.M.Robledo, C.Robin, V.G.Zelevinsky

First characterization of sd-shell nuclei with a multiconfiguration approach

NUCLEAR STRUCTURE 20,22,24,26,28Ne, 22,24,26,28,30Mg, 24,26,28,30,32Si, 26,28,30,32,34S, 30,32,34,36Ar; calculated binding energies, S(2n), S(2p), energies and B(E2) of first 2+ states, magnetic dipole and electric static quadrupole moments, B(M1) for transitions between low-lying 1+, 2+ and 3+ states in spherical Hartree-Fock (HF) and multiparticle-multihole configuration mixing (CM) approximations with D1S Gogny interaction. Comparison with experimental values.

doi: 10.1103/PhysRevC.89.011306
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2013LE08      Acta Phys.Pol. B44, 299 (2013)

J.Le Bloas, N.Pillet, J.-M.Daugas, M.Dupuis

Description of Light Nuclei (10 ≤ Z, N ≤ 18) Within the Multiparticle-Multihole Gogny Energy Density Functional

NUCLEAR STRUCTURE Ne, Mg, Si, S, Ar; calculated excitation energies, dipole moments. Comparison with experimental data.

NUCLEAR STRUCTURE 24,26Mg, 26,24,26,28,30,32Si, 34S, 28,30,32,34,36Ar; calculated B(E2), B(M1). D1S Gogny interaction, comparison with experimental data.

doi: 10.5506/APhysPolB.44.299
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2013RU07      Phys.Rev. C 87, 064317 (2013)

M.Rudigier, G.S.Simpson, J.M.Daugas, A.Blazhev, C.Fransen, G.Gey, M.Hackstein, J.Jolie, U.Koster, T.Malkiewicz, T.Materna, M.Pfeiffer, M.Ramdhane, J.-M.Regis, W.Rother, T.Thomas, N.Warr, D.Wilmsen, J.Le Bloas, N.Pillet

Delayed γ-ray and conversion-electron spectroscopy of A=97 fission fragments

NUCLEAR REACTIONS 241Pu, 241Am(n, F), E=thermal; measured Eγ, Iγ, ce, γγ-, (fragment)γ-, (fragment)ce-, (fragment)x ray-coin, γ(t), ce(t), isomer half-lives at ILL, Grenoble using Lohengrin Mass spectrometer. 97Rb, 97Sr; deduced levels, J, π, conversion coefficients, multipolarity, Nilsson configurations. Comparison with HFB and QPRM calculations.

NUCLEAR STRUCTURE 97Rb, 97Sr; calculated levels, J, π, potential energy curves as function of deformations of low-lying 1-qp states. Quasi-particle rotor model and Hartree-Fock-Bogoliubov calculations with D1N Gogny interaction using GAMPN, ASYRMO, and PROBAMO computer codes.

doi: 10.1103/PhysRevC.87.064317
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2012BO08      Phys.Lett. B 712, 319 (2012)

G.Boutoux, B.Jurado, V.Meot, O.Roig, L.Mathieu, M.Aiche, G.Barreau, N.Capellan, I.Companis, S.Czajkowski, K.-H.Schmidt, J.T.Burke, A.Bail, J.M.Daugas, T.Faul, P.Morel, N.Pillet, C.Theroine, X.Derkx, O.Serot, I.Matea, L.Tassan-Got

Study of the surrogate-reaction method applied to neutron-induced capture cross sections

NUCLEAR REACTIONS 174Yb(3He, αγ), (3He, pγ), E=24 MeV; measured reaction products, Eγ, Iγ; deduced σ, J, π. TALYS nuclear reaction model code calculations, comparison with available data.

doi: 10.1016/j.physletb.2012.05.012
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2012PI07      Phys.Rev. C 85, 044315 (2012)

N.Pillet, V.G.Zelevinsky, M.Dupuis, J.-F.Berger, J.M.Daugas

Low-lying spectroscopy of a few even-even silicon isotopes investigated with the multiparticle-multihole Gogny energy density functional

NUCLEAR STRUCTURE 26,28,30,32Si; calculated triaxial HFB potential energy surfaces, β and γ deformation parameters, ground state collective wavefunctions, levels, J, π, proton and neutron single particle orbitals, E(4+)/E(2+) ratios, proton and neutron occupation probabilities, strength functions, Slater determinants, statistical properties of highly excited configurations. Multiconfiguration (mp-mh) microscopic method with DIS Gogny effective interaction. Comparison with calculations from five-dimensional (5DCH) approximate generator coordinate method (GCM), and with experimental data.

doi: 10.1103/PhysRevC.85.044315
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2011BO30      J.Korean Phys.Soc. 59, 1924s (2011)

G.Boutoux, B.Jurado, V.Meot, M.Aiche, A.Bail, G.Barreau, E.Bauge, J.T.Burke, N.Capellan, I.Companis, S.Czajkowski, J.M.Daugas, D.Dassie, X.Derkx, T.Faul, B.Haas, L.Gaudefroy, F.Gunsing, I.Matea, L.Mathieu, P.Morel, N.Pillet, M.G.Porquet, O.Roig, P.Romain, O.Serot, J.Taieb, L.Tassan-Got, C.Theroine

Neutron-Induced Capture Cross Sections via the Surrogate Reaction Method

NUCLEAR REACTIONS 174Yb(3He, pγ), E=24 MeV; measured Ep, Ip(θ) using Si(Li), Eγ, Iγ using C6D6, pγ-coin, γγ-coin. 176Lu deduced γ emission probability, 175Lu(n, γ) σ using surrogate reaction; calculated 176Lu γ emission probability, 175Lu(n, γ) σ using TALYS.

doi: 10.3938/jkps.59.1924
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2010BL08      Phys.Rev. C 82, 034313 (2010)

G.Blanchon, N.Vinh Mau, A.Bonaccorso, M.Dupuis, N.Pillet

Particle-particle random-phase approximation applied to beryllium isotopes

NUCLEAR STRUCTURE 8,10,12,14Be; calculated levels, J, π, pp-RPA amplitudes, E1 strength distribution, S(2n), rms radii. Comparison to experimental data. Particle-particle random-phase approximation (pp-RPA) method using Woods-Saxon potential for the neutron-core interaction and D1S Gogny force for the neutron-neutron interaction.

doi: 10.1103/PhysRevC.82.034313
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2010DE02      Phys.Rev. C 81, 014303 (2010)

J.-P.Delaroche, M.Girod, J.Libert, H.Goutte, S.Hilaire, S.Peru, N.Pillet, G.F.Bertsch

Structure of even-even nuclei using a mapped collective Hamiltonian and the D1S Gogny interaction

NUCLEAR STRUCTURE A=2-250; analyzed charge radii, two-particle separation energies, correlation energies, excitation energies, transition matrix elements, deformation parameters, and transition strengths using the Hartree-Fock-Bogoliubov theory by the generator coordinate method and mapped onto a five-dimensional collective quadrupole Hamiltonian. Calculated properties of 1712 even-even nuclei.Evaluated performance of the CHFB+5DCH theory based on the Gogny D1S interaction.

doi: 10.1103/PhysRevC.81.014303
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2010LI51      J.Phys.:Conf.Ser. 205, 012007 (2010)

J.Libert, J.-P.Delaroche, M.Girod, H.Goutte, S.Hilaire, S.Peru, N.Pillet, G.F.Bertsch

Microscopic study of low energy collective states in even-even nuclei: A prospective analysis of dynamical corrections to vibrational mass parameters

NUCLEAR STRUCTURE 110Ru; calculated levels, J, π, inertia moment, deformation. 150,152,154,156,158,160,162,164Gd;calculated low-lying levels, J, π, rotational band. Z=20-110; calculated even-even nuclei 0+, 2+ levels. GCM mapped onto 5-Dimensional Collective Quadrupole Hamiltonian with quadrupole constraints deduced from Cogny D1S force. Compared with data.

doi: 10.1088/1742-6596/205/1/012007
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2010PI02      Phys.Rev. C 81, 034307 (2010)

N.Pillet, N.Sandulescu, P.Schuck, J.-F.Berger

Two-particle spatial correlations in superfluid nuclei

NUCLEAR STRUCTURE 102Sr, 152Sm, 238U; calculated local and nonlocal parts of the pairing tensor, and coherence lengths. 60Ni, 120,136Sn, 212Pb; calculated pairing correlation energies and average pairing fields, and coherence lengths. Effect of pairing on two-neutron spatial correlations in deformed nuclei. Hartree-Fock Bogoliubov calculations with D1S Gogny force.

doi: 10.1103/PhysRevC.81.034307
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2009GA41      Phys.Rev. C 80, 064313 (2009)

L.Gaudefroy, A.Obertelli, S.Peru, N.Pillet, S.Hilaire, J.-P.Delaroche, M.Girod, J.Libert

Collective structure of the N=40 isotones

NUCLEAR STRUCTURE 58Ar, 60Ca, 62Ti, 64Cr, 66Fe, 68Ni, 70Zn, 72Ge, 74Se, 76Kr, 78Sr, 80Zr, 82Mo; calculated single-particle energies, Nilsson diagrams, potential energy curves, neutron and proton pairing energy curves, excitation energies, spectroscopic quadrupole moments, and B(E2) using Hartree-Fock-Bogoliubov (HFB) approach using the Gogny D1S effective interaction Comparison with experimental data.

doi: 10.1103/PhysRevC.80.064313
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2009GO02      Phys.Rev. C 79, 014604 (2009)

G.Gosselin, N.Pillet, V.Meot, P.Morel, A.Ya.Dzyublik

Nuclear transition induced by low-energy unscreened electron inelastic scattering

NUCLEAR REACTIONS 110Ag, 201Hg(e, e'), E=1-100 keV; calculated σusing DWBA, PWBA, and WKB formalism.

doi: 10.1103/PhysRevC.79.014604
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2008PI04      Phys.Rev. C 78, 024305 (2008)

N.Pillet, J.-F.Berger, E.Caurier

Variational multiparticle-multihole configuration mixing method applied to pairing correlations in nuclei

NUCLEAR STRUCTURE 100,106,116Sn; calculated correlation energies, wave functions, levels, configurations. 100,106,112,114,116,118,120,122,124,132Sn; calculated charge radii, energies of first excited 0+ state. Variational multiparticle-multihole configuration mixing method. Comparison with experimental data. DIS parameterization of Gogny force.

doi: 10.1103/PhysRevC.78.024305
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2007PI11      Phys.Rev. C 76, 024310 (2007)

N.Pillet, N.Sandulescu, P.Schuck

Generic strong coupling behavior of Cooper pairs on the surface of superfluid nuclei

doi: 10.1103/PhysRevC.76.024310
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2006PI03      Int.J.Mod.Phys. E15, 464 (2006)

N.Pillet, J.-F.Berger, M.Girod, E.Caurier

Variational multiparticle-multihole mixing with the D1S Gogny force

doi: 10.1142/S0218301306004375
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2005PI09      Phys.Rev. C 71, 044306 (2005)

N.Pillet, N.Sandulescu, N.Van Giai, J.-F.Berger

Convergence of particle-hole expansions for the description of nuclear correlations

doi: 10.1103/PhysRevC.71.044306
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2002PI01      Nucl.Phys. A697, 141 (2002)

N.Pillet, P.Quentin, J.Libert

Pairing Correlations in an Explicitly Particle-Number Conserving Approach

NUCLEAR STRUCTURE 178Hf; calculated pair correlation energies vs quadrupole moment, total deformation energy, level energies and configurations. Particle-number conserving approach.

doi: 10.1016/S0375-9474(01)01240-4
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