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NSR database version of April 11, 2024.

Search: Author = S.Peru

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2024LI18      Phys.Rev. C 109, 034312 (2024)

B.D.Linh, A.Corsi, A.Gillibert, A.Obertelli, P.Doornenbal, C.Barbieri, T.Duguet, M.Gomez-Ramos, J.D.Holt, B.S.Hu, T.Miyagi, A.M.Moro, P.Navratil, K.Ogata, S.Peru, N.T.T.Phuc, N.Shimizu, V.Soma, Y.Utsuno, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.B.Gerst, J.Gibelin, K.I.Hahn, N.T.Khai, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.T.Wang, V.Werner, X.Xu, Y.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Onset of collectivity for argon isotopes close to N=32

doi: 10.1103/PhysRevC.109.034312
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2023BA20      Eur.Phys.J. A 59, 173 (2023); Errarum Eur.Phys.J. A 59, 219 (2023)

L.Batail, D.Davesne, S.Peru, P.Becker, A.Pastore, J.Navarro

A three-ranged Gogny interaction in touch with pion exchange: promising results to improve infinite matter properties

doi: 10.1140/epja/s10050-023-01073-w
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2023CU04      Phys.Rev.Lett. 131, 202501 (2023)

J.G.Cubiss, A.N.Andreyev, A.E.Barzakh, P.Van Duppen, S.Hilaire, S.Peru, S.Goriely, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, D.Atanasov, K.Blaum, T.E.Cocolios, T.Day Goodacre, A.de Roubin, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, R.D.Harding, M.Huyse, N.Imai, D.T.Joss, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, D.Neidherr, G.G.O'Neill, R.D.Page, S.D.Prosnyak, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, S.Sels, L.V.Skripnikov, A.Stott, C.Van Beveren, E.Verstraelen, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

Deformation versus Sphericity in the Ground States of the Lightest Gold Isotopes

NUCLEAR MOMENTS 176,177,178,179,180,181,182,183,187,191,193,195Au [from U(p, X), E=1.4 GeV]; measured frequencies; deduced mean-squared charge radii, ground-state deformations, nuclear magnetic moments. Comparison with available data. The in-source, resonance-ionization laser spectroscopy technique, at the ISOLDE facility (CERN).

doi: 10.1103/PhysRevLett.131.202501
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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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2023WE04      Phys.Rev. C 107, 034313 (2023)

F.Weber, T.E.Albrecht-Schonzart, S.O.Allehabi, S.Berndt, M.Block, H.Dorrer, C.E.Dullmann, V.A.Dzuba, J.G.Ezold, V.V.Flambaum, V.Gadelshin, S.Goriely, A.Harvey, R.Heinke, S.Hilaire, M.Kaja, T.Kieck, N.Kneip, U.Koster, J.Lantis, C.Mokry, D.Munzberg, S.Nothhelfer, S.Oberstedt, S.Peru, S.Raeder, J.Runke, V.Sonnenschein, M.Stemmler, D.Studer, P.Thorle-Pospiech, H.Tomita, N.Trautmann, S.Van Cleve, J.Warbinek, K.Wendt

Nuclear moments and isotope shifts of the actinide isotopes 249-253Cf probed by laser spectroscopy

NUCLEAR MOMENTS 249,250,251,252,253Cf; measured hyperfine spectra; deduced energy positions of three atomic ground-state transitions, isotope shifts. 249,251,253Cf; deduced nuclear magnetic dipole moments, hyperfine parameters. 249,253Cf; deduced spectroscopic quadrupole moments. Comparison with previous experimental data. Laser resonance ionisation high-resolution spectroscopy. Comparison to theoretical estimations. RISIKO mass separator at Johannes Gutenberg University Mainz.

doi: 10.1103/PhysRevC.107.034313
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2022BE24      Phys.Lett. B 834, 137479 (2022)

F.L.Bello Garrote, A.Lopez-Martens, A.C.Larsen, I.Deloncle, S.Peru, F.Zeiser, P.T.Greenlees, B.V.Kheswa, K.Auranen, D.L.Bleuel, D.M.Cox, L.Crespo Campo, F.Giacoppo, A.Gorgen, T.Grahn, M.Guttormsen, T.W.Hagen, L.Harkness-Brennan, K.Hauschild, G.Henning, R.-D.Herzberg, R.Julin, S.Juutinen, T.A.Laplace, M.Leino, J.E.Midtbo, V.Modamio, J.Pakarinen, P.Papadakis, J.Partanen, T.Renstrom, K.Rezynkina, M.Sandzelius, J.Saren, C.Scholey, S.Siem, J.Sorri, S.Stolze, J.Uusitalo

Experimental observation of the M1 scissors mode in 254No

NUCLEAR REACTIONS 208Pb(48Ca, 2n)254No, E=220, 222 MeV; 154Sm(48Ca, 6n)196Pb, E not given; measured Eγ, Iγ, prompt and recoil-gated γ-ray singles spectra, polarization asymmetries of discreet γ rays in 254No and 196Pb; deduced experimental γ-ray yield and compared with simulated γ spectra using RAINIER code, γ-strength function (γSF), B(M1), B(E1), widths, scissors mode of excitation in 254No. Comparison with BSFG + E1SLO + M1SLO model combination; tested parameters for the GDR and the spin-flip resonance by HFB calculations. Comparison of B(M1) strength with QRPA calculations.

doi: 10.1016/j.physletb.2022.137479
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2021BA45      Phys.Rev.Lett. 127, 192501 (2021)

A.Barzakh, A.N.Andreyev, C.Raison, J.G.Cubiss, P.Van Duppen, S.Peru, S.Hilaire, S.Goriely, B.Andel, S.Antalic, M.Al Monthery, J.C.Berengut, J.Bieron, M.L.Bissell, A.Borschevsky, K.Chrysalidis, T.E.Cocolios, T.Day Goodacre, J.-P.Dognon, M.Elantkowska, E.Eliav, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, L.P.Gaffney, R.F.Garcia Ruiz, M.Godefroid, C.Granados, R.D.Harding, R.Heinke, M.Huyse, J.Karls, P.Larmonier, J.G.Li, K.M.Lynch, D.E.Maison, B.A.Marsh, P.Molkanov, P.Mosat, A.V.Oleynichenko, V.Panteleev, P.Pyykko, M.L.Reitsma, K.Rezynkina, R.E.Rossel, S.Rothe, J.Ruczkowski, S.Schiffmann, C.Seiffert, M.D.Seliverstov, S.Sels, L.V.Skripnikov, M.Stryjczyk, D.Studer, M.Verlinde, S.Wilman, A.V.Zaitsevskii

Large Shape Staggering in Neutron-Deficient Bi Isotopes

NUCLEAR MOMENTS 187,188,189,191Bi; measured frequencies. 209Bi; deduced hfs, mean-square charge radii, magnetic dipole, and electric quadrupole moments. Comparison with HFB PES calculations, available data.

doi: 10.1103/PhysRevLett.127.192501
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2021PE12      Phys.Rev. C 104, 024328 (2021)

S.Peru, S.Hilaire, S.Goriely, M.Martini

Description of magnetic moments within the Gogny Hartree-Fock-Bogolyubov framework: Application to Hg isotopes

NUCLEAR STRUCTURE 177Hg; calculated potential energy curves for different Kπ blockings as a function of quadrupole deformation parameter β, magnetic moments as a function of spectroscopic quadrupole moments. 178,180,182,184,186,188,190,192,194,196,198,200,202,204Hg; calculated quadrupole deformation parameters β and binding energies of the oblate and prolate minima. 177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206Hg; calculated isotope shifts and spectroscopic quadrupole moments. Gogny Hartree-Fock-Bogolyubov (HFB) calculations with self-consistent blocking of the unpaired nucleon, and D1M interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.024328
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2021ZA06      Phys.Rev. C 104, 014607 (2021)

J.C.Zamora, C.Sullivan, R.G.T.Zegers, N.Aoi, L.Batail, D.Bazin, M.Carpenter, J.J.Carroll, Y.D.Fang, H.Fujita, U.Garg, G.Gey, C.J.Guess, M.N.Harakeh, T.H.Hoang, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, N.Kobayashi, T.Koike, M.Kumar Raju, S.Lipschutz, M.Liu, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.Peru, J.Pereira, J.Schmitt, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, X.Zhou, S.Zhu

Investigation of the isoscalar response of 24Mg to 6Li scattering

NUCLEAR REACTIONS 24Mg(6Li, 6Li'), E=100 MeV/nucleon; measured scattered 6Li particles, σ(θ) using Grand Raiden spectrometer and two position-sensitive multiwire drift chambers (MWDCs) and three plastic scintillators for particle identification and reconstructing their trajectories at RCNP-Osaka University; deduced differential σ(E, Q), angular momentum transfers by fitting with multipole-decomposition analysis (MDA) using DWBA calculations for angular-momentum transfers. 24Mg; deduced energies, widths, EWSR, isoscaler giant monopole resonance (ISGMR), isoscaler giant monopole resonance (ISGDR), isoscaler giant quadrupole resonance (ISGQR) strength functions from Lorentzian fits to data. Comparison with antisymmetrized molecular dynamics (AMD) calculations, and with previous experimental data.

doi: 10.1103/PhysRevC.104.014607
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2020AN12      Phys.Rev. C 102, 014319 (2020)

B.Andel, A.N.Andreyev, S.Antalic, M.Al Monthery, A.Barzakh, M.L.Bissell, K.Chrysalidis, T.E.Cocolios, J.G.Cubiss, T.Day Goodacre, N.Dubray, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, L.P.Gaffney, R.F.Garcia Ruiz, S.Goriely, C.Granados, R.D.Harding, R.Heinke, S.Hilaire, M.Huyse, J.-F.Lemaitre, K.M.Lynch, B.A.Marsh, P.Molkanov, P.Mosat, S.Peru, C.Raison, S.Rothe, C.Seiffert, M.D.Seliverstov, S.Sels, D.Studer, J.Sundberg, P.Van Duppen

β-delayed fission of isomers in 188Bi

RADIOACTIVITY 188,188m,190,190mBi(α), (β+F)[from U(p, X), E=1.4 GeV using RILIS and HRS separators at ISOLDE-CERN facility]; measured Eα, Iα, fission fragment energies, (fission fragment)(fission fragment)-coin; deduced partial T1/2 of β+-delayed fission (βDF) mode, βDF probabilities. 188Pb; deduced mean total kinetic energy and fission fragment mass distribution after 188Bi β-decay of high-spin isomer of 188Bi, limits of βDF partial half-lives of the two activities in 190Bi. Comparison of partial βDF partial half-lives with calculations based on HFB and QRPA, and those of fragment mass distribution with SPY and FRLDM-based calculations. Systematics of βDF partial T1/2 in neutron deficient nuclei in Tl, Bi, At, Fr, Np, Am, Bk, Es and Md isotopes. 182,184,186,188,190,192Pb; calculated theoretical pre-neutron-emission fission fragment mass distributions (FFMDs) with the SPY model using the D1M-Gogny interaction, and with the FRLDM model.

doi: 10.1103/PhysRevC.102.014319
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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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2020GO15      Phys.Rev. C 102, 064309 (2020)

S.Goriely, S.Peru, G.Colo, X.Roca-Maza, I.Gheorghe, D.Filipescu, H.Utsunomiya

E1 moments from a coherent set of measured photoneutron cross sections

NUCLEAR REACTIONS 59Co, 89Y, 103Rh, 139La, 159Tb, 165Ho, 169Tm, 181Ta, 197Au, 209Bi(γ, xn), E=neutron threshold to 40 MeV quasimonochromatic laser Compton-scattering (LCS) γ-ray beams; analyzed E1 moments, dipole polarizability times the symmetry energy, and enhancement factor of the TRK sum rule from experimental data for E1 photoneutron σ(E), integrated σ(E)TRK, centroid energies, and the polarizabilities obtained at the newSUBARU facility. Skyrme and Gogny Hartree-Fock-Bogolyubov (HFB) plus QRPA calculations, with D1M, D1S, and D1N interactions. Comparison between experimental E1 photon strength function (PSF) of 208Pb and 209Bi with the corresponding estimate of the strength contribution to the polarizability.

doi: 10.1103/PhysRevC.102.064309
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2020SI13      Phys.Rev. C 102, 014318 (2020)

M.Siciliano, I.Zanon, A.Goasduff, P.R.John, T.R.Rodriguez, S.Peru, I.Deloncle, J.Libert, M.Zielinska, D.Ashad, D.Bazzacco, G.Benzoni, B.Birkenbach, A.Boso, T.Braunroth, M.Cicerchia, N.Cieplicka-Orynczak, G.Colucci, F.Davide, G.de Angelis, B.de Canditiis, A.Gadea, L.P.Gaffney, F.Galtarossa, A.Gozzelino, K.Hadynska-Klek, G.Jaworski, P.Koseoglou, S.M.Lenzi, B.Melon, R.Menegazzo, D.Mengoni, A.Nannini, D.R.Napoli, J.Pakarinen, D.Quero, P.Rath, F.Recchia, M.Rocchini, D.Testov, J.J.Valiente-Dobon, A.Vogt, J.Wiederhold, W.Witt

Shape coexistence in neutron-deficient 188Hg investigated via lifetime measurements

NUCLEAR REACTIONS 158Gd(34S, 4n), E=165 MeV; 160Gd(34S, 6n), E=185 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by recoil-distance Doppler-shift (RDDS) method using the GALILEO γ-ray spectrometer, Neutron Wall array, and GALILEO plunger device at the INFN-LNL facility. 188Hg; deduced levels, J, π, B(E2), transition quadrupole moments, β2, shape coexistence, and deformations for normal and intruder configurations. Comparison with two-band mixing model with beyond-mean-field approaches, and with previous experimental results for level lifetimes. Systematics of levels in yrast bands in N=96-114 even-even mercury isotopes, and those of mean-square charge radii for N=96-114 even-even Hg, Pb and Po isotopes.

NUCLEAR STRUCTURE 180,182,184,186,188Hg; calculated levels, J, π, rotational bands built on the first two 0+ states using the two-band mixing model, potential energy surfaces (PES) in (β2, γ) plane, single-proton and neutron energies as function of the deformation β2. Two state-of-the-art beyond mean-field calculations using the symmetry-conserving configuration-mixing (SCCM) approach for axial shapes and the five-dimensional collective Hamiltonian (5DCH).

doi: 10.1103/PhysRevC.102.014318
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2020ZA05      Phys.Rev. C 101, 064609 (2020)

J.C.Zamora, C.Sullivan, R.G.T.Zegers, N.Aoi, L.Batail, D.Bazin, M.Carpenter, J.J.Carroll, I.Deloncle, Y.D.Fang, H.Fujita, U.Garg, G.Gey, C.J.Guess, M.N.Harakeh, T.H.Hoang, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, N.Kobayashi, T.Koike, M.Kumar Raju, S.Lipschutz, M.Liu, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.Peru, J.Pereira, J.Schmitt, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, X.Zhou, S.Zhu

Reexamination of isoscalar giant resonances in 12C and 93Nb through 6Li scattering

NUCLEAR REACTIONS 12C, 93Nb(6Li, 6Li'), E=100 MeV/nucleon; measured 6Li spectra, double-differential σ, and angular distributions for the isoscalar giant monopole resonances (ISGMRs) using the high-resolution Grand Raiden magnetic spectrometer at the RCNP-Osaka facility; deduced contribution of different angular momentum transfers to differential σ, energies, widths and E0 strength distribution of GMRs, EWSR, influence on GMRs due to nuclear structure. Angular distribution data fitted using multipole-decomposition analysis (MDA) and DWBA methods. Comparison with antisymmetrized molecular dynamics (AMD) calculations, and with previous experimental data.

doi: 10.1103/PhysRevC.101.064609
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2019BR10      Phys.Rev. C 99, 054330 (2019)

C.P.Brits, K.L.Malatji, M.Wiedeking, B.V.Kheswa, S.Goriely, F.L.Bello Garrote, D.L.Bleuel, F.Giacoppo, A.Gorgen, M.Guttormsen, K.Hadynska-Klek, T.W.Hagen, S.Hilaire, V.W.Ingeberg, H.Jia, M.Klintefjord, A.C.Larsen, S.N.T.Majola, P.Papka, S.Peru, B.Qi, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, G.M.Tveten, F.Zeiser

Nuclear level densities and γ-ray strength functions of 180, 181, 182Ta

NUCLEAR REACTIONS 181Ta(d, p), E=12.5 MeV; 181Ta(d, d'), (d, t), E=12.5, 15 MeV; 181Ta(3He, 3He'), (3He, α), E=34 MeV; measured Ep, Ip, Ed, Id, E(t), I(t), E(3He), I(3He), Eα, Iα, Eγ, Iγ, and (particle)γ-coin using the SiRi particle telescope for charged particles and CACTUS scintillator for γ detection at the Oslo Cyclotron Laboratory. 180,181,182Ta; deduced γ strength functions (γSF), nuclear level densities (NLDs) by OSLO method, energy and γ deformation of scissors resonance (SR). Back-shifted Fermi-gas, constant temperature plus Fermi gas, and Hartree-Fock-Bogoliubov plus combinatorial models used for absolute normalization of experimental NLDs at the neutron separation energies. 181Ta(n, γ), E=0.004-1 MeV; deduced σ(E). Comparison with theoretical model calculations, and with previous experimental results. 181,182Ta; calculated potential energy surfaces in (ϵ2, γ) plane for the ground states using the cranking Nilsson model plus shell correction method.

doi: 10.1103/PhysRevC.99.054330
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2019GO30      Eur.Phys.J. A 55, 172 (2019)

S.Goriely, P.Dimitriou, M.Wiedeking, T.Belgya, R.Firestone, J.Kopecky, M.Krticka, V.Plujko, R.Schwengner, S.Siem, H.Utsunomiya, S.Hilaire, S.Peru, Y.S.Cho, D.M.Filipescu, N.Iwamoto, T.Kawano, V.Varlamov, R.Xu

Reference database for photon strength functions

doi: 10.1140/epja/i2019-12840-1
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2019KR04      Phys.Rev. C 99, 044308 (2019)

M.Krticka, S.Goriely, S.Hilaire, S.Peru, S.Valenta

Constraints on the dipole photon strength functions from experimental multistep cascade spectra

NUCLEAR STRUCTURE 96,98Mo, 112,114Cd, 153,155,156,157,158,159Gd, 162,164Dy, 235,237,239U; analyzed experimental data for multistep γ cascade (MSC) spectra from DANCE detector at LANSCE-LANL; deduced parameter for the zero-ϵγ limit of the M1 photo-strength function (PSF) in the D1M+QRPA+0lim model. 96,98Mo, 112Cd, 156,157Gd, 162,164Dy, 235,239U; calculated sum energy spectra, multiplicity distributions (MD), multistep γ cascade spectra (MCS) from decay of resonances populated in neutron-capture using axially deformed HFB plus quasiparticle random phase approximation (QRPA) with D1M Gogny interaction and a phenomenological low-energy contribution. Comparison with experimental data. Z=10-110, N=10-230; calculated Maxwellian-averaged cross sections for (n, γ) at a temperature of 109K using D1M+QRPA+0lim formalism and compared with GLO+SF PSF recommended in RIPL-3.

doi: 10.1103/PhysRevC.99.044308
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2019PE23      Eur.Phys.J. A 55, 232 (2019)

S.Peru, I.Deloncle, S.Hilaire, S.Goriely, M.Martini

Study of dipole excitations in even-even 156-166Dy with QRPA using the Gogny force

doi: 10.1140/epja/i2019-12896-9
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2019TA10      Nature(London) 569, 53 (2019)

R.Taniuchi, C.Santamaria, P.Doornenbal, A.Obertelli, K.Yoneda, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, J.D.Holt, T.Isobe, V.Lapoux, M.Matsushita, J.Menendez, S.Momiyama, T.Motobayashi, M.Niikura, F.Nowacki, K.Ogata, H.Otsu, T.Otsuka, C.PĂ©ron, S.Peru, A.Peyaud, E.C.Pollacco, A.Poves, J.-Y.Rousse, H.Sakurai, A.Schwenk, Y.Shiga, J.Simonis, S.R.Stroberg, S.Takeuchi, Y.Tsunoda, T.Uesaka, H.Wang, F.Browne, L.X.Chung, Z.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.Shand, P.-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Z.Vajta, V.Werner, J.Wu, Z.Y.Xu

78Ni revealed as a doubly magic stronghold against nuclear deformation

NUCLEAR REACTIONS 1H(79Cu, 2p), (80Zn, 3p)78Ni, E ∼ 250 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced partial σ, energy levels, J, π, magic nature. Comparison with theoretical calculations.

doi: 10.1038/s41586-019-1155-x
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2019UT01      Phys.Rev. C 99, 024609 (2019)

H.Utsunomiya, T.Renstrom, G.M.Tveten, S.Goriely, T.Ari-izumi, D.Filipescu, J.Kaur, Y.-W.Lui, W.Luo, S.Miyamoto, A.C.Larsen, S.Hilaire, S.Peru, A.J.Koning

γ-ray strength function for thallium isotopes relevant to the 205Pb - 205Tl chronometry

NUCLEAR REACTIONS 203,205Tl(γ, n), E=7.9-13.0 MeV; measured E(n), I(n), σ(E) using 4π 3He proportional counter array for neutron detection at NewSUBARU synchrotronic radiation facility; deduced GDR parameters and γ-ray strength function (γSF), the latter on the basis of the Hartree-Fock-Bogolyubov plus quasiparticle random-phase approximation using the Gogny D1M interaction for E1 and M1 components with the zero-limit correction (QRPA+D1M+0lim). 203,205Tl(n, γ), Eγ=0.001-4 MeV; calculated σ(E) with the D1M+QRPA+0lim, and compared with available experimental results. 204Tl(n, γ), T=0-1 GK; calculated Maxwellian averaged σ(E) (MACS) with the D1M+QRPA+0lim strength function, and compared with experimental results, and recommended σ in compilations by Bao et al.

doi: 10.1103/PhysRevC.99.024609
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2019UT02      Phys.Rev. C 100, 034605 (2019)

H.Utsunomiya, T.Renstrom, G.M.Tveten, S.Goriely, T.Ari-izumi, V.W.Ingeberg, B.V.Kheswa, Y.-W.Lui, S.Miyamoto, S.Hilaire, S.Peru, A.J.Koning

γ-ray strength function for barium isotopes

NUCLEAR REACTIONS 137Ba(γ, n)136Ba, E=7-13 MeV; 138Ba(γ, n)137Ba, E=8.75-13 MeV from laser Compton scattering at the NewSUBARU synchrotron radiation facility at the University of Hyogo; measured En, In; deduced σ(E), E1 and M1 γ-strength functions; σ(E) compared to TALYS calculations. The photoneutron data used to constrain the γ strength function on the basis of the Hartree-Fock-Bogolyubov plus quasiparticle random phase approximation using the Gogny D1M interaction. Comparison with previous experimental data. 131,133Ba(n, γ), kT=30 keV; estimated Maxwellian-averaged cross sections.

doi: 10.1103/PhysRevC.100.034605
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2018CO06      Phys.Rev. C 97, 044315 (2018)

M.L.Cortes, P.Doornenbal, M.Dupuis, S.M.Lenzi, F.Nowacki, A.Obertelli, S.Peru, N.Pietralla, V.Werner, K.Wimmer, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, C.Louchart, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, F.Browne, L.X.Chung, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.M.Shand, P-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, J.Wu, Z.Xu

Inelastic scattering of neutron-rich Ni and Zn isotopes off a proton target

NUCLEAR REACTIONS 1H(72Ni, p'), E=271.0 MeV/nucleon; 1H(74Ni, p'), E=263.5 MeV/nucleon; 1H(76Zn, p'), E=275.5 MeV/nucleon; 1H(80Zn, p'), E=263.4 MeV/nucleon, [secondary 72,74Ni, 76,80Zn beams from 9Be(238U, X), E=345 MeV/nucleon primary reaction, followed by separation of fragments using BigRIPS separator]; measured reaction products, yields, Eγ, Iγ, particles, (particle)γ-coin, angular integrated proton inelastic scattering σ using MINOS target device, DALI2 array for γ detection and ZeroDegree spectrometer for particles at RIBF-RIKEN facility. 72,74Ni, 76,80Zn; deduced first 2+ and 4+ levels, and second 2+ levels in 72,74Ni; analyzed B(E2) values and matrix elements for the first 2+ states. Comparison with shell-model calculations, and with previous measurements. Systematics of β2 deformation parameters in 62Zn to 80Zn, and 54Ni to 74Ni isotopes. Comparison of experimental σ for inelastic scattering with calculations using Jeukenne-Lejeune-Mahaux (JLM) folding model with quasiparticle random-phase approximation (QRPA). 58Ni(p, p), E=295, 250, 333 MeV; 58Ni(p, p'), E=178 MeV; analyzed σ(θ) data using the JLM reaction model and KD02 potential.

doi: 10.1103/PhysRevC.97.044315
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2018GA18      Phys.Rev. C 97, 064317 (2018)

L.Gaudefroy, S.Peru, N.Arnal, J.Aupiais, J.-P.Delaroche, M.Girod, J.Libert

Impact of Coriolis mixing on a two-quasi-neutron isomer in 164Gd100 and other N=100 isotones

RADIOACTIVITY 252Cf(SF); measured fission fragments, Eγ, Iγ, (fragment)γ- and γγ-coin, half-life of a 4- isomer in 164Gd using a fission chamber consisting of a metalized polyethylene terephtalate film for detection of fission fragments, and an array of eight HPGe detectors for γ rays at CEA, DAM, DIF facility. 164Gd; deduced levels, J, π, 4- isomer, configuration. 160Nd, 162Sm, 164Gd, 166Dy, 168Er, 170Yb, 172Hf; calculated levels, J, π, T1/2 of 4- isomers, E1+M2+E3 admixtures in the γ transition from the 4- isomeric states, and compared with experimental data. Calculations involved K-mixing on top of axially symmetric-deformed QRPA approach with Gogny D1M interaction for excited states, and five-dimensional collective Hamiltonian 5DCH approach for ground states.

doi: 10.1103/PhysRevC.97.064317
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2018GO15      Phys.Rev. C 98, 014327 (2018)

S.Goriely, S.Hilaire, S.Peru, K.Sieja

Gogny-HFB+QRPA dipole strength function and its application to radiative nucleon capture cross section

NUCLEAR STRUCTURE 72,74,76Ge, 75As, 76,80,82Se, 90,92,94Zr, 103Rh, 107,109Ag, 115In, 112,114,117,118,119,120,122,124Sn, 127I, 133Cs, 136,138Ba, 141Pr, 142,143,144,145,146,148,150Nd, 144,148,149,150,152,153,154Sm, 153Eu, 156,160Gd, 159Tb, 165Ho, 168Er, 171,174Yb, 175,176Lu, 178,180Hf, 182,184,186W, 186,188,189,190,192Os, 191,193Ir, 194,195,196,198Pt, 44Sc, 44Ti, 134Xe, 50V, 56Fe, 89Y, 92,94,96,98Mo, 106,108Pd, 106,112Cd, 139La, 162,164Dy, 167Er, 180,182Ta, 206,208Pb, 232Th, 232Pa, 237,238,239U, 238Np; calculated E1 and M1 deexcitation strength functions, and compared with experimental GDR and Oslo strengths. A=40-250, Z=20-83; calculated total average radiative widths, and compared with experimental data, ratios of theoretical to experimental MACS at kT=30 keV. Z=8-94, N=10-190; calculated ratio of (n, γ) and (p, γ) MACS at T=109 K obtained using D1M+QRPA+0lim+ and the ones obtained using the generalized Lorentzian (GLO) model for nuclei between the neutron and proton driplines. Axially symmetric deformed quasiparticle random-phase approximation with finite-range D1M Gogny force (Gogny-HFB+QRPA).

NUCLEAR REACTIONS 135Ba(n, γ), E=1 keV-1 MeV; 100Mo(n, γ), E=1 keV-20 MeV; calculated σ(E) with D1M+QRPA E1 and M1 strengths, and compared with experimental data. Cl(p, γ), E=172.5 MeV; calculated ratio of (n, γ) MACS at T=109 K obtained using D1M+QRPA+0lim+ and the ones obtained using the generalized Lorentzian (GLO) model.

doi: 10.1103/PhysRevC.98.014327
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2018RE07      Phys.Rev. C 97, 054332 (2018)

K.Rezynkina, A.Lopez-Martens, K.Hauschild, I.Deloncle, S.Peru, P.Brionnet, M.L.Chelnokov, V.I.Chepigin, O.Dorvaux, F.Dechery, H.Faure, B.Gall, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Influence of octupole vibration on the low-lying structure of 251Fm and other heavy N = 151 isotones

RADIOACTIVITY 255No(α)[from 48Ca(208Pb, n), E=220 MeV and from ϵ decay of 255Lr produced in 48Ca(209Bi, 2n), E=214 MeV using the VASSILISSA separator with the GABRIELA spectrometer at FLNR-JINR, Dubna]; measured Eγ, Iγ, x rays, E(ce), I(ce), Eα, αγ-coin, (ce)α-coin, isomer half-life by γ(t) using implantation silicon detector strips for conversion electrons and α detection, and HPGe detector array for γ detection. 251Fm; deduced levels, J, π, conversion coefficients, multipolarities, B(M2), B(E3), and E3/M2 mixing ratio of 5/2+ to g.s transition. Comparison with previous experimental results, and with theoretical calculations. Systematics of low-lying excited states in 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf.

NUCLEAR STRUCTURE 246,247Cm, 248,249Cf, 250,251Fm, 252,253No, 254Rf; calculated energies of 2- phonon levels in even-A, and 5/2+ states from 2- phonon levels built on 9/2- ground states in odd-A nuclei, B(E3) using QRPA with Gogny D1M parametrization, configuration amplitudes for odd-A isotopes from QPM with Woods-Saxon potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.054332
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2018RE15      Phys.Rev. C 98, 054310 (2018)

T.Renstrom, H.Utsunomiya, H.T.Nyhus, A.C.Larsen, M.Guttormsen, G.M.Tveten, D.M.Filipescu, I.Gheorghe, S.Goriely, S.Hilaire, Y.-W.Lui, J.E.Midtbo, S.Peru, T.Shima, S.Siem, O.Tesileanu

Verification of detailed balance for γ absorption and emission in Dy isotopes

NUCLEAR REACTIONS 162,163Dy(γ, n), E=6.4-13.5 MeV laser Compton backscattered γ-ray beam; measured neutron spectra, and σ(E) using 4π 3He proportional counter array for neutron detection at the NewSUBARU synchrotronic radiation facility; deduced renormalized nuclear level densities (NLD), γ-strength functions (γSF). 160,161,162,163,164Dy; deduced γ strength functions, nuclear level densities, E1 γ strength function, and M1 scissors resonance σ, centroids, widths, B(M1). 159,160,161,162,163Dy(n, γ), E=0.001-1 MeV; calculated σ(E) with TALYS-1.8 code, and compared to previous experimental data. 160,161,162,163,164Dy(3He, α), (3He, 3He'), E*<8 MeV; analyzed previous experimental data; deduced level densities.

doi: 10.1103/PhysRevC.98.054310
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2018UT03      Phys.Rev. C 98, 054619 (2018)

H.Utsunomiya, T.Renstrom, G.M.Tveten, S.Goriely, S.Katayama, T.Ari-izumi, D.Takenaka, D.Symochko, B.V.Kheswa, V.W.Ingeberg, T.Glodariu, Y.-W.Lui, S.Miyamoto, A.C.Larsen, J.E.Midtbo, A.Gorgen, S.Siem, L.Crespo Campo, M.Guttormsen, S.Hilaire, S.Peru, A.J.Koning

Photoneutron cross sections for Ni isotopes: Toward understanding (n, γ) cross sections relevant to weak s-process nucleosynthesis

NUCLEAR REACTIONS 58,60,61,64Ni(γ, n), E=8.00-22.02 MeV; measured E(n), I(n), σ(E) using 3He proportional counters for neutrons and LaBr3(Ce) detector for γ-flux at NewSUBARU synchrotron radiation facility; deduced γ-ray strength functions (γSF); compared σ(E) with previous experimental data, and with TALYS predictions. 58,60,63,64(n, γ), E=0.01-10 MeV; calculated radiative σ(E) and Maxwellian averaged σ (MACS) in terms of the experimentally constrained γ-ray strength functions from the Hartree-Fock-Bogolyubov plus quasiparticle-random-phase approximation (HFB+QRPA) based on the Gogny D1M interaction for E1 and M1 components, supplemented with the M1 upbend. Relevance to the s-process nucleosynthesis, and radioactive nuclei at the s-process branching points.

doi: 10.1103/PhysRevC.98.054619
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2017DE27      Eur.Phys.J. A 53, 170 (2017)

I.Deloncle, S.Peru, M.Martini

Electromagnetic dipole and Gamow-Teller responses of even and odd 90-9440Zr isotopes in QRPA calculations with the D1M Gogny force

NUCLEAR STRUCTURE 90,91,92,93,94Zr; calculated B(E1), B(M1) strength distribution for pygmy and giant dipole resonances using HFB + QRPA with D1M Gogny force, magnetic nuclear spin-flip excitations, GT transitions using pnQRPA charge exchange code. Compared to available data.

doi: 10.1140/epja/i2017-12354-x
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2017GO14      Phys.Lett. B 772, 359 (2017)

A.Gottardo, D.Verney, I.Deloncle, S.Peru, C.Delafosse, S.Roccia, I.Matea, C.Sotty, C.Andreoiu, C.Costache, M.-C.Delattre, A.Etile, S.Franchoo, C.Gaulard, J.Guillot, F.Ibrahim, M.Lebois, M.MacCormick, N.Marginean, R.Marginean, M.Martini, C.Mihai, I.Mitu, L.Olivier, C.Portail, L.Qi, B.Roussiere, L.Stan, D.Testov, J.Wilson, D.T.Yordanov

Unexpected high-energy γ emission from decaying exotic nuclei

RADIOACTIVITY 80,83Ga(β-); measured decay products, Eγ, Iγ; deduced γ-ray emissions, B(E1), GT β-decay and E1 strength distributions. Comparison with microscopic Gogny-QRPA calculations.

doi: 10.1016/j.physletb.2017.06.050
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2017KO20      Phys.Rev. C 95, 054317 (2017)

J.Kopecky, S.Goriely, S.Peru, S.Hilaire, M.Martini

E1 and M1 strength functions from average resonance capture data

NUCLEAR REACTIONS 75As, 91Zr, 95,97Mo, 101Ru, 105Pd, 113Cd, 123Te, 127I, 134,135Ba, 145Nd, 154Sm, 153Eu, 154,155,156,157,158Gd, 161,162,163,164Dy, 165Ho, 167Er, 169Tm, 171,173Yb, 175Lu, 177Hf, 181Ta, 183,184,186W, 187,188,190,192Os, 192,194Ir, 194,195,196,198Pt, 197Au, 232Th, 238U, 239Pu(n, γ), E=2, 24 keV; analyzed average resonance capture (ARC) data measured at different filter beam facilities ANL, INEL, and BNL between 1970 and 1990; deduced E1 and M1 photon strength function, comparison to the photon strength function extracted from other experimental methods, such as photoneutron data and Oslo-method data, and with quasiparticle random phase approximation (QRPA) calculations based on the D1M Gogny force.

doi: 10.1103/PhysRevC.95.054317
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2016CL01      Phys.Rev.Lett. 116, 022701 (2016)

E.Clement, M.Zielinska, A.Gorgen, W.Korten, S.Peru, J.Libert, H.Goutte, S.Hilaire, B.Bastin, C.Bauer, A.Blazhev, N.Bree, B.Bruyneel, P.A.Butler, J.Butterworth, P.Delahaye, A.Dijon, D.T.Doherty, A.Ekstrom, C.Fitzpatrick, C.Fransen, G.Georgiev, R.Gernhauser, H.Hess, J.Iwanicki, D.G.Jenkins, A.C.Larsen, J.Ljungvall, R.Lutter, P.Marley, K.Moschner, P.J.Napiorkowski, J.Pakarinen, A.Petts, P.Reiter, T.Renstrom, M.Seidlitz, B.Siebeck, S.Siem, C.Sotty, J.Srebrny, I.Stefanescu, G.M.Tveten, J.Van de Walle, M.Vermeulen, D.Voulot, N.Warr, F.Wenander, A.Wiens, H.De Witte, K.Wrzosek-Lipska

Spectroscopic Quadrupole Moments in 96, 98Sr: Evidence for Shape Coexistence in Neutron-Rich Strontium Isotopes at N=60

NUCLEAR REACTIONS 109Ag, 120Sn(96Sr, 96Sr'), E=275 MeV;60Ni, 208Pb(98Sr, 98Sr'), E=276 MeV; measured reaction products, Eγ, Iγ. 96,98Sr; deduced B(E2) and B(M1)values, spectroscopic quadrupole moments. Comparison with beyond-mean-field calculations using the Gogny D1S interaction, least squares fitting code GOSIA.

NUCLEAR STRUCTURE 96,98Sr; calculated B(E2) values with the Gogny D1S interaction in a five-dimensional collective Hamiltonian (5DCH) formalism.

doi: 10.1103/PhysRevLett.116.022701
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2016CL03      Phys.Rev. C 94, 054326 (2016)

E.Clement, M.Zielinska, S.Peru, H.Goutte, S.Hilaire, A.Gorgen, W.Korten, D.T.Doherty, B.Bastin, C.Bauer, A.Blazhev, N.Bree, B.Bruyneel, P.A.Butler, J.Butterworth, J.Cederkall, P.Delahaye, A.Dijon, A.Ekstrom, C.Fitzpatrick, C.Fransen, G.Georgiev, R.Gernhauser, H.Hess, J.Iwanicki, D.G.Jenkins, A.C.Larsen, J.Ljungvall, R.Lutter, P.Marley, K.Moschner, P.J.Napiorkowski, J.Pakarinen, A.Petts, P.Reiter, T.Renstrom, M.Seidlitz, B.Siebeck, S.Siem, C.Sotty, J.Srebrny, I.Stefanescu, G.M.Tveten, J.Van de Walle, M.Vermeulen, D.Voulot, N.Warr, F.Wenander, A.Wiens, H.De Witte, K.Wrzosek-Lipska

Low-energy Coulomb excitation of 96, 98Sr beams

NUCLEAR REACTIONS 60Ni, 208Pb(98Sr, 98Sr'), E=276.3 MeV; 109Ag, 120Sn(96Sr, 96Sr'), E=275.5 MeV; measured Eγ, Iγ, scattered Sr ions and target recoils, (particle)γ-coin, γ(θ), differential Coulomb excitation cross sections using Miniball array for γ detection and Si strip detectors for ions at REX-ISOLDE-CERN facility. 96,98Sr; deduced levels, E2 and M1 matrix elements, B(E2) and level half-lives, quadrupole moments and deformation parameters, E0 monopole transition strengths using GOSIA2 analysis. Comparison with previous experimental data and five-dimensional collective Hamiltonian and Gogny D1S force, and using complex excited VAMPIR approach. Systematics of level energies, transitional and spectroscopic quadrupole moments in 94,96Kr, 96,98Sr, 98,100Zr, 100,102Mo. Systematics of energy and B(E2) for first 2+ state, and energies of second 0+ states in 90,92,94,96,98,100,102Sr. 60Ni, 208Pb(98Rb, 98Rb'), E=276 MeV; measured Eγ, Iγ, scattered Rb ions and target recoils, (particle)γ-coin, γ(θ), level half-lives by recoil-distance Doppler shift method. 98Rb; deduced levels.

doi: 10.1103/PhysRevC.94.054326
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2016GO18      Eur.Phys.J. A 52, 202 (2016)

S.Goriely, S.Hilaire, M.Girod, S.Peru

The Gogny-Hartree-Fock-Bogoliubov nuclear-mass model

NUCLEAR STRUCTURE Z=1-107; calculated binding energy, mass excess of nuclei in AME-2013 using Skyrme-HFB with D1S, D1H, D1M interactions.

doi: 10.1140/epja/i2016-16202-3
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2016GO28      Phys.Rev. C 94, 044306 (2016)

S.Goriely, S.Hilaire, S.Peru, M.Martini, I.Deloncle, F.Lechaftois

Gogny-Hartree-Fock-Bogolyubov plus quasiparticle random-phase approximation predictions of the M1 strength function and its impact on radiative neutron capture cross section

NUCLEAR STRUCTURE 58,62,66,70,74,78,80,82,84Ni, 120,124,128,132,136,140,144,148,152,156,160Sn, 92Zr, 106Pd, 198Au, 208Pb, 232Th, 238U, 240Pu; N=6-150, 412 even-even nuclei; calculated B(M1) strengths, centroid M1 energies, integrated B(M1) strengths, M1 photoabsorption σ for 128,134Xe, B(E1) strengths for 232Th and 238U. A=20-250; calculated Γγ for E1 and M1 contributions. Large-scale calculations in the framework of axially-symmetric-deformed quasiparticle random phase approximation (QRPA) based on finite-range D1M Gogny force. Comparison with available experimental data. Analyzed impact on radiative neutron capture cross sections.

doi: 10.1103/PhysRevC.94.044306
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2016HI08      Eur.Phys.J. A 52, 336 (2016)

S.Hilaire, S.Goriely, S.Peru, N.Dubray, M.Dupuis, E.Bauge

Nuclear reaction inputs based on effective interactions

NUCLEAR STRUCTURE A=20-250; calculated s-wave neutron resonance mean spacing using ab initio calculations with BSk9 Skyrme interaction. 240Pu; calculated potential energy surface, quadrupole moment using Gogny-type interaction.

NUCLEAR REACTIONS 235U(n, F), E=0.02-12 MeV; calculated σ using ab initio Skyrme interactions. 40Ca, 48Cr, 89Y, 165Ho, 181Ta, 208Pb, 233Th, 238U, 242Pu(n, x), E=0.01-200 MeV; calculated total reaction σ using JLM approach with D1M nuclear matter densities. Compared with available data.

doi: 10.1140/epja/i2016-16336-2
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2016MA25      Phys.Rev. C 93, 045809 (2016)

J.Mayer, S.Goriely, L.Netterdon, S.Peru, P.Scholz, R.Schwengner, A.Zilges

Partial cross sections of the 92Mo(p, γ) reaction and the γ strength in 93Tc

NUCLEAR REACTIONS 92Mo(p, γ)93Tc, E=3.7-5.3 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, total σ(E) for 93Tc ground state and isomer by in-beam method using HORUS array at Cologne FN tandem accelerator facility. 93Tc; deduced levels, J, π, E1 and M1 γ-strength functions. Comparison with previous experimental data for σ(E), and with Hauser-Feshbach calculations by using statistical model code TALYS using Gogny- or Skyrme-HFB+QRPA E1 strength and shell model M1 strength.

doi: 10.1103/PhysRevC.93.045809
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2016MA43      Phys.Rev. C 94, 014304 (2016)

M.Martini, S.Peru, S.Hilaire, S.Goriely, F.Lechaftois

Large-scale deformed quasiparticle random-phase approximation calculations of the γ-ray strength function using the Gogny force

NUCLEAR STRUCTURE 34S, 70,76Ge, 92Zr, 120Sn, 152Sm, 158Gd, 196Pt, 208Pb, 238U, 240Pu; A=10-250; calculated E1 γ-strength functions, B(E1) distributions in the GDR region. 115,120,125,130,135,140,145,150,155Sn; calculated and comparison E1 strength functions for Sn isotopes obtained with the three prescriptions used to correct the HFB+QRPA model based on D1M force. Self-consistent Hartree-Fock-Bogoliubov (HFB) plus axially symmetric deformed quasiparticle random-phase approximation (QRPA) calculations based on finite-range Gogny interactions D1S and D1M. Comparison with experimental photoabsorption data. Discussed predictions of γ-ray strength functions and Maxwellian-averaged neutron capture rates for Sn isotopes.

NUCLEAR REACTIONS 28Si, 60Ni, 70,74Ge, 76,80Se, 90,94Zr, 90,98Mo, 116,119,120Sn, 124,128Te, 138Ba, 142Ce, 144,148Nd, 144,150,154Sm, 158Gd, 174Yb, 181Ta, 190Os, 206Pb, 232Th, 236,238U, 239Pu(γ, X), E*=5-30 MeV; calculated σ and compared with experimental data near the GDR. Self-consistent Hartree-Fock-Bogoliubov (HFB) plus axially symmetric deformed quasiparticle random-phase approximation (QRPA) calculations based on finite-range Gogny interactions D1S and D1M.

doi: 10.1103/PhysRevC.94.014304
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2016VE06      Phys.Rev. C 94, 044325 (2016)

M.Versteegen, D.Denis-Petit, V.Meot, T.Bonnet, M.Comet, F.Gobet, F.Hannachi, M.Tarisien, P.Morel, M.Martini, S.Peru

Low-energy modification of the γ strength function of the odd-even nucleus 115In

NUCLEAR REACTIONS In, Cu, Au(γ, γ'), (γ, n), E=4.5-18 MeV bremsstrahlung beam from ELSA facility; measured Eγ, Iγ from the decay of 115mIn, 112In, 112mIn, 112Cd, 113mIn, 114In, 114mIn, 62Cu, 196Au radioisotopes formed by (γ, γ'), and (n, n') and (n, γ) reactions from photoneutrons produced in the main reaction; deduced yields of (γ, n) reactions, energy distributions of photoneutrons produced in (γ, n) reactions in natural In sample. 115mIn; deduced yield, σ(E) in (γ, γ') and compared to theoretical calculations using TALYS code with generalized Lorentzian (GLO) for E1 and standard Lorentzian form (SLO) of the Brink-Axel hypothesis for M1 photon strength functions (PSFs). QRPA calculations using the Gogny D1S force. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.94.044325
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2015CO03      Phys.Lett. B 743, 451 (2015)

A.Corsi, S.Boissinot, A.Obertelli, P.Doornenbal, M.Dupuis, F.Lechaftois, M.Matsushita, S.Peru, S.Takeuchi, H.Wang, N.Aoi, H.Baba, P.Bednarczyk, M.Ciemala, A.Gillibert, T.Isobe, A.Jungclaus, V.Lapoux, J.Lee, M.Martini, K.Matsui, T.Motobayashi, D.Nishimura, S.Ota, E.Pollacco, H.Sakurai, C.Santamaria, Y.Shiga, D.Sohler, D.Steppenbeck, R.Taniuchi

Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn

NUCLEAR REACTIONS 1H(104Sn, 104Sn'), E=150 MeV/nucleon; measured reaction products, Eγ, Iγ. 104Sn; deduced σ(θ), energy levels, J, π. QRPA with the D1M Gogny interaction calculations.

doi: 10.1016/j.physletb.2015.03.018
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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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2015LE10      Phys.Rev. C 92, 034315 (2015)

F.Lechaftois, I.Deloncle, S.Peru

Introduction of a valence space in quasiparticle random-phase approximation: Impact on vibrational mass parameters and spectroscopic properties

NUCLEAR STRUCTURE 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138,140,142,144Sn; calculated Bohr Hamiltonian vibrational mass parameters and their convergence scheme, energies of first 2+ and 3- states, B(E2), B(E3). Hartree-Fock-Bogoliubov+quasiparticle random-phase approximation (QRPA) framework with Gogny D1M interaction and using two restrictions: Tamm-Dancoff approximation and the insertion of a valence space.

doi: 10.1103/PhysRevC.92.034315
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2015NY01      Phys.Rev. C 91, 015808 (2015)

H.-T.Nyhus, T.Renstrom, H.Utsunomiya, S.Goriely, D.M.Filipescu, I.Gheorghe, O.Tesileanu, T.Glodariu, T.Shima, K.Takahisa, S.Miyamoto, Y.-W.Lui, S.Hilaire, S.Peru, M.Martini, L.Siess, A.J.Koning

Photoneutron cross sections for neodymium isotopes: Toward a unified understanding of (γ, n) and (n, γ) reactions in the rare earth region

NUCLEAR REACTIONS 143,144,145,146,148Nd(γ, n), E=7.55-13.00 MeV laser Compton scattered (LCS) rays; measured neutron spectra, σ(E) at GACKO (Gamma Collaboration Hutch of Konan University) using SUBARU synchrotron radiation facility; deduced σ(E) for 147Nd(n, γ) by combining present (γ, n) data with existing (n, γ) data for 142,143,144,145,146,148Nd(n, γ), and using γ-SF method. Comparison of σ(E) for 147Nd(n, γ) with JENDL-4.0, ENDF/B-VII.1, and ROSFOND-2010 evaluated libraries. Comparison with predictions of Skyrme-Fock-Bogoliubov (HFB) plus quasiparticle random phase approximation (QRPA) model, and axially symmetric-deformed Gogny HFB plus QRPA model of E1 γ-ray strength using TALYS code. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.91.015808
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2014BA22      Nucl.Data Sheets 118, 32 (2014)

E.Bauge, M.Dupuis, S.Hilaire, S.Peru, A.J.Koning, D.Rochman, S.Goriely

Connecting the Dots, or Nuclear Data in the Age of Supercomputing

NUCLEAR REACTIONS 238U(n, xn), E=14.1 MeV; calculated σ(En, θ=300, σ(En, θ=900 using TMC )TALYS/TEFAL/NJOY) code system. Compared to data.

NUCLEAR STRUCTURE N=4-170; calculated binding energy, Q using beyond-the-mean-field level using different interactions.

doi: 10.1016/j.nds.2014.04.004
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2014FI17      Phys.Rev. C 90, 064616 (2014)

D.M.Filipescu, I.Gheorghe, H.Utsunomiya, S.Goriely, T.Renstrom, H.-T.Nyhus, O.Tesileanu, T.Glodariu, T.Shima, K.Takahisa, S.Miyamoto, Y.-W.Lui, S.Hilaire, S.Peru, M.Martini, A.J.Koning

Photoneutron cross sections for samarium isotopes: Toward a unified understanding of (γ, n) and (n, γ) reactions in the rare earth region

NUCLEAR REACTIONS 144,147,148,149,150,152,154Sm(γ, n), E=6-17 MeV; measured E(n), I(n), monochromatic and nonmonochromatic σ(E). Comparison with previous experimental results, and predictions from Skyrme HFB+QRPA using BSk7 interaction, and axially deformed Gogny HFB+QRPA models using D1M interaction. 147,148,149,150,151,152Sm(n, γ), E=0.001-1 MeV; analyzed measured σ(E) with a TALYS calculation using D1M+QRPA calculation for the E1 strength function. 153Sm(n, γ), E=0.001-1 MeV; predicted σ(E) from TALYS calculations using γ-strength function (γSF) approach. Comparison with evaluated libraries JENDL-4.0, ENDF/B-VII.1, ROSFOND-2010.

doi: 10.1103/PhysRevC.90.064616
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2014MA19      Phys.Rev. C 89, 044306 (2014)

M.Martini, S.Peru, S.Goriely

Gamow-Teller strength in deformed nuclei within the self-consistent charge-exchange quasiparticle random-phase approximation with the Gogny force

NUCLEAR STRUCTURE 90Zr, 114Sn, 208Pb; calculated pnQRPA Fermi and Gamow-Teller (GT) strength distributions, GT widths for Sn isotopes. 76Ge; calculated pnQRPA GT strength distributions as function of deformation. Self-consistent axially symmetric-deformed proton-neutron quasiparticle random-phase approximation (pnQRPA) with the finite-range Gogny force. Analyzed role of deformation. Comparison with experimental data.

RADIOACTIVITY 90,92,94,96,98,100,118Kr, 94,96,98,100,102,104,120Sr, 98,100,102,104,106,108,110,122Zr, 104,106,108,110,112,114,124Mo, 126Ru, 128Pd, 130Cd, 132Sn, 178Te, 180Xe, 182Ba, 184Ce, 186Nd, 188Sm, 190Gd, 192Dy, 194Er, 196Yb, 198Hf, 200W, 202Os, 262Pt, 264Hg, 266Pb, 268Po, 270Rn, 272Ra, 274Th, 276U, 278Pu, 280Cm, 282Cf, 284Fm, 286No(β-); calculated β-decay half-lives. Self-consistent axially symmetric-deformed proton-neutron quasiparticle random-phase approximation (pnQRPA) with the finite-range Gogny (D1M) force. Comparison with experimental data, and with previous theoretical calculations.

doi: 10.1103/PhysRevC.89.044306
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2014MA38      Nucl.Data Sheets 118, 273 (2014)

M.Martini, S.Hilaire, S.Goriely, A.J.Koning, S.Peru

Improved Nuclear Inputs for Nuclear Model Codes Based on the Gogny Interaction

NUCLEAR STRUCTURE 238U; calculated positive parity level density, temperature (and level density for T=0) below 100 MeV.

NUCLEAR REACTIONS 174Yb, 180Hf, 238U(γ, x), E=5-25 MeV; calculated photoabsorption σ using QRPA with broadening. Sn(n, x), E≈90 keV; calculated Maxwell-averaged neutron capture rate for isotopes between 115 and 160 using GLO and QRPA.

doi: 10.1016/j.nds.2014.04.056
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2014MA52      Nucl.Data Sheets 120, 133 (2014)

M.Martini, S.Goriely, S.Peru

Charge-exchange QRPA with the Gogny Force for Axially-symmetric Deformed Nuclei

NUCLEAR STRUCTURE 90Zr, 114Sn, 208Pb, 76Ge; calculated isobaric analog and Gamow-Teller resonances, GT strength distributions. Quasiparticle random-phase approximation (QRPA) calculations using finite range Gogny force.

doi: 10.1016/j.nds.2014.07.027
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2014PE08      Eur.Phys.J. A 50, 88 (2014)

S.Peru, M.Martini

Mean field based calculations with the Gogny force: Some theoretical tools to explore the nuclear structure

NUCLEAR STRUCTURE 32Mg, 44S; calculated potential energy surface, deformation, B(E2), rotational moment of inertia, proton and neutron pairing. 32Mg; calculated low-energy levels, J, π. 42Si, 44S, 46Ar, 48Ca, 50Ti, 52Cr; calculated neutron single-particle states, neutron pairing energy vs deformation, mass excess, B(E2). 24O, 26Ne, 28Mg, 30Si, 32S, 34Ar; calculated neutron single-particle states, neutron pairing energy vs deformation, mass excess, B(E2), B(E3). 58Ar, 60Ca, 62Ti, 64Cr, 66Fe, 68Ni, 70Zn, 72Ge, 74Se, 76Kr, 78Sr, 80Zr, 82Mo; calculated neutron pairing energy vs deformation. 78Ni, 100,132Sn, 208Pb; calculated isoscalar GMR, isovector GDR, isoscalar GQR average energy, fraction of EWSR, total, neutron, charge radii. 24O, 22,24,26,28Mg, 26,28,30Si; calculated monopole, quadrupole giant resonance responses vs energy. 238U; calculated monopole, dipole, quadrupole, octupole resonance responses. 174Yb, 180Hf, 238U; calculated photoabsorption σ vs energy. 56,58,60,62,64,66,68,70,72,74,76,78Ni, 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138,140,142,144,146,148,150,152,154,156,158,160,162,164,166,168,170Sn; calculated HFB energy vs deformation, proton pairing energy vs deformation, B(E2). 5DCH (5-dimensional collective Hamiltonian) with account for triaxiality and vibrations, QRPA, HFB. Compared with available data.

doi: 10.1140/epja/i2014-14088-7
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2014PE21      Phys.Scr. 89, 054030 (2014)

S.Peru, M.Martini

Microscopic mean field approximation and beyond with the Gogny force

NUCLEAR STRUCTURE 24,26,28Mg; calculated B(E0), B(E2) using QRPA. 24O, 26Ne, 28Mg, 30Si, 32S, 34Ar; calculated B(E2), first 2+ state energy using QRPA and using 5DCH (Five Dimension Collective Hamiltonian); compared with data.

doi: 10.1088/0031-8949/89/5/054030
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2013UT02      Phys.Rev. C 88, 015805 (2013)

H.Utsunomiya, S.Goriely, T.Kondo, C.Iwamoto, H.Akimune, T.Yamagata, H.Toyokawa, H.Harada, F.Kitatani, Y.-W.Lui, A.C.Larsen, M.Guttormsen, P.E.Koehler, S.Hilaire, S.Peru, M.Martini, A.J.Koning

Photoneutron cross sections for Mo isotopes: A step toward a unified understanding of (γ, n) and (n, γ) reactions

NUCLEAR REACTIONS 94,95,96,97,98,100Mo(γ, n), E=7.55-13.00 MeV laser Compton scattered (LCS) γ rays; measured neutron spectra, σ(E). Comparison with previous experimental measurements, and with predictions of Skyrme Hartree-Fock-Bogoliubov (HFB) plus quasiparticle random phase approximation (QRPA) model, and axially symmetric-deformed Gogny HFB plus QRPA model of E1 γ-ray strength. 94,95,96,97(n, γ); analyzed σ(E) data by combining data from (γ, n), (γ, γ'), (3He, αγ) and (3He, 3He'γ) experiments. 93,99Mo(n, γ); predicted TALYS σ using (γ, γ') and (3He, 3He'γ) data. Comparison with JENDL-4.0, ENDF/B-VII.1, and ROSFOND-2010 evaluated reaction data files.

doi: 10.1103/PhysRevC.88.015805
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2012DI03      Phys.Rev. C 85, 031301 (2012)

A.Dijon, E.Clement, G.de France, G.de Angelis, G.Duchene, J.Dudouet, S.Franchoo, A.Gadea, A.Gottardo, T.Huyuk, B.Jacquot, A.Kusoglu, D.Lebhertz, G.Lehaut, M.Martini, D.R.Napoli, F.Nowacki, S.Peru, A.Poves, F.Recchia, N.Redon, E.Sahin, C.Schmitt, M.Sferrazza, K.Sieja, O.Stezowski, J.J.Valiente-Dobon, A.Vancraeyenest, Y.Zheng

Discovery of a new isomeric state in 68Ni: Evidence for a highly deformed proton intruder state

NUCLEAR REACTIONS 70Zn(238U, X)67Ni/68Ni/69Ni/69Cu, E=6.33 MeV/nucleon; measured energy loss, particle spectra, time of flight, Eγ, Iγ, (68Ni)γ-coin, delayed γ, half-life; deduced mass spectra. 68Ni; deduced levels, J, π, isomer, configurations, proton intruder state. 69Cu; deduced isomer half-life. VAMOS spectrometer and EXOGAM array at GANIL facility. Comparison with large-scale shell-model (LSSM) calculations.

doi: 10.1103/PhysRevC.85.031301
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2011CL03      Int.J.Mod.Phys. E20, 415 (2011)

E.Clement, G.De France, J.M.Casandjian, A.Gorgen, W.Korten, E.Bouchez, A.Chatillon, A.Hurstel, Y.Le Coz, A.Obertelli, C.Theisen, J.N.Wilson, J.-P.Delaroche, M.Girod, H.Goutte, S.Peru, T.Czosnyka, J.Iwanicki, P.J.Napiorkowski, J.Srebrny, K.Wrzosek-Lipska, M.Zielinska, N.Bree, I.Stefanescu, J.Van De Walle, C.Andreoiu, P.A.Butler, R.-D.Herzberg, D.G.Jenkins, G.D.Jones, A.Petts, F.Becker, J.Gerl, W.N.Catford, C.N.Timis, G.Sletten, G.Georgiev, J.Ljungvall

Experimental measurement of the deformation through the electromagnetic probe: shape coexistence in exotic Kr and Sr isotopes

NUCLEAR REACTIONS 208Pb(72Kr, 72Kr'), (74Kr, 74Kr'), (76Kr, 76Kr'), (78Kr, 78Kr'), E=4.5 MeV/nucleon; 109Ag, 120Sn(96Sr, 96Sr'), E not given; measured reaction products, Eγ, Iγ. 72,74,76,78Kr, 96Sr; deduced static quadrupole moments, B(E2). Comparison with systematics and HFB calculations.

doi: 10.1142/S0218301311017806
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2011LO01      Phys.Lett. B 694, 316 (2011)

R.L.Lozeva, D.L.Balabanski, G.Georgiev, J.-M.Daugas, S.Peru, G.Audi, S.Cabaret, T.Faul, M.Ferraton, E.Fiori, C.Gaulard, F.Ibrahim, P.Morel, L.Risegari, D.Verney, D.T.Yordanov

Quadrupole moment of the 6- isomeric state in 66Cu: Interplay between different nuclear deformation driving forces

NUCLEAR MOMENTS 66Cu [from Cu(d, p), E=6 MeV]; measured quadrupole oscillation frequency; deduced spectroscopic quadrupole moment of the 6- isomeric state, deformation, oblate shape. Comparison with HFB calculations.

doi: 10.1016/j.physletb.2010.10.016
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2011MA18      Phys.Rev. C 83, 034309 (2011)

M.Martini, S.Peru, M.Dupuis

Low-energy dipole excitations in neon isotopes and N = 16 isotones within the quasiparticle random-phase approximation and the Gogny force

NUCLEAR STRUCTURE 24O, 18,20,22,24,26,28,30Ne, 28Mg, 30Si; calculated B(E1) distributions, neutron and proton ground state density profiles, particle-hole configurations and energies for low-energy dipole excitation (GDR), neutron and proton transition densities. Fully consistent axially-symmetric-deformed quasiparticle random phase approximation (QRPA) approach based on Hartree-Fock-Bogolyubov (HFB) states.

doi: 10.1103/PhysRevC.83.034309
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2011PE01      Phys.Rev. C 83, 014314 (2011)

S.Peru, G.Gosselin, M.Martini, M.Dupuis, S.Hilaire, J.-C.Devaux

Giant resonances in 238U within the quasiparticle random-phase approximation with the Gogny force

NUCLEAR STRUCTURE 238U; calculated Kπ=0-, 0+, 1-, 1+ eigenvalues, B(E0), B(E1), B(E2) and B(E3) strengths for dipole, monopole, quadrupole, and octupole giant resonances and low-energy states. Fully consistent microscopic axially-symmetric deformed quasiparticle random-phase approximation (QRPA) approach using a finite-range Gogny force for Hartree-Fock-Bogolyubov mean field and QRPA matrix. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.014314
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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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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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2009GO15      Phys.Rev.Lett. 102, 242501 (2009)

S.Goriely, S.Hilaire, M.Girod, S.Peru

First Gogny-Hartree-Fock-Bogoliubov Nuclear Mass Model

doi: 10.1103/PhysRevLett.102.242501
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2008PE10      Phys.Rev. C 77, 044313 (2008)

S.Peru, H.Goutte

Role of deformation on giant resonances within the quasiparticle random-phase approximation and the Gogny force

NUCLEAR STRUCTURE 26,28,30Si, 22,24,26,28Mg; calculated giant resonance energies, Hartree-Fock-Bogliubov potential energies, neutron and proton pairing energies, fractions of the isovector monopole, dipole and octupole EWSR. QRPA calculations using Gogny DIS effective force for Hartree-Fock-Bogoliubov and QRPA approximations. Comparison with experimental data.

doi: 10.1103/PhysRevC.77.044313
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2008UT02      Phys.Rev.Lett. 100, 162502 (2008)

H.Utsunomiya, S.Goriely, T.Kondo, T.Kaihori, A.Makinaga, S.Goko, H.Akimune, T.Yamagata, H.Toyokawa, T.Matsumoto, H.Harano, S.Hohara, Y.-W.Liu, S.Hilaire, S.Peru, A.J.Koning

M1 γ Strength for Zirconium Nuclei in the Photoneuton Channel

NUCLEAR REACTIONS 91,92,94Zr(γ, n), E not given; measured En, In, cross sections. Compared results to model calculations.

doi: 10.1103/PhysRevLett.100.162502
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2007BE35      Phys.Rev.Lett. 99, 032502 (2007)

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

Systematics of the First 2+ Excitation with the Gogny Interaction

NUCLEAR STRUCTURE A=4-244; calculated excitation energies, B(E2) and transition quadrupole moments using a microscopic theory with Gogny interaction.

doi: 10.1103/PhysRevLett.99.032502
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2007CL02      Phys.Rev. C 75, 054313 (2007)

E.Clement, A.Gorgen, W.Korten, E.Bouchez, A.Chatillon, J.-P.Delaroche, M.Girod, H.Goutte, A.Hurstel, Y.Le Coz, A.Obertelli, S.Peru, Ch.Theisen, J.N.Wilson, M.Zielinska, C.Andreoiu, F.Becker, P.A.Butler, J.M.Casandjian, W.N.Catford, T.Czosnyka, G.de France, J.Gerl, R.-D.Herzberg, J.Iwanicki, D.G.Jenkins, G.D.Jones, P.J.Napiorkowski, G.Sletten, C.N.Timis

Shape coexistence in neutron-deficient krypton isotopes

NUCLEAR REACTIONS 208Pb(74Kr, 74Kr'), E=4.7 MeV/nucleon; 208Pb(76Kr, 76Kr'), E=4.4 MeV/nucleon; measured Eγ, Iγ and angular distributions; 74Kr, 76Kr; deduced level energies, J, π, B(E2), and shape coexistance. Coulomb excitation GOSIA analysis.

doi: 10.1103/PhysRevC.75.054313
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2007PE24      Nucl.Phys. A788, 44c (2007)

S.Peru, H.Goutte, J.F.Berger

Giant and Pygmy Resonances within Axial-deformed QRPA with the Gogny Force

NUCLEAR STRUCTURE 26Ne, 24Mg, 28Si; calculated excited state, GMR, GDR and GQR energies, B(E1), B(E2); deduced subshell gap. Microscopic quasi-particle RPA approach, Gogny force, configuration mixing, comparison with data.

doi: 10.1016/j.nuclphysa.2007.01.047
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2007VE05      Phys.Rev. C 75, 051302 (2007)

N.Vermeulen, S.K.Chamoli, J.M.Daugas, M.Hass, D.L.Balabanski, J.P.Delaroche, F.de Oliveira-Santos, G.Georgiev, M.Girod, G.Goldring, H.Goutte, S.Grevy, I.Matea, P.Morel, B.S.Nara Singh, Yu.-E.Penionzkevich, L.Perrot, O.Perru, S.Peru, O.Roig, F.Sarazin, G.S.Simpson, Yu.Sobolev, I.Stefan, C.Stodel, D.T.Yordanov, G.Neyens

First isomeric quadrupole moment measured in fragmentation reactions: The case of 61Fem(9/2+)

NUCLEAR REACTIONS 9Be(64Ni, X)61Fe, E=64.6 MeV/nucleon; measured Eγ, Iγ and quadrupole moment of the 9/2+ isomeric state using time dependent perturbed angular momentum technique.

doi: 10.1103/PhysRevC.75.051302
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2005OB01      Phys.Rev. C 71, 024304 (2005)

A.Obertelli, S.Peru, J.-P.Delaroche, A.Gillibert, M.Girod, H.Goutte

N = 16 subshell closure from stability to the neutron drip line

NUCLEAR STRUCTURE 22C, 24O, 26Ne, 28Mg, 30Si, 32S, 34Ar; calculated deformation, pairing energies, single-particle energies, first 2+ states energies and B(E2); deduced subshell gap. Mean-field approach, Gogny force, configuration mixing, comparisons with data.

doi: 10.1103/PhysRevC.71.024304
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2005PE21      Eur.Phys.J. A 26, 25 (2005)

S.Peru, J.F.Berger, P.F.Bortignon

Giant resonances in exotic spherical nuclei within the RPA approach with the Gogny force

NUCLEAR STRUCTURE 78Ni, 100,132Sn, 208Pb; calculated giant resonance energies, strength distributions, related features. Gogny force, RPA approach.

doi: 10.1140/epja/i2005-10149-4
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2005PO18      Eur.Phys.J. A 25, 319 (2005)

M.-G.Porquet, S.Peru, M.Girod

Crossing of the πd5/2 and πg7/2 orbitals in the 51Sb isotopes

NUCLEAR STRUCTURE 109,111,113,115,117,119,121,123,125,127,129,131,133Sb; calculated 5/2+ and 7/2+ level energies. 118,120Pd, 120,122Cd, 108,110,112,114,116,118,120,122,124,126,128,130,132Sn, 120,122Te, 122,124Xe; calculated proton d5/2 and g7/2 orbitals binding energies, radii. HFB plus blocking approach, comparison with data.

doi: 10.1140/epja/i2005-10137-8
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2004PE03      Int.J.Mod.Phys. E13, 175 (2004)

S.Peru, J.F.Berger

Giant resonances in exotic spherical nuclei within the HF + RPA approach

NUCLEAR STRUCTURE 78Ni, 100,132Sn; calculated giant resonance strength distributions, related features.

doi: 10.1142/S0218301304001916
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2002LE30      Eur.Phys.J. A 15, 49 (2002)

F.Le Blanc, L.Cabaret, J.E.Crawford, S.Essabaa, V.Fedoseyev, W.Geithner, J.Genevey, M.Girod, R.Horn, G.Huber, S.Kappertz, J.Lassen, J.K.P.Lee, G.Le Scornet, V.Mishin, R.Neugart, J.Obert, J.Oms, A.Ouchrif, S.Peru, J.Pinard, H.Ravn, B.Roussiere, J.Sauvage, D.Verney, and the Isolde Collaboration

Charge radius change in the heavy tin isotopes until A = 132 from laser spectroscopy

NUCLEAR MOMENTS 125,126,127,128,129,130,131,132Sn; measured hfs, isotope shifts, charge radii. Laser spectroscopy, comparison with model predictions.

doi: 10.1140/epja/i2001-10225-9
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2002SO14      Phys.Rev. C 66, 054302 (2002)

D.Sohler, Zs.Dombradi, J.Timar, O.Sorlin, F.Azaiez, F.Amorini, M.Belleguic, C.Bourgeois, C.Donzaud, J.Duprat, D.Guillemaud-Mueller, F.Ibrahim, J.A.Scarpaci, M.Stanoiu, M.J.Lopez, M.G.Saint-Laurent, F.Becker, F.Sarazin, C.Stodel, G.Voltolini, S.M.Lukyanov, V.Maslov, Yu.-E.Penionzhkevich, M.Girod, S.Peru, F.Nowacki, G.Sletten, R.Lucas, C.Theisen, D.Baiborodin, Z.Dlouhy, J.Mrazek, C.Borcea, A.Bauchet, C.J.Moore, M.J.Taylor

Shape evolution in heavy sulfur isotopes and erosion of the N=28 shell closure

NUCLEAR REACTIONS 9Be(48Ca, X)40S/42S/44S, E=60.3 MeV/nucleon; measured Eγ, Iγ, γγ-, (fragment)γ-coin. 40,42,44S deduced levels, J, π, configuration, deformation. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.66.054302
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2000DE33      Eur.Phys.J. A 8, 177 (2000)

I.Deloncle, A.Bauchet, M.-G.Porquet, M.Girod, S.Peru, J.-P.Delaroche, A.Wilson, B.J.P.Gall, F.Hoellinger, N.Schulz, E.Gueorguieva, A.Minkova, T.Kutsarova, Ts.Venkova, J.Duprat, H.Sergolle, C.Gautherin, R.Lucas, A.Astier, N.Buforn, M.Meyer, S.Perries, N.Redon

High-Spin Structure of the Neutron-Rich 44104, 106, 108Ru Isotopes: γ-Vibrational bands and two-quasiparticle excitations

NUCLEAR REACTIONS 176Yb(28Si, X), E=145 MeV; measured Eγ, Iγ, γγ-coin following fission. 104,106,108Ru deduced high-spin levels, J, π, alignments. Comparison with cranked mean-field calculations. Eurogam array.

doi: 10.1007/s100530050024
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2000DE60      Acta Phys.Hung.N.S. 12, 207 (2000)

I.Deloncle, A.Bauchet, M.-G.Porquet, A.Wilson, M.Girod, S.Peru, J.-P.Delaroche, B.J.P.Gall, F.Hoellinger, N.Schulz, E.Gueorguieva, A.Minkova, T.Kutsarova, Ts.Venkova, J.Duprat, H.Sergolle, C.Gautherin, R.Lucas, A.Astier, N.Buforn, M.Meyer, S.Perries, N.Redon

γ-Vibrational Bands and Two-Quasiparticle States in the 102, 104, 106, 108Ru Neutron-Rich Isotopes

NUCLEAR REACTIONS 176Yb(28Si, F)102Ru/104Ru/106Ru/108Ru, E=145 MeV; measured Eγ, Iγ, γγ-coin; deduced production σ. 102,104,106,108Ru deduced high-spin levels, configurations, collective features. Eurogam2 array.


2000PE27      Eur.Phys.J. A 9, 35 (2000)

S.Peru, M.Girod, J.F.Berger

Evolution of the N = 20 and N = 28 Shell Closures in Neutron-Rich Nuclei

NUCLEAR STRUCTURE 30Ne, 32Mg, 34,42Si, 36,44S, 38,46Ar, 40,48Ca, 50Ti, 52Cr; calculated single-particle levels, pairing energies, potential energy vs doeformation; deduced N=20, 28 shell closure features. Gogny effective interaction.

doi: 10.1007/s100500070053
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2000SA58      Hyperfine Interactions 129, 303 (2000)

J.Sauvage, N.Boos, L.Cabaret, J.E.Crawford, H.T.Duong, J.Genevey, M.Girod, G.Huber, F.Ibrahim, M.Krieg, F.Le Blanc, J.K.P.Lee, J.Libert, D.Lunney, J.Obert, J.Oms, S.Peru, J.Pinard, J.C.Putaux, B.Roussiere, V.Sebastian, D.Verney, S.Zemlyanoi, J.Arianer, N.Barre, M.Ducourtieux, D.Forkel-Wirth, G.Le Scornet, J.Lettry, C.Richard-Serre, C.Veron, and the ISOLDE Collaboration

COMPLIS experiments: Collaboration for spectroscopy Measurements using a Pulsed Laser Ion Source

NUCLEAR MOMENTS 182,183,184,185,186,187,188,189,191,193Ir, 179,181,183,183m,185,185m,187,189Pt, 184,184m,191,193,195Au; measured hfs, isotope shifts by Resonance Ionization Spectroscopy (RIS); deduced μ, quadrupole moments, and changes in mean square charge radii, deformation parameter. Comparisons with model calculations.

doi: 10.1023/A:1012618001695
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1999LE52      Phys.Rev. C60, 054310 (1999)

F.Le Blanc, D.Lunney, J.Obert, J.Oms, J.C.Putaux, B.Roussiere, J.Sauvage, S.Zemlyanoy, J.Pinard, L.Cabaret, H.T.Duong, G.Huber, M.Krieg, V.Sebastian, J.E.Crawford, J.K.P.Lee, M.Girod, S.Peru, J.Genevey, J.Lettry, and the ISOLDE Collaboration

Large Odd-Even Radius Staggering in the Very Light Platinum Isotopes from Laser Spectroscopy

NUCLEAR MOMENTS 179,181,183,183m,185,185mPt; measured hfs, μ, relative charge radii. 183m,185Pt measured quadrupole deformation, triaxiality. Laser spectroscopy. Comparison with Hartree-Fock-Bogoliubov calculations.

doi: 10.1103/PhysRevC.60.054310
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1999RO28      Bull.Rus.Acad.Sci.Phys. 63, 734 (1999)

B.Roussiere, L.Cabaret, J.Crawford, H.T.Duong, J.Genevey, M.Girod, G.Huber, F.Ibrahim, M.Krieg, F.Le Blanc, J.K.P.Lee, J.Obert, J.Oms, S.Peru, J.Pinard, J.C.Putaux, J.Sauvage, V.Sebastian, S.Zemlyanoy, D.Forkel-Wirth, J.Lettry, and the ISOLDE Collaboration

Nuclear Moments and Deformation Changes in the Lightest Pt Isotopes Measured by Laser Spectroscopy

NUCLEAR MOMENTS 178,179,180,181,182,183m,183g,185m,185gPt; measured hyperfine spectrum; deduced μ, quadrupole moment, mean square charge radius variations, deformation. Comparison with N=105 isotones, Hartree-Fock-Bogoliubov calculations. Laser spectroscopy.


1998GA12      Eur.Phys.J. A 1, 391 (1998)

C.Gautherin, M.Houry, W.Korten, Y.Le Coz, R.Lucas, X.H.Phan, Ch.Theisen, Ch.Badimon, G.Barreau, T.P.Doan, G.Pedemey, G.Belier, M.Girod, V.Meot, S.Peru, A.Astier, L.Ducroux, M.Meyer, N.Redon

New Isomeric States in 152,154,156Nd Produced by Spontaneous Fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-, (fragment)γ-coin, (fragment)γ(t). 152,154,156Nd, 156,158Sm deduced levels, J, π, isomeric states T1/2. Potential energy surface, shell-model calculations.

doi: 10.1007/s100500050074
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1997GI06      Z.Phys. A358, 177 (1997)

M.Girod, J.P.Delaroche, J.F.Berger, S.Peru, J.Libert

Microscopic Descriptions of Collective SD Bands in the A = 190 Mass Rgion with the Gogny Force

NUCLEAR STRUCTURE 190,192,194Hg, 194Pb; calculated yrast superdeformed bands moments of inertia. 194Pb calculated excited superdeformed bands. HFB, generator coordinate method, Gaussian overlap approximation, Gogny force.

doi: 10.1007/s002180050298
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