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NSR database version of April 26, 2024.

Search: Author = G.Fremont

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2022JH01      Phys.Rev. C 106, 044607 (2022)

A.Jhingan, C.Schmitt, A.Lemasson, S.Biswas, Y.H.Kim, D.Ramos, A.N.Andreyev, D.Curien, M.Ciemala, E.Clement, O.Dorvaux, B.De Canditiis, F.Didierjean, G.Duchene, J.Dudouet, J.Frankland, G.Fremont, J.Goupil, B.Jacquot, C.Raison, D.Ralet, B.-M.Retailleau, L.Stuttge, I.Tsekhanovich, A.V.Andreev, S.Goriely, S.Hilaire, J.-F.Lemaitre, P.Moller, K.-H.Schmidt

¹⁷⁸Hg and asymmetric fission of neutron-deficient pre-actinides

NUCLEAR REACTIONS ⁵⁴Fe(¹²⁴Xe, X)¹⁷⁸Hg; E=4.3 MeV/nucleon; measured reaction products, fission fragments, (fragment)(fragment)-coin; deduced total kinetic energy distribution, post-neutron (after neutron emission) and pre-neutron (before emission) mass distribution. Comparison to other experimental data in particular with ¹⁸⁰Hg and ¹⁷⁸Pt fission. Obtained pre-neutron mass-distribution is compared with four different calculations: the dynamical Brownians%hape motion (BSM) model, the microscopic scission point model (SPY2), the improved macromicroscopic scission point model (SPM), and the semiempirical GEneral Fission (GEF) model. VAMOS++ heavy-ion magnetic spectrometer with new SEcond Detection (SED) arm for coincident pair fragment detection at GANIL.

doi: 10.1103/PhysRevC.106.044607
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2021AS10      Nucl.Instrum.Methods Phys.Res. A1014, 165743 (2021)

M.Assie, E.Clement, A.Lemasson, D.Ramos, A.Raggio, I.Zanon, F.Galtarossa, C.Lenain, J.Casal, F.Flavigny, A.Matta, D.Mengoni, D.Beaumel, Y.Blumenfeld, R.Borcea, D.Brugnara, W.Catford, F.de Oliveira, F.Delaunay, N.De Sereville, F.Didierjean, C.Aa.Diget, J.Dudouet, B.Fernandez-Dominguez, C.Fougeres, G.Fremont, V.Girard Alcindor, A.Giret, A.Goasduff, A.Gottardo, J.Goupil, F.Hammache, P.R.John, A.Korichi, L.Lalanne, S.Leblond, A.Lefevre, F.Legruel, L.Menager, B.Million, C.Nicolle, F.Noury, E.Rauly, K.Rezynkina, E.Rindel, J.S.Rojo, M.Siciliano, M.Stanoiu, I.Stefan, L.Vatrinet

The MUGAST-AGATA-VAMOS campaign: Set-up and performances

NUCLEAR REACTIONS ²H(¹⁶O, p), E=6 MeV/nucleon; ²H(¹⁹O, p), E not given; ⁷Li(¹⁵O, t), E not given; measured reaction products, Eγ, Iγ, γ-γ-γ-coin. ^17,20O, ¹⁹Ne; deduced γ-ray energies, σ(θ) for the 1/2⁺ state in ¹⁷O. Correction from Doppler effect, VAMOS spectrometer, SPIRAL1 facility.

doi: 10.1016/j.nima.2021.165743
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2021FE09      Phys.Rev. C 104, 054316 (2021)

A.Fernandez, A.Jungclaus, P.Golubev, D.Rudolph, L.G.Sarmiento, A.Gargano, H.Naidja, A.Astier, E.Dupont, A.Gadea, E.Nacher, A.Perea, K.Wimmer, E.Clement, G.Fremont, J.Goupil, C.Houarner, B.Jacquot, A.Korichi, A.Lemasson, H.J.Li, J.Ljungvall, L.Menager, R.M.Perez-Vidal, C.M.Petrache, D.Ralet, J.A.Ropert, F.Saillant, A.Saamark-Roth, G.S.Simpson, C.Spitaels, M.Zielinska, S.Ansari, J.Dudouet, A.Illana, M.Jurado, D.Kocheva, N.Lalovic, Ch.Lorenz, B.Quintana, G.Rainovski, N.Redon, G.Tocabens, D.Barrientos, G.Benzoni, B.Birkenbach, A.J.Boston, H.C.Boston, A.Bracco, M.Ciemala, J.Collado, D.M.Cullen, C.Domingo-Pardo, J.Eberth, V.Gonzalez, L.J.Harkness-Brennan, H.Hess, D.S.Judson, W.Korten, S.Leoni, A.Maj, R.Menegazzo, D.Mengoni, C.Michelagnoli, B.Million, D.R.Napoli, J.Nyberg, Zs.Podolyak, A.Pullia, P.Reiter, E.Sanchis, O.Stezowski, Ch.Theisen, J.J.Valiente-Dobon

Reinterpretation of excited states in ²¹²Po: Shell-model multiplets rather than α-cluster states

NUCLEAR REACTIONS ¹²C(²⁰⁸Pb, ²¹²Po)⁸Be, E=1187 MeV; measured Eγ, Iγ, (particle)γ-coin, (particle)γγ-coin, γγ(linear polarization) using 35 36-fold segmented AGATA crystals arranged in 12 triple clusters for γ detection and double-sided silicon strip detector (DSSSD) for particle detection. ²¹²Po; deduced levels, J, π, multipolarities, configurations, exclusive reaction cross sections. Comparisons with shell-model calculations, with structure of ¹⁴⁸Gd, and with earlier experimental results. Discussed previous interpretation as α-cluster states.

NUCLEAR STRUCTURE ²¹²Po; calculated levels, J, π, configurations, γ-ray branching ratios, B(M1), B(E2), wave-function decomposition for the yrast and yrare states using shell model with KHPE and H208 interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.054316
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2020BA52      Phys.Rev. C 102, 044329 (2020)

R.Banik, S.Bhattacharyya, M.Rejmund, A.Lemasson, S.Biswas, A.Navin, Y.H.Kim, C.Michelagnoli, I.Stefan, P.Bednarczyk, S.Bhattacharya, E.Clement, H.L.Crawford, G.de France, P.Fallon, G.Fremont, J.Goupil, B.Jacquot, H.J.Li, J.Ljungvall, A.Maj, L.Menager, V.Morel, G.Mukherjee, R.Palit, R.M.Perez-Vidal, J.Ropert, C.Schmitt

High-spin states above the isomers in neutron-rich iodine nuclei near N = 82

NUCLEAR REACTIONS ⁹Be(²³⁸U, F), E=6.2 MeV/nucleon; measured fission fragments using the VAMOS++ magnetic spectrometer and dual position-sensitive multiwire proportional counter (DPS-MWPC) at GANIL, Eγ, Iγ, prompt γγ-coin, (prompt γ)(delayed γ)-coin, (delayed γ)(delayed γ)-coin, half-lives of the isomers in ¹³¹I, ¹³²I and ¹³³I by γ(t) using AGATA array with 32 segmented HPGe detectors and seven EXOGAM segmented clover detectors for γ detection. ^{130,131,132,133,134}I; deduced high-spin levels, J, π, isomers, configurations. Comparisons with large-scale shell-model calculations using the code NUSHELLX. Systematics of experimental energy differences for the lowest states in odd-N isotopes of Sn, Sb, Te and I.

NUCLEAR STRUCTURE ^{130,131,132,133,134}I; calculated levels, J, π, probability of neutron hole occupancies in the νh_11/2 orbital as a function of the total spin of negative parity states, and average spin contributions of proton and neutrons to the total spin of the negative parity states using large-scale shell-model calculations with the code NUSHELLX. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.044329
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2020BI06      Phys.Rev. C 102, 014326 (2020)

S.Biswas, A.Lemasson, M.Rejmund, A.Navin, Y.H.Kim, C.Michelagnoli, I.Stefan, R.Banik, P.Bednarczyk, S.Bhattacharya, S.Bhattacharyya, E.Clement, H.L.Crawford, G.de France, P.Fallon, G.Fremont, J.Goupil, B.Jacquot, H.J.Li, J.Ljungvall, A.Maj, L.Menager, V.Morel, R.Palit, R.M.Perez-Vidal, J.Ropert

Prompt-delayed γ-ray spectroscopy of neutron-rich ^{119, 121}In isotopes

NUCLEAR REACTIONS ⁹Be(²³⁸U, F), E=6.2 MeV/nucleon; measured Eγ, Iγ, γγ-coin, fission fragments, (fragment)γ-coin, half-lives of isomers by γ(t) using AGATA and EXOGAM detector arrays for prompt and delayed γ detection and the VAMOS++ spectrometer for fission fragment identification at GANIL. ^119,121In; deduced high-spin levels, J, π, configurations, B(E2). Comparison with large-scale shell-model calculations. Systematics of B(E2) values for 25/2+ to 21/2+ transitions in odd-A In isotopes.

NUCLEAR STRUCTURE ^{119,121,123,125,127,129}In, ^{121,123,125,127,129,131}Sb; calculated high-spin levels, J, π, probabilities for the neutron angular momentum and neutron seniority using large-scale shell-model.

doi: 10.1103/PhysRevC.102.014326
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2019BI04      Phys.Rev. C 99, 064302 (2019)

S.Biswas, A.Lemasson, M.Rejmund, A.Navin, Y.H.Kim, C.Michelagnoli, I.Stefan, R.Banik, P.Bednarczyk, S.Bhattacharya, S.Bhattacharyya, E.Clement, H.L.Crawford, G.de France, P.Fallon, G.Fremont, J.Goupil, B.Jacquot, H.J.Li, J.Ljungvall, A.Maj, L.Menager, V.Morel, R.Palit, R.M.Perez-Vidal, J.Ropert, D.Barrientos, G.Benzoni, B.Birkenbach, A.J.Boston, H.C.Boston, B.Cederwall, J.Collado, D.M.Cullen, P.Desesquelles, C.Domingo-Pardo, J.Dudouet, J.Eberth, V.Gonzalez, L.J.Harkness-Brennan, H.Hess, A.Jungclaus, W.Korten, M.Labiche, A.Lefevre, R.Menegazzo, D.Mengoni, B.Million, D.R.Napoli, A.Pullia, B.Quintana, D.Ralet, F.Recchia, P.Reiter, F.Saillant, M.D.Salsac, E.Sanchis, O.Stezowski, Ch.Theisen, J.J.Valiente-Dobon, M.Zielinska

Effects of one valence proton on seniority and angular momentum of neutrons in neutron-rich ^122-131₅₁Sb isotopes

NUCLEAR REACTIONS ⁹Be(²³⁸U, F)¹²²Sb/¹²³Sb/¹²⁴Sb/¹²⁵Sb/¹²⁶Sb/¹²⁷Sb/¹²⁸Sb/¹²⁹Sb/¹³⁰Sb/¹³¹Sb, E=6.2 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ- and (fragment)γ-coin, T_1/2 of isomers by γγ(t) using the VAMOS++ spectrometer for fragment identification and the AGATA array with EXOGAM detectors for γ detection at GANIL. ^{122,123,124,125,126,127,128,129,130,131}Sb; deduced levels, J, π, isomers, bands, and B(E2). Systematics of excitation energies and B(E2) values in ^{118,119,120,121,122,123,124,125,126,127,128,129,130}Sn, ^{121,122,123,124,125,126,127,128,129,130,131}Sb. Comparison with shell model calculations. Discussed neutron-neutron and neutron-proton interactions, and neutron seniority mixings.

doi: 10.1103/PhysRevC.99.064302
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2017FO24      Phys.Rev. C 96, 065501 (2017)

C.Fontbonne, P.Ujic, F.de Oliveira Santos, X.Flechard, F.Rotaru, N.L.Achouri, V.Girard Alcindor, B.Bastin, F.Boulay, J.B.Briand, A.M.Sanchez-Benitez, H.Bouzomita, C.Borcea, R.Borcea, B.Blank, B.Carniol, I.Celikovic, P.Delahaye, F.Delaunay, D.Etasse, G.Fremont, G.de France, J.M.Fontbonne, G.F.Grinyer, J.Harang, J.Hommet, A.Jevremovic, M.Lewitowicz, I.Martel, J.Mrazek, M.Parlog, J.Poincheval, D.Ramos, C.Spitaels, M.Stanoiu, J.C.Thomas, D.Toprek

High precision measurement of the ¹⁹Ne β-decay half-life using real-time digital acquisition

RADIOACTIVITY ¹⁹Ne(EC), (β⁺)[from C(²⁰Ne, ¹⁹Ne), E=95 MeV/nucleon in the GANIL target-ECR source]; measured Eβ, Iβ using plastic scintillators, precise half-life of the decay of ¹⁹Ne. Comparison with previous measurements.

doi: 10.1103/PhysRevC.96.065501
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Data from this article have been entered in the XUNDL database. For more information, click here.

2014PL01      Phys.Rev. C 89, 021302 (2014)

C.Plaisir, L.Gaudefroy, V.Meot, A.Blanc, J.M.Daugas, O.Roig, N.Arnal, T.Bonnet, F.Gobet, F.Hannachi, M.Tarisien, M.Versteegen, T.Roger, M.Rejmund, A.Navin, C.Schmitt, G.Fremont, J.Goupil, J.Pancin, C.Spitaels, M.Zielinska

In-flight fast-timing measurements in ¹⁵²Sm

NUCLEAR REACTIONS ¹⁵²Sm(¹³⁶Xe, ¹⁵²Sm'), E=5.09 MeV/nucleon; measured time-of-flight of recoiling nuclei using VAMOS spectrometer, Eγ, Iγ, γγ-coin level half-lives by in-flight fast-timing (IFFT) technique using LaBr₃ detectors at GANIL facility. Coulomb excitation. ¹⁵²Sm; deduced levels, J, π, transition quadrupole moments from level half-lives of ground-state band members. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.89.021302
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2012GA45      Phys.Rev.Lett. 109, 202503 (2012)

L.Gaudefroy, W.Mittig, N.A.Orr, S.Varet, M.Chartier, P.Roussel-Chomaz, J.P.Ebran, B.Fernandez-Dominguez, G.Fremont, P.Gangnant, A.Gillibert, S.Grevy, J.F.Libin, V.A.Maslov, S.Paschalis, B.Pietras, Yu.-E.Penionzhkevich, C.Spitaels, A.C.C.Villari

Direct Mass Measurements of ¹⁹B, ²²C, ²⁹F, ³¹Ne, ³⁴Na and Other Light Exotic Nuclei

ATOMIC MASSES ¹⁹B, ^20,22C, ^22,23N, ^27,29F, ^30,31Ne, ^33,34Na, ^43,44S, ^45,46Cl, ⁴⁷Ar; measured TOF for reaction products; deduced masses, two-neutron separation energies, matter radii, Borromean systems. Comparison with available data.

doi: 10.1103/PhysRevLett.109.202503
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