NSR Query Results
Output year order : Descending NSR database version of April 24, 2024. Search: Author = G.S.Simpson Found 147 matches. Showing 1 to 100. [Next]2023BR09 Eur.Phys.J. A 59, 199 (2023) F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, J.G.Li, G.Lorusso, P.-A.Soderstrom, P.M.Walker, H.Watanabe, F.R.Xu, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland Interpretation of metastable states in the N > 70 Zr region RADIOACTIVITY 111Zr, 112,113Nb, 115Mo, 108,109Nb, 113Tc, 117,119Ru, 120,122Rh(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, T1/2, decay schemes. Comparison with calculations. The Radioactive Isotope Beam Factory, operated by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.
doi: 10.1140/epja/s10050-023-01103-7
2023RZ01 Phys.Rev. C 108, 014324 (2023) T.Rzaca-Urban, W.Urban, A.Blanc, M.Jentschel, P.Mutti, U.Koster, G.de France, G.S.Simpson, C.A.Ur Low-spin excitations in 95Zr NUCLEAR REACTIONS 94Zr(n, γ), 235U(n, F)95Zr, E=cold neutrons; measured Eγ, Iγ γγ-coin, γγγ-coin, γγ(θ). 95Zr; deduced levels, J, π, transition intensities, γ-transition branchings, angular correlation coefficients. Comparison of low-spin excitations of 94Zr, 95Zr, 96Zr, 97Zr. EXILL array of 16 large HPGe detectors at the PF1B facility of ILL-Grenoble. RADIOACTIVITY 95Y(β-)[from 235U(n, F), E=cold neutrons]; measured Eγ, Iγ γγ-coin, γγγ-coin, γγ(θ). 95Zr; deduced levels, J, π, transition intensities, γ-transition branchings, angular correlation coefficients. EXILL array of 16 large HPGe detectors at the PF1B facility of ILL-Grenoble.
doi: 10.1103/PhysRevC.108.014324
2023WI04 Phys.Rev. C 108, 024302 (2023) J.Wisniewski, W.Urban, T.Rzaca-Urban, K.Sieja, A.Blanc, M.Jentschel, C.Micheagnoli, P.Mutti, U.Koster, G.de France, G.S.Simpson, C.A.Ur Structure of N=56 isotones with 36 ≤ Z ≤ 42 protons NUCLEAR REACTIONS 235U(n, F)92Kr/96Zr, E = thermal; 97Mo(n, γ), E = thermal; measured Eγ, Iγ, γγ-coin, γγ(θ). 92Kr, 96Zr, 98Mo; deduced levels, J, π, angular correlation coefficients, linear polarization, high-spin states, δ, configurations. 92Kr; calculated occupation of neutron and proton orbitals. Systematics of low-spin level structures for N=56 isotones (Se, Kr, Sr, Zr, Mo, Ru, Pd). Comparison to large-scale shell-model (LSSM) calculations for 92Kr. EXILL array of 16 large Ge detectors including eight clover detectors in one plane with an octagonal geometry was used for experiment in which 92Kr and 96Zr were measured, while for 98Mo - FIPPS array of 8 HPGe detectors mounted in an octagonal geometry was used.
doi: 10.1103/PhysRevC.108.024302
2022KU09 Phys.Rev. C 105, 034316 (2022) J.Kurpeta, A.Abramuk, T.Rzaca-Urban, W.Urban, L.Canete, T.Eronen, S.Geldhof, M.Gierlik, J.P.Greene, A.Jokinen, A.Kankainen, I.D.Moore, D.A.Nesterenko, H.Penttila, I.Pohjalainen, M.Reponen, S.Rinta-Antila, A.de Roubin, G.S.Simpson, A.G.Smith, M.Vilen β- and γ-spectroscopy study of 119Pd and 119Ag RADIOACTIVITY 119,119mPd(β-)[from 253U(p, F), E=25 MeV]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin, γγ∓coin; deduced β-branching ratios, logft, T1/2. 252Cf(SF); measured Eγ, Iγ, γ(θ), γγγ-coin. 119Pd; levels, J, π, T1/2 for ground state and proposed 11/2- isomer. 119Ag; deduced levels, J, π, multipolarities, ICC, δ, structure of rotational band. Discovered 2 separate bands in 119Ag possibly feeded by 2 different β-decaying states in 119Pd. Systematics of low-energy excitations in odd-A isotopes of Rh, Ag, In, and selected low-energy levels in odd-A nuclei of cadmium (109Cd, 111Cd, 113Cd, 115Cd, 117Cd, 119Cd, 121Cd, 123Cd), the isotones of palladium. Isotopes of 119Pd were separated and purified using IGISOL technique and JYFLTRAP Penning trap. Gammas from 252Cf spontaneous fission were measured with Gammasphere array at ANL.
doi: 10.1103/PhysRevC.105.034316
2022KU31 Phys.Rev. C 106, 034306 (2022) D.Kumar, T.Bhattacharjee, S.S.Alam, S.Basak, L.Gerhard, L.Knafla, A.Esmaylzadeh, M.Ley, F.Dunkel, K.Schomaker, J.-M.Regis, J.Jolie, Y.H.Kim, U.Koster, G.S.Simpson, L.M.Fraile Lifetimes and transition probabilities for low-lying yrast levels in 130, 132Te RADIOACTIVITY 130,132Sb(β-); 130m,132mTe(IT) [from 233U(n, γ), E=thermal, followed by mass-separation of fission fragments by the Lohengrin separator at Institut Laue-Langevin, Grenoble]; measured Eγ, Iγ, γγ-coin, isomer and level T1/2 by γ(t) and γγ(t) fast-timing method using four LaBr3(Ce) detectors and two Clover HPGe detectors, and analyzed using generalized centroid difference (GCD) method, and by slope method. 130,132Te; deduced levels, T1/2 of levels and isomers, B(E2) for yrast members of the g.s. bands up to 10+, configurations. Comparison with large-basis shell model calculations, and with previous experimental results. Systematics of B(E2) values for g.s. band members up to 10+ for 126,128,130,132,134Te.
doi: 10.1103/PhysRevC.106.034306
2021DA15 Phys.Rev. C 104, 024321 (2021) J.M.Daugas, B.Rosse, D.L.Balabanski, D.Bucurescu, S.Kisyov, P.H.Regan, G.Georgiev, L.Gaudefroy, K.Gladnishki, V.Meot, P.Morel, S.Pietri, O.Roig, G.S.Simpson Magnetic moment of the 11/2- isomeric state in 99Mo and neutron spin g factor quenching in A ≈ 100 nuclei NUCLEAR MOMENTS 99mMo; measured Eγ, Iγ, γ(θ), Larmor precession, g factor of the 11/2- isomeric state at 684 keV using time-dependent perturbed angular distribution (TDPAD) method, and half-life of the decay of the isomer by γ(t) at the tandem accelerator of the CEA Bruyeres le Chatel; deduced magnetic dipole moment, configuration. Comparison with multishell Interacting boson-fermion model (IBFM-1) calculations. 99mMo produced in 98Mo(d, p), E=6 MeV reaction. NUCLEAR STRUCTURE 99Mo; calculated levels, J, π, configurations, magnetic moments and g-factor quenching using Interacting boson-fermion model (IBFM-1), and ODDA, PBEM, and SPEC computer codes. Comparison with experimental data.
doi: 10.1103/PhysRevC.104.024321
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
2021MA62 Phys.Lett. B 820, 136569 (2021) K.R.Mashtakov, V.Yu.Ponomarev, M.Scheck, S.W.Finch, J.Isaak, M.Zweidinger, O.Agar, C.Bathia, T.Beck, J.Beller, M.Bowry, R.Chapman, M.M.R.Chishti, U.Friman-Gayer, L.P.Gaffney, P.E.Garrett, E.T.Gregor, J.M.Keatings, U.Koster, B.Loher, A.D.MacLean, D.O'Donnell, H.Pai, N.Pietralla, G.Rainovski, M.Ramdhane, C.Romig, G.Rusev, D.Savran, G.S.Simpson, J.Sinclair, K.Sonnabend, P.Spagnoletti, A.P.Tonchev, W.Tornow Structure of high-lying levels populated in the 96Y → 96Zr β decay RADIOACTIVITY 96Y(β-) [from 235U(n, F), E thermal]; measured decay products, Eγ, Iγ, Eβ, Iβ; deduced γ-ray energies, B(E1), branching ratios, Gamow-Teller transition probabilities B(GT). Quasiparticle Phonon Model. Institut Laue Langevin (ILL), LOHENGRIN separator.
doi: 10.1016/j.physletb.2021.136569
2021MO10 Phys.Rev. C 103, 034320 (2021) B.Moon, A.Jungclaus, H.Naidja, A.Gargano, R.Lozeva, C.-B.Moon, A.Odahara, G.S.Simpson, S.Nishimura, F.Browne, P.Doornenbal, G.Gey, J.Keatings, G.Lorusso, Z.Patel, S.Rice, M.Si, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.Taprogge, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, S.Bonig, R.Daido, J.M.Daugas, F.Didierjean, F.Drouet, Y.Fang, N.Fukuda, R.Gernhauser, B.Hong, E.Ideguchi, S.Ilieva, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kroll, T.Kubo, N.Kurz, Y.K.Kwon, C.S.Lee, P.Lee, Z.Li, A.Montaner-Piza, S.Morimoto, K.Moschner, D.Mucher, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, R.Orlandi, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, K.Tshoo, Zs.Vajta, A.Wendt, R.Yokoyama, K.Yoshinaga Nuclear structure of Te isotopes beyond neutron magic number N = 82 RADIOACTIVITY 137,138Sb(β-), (β-n), (β-2n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fragments using BigRIPS and Zero-Degree spectrometer at RIBF-RIKEN facility]; measured yields of 137Sb 138Sb, Eγ, Iγ, γγ-coin, half-lives of decays of ground states of 137Sb and 138Sb using WAS3ABi detection system and EURICA array for γ rays. 135,136,137,138Te; deduced levels, J, π, β-, β-n and β-2n feedings, logft values. Systematics of energies of excited states in the Z=52-64(even) and N=85 isotones. Comparison with large-scale shell-model calculations. NUCLEAR STRUCTURE 137,138Te; calculated levels, J, π, one-neutron spectroscopic factors for 137Te, B(E2), spectroscopic quadrupole moments and g factors for levels in 138Te using large-scale shell-model, with Napoli and N3LOP interactions. Comparison with experimental data.
doi: 10.1103/PhysRevC.103.034320
2021NY01 Phys.Rev. C 103, 034304 (2021) B.M.Nyako, J.Timar, M.Csatlos, Zs.Dombradi, A.Krasznahorkay, I.Kuti, D.Sohler, T.G.Tornyi, M.Czerwinski, T.Rzaca-Urban, W.Urban, P.Baczyk, L.Atanasova, D.L.Balabanski, K.Sieja, A.Blanc, M.Jentschel, U.Koster, P.Mutti, T.Soldner, G.de France, G.S.Simpson, C.A.Ur Medium-spin states of the neutron-rich nucleus 87Br NUCLEAR REACTIONS 235U(n, F), E=cold neutrons; measured Eγ, Iγ, γγ-coin, (γ rays from complementary fission fragments of 146,147La)γγ-coin, γγ(θ) using EXILL array of Ge detectors at the PF1B facility of ILL-Grenoble. 87Br; deduced high-spin levels, J, π, bands, γ-ray branching ratios, multipolarities, mixing ratios, configurations; calculated levels, J, π, bands, proton and neutron occupations of excited states using shell-model. Comparison of 9/2+ band in 87Br with g.s. bands of 86Se and 88Kr.
doi: 10.1103/PhysRevC.103.034304
2021NY02 Phys.Rev. C 104, 054305 (2021) B.M.Nyako, J.Timar, M.Csatlos, Zs.Dombradi, A.J.Krasznahorkay, I.Kuti, D.Sohler, T.G.Tornyi, M.Czerwinski, T.Rzaca-Urban, W.Urban, L.Atanasova, D.L.Balabanski, K.Sieja, A.Blanc, G.de France, M.Jentschel, U.Koster, P.Mutti, G.S.Simpson, T.Soldner, C.A.Ur Observation of excited states in the neutron-rich nucleus 89Br NUCLEAR REACTIONS 235U(n, F), E=cold neutrons; measured Eγ, Iγ, γγ-coin, (γ rays from complementary fission fragments 144,145La)γγ-coin, using EXILL array of Ge detectors at the PF1B facility of ILL-Grenoble. 89Br; deduced high-spin levels, J, π, g9/2 band, γ-ray branching ratios for one level, configurations, evolution of collectivity in this mass region. Comparison with large valence-space shell-model calculations, and with experimental levelstructure in 87Br investigated by 2021Ny01: Phys. Rev. C 103, 034304. 144,145La; observed γ rays.
doi: 10.1103/PhysRevC.104.054305
2021SE17 Phys.Rev. C 104, 024317 (2021) S.Sekal, L.M.Fraile, R.Lica, M.J.G.Borge, W.B.Walters, A.Aprahamian, C.Benchouk, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, D.G.Ghita, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, H.Mach, N.Marginean, R.Marginean, Z.Meliani, B.Olaizola, V.Paziy, J.M.Regis, M.Rudigier, T.Sava, G.S.Simpson, M.Stanoiu, L.Stroe Low-spin states in 80Ge populated in the β decay of the 80Ga 3- isomer RADIOACTIVITY 80mGa(β-)[from decay of 80Zn produced in U(n, F), E=fast neutrons at the ISOLDE-CERN facility, followed by separation of fission fragments passed using the ISOLDE Resonance Ionization Laser Ion Source (RILIS) and high-resolution magnetic separator]; measured Eγ, Iγ, βγ- and γγ-coin using two HPGe detectors for γ rays and an NE111A organic plastic scintillator for β detection. 80Ge; deduced levels, J, π, β feedings, logft. Comparison with previous experimental results, and with shell-model and IBM calculations. NUCLEAR STRUCTURE 70,72,74,76,78,80,82Ge, 82Se, 84Kr, 86Sr, 88Zr, 90Mo; calculated energies of second 0+ states by shell-model using Antoine code with JUN45 interaction, and NUSHELLX@MSU code with jj44bpn interaction, and IBM-1, IBM-2 models, and comparison with experimental values; Systematics of low-lying positive-parity levels up to 8+.
doi: 10.1103/PhysRevC.104.024317
2021SU01 Phys.Rev. C 103, 014614 (2021) T.Sumikama, N.Fukuda, N.Inabe, D.Kameda, T.Kubo, Y.Shimizu, H.Suzuki, H.Takeda, K.Yoshida, H.Baba, F.Browne, A.M.Bruce, R.Carroll, N.Chiga, R.Daido, F.Didierjean, P.Doornenbal, Y.Fang, G.Gey, E.Ideguchi, T.Isobe, S.Lalkovski, Z.Li, G.Lorusso, R.Lozeva, H.Nishibata, S.Nishimura, I.Nishizuka, A.Odahara, Z.Patel, Zs.Podolyak, P.H.Regan, S.Rice, O.J.Roberts, H.Sakurai, G.S.Simpson, L.Sinclair, P.-A.Soderstrom, M.Tanaka, J.Taprogge, H.Watanabe, V.Werner, O.Wieland, J.Wu, Z.Y.Xu, A.Yagi Observation of new neutron-rich isotopes in the vicinity of 110Zr NUCLEAR REACTIONS 9Be(238U, F)98Br/99Br/101Br/99Kr/100Kr/101Kr/102Kr/100Rb/101Rb/102Rb/103Rb/104Rb/105Rb/106Rb/101Sr/102Sr/103Sr/104Sr/105Sr/106Sr/107Sr/108Sr/103Y/104Y/105Y/106Y/107Y/108Y/109Y/110Y/111Y/105Zr/106Zr/107Zr/108Zr/109Zr/110Zr/111Zr/112Zr/113Zr/114Zr/108Nb/109Nb/110Nb/111Nb/112Nb/113Nb/114Nb/115Nb/116Nb/117Nb/111Mo/112Mo/113Mo/114Mo/115Mo/116Mo/117Mo/118Mo/119Mo/114Tc/115Tc/116Tc/117Tc/118Tc/119Tc/120Tc/121Tc/117Ru/118Ru/119Ru/120Ru/121Ru/122Ru/120Rh/121Rh/122Rh/123Rh, E=345 MeV/nucleon; measured reaction products and production yields and σ, with particle-identifications through energy loss, time of flight, and magnetic rigidities using BigRIPS separator and ZeroDegree spectrometer at RIBF-RIKEN facility. Comparison with theoretical calculations using LISE++ code. 101Br, 102Kr, 105Rb, 106Rb, 108Sr, 110,111Y, 114Zr, 117Nb; identified new neutron-rich. 99,100Br; no evidence found for production.
doi: 10.1103/PhysRevC.103.014614
2021UR03 Phys.Rev. C 104, 064309 (2021) W.Urban, K.Sieja, T.Rzkaca-Urban, J.Wisniewski, A.Blanc, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.S.Simpson, C.A.Ur, A.G.Smith, J.P.Greene Structure of even-even Sr isotopes with 50 ≤ N ≤ 58 neutrons NUCLEAR REACTIONS 235U(n, F), E=thermal; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(linear polarization) using Exogam array at Institut Laue Langevin (EXILL) at Grenoble. 90,92,94Sr, 96Sr; deduced levels, J, π, γ-branching ratios, multipolarities, multipole mixing ratios. Comparison with previous experimental results, and with large-scale shell-model calculations; discussed role of the ν9/2[404] extruder in change of deformation in this mass range. Systematics of excited 0+ low-lying states in N=50-64, Zn, Ge, Se, Kr, Sr, Zr, Ru; and in N=50, 52, Z=28-50 even-even isotopes. RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array at Argonne National Laboratory. 90,92,94Sr, 96Sr; deduced levels, J, π, γ-branching. Results from this experiment were mainly used as a countercheck of data from 235U(n, F) reaction. No separate Eγ, Iγ data given from this measurement. NUCLEAR STRUCTURE 88,90,92,94Sr, 96Sr; calculated main proton and neutron components in wave functions of the levels in Sr isotopes, structure of first four 0+, first two 1+, first three 2+, first two 3+, and first 3-, 4-, 5-, 6-, 7- and 9- levels in terms of main components, B(M1), occupation of proton orbitals in selected levels of 88Sr using large-scale shell-model.
doi: 10.1103/PhysRevC.104.064309
2021WA49 Phys.Lett. B 823, 136766 (2021) H.Watanabe, C.X.Yuan, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, H.K.Wang, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga Impact of shell evolution on Gamow-Teller β decay from a high-spin long-lived isomer in 127Ag RADIOACTIVITY 127Cd(EC), 127Ag(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, γ-γ-coin.; deduced γ -ray energies and intensities, J, π, B(GT), isomeric T1/2. Comparison with shell model calculations.
doi: 10.1016/j.physletb.2021.136766
2021YO08 Phys.Rev. C 104, L021303 (2021) R.Yokoyama, E.Ideguchi, G.S.Simpson, M.Tanaka, Y.Sun, C.-J.Lv, Y.-X.Liu, L.-J.Wang, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, F.Browne, R.Daido, Y.Fang, N.Fukuda, A.Gottardo, G.Gey, S.Go, S.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, Z.Patel, S.Rice, E.Sahin, H.Sakurai, H.Schaffner, L.Sinclair, H.Suzuki, H.Takeda, J.Taprogge, Zs.Vajta, H.Watanabe, A.Yagi Three-quasiparticle isomers in odd-even 159, 161Pm: Calling for modified spin-orbit interaction for the neutron-rich region RADIOACTIVITY 159,161Pm(IT)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fission fragments using the BigRIPS in-flight separator and implantation of fragments in WAS3ABi setup at RIBF-RIKEN facility]; measured Eγ, Iγ, γγ-coin, half-lives of the isomers by γ(t) using the EURICA array of 12 EUROBALL clusters. 159,161Pm; deduced high-spin levels, J, π, bands, 2-quasiparticle Nilsson configurations for the isomeric states, and 3-quasiparticle configurations from theory, existence of the deformed N=98 subshell gap in odd-mass nuclei. Comparison with projected shell model (PSM) calculations. Discussed modification of strength of spin-orbit interactions in standard Nilsson parameters for neutron-rich rare-earth nuclei around A=165.
doi: 10.1103/PhysRevC.104.L021303
2020BO04 Phys.Rev.Lett. 124, 112501 (2020) F.Boulay, G.S.Simpson, Y.Ichikawa, S.Kisyov, D.Bucurescu, A.Takamine, D.S.Ahn, K.Asahi, H.Baba, D.L.Balabanski, T.Egami, T.Fujita, N.Fukuda, C.Funayama, T.Furukawa, G.Georgiev, A.Gladkov, M.Hass, K.Imamura, N.Inabe, Y.Ishibashi, T.Kawaguchi, T.Kawamura, W.Kim, Y.Kobayashi, S.Kojima, A.Kusoglu, R.Lozeva, S.Momiyama, I.Mukul, M.Niikura, H.Nishibata, T.Nishizaka, A.Odahara, Y.Ohtomo, D.Ralet, T.Sato, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, L.C.Tao, Y.Togano, D.Tominaga, H.Ueno, H.Yamazaki, X.F.Yang, J.M.Daugas g Factor of the 99Zr(7/2+) Isomer: Monopole Evolution in the Shape-Coexisting Region RADIOACTIVITY 99Zr(IT) [from 9Be(238U, X), E=345 MeV/nucleon];measured decay products, Eγ, Iγ; deduced g-ray energies, J, π, level scheme, g-factor using a method of time-differential perturbed angular distribution (TDPAD), T1/2. Comparison with IBFM-1 calculations.
doi: 10.1103/PhysRevLett.124.112501
2020HA14 Phys.Rev. C 101, 044311 (2020) J.Ha, T.Sumikama, F.Browne, N.Hinohara, A.M.Bruce, S.Choi, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, H.Watanabe, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, H.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland Shape evolution of neutron-rich 106, 108, 110Mo isotopes in the triaxial degree of freedom RADIOACTIVITY 106,108,110Nb, 106,108,110Zr(β-); 108,110Nb(β-n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of ions using BigRIPS fragment separator and transported through the ZeroDegree spectrometer at RIBF-RIKEN facility]; measured Eγ, Iγ, β-, β-γγ-coin, and half-lives of decays of 106Nb, 108Nb, 110Nb and 110Zr from β-delayed γ-decay curves, half-lives of the first 2+ states in 106Mo, 108Mo and 110Mo using WAS3ABi system for ion and β- detection, EURICA array for γ detection, and fast-timing array for level half-lives. 106,108,110Mo; deduced levels, J, π, bands, configurations, β feedings, logft, B(E2) ratios, quadrupole deformation, kinematic moment of inertia for the ground bands, staggering pattern. 108,110Nb; deduced %β-n or Pn from the β-delayed γ rays emitted from the daughter nuclei, two β-decaying states or an isomer in 110Nb. 106,108,110Nb; deduced J, π; discussed Nilsson configurations. Comparison with theoretical calculations. Systematics of E(4+)/E(first 2+) ratios in N(even)=56-72, Zr, Mo, Ru and Pd isotopes, and level energy staggering pattern relative to the first 2+ states in N=64, 66, 68 Mo, Ru, and Pd isotopes. NUCLEAR STRUCTURE 106,108,110Mo; calculated levels, J, π, potential-energy surface (PES) contours and the collective-wave functions for low-lying positive-parity states. Comparison with beyond-meanfield calculations using the constrained Hartree-Fock-Bogoliubov and local quasiparticle-random-phase approximation with SLy5+T interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.101.044311
2020JU02 Phys.Rev. C 102, 034324 (2020) A.Jungclaus, J.M.Keatings, G.S.Simpson, H.Naidja, A.Gargano, S.Nishimura, P.Doornenbal, G.Gey, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, H.Suzuki, H.Takeda, Z.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, S.Bonig, J.-M.Daugas, R.Gernhauser, S.Ilieva, T.Kroll, A.Montaner-Piza, K.Moschner, D.Mucher, H.Nishibata, A.Odahara, R.Orlandi, M.Scheck, K.Steiger, A.Wendt Evolution of proton single-particle states in neutron-rich Sb isotopes beyond N=82 RADIOACTIVITY 136,137,138Sn(β-)(β-n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation and identification of fragments of interest using BigRIPS separator and ZeroDegree spectrometer, and implants deposited at WAS3ABi detector at RIBF-RIKEN facility]; measured Eγ, Iγ, Eβ, βγ- and γγ-coin using the EURICA array of Ge detectors, half-lives of decays of 136Sn, 137Sn and 138Sn. 136,137,138Sb; deduced levels, J, π, %β-n or Pn, β feedings, logft, configurations. Comparison with shell model calculations using the Napoli and N3LOP interactions. Systematics of first 5/2+ and 7/2+ states in 133,135,137,139,141Sb. 134,136,138Sb; calculated energies of levels in 0- to 7- spin range using shell model calculations using the Napoli and N3LOP interactions, and compared with experimental data. Systematics of experimental energies of the first 5/2+ and 7/2+ states in A=107-135, odd-A Sb isotopes.
doi: 10.1103/PhysRevC.102.034324
2020KN04 Phys.Rev. C 102, 054322 (2020) L.Knafla, P.Alexa, U.Koster, G.Thiamova, J.-M.Regis, J.Jolie, A.Blanc, A.M.Bruce, A.Esmaylzadeh, L.M.Fraile, G.de France, G.Hafner, S.Ilieva, M.Jentschel, V.Karayonchev, W.Korten, T.Kroll, S.Lalkovski, S.Leoni, H.Mach, N.Marginean, P.Mutti, G.Pascovici, V.Paziy, Zs.Podolyak, P.H.Regan, O.J.Roberts, N.Saed-Samii, G.S.Simpson, J.F.Smith, T.Soldner, C.Townsley, C.A.Ur, W.Urban, A.Vancraeyenest, N.Warr Lifetime measurements in the odd-A nucleus 177Hf RADIOACTIVITY 177mLu(β-)[from thermal neutron activation of Lu(NO3)3 at the FRM2 reactor in Garching]; measured Eγ, Iγ, γγ-coin, half-lives of levels in 177Hf by γγ(t) and generalized-centroid-difference (GCD) method using EXILL-FATIMA array of eight HPGe-Clover detectors and 16 fast-timing LaBr3(Ce) detectors at ILL-Grenoble. 177Hf; deduced levels, J, π, B(M1), B(E2), B(E1), configurations. Comparison to particle-rotor-model (PRM), and quasiparticle-phonon-model (QPM) calculations with multipole-multipole interactions. 176Hf; calculated microscopic structure of the lowest 2-qp vibrational states.
doi: 10.1103/PhysRevC.102.054322
2020KO03 Phys.Rev. C 101, 014303 (2020) P.Koseoglou, V.Werner, N.Pietralla, S.Ilieva, T.Niksic, D.Vretenar, P.Alexa, M.Thurauf, C.Bernards, A.Blanc, A.M.Bruce, R.B.Cakirli, N.Cooper, L.M.Fraile, G.de France, M.Jentschel, J.Jolie, U.Koster, W.Korten, T.Kroll, S.Lalkovski, H.Mach, N.Marginean, P.Mutti, Z.Patel, V.Paziy, Zs.Podolyak, P.H.Regan, J.-M.Regis, O.J.Roberts, N.Saed-Samii, G.S.Simpson, T.Soldner, C.A.Ur, W.Urban, D.Wilmsen, E.Wilson Low-Z boundary of the N=88-0 shape phase transition: 148Ce near the critical point NUCLEAR REACTIONS 235U(n, Fγ), E=cold neutrons from PF1B, ILL-Grenoble facility; measured Eγ, γγ-coin, half-lives of the first 2+ and 4+ levels in 148Ce by fast-timing technique using the EXILL-FATIMA array of eight EXOGAM clovers and 16 LaBr3(Ce) scintillators. 148Ce; deduced levels, B(E2) for the first 2+ 4+ states. Comparison with predictions of vibrator, rigid rotor, X(5) and X(5)-β8 models, and with previous experimental results. Systematics of E(first 4+)/E(first 2+) and energies of the yrast states for N=90 isotones 146Ba, 148Ce, 150Nd, 152Sm, 154Gd, 156Dy. NUCLEAR STRUCTURE 144,146,148Ce, 146,148,150Nd, 148,150,152,154Sm; calculated quantum shape phase transition (QSPT) lines in the IBM symmetry triangle using IBM-1 model. 148Ce; calculated self-consistent triaxial quadrupole constrained energy surfaces and probability distributions in in the β-γ plane using Axial Skyrme-Hartree-Fock-Bogoliubov model.
doi: 10.1103/PhysRevC.101.014303
2020PA26 Phys.Rev. C 102, 014329 (2020) V.Paziy, L.M.Fraile, H.Mach, B.Olaizola, G.S.Simpson, A.Aprahamian, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, D.Ghita, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, R.Lica, N.Marginean, R.Marginean, J.-M.Regis, M.Rudigier, T.Sava, M.Stanoiu, L.Stroe, W.B.Walters Fast-timing study of 81Ga from the β decay of 81Zn RADIOACTIVITY 81Zn(β-), (β-n)[from U(p, F), E=1.4 GeV at CERN PS-Booster (PSB) facility, followed by separation of ionized nuclei using the ISOLDE-RILIS]; measured Eγ, Iγ, b-, βγ- and γγ-coin, half-life of 81Zn decay, level half-lives by βγγ(t) fast-timing technique, β-delayed neutron branching ratio or Pn using HPGe and LaBr3 detectors for γ detection and a plastic scintillator for β detection at CERN-ISOLDE. 80,81Ga(β-); measured half-lives of 80Ga and 81Ga decays. 80,81Ga; deduced levels, J, π, Iβ, logft, B(M1), and B(E2). Comparison with large-scale shell model calculations using the NuShellX@MSU and ANTOINE codes with JUN45 and jj44b interactions. Systematics of low-lying levels in 71,73,75,77,79,81Ga, 79Cu, 83As, 85Br, 87Rb. 81Zn; discussed spin, parity and configuration of the ground state.
doi: 10.1103/PhysRevC.102.014329
2020UR02 Phys.Rev. C 102, 024318 (2020) W.Urban, T.Rzaca-Urban, J.Wisniewski, J.Kurpeta, A.Plochocki, J.P.Greene, A.G.Smith, G.S.Simpson New, low-energy excitations in 107Mo and 109Mo RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, half-lives of the isomer in 107Mo by γγ(t) using the Eurogam2 array for 248Cm(SF) experiment and Gammasphere array for 252Cf(SF). 107,109Mo; deduced levels, isomers, J, π, Jπ for ground states and isomers, total conversion coefficients for an isomeric transition in 107Mo, configurations. Systematics of low-energy excitations and γ deformation parameters in Mo isotopes.
doi: 10.1103/PhysRevC.102.024318
2020UR03 Phys.Rev. C 102, 064321 (2020) W.Urban, T.Rzaca-Urban, A.G.Smith, G.S.Simpson, J.P.Greene First observation of excited states in the 154Ce96 nucleus: Rigid rotation at Z = 58 RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, population of even-even Ce isotopes using the Eurogam2 and Gammasphere arrays. 154Ce; deduced levels, J, π, rotational band up to 8+. 140,142,144Xe, 142,144,146,148,150Ba, 146,148,150,152Ce, 150,152,154,156Nd, 156,158,160Sm, 160,162,164Gd; measured Eγ for ground-state bands up to 8+, and compared to literature values. Systematics of excited 0+ states in N=88 and N=90 isotones of Ba, Ce, Nd, Sm, Gd, Dy and Er. Systematics of E(first 4+)/E(first 2+) of N=90, 92, 94 and 96 isotones of Ba to Hf isotopes, and for N(even)=90-106, Z(even)=56-66 nuclei.
doi: 10.1103/PhysRevC.102.064321
2019CH24 Phys.Rev.Lett. 122, 212502 (2019) Z.Q.Chen, Z.H.Li, H.Hua, H.Watanabe, C.X.Yuan, S.Q.Zhang, G.Lorusso, S.Nishimura, H.Baba, F.Browne, G.Benzoni, K.Y.Chae, F.C.L.Crespi, P.Doornenbal, N.Fukuda, G.Gey, R.Gernhauser, N.Inabe, T.Isobe, D.X.Jiang, A.Jungclaus, H.S.Jung, Y.Jin, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, X.Q.Li, J.L.Lou, G.J.Lane, C.G.Li, D.W.Luo, A.Montaner-Piza, K.Moschner, C.Y.Niu, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Z.Podolyak, T.Sumikama, P.-A.Soderstrom, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, J.Taprogge, H.Takeda, Zs.Vajta, H.K.Wang, J.Wu, A.Wendt, C.G.Wang, H.Y.Wu, X.Wang, C.G.Wu, C.Xu, Z.Y.Xu, A.Yagi, Y.L.Ye, K.Yoshinaga Proton Shell Evolution below 132Sn : First Measurement of Low-Lying β-Emitting Isomers in 123, 125Ag RADIOACTIVITY 123,125Pd(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell-model calculations.
doi: 10.1103/PhysRevLett.122.212502
2019GR06 J.Phys.(London) G46, 075101 (2019) E.T.Gregor, N.N.Arsenyev, M.Scheck, T.M.Shneidman, M.Thurauf, C.Bernards, A.Blanc, R.Chapman, F.Drouet, A.A.Dzhioev, G.de France, M.Jentschel, J.Jolie, J.M.Keatings, T.Kroll, U.Koster, R.Leguillon, K.R.Mashtakov, P.Mutti, D.O'Donnell, C.M.Petrache, G.S.Simpson, J.Sinclair, J.F.Smith, T.Soldner, P.Spagnoletti, A.V.Sushkov, W.Urban, A.Vancraeyenest, J.R.Vanhoy, V.Werner, K.O.Zell, M.Zielinska Decay properties of the 3-1 level in 96Mo NUCLEAR REACTIONS 95Mo(n, 2γ), E cold; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies and intensities, B(Eλ). Comparison with QRPA results. NUCLEAR STRUCTURE 92,94,96,98Mo; calculated energy levels, B(Eλ) using QRPA approach.
doi: 10.1088/1361-6471/ab0b5e
2019IC02 Nat.Phys. 15, 321 (2019) Y.Ichikawa, H.Nishibata, Y.Tsunoda, A.Takamine, K.Imamura, T.Fujita, T.Sato, S.Momiyama, Y.Shimizu, D.S.Ahn, K.Asahi, H.Baba, D.L.Balabanski, F.Boulay, J.M.Daugas, T.Egami, N.Fukuda, C.Funayama, T.Furukawa, G.Georgiev, A.Gladkov, N.Inabe, Y.Ishibashi, T.Kawaguchi, T.Kawamura, Y.Kobayashi, S.Kojima, A.Kusoglu, I.Mukul, M.Niikura, T.Nishizaka, A.Odahara, Y.Ohtomo, T.Otsuka, D.Ralet, G.S.Simpson, T.Sumikama, H.Suzuki, H.Takeda, L.C.Tao, Y.Togano, D.Tominaga, H.Ueno, H.Yamazaki, X.F.Yang Interplay between nuclear shell evolution and shape deformation revealed by the magnetic moment of 75Cu NUCLEAR REACTIONS 27Al(76Zn, p)75Cu, E<345 MeV/nucleon; 9Be(238U, X)76Zn, E= 345 MeV/nucleon; measured reaction products, Eγ, Iγ. 75Cu; deduced γ-ray energies, J, π, nuclear magnetic moment. Comparison with theoretical calculations, systematics.
doi: 10.1038/s41567-018-0410-7
2019OL02 Phys.Rev. C 99, 024321 (2019) B.Olaizola, L.M.Fraile, H.Mach, F.Nowacki, A.Poves, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, D.Radulov, G.S.Simpson, J.M.Udias Properties of low-lying states in 65Co from lifetime measurements RADIOACTIVITY 65Fe(β-)[from U(p, F), E=1.4 GeV followed by ionization using a Resonance Ionization Laser Ion Source (RILIS) at ISOLDE-CERN facility]; measured Eγ, Iγ, βγ- and γγ-coin, half-life of 65Fe g.s. from decay curves for γ rays, level half-lives by βγ(t) and βγγ(t) using fast timing technique. 65Co; deduced levels, J, π, β feedings, logft, B(M1), and B(E2). Comparison with large-scale shell model calculations. NUCLEAR STRUCTURE 65Co; calculated levels, J, π, occupation numbers using shell-model with LNPS effective interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.99.024321
2019TH01 Phys.Rev. C 99, 011304 (2019) M.Thurauf, Ch.Stoyanov, M.Scheck, M.Jentschel, C.Bernards, A.Blanc, N.Cooper, G.De France, E.T.Gregor, C.Henrich, S.F.Hicks, J.Jolie, O.Kaleja, U.Koster, T.Kroll, R.Leguillon, P.Mutti, D.O'Donnell, C.M.Petrache, G.S.Simpson, J.F.Smith, T.Soldner, M.Tezgel, W.Urban, J.Vanhoy, M.Werner, V.Werner, K.O.Zell, T.Zerrouki Low-lying octupole isovector excitation in 144Nd NUCLEAR REACTIONS 143Nd(n, γ), E=cold; measured Eγ, Iγ, γγ-coin, γγ(θ), half-lives of 3- states by Doppler-shift technique (GRID) using EXILL array for γ detection at the Institut Laue-Langevin, Grenoble. 144Nd; deduced low-lying 3- levels, multipolarities, mixing ratios, B(M1), B(E2), B(E3). Comparison with quasiparticle phonon model (QPM) calculations.
doi: 10.1103/PhysRevC.99.011304
2019TO10 Eur.Phys.J. A 55, 158 (2019) D.A.Torres, R.Chapman, V.Kumar, B.Hadinia, A.Hodsdon, M.Labiche, X.Liang, D.O'Donnell, J.Ollier, R.Orlandi, J.F.Smith, K.-M.Spohr, P.Wady, Z.M.Wang, L.Corradi, E.Fioretto, A.Gadea, G.de Angelis, N.Marginean, D.R.Napoli, E.Sahin, A.M.Stefanini, J.J.Valiente-Dobon, F.D.Vedova, M.Axiotis, T.Martinez, S.Szilner, D.Bazzacco, S.Beghini, E.Farnea, R.Marginean, D.Mengoni, G.Montagnoli, F.Recchia, F.Scarlassara, C.A.Ur, S.M.Lenzi, S.Lunardi, T.Kroll, F.Haas, T.Faul, M.Hjorth-Jensen, B.G.Carlsson, S.J.Freeman, A.G.Smith, G.Jones, N.Thompson, G.Pollarolo, G.S.Simpson Study of medium-spin states of neutron-rich 87, 89, 91Rb isotopes NUCLEAR REACTIONS 124Sn(96Zr, f), (96Zr, x)87,89,91Rb, E=530 MeV; measured Eγ, Iγ of fission fragments γ-ray decay; 176Yb(36S, x), (36S, f)87,89,91Rb, E=230 MeV; measured thick target Eγ, Iγ of fission fragments γ-ray decay. 87,89,91Rb; deduced γ-ray energy spectrum, new scheme of levels, Jπ, (up to 6423 keV (27/2)+ state), γ-ray transitions; calculated multipolarities, energy differences between (5/2)- and (3/2)- states for odd-A Rb isotopes using spherical shell-model and cranked Nilsson-Strutinsky-Bogoliubov approach.
doi: 10.1140/epja/i2019-12839-6
2019UR01 Phys.Rev. C 99, 064325 (2019) W.Urban, T.Rzaca-Urban, J.Wisniewski, I.Ahmad, A.G.Smith, G.S.Simpson Structure of 0+ excitations in the mass A ≈ 100 region: 0+2 bands in 98Sr and 100Zr RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, and γγ(θ)(DCO) using the Eurogam2 and Gammasphere arrays for γ detection. 98Sr, 100Zr; deduced levels, J, π, B(E2), bands, configurations. Systematics of 0+ states, and β deformation in 90,92,94,96,98,100Sr, 92,94,96,98,100,102Zr, 94,96,98,100,102,104,106Mo, 96,98,100,102,104,106,108,110Ru, 100,104,106,108,110,112Pd, 106,108,110,112,114Cd, 108,110,112,114,116Sn.
doi: 10.1103/PhysRevC.99.064325
2019UR02 Phys.Rev. C 100, 014319 (2019) W.Urban, T.Rzaca-Urban, J.Wisniewski, A.G.Smith, G.S.Simpson, I.Ahmad First observation of γ-soft and triaxial bands in Zr isotopes RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, and γγ(θ) using the Eurogam2 array at ILL-Grenoble, and Gammasphere array at ANL. 100,102Zr; deduced high-spin levels, J, π, multipolarities, mixing ratios, triaxial and γ bands, alignments and staggering in bands, γ softness and triaxiality in Zr isotopes.
doi: 10.1103/PhysRevC.100.014319
2019WA14 Phys.Lett. B 792, 263 (2019) H.Watanabe, H.K.Wang, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, Y.Sun, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga New isomers in 125Pd79 and 127Pd81: Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N=82 shell closure RADIOACTIVITY 125,127Pd(IT) [from Be(238U, X)125Pd/127Pd, E=345 MeV/nucleon;] ; measured decay products, Eγ, Iγ; deduced γ-ray energies, intensities, T1/2. Comparison with shell model calculations.
doi: 10.1016/j.physletb.2019.03.053
2018AL14 Phys.Rev. C 97, 034327 (2018) P.Alexa, M.Ramdhane, G.Thiamova, G.S.Simpson, H.R.Faust, J.Genevey, U.Koster, T.Materna, R.Orlandi, J.A.Pinston, A.Scherillo, Z.Hons Quasiparticle phonon model description of low-energy states in 152Pr RADIOACTIVITY 152Pr(IT)[from 241Am(n, F), E=thermal, followed by mass separation of A=152 fission fragments using Lohengrin separator at ILL-Grenoble]; measured Eγ, Iγ, ce, x rays, (A=152 ions)γ-coin, (A=152 ions)ce-coin, half-life of the isomer by (A=152 ions)γ(t), conversion coefficients. 152Pr; deduced levels, J, π, multipolarities, configurations. Comparison with quasiparticle phonon model (QPM), combined with the particle-rotor model to include octupole correlations and Coriolis mixing. 152Nd; calculated energies of the first two 3- levels in connection with β- decay of 152Pr g.s. to 152Nd.
doi: 10.1103/PhysRevC.97.034327
2018BU16 Phys.Rev. C 98, 064320 (2018) B.Bucher, H.Mach, A.Aprahamian, L.M.Robledo, G.S.Simpson, J.Rissanen, D.G.Ghita, B.Olaizola, W.Kurcewicz, J.Aysto, T.Eronen, L.M.Fraile, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, M.Reponen, E.Ruchowska, A.Saastamoinen, M.K.Smith, C.Weber New insights into triaxiality and shape coexistence from odd-mass 109Rh RADIOACTIVITY 109Ru(β-)[from U(p, F), E=30 MeV]; measured Eγ, Iγ, γγ-coin, level half-lives using fast timing βγγ(t) technique at the IGISOL facility of University of Jyvaskyla. 109Rh; deduced levels, J, π, B(M1), B(E2). NUCLEAR STRUCTURE 109Rh; calculated potential energy surface (PES) in (β, γ) plane, proton single-particle energies as function of deformation parameters Q0 and γ, minimum energy E(β, γ) for the different blocked configurations using HFB method.
doi: 10.1103/PhysRevC.98.064320
2018RZ01 Phys.Rev. C 98, 064315 (2018) T.Rzaca-Urban, W.Urban, M.Czerwinski, J.Wisniewski, A.Blanc, H.Faust, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.S.Simpson, C.A.Ur Low-spin excitations in 97Zr NUCLEAR REACTIONS 96Zr(n, γ), E=cold or thermal; measured Eγ, Iγ, γγ-coin, γγ(θ) using the EXILL HPGe array at the PF1B cold-neutron facility of ILL, Grenoble. 97Zr; deduced levels, J, π, multipolarities, mixing ratios, S(n), configurations. Comparison with previous experimental values. 27Al, 35Cl, 91Zr(n, γ), E=cold or thermal; measured Eγ, Iγ, data used for calibration purpose. 28Al, 92,97Zr; deduced S(n) and compared with literature values. RADIOACTIVITY 97,97mY(β-)[from 235U(n, F) using Lohengrin fission-fragment separator of the ILL]; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(linear polarization) using the EXILL Ge array. 97Zr; deduced levels, J, π, multipolarities, mixing ratios. 97Sr, 88Br(IT); measured isomer half-lives of 830-keV isomer in 97Sr, and 270-keV isomer in 88Br by γ(t).
doi: 10.1103/PhysRevC.98.064315
2018SH11 J.Phys.Soc.Jpn. 87, 014203 (2018) Y.Shimizu, T.Kubo, N.Fukuda, N.Inabe, D.Kameda, H.Sato, H.Suzuki, H.Takeda, K.Yoshida, G.Lorusso, H.Watanabe, G.S.Simpson, A.Jungclaus, H.Baba, F.Browne, P.Doornenbal, G.Gey, T.Isobe, Z.Li, S.Nishimura, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Vajta, J.Wu, Z.Xu, A.Odahara, A.Yagi, H.Nishibata, R.Lozeva, C.Moon, H.S.Jung Observation of New Neutron-rich Isotopes among Fission Fragments from In-flight Fission of 345 MeV/nucleon 238U: Search for New Isotopes Conducted Concurrently with Decay Measurement Campaigns NUCLEAR REACTIONS 9Be(238U, F)104Rb/113Zr/116Nb/118Mo/119Mo/121Tc/122Tc/125Ru/127Rh/128Rh/129Pd/130Pd/131Pd/132Ag/134Cd/136In/137In/139Sn/140Sn/141Sb/142Sb/144Te/145Te/146I/147I/149Xe/150Xe/149Cs/150Cs/151Cs/153Ba/154Ba/154La/155La/156La/157La, E=345 MeV/nucleon; measured reaction products, A/Q spectra, and production cross sections for 36 new neutron-rich isotopes using BigRIPS spectrometer at RIBF-RIKEN facility.
doi: 10.7566/JPSJ.87.014203
2018TH06 Phys.Rev. C 98, 064304 (2018) G.Thiamova, Y.Grachev, M.Abolghasem, P.Alexa, P.-G.Reinhard, T.R.RodrIguez, G.S.Simpson Macroscopic and microscopic description of low-energy collective states in 86, 88Se NUCLEAR STRUCTURE 86,88Se; calculated levels, J, π, B(E2), potential energy curves (PEC), collective wave function contours in (β2, γ) plane using Algebraic collective model (ACM) with five-dimensional collective Hamiltonian, and symmetry conserving configuration mixing (SCCM) method with Gogny energy density functionals (EDF). Comparison with experimental data. 74,76,78,80,82,84,86,88,90,92,94,96,98,100Se; calculated energies of the first 2+ states, triaxiality, deformation β2, oblate and prolate potential energy curve minima using Skyrme-Hartree-Fock model (SHF) with two parametrizations SVbas and sym34. 82,84,86Ge, 84,86,88Se, 86,88,90,92,94Kr, 88,90,92,94,96Sr; compiled systematics of experimental energies of the first 2+ states, E(first 4+)/E(first 2+) and E(second 2+)/E(first 2+) ratios.
doi: 10.1103/PhysRevC.98.064304
2018YO04 Prog.Theor.Exp.Phys. 2018, 041D02 (2018) R.Yokoyama, E.Ideguchi, G.S.Simpson, Mn.Tanaka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, F.Browne, R.Daido, Y.Fang, N.Fukuda, A.Gottardo, G.Gey, S.Go, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, Z.Patel, S.Rice, E.Sahin, H.Sakurai, H.Schaffner, L.Sinclair, H.Suzuki, H.Takeda, J.Taprogge, Zs.Vajta, H.Watanabe, A.Yagi, T.Inakura Beta-gamma spectroscopy of the neutron-rich 150Ba RADIOACTIVITY 150Cs(β-) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eβ, Iβ, Eγ, Iγ, β-γ-coin.; deduced γ-ray energies, 2+ state. Comparison with theoretical calculations.
doi: 10.1093/ptep/pty037
2017AN15 Phys.Rev. C 96, 054323 (2017) S.Ansari, J.-M.Regis, J.Jolie, N.Saed-Samii, N.Warr, W.Korten, M.Zielinska, M.-D.Salsac, A.Blanc, M.Jentschel, U.Koster, P.Mutti, T.Soldner, G.S.Simpson, F.Drouet, A.Vancraeyenest, G.de France, E.Clement, O.Stezowski, C.A.Ur, W.Urban, P.H.Regan, Zs.Podolyak, C.Larijani, C.Townsley, R.Carroll, E.Wilson, H.Mach, L.M.Fraile, V.Paziy, B.Olaizola, V.Vedia, A.M.Bruce, O.J.Roberts, J.F.Smith, M.Scheck, T.Kroll, A.-L.Hartig, A.Ignatov, S.Ilieva, S.Lalkovski, N.Marginean, T.Otsuka, N.Shimizu, T.Togashi, Y.Tsunoda Experimental study of the lifetime and phase transition in neutron-rich 98, 100, 102Zr NUCLEAR REACTIONS 235U(n, F), 241Pu(n, F), E=cold neutrons beam from PF1B, Institut Laue-Langevin (ILL), Grenoble; measured Eγ, γγ-coin, half-lives of the first 2+, 4+ and 6+ levels by fast-timing technique using the EXILL-FATIMA array consisting of eight EXOGAM clovers and 16 LaBr3(Ce) scintillators; fast-timing coincidence events analyzed using method of mirror symmetric centroid difference (MSCD) and generalized centroid difference method (GCDM). 98,100,102Zr; deduced levels, B(E2). Comparison with Interacting Boson model and Monte-Carlo shell-model calculations, and with previous experimental results. Systematics of B(E2) values for the first 2+, 4+ and 6+ states in 96,98,100,102,104,106Zr.
doi: 10.1103/PhysRevC.96.054323
2017BR12 Phys.Rev. C 96, 024309 (2017) F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, H.Watanabe, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland K selection in the decay of the (ν5/2[532] (X) 3/2 [411]) 4- isomeric state in 102Zr RADIOACTIVITY 102Y(β-)[from 9Be(238U, F), E=345 MeV/nucleon]; measured Eγ, Iγ, energy-time matrices in coincidence with position-correlated β decays and 102Y ions, isomer half-life by βγγ(t) fast-timing method using BigRIPS spectrometer for ion separation, WAS3ABi system for ion and β detection and EURICA array for γ detection at RIBF-RIKEN facility. 102Zr; deduced levels, J, π, K for the isomer, B(E1), B(M1), Weisskopf hindrance factors, configuration for the isomer. Comparison with Weisskopf hindrance factors for the transitions from the decay of 4- isomer in 100Sr.
doi: 10.1103/PhysRevC.96.024309
2017CI02 Acta Phys.Pol. B48, 577 (2017) N.Cieplicka-Orynczak, G.Bocchi, S.Leoni, B.Fornal, S.Bottoni, M.Jentschel, U.Koster, P.Mutti, T.Soldner, A.Blanc, G.De France, G.S.Simpson, A.Turler, W.Urban, C.A.Ur Study of 41Ca via Cold Neutron Capture NUCLEAR REACTIONS 40,44,46Ca(n, γ), E=cold[Ca target with strongly enriched 44Ca]; measured Eγ, Iγ, γγ-coin using high resolution γ spectroscopy employing EXILL array (46 HPGe crystals). 41Ca; deduced γ transitions, levels, J, π, two new excited states, information about coupling valence nucleon with excitation of doubly-magic core.
doi: 10.5506/APhysPolB.48.577
2017GR07 Phys.Rev. C 95, 051302 (2017) I.N.Gratchev, G.S.Simpson, G.Thiamova, M.Ramdhane, K.Sieja, A.Blanc, M.Jentschel, U.Koster, P.Mutti, T.Soldner, G.de France, C.A.Ur, W.Urban Identification of excited states and collectivity in 88Se NUCLEAR REACTIONS 235U(n, F), E=cold neutron beam from PF1B-ILL-Grenoble; measured Eγ, Iγ, γγ-coin using EXILL array, average mass of complementary Ce nuclei. 88Se; deduced levels, J, π. Comparison with shell-model calculations, and systematics of first and second 2+ and first 4+ states in N=50-56 even-even Ge, Se, Kr and Sr isotopes. 145,146,147Ce, 86,87Se;observed γ rays.
doi: 10.1103/PhysRevC.95.051302
2017IS04 Acta Phys.Pol. B48, 581 (2017) L.W.Iskra, G.Bocchi, B.Fornal, S.Leoni, S.Bottoni, N.Cieplicka-Orynczak, M.Jentschel, U.Koster, C.Michelagnoli, P.Mutti, T.Soldner, A.Blanc, G.De France, G.S.Simpson, C.A.Ur, W.Urban Yrast Structure Above the 9.6 s 8+ Isomer in 96Y Isotope NUCLEAR REACTIONS 235U, 241Pu(n, x), E=cold; measured fission fragments Eγ, Iγ(θ), γγ-coin with gates on complementary fission fragment using highly efficient HPGe array consisting of eight EXOGAM Clover detectors, 6 large GASP detectors and 2 ILL Clovers. 96Y; deduced levels, J, π, partial level scheme, γ transitions, angular correlation coefficients, level structure above the 8+ isomer.
doi: 10.5506/APhysPolB.48.581
2017IS12 Phys.Scr. 92, 104001 (2017) L.W.Iskra, B.Fornal, S.Leoni, G.Bocchi, A.Blanc, S.Bottoni, N.Cieplicka-Orynczak, M.Jentschel, U.Koster, C.Michelagnoli, P.Mutti, T.Soldner, G.de France, G.S.Simpson, C.A.Ur, W.Urban Medium and high spin structure in the 94Y isotope produced in fission induced by cold neutrons NUCLEAR REACTIONS 235U(n, F)94Y, E thermal; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, high spin isomers.
doi: 10.1088/1402-4896/aa842a
2017JU02 Phys.Lett. B 772, 483 (2017) A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt Observation of a γ decaying millisecond isomeric state in 128Cd80 NUCLEAR REACTIONS 9Be(238U, X)128Cd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ. 129Cd, 129In; deduced γ-ray energies, J, π, level T1/2, B(E3). Comparison with theoretical calculations.
doi: 10.1016/j.physletb.2017.07.006
2017NA15 Phys.Rev. C 95, 064303 (2017) H.Naidja, F.Nowacki, B.Bounthong, M.Czerwinski, T.Rzaca-Urban, T.Roginski, W.Urban, J.Wisniewski, K.Sieja, A.G.Smith, J.F.Smith, G.S.Simpson, I.Ahmad, J.P.Greene New excitations in 142Ba and 144Ce: Evolution of γ bands in the N=86 isotones RADIOACTIVITY 252Cf(SF); 144La(β-)[from 252Cf SF]; measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array at Argonne National Laboratory. 142Ba, 144Ce; deduced high-spin levels, J, π, multipolarity, mixing ratios. 140Xe; deduced multipolarity and mixing ratios from γγ(θ) data. Comparison with large-scale shell-model calculations. NUCLEAR STRUCTURE 142Ba, 144Ce; calculated levels, J, π, quadrupole moments, B(E2), potential energy surfaces in (β, γ) plane using large-scale shell-model. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.064303
2017OH01 J.Phys.(London) G44, 044010 (2017) T.Ohtsubo, S.Roccia, N.J.Stone, J.R.Stone, C.Gaulard, U.Koster, J.Nikolov, G.S.Simpson, M.Veskovic The on-line low temperature nuclear orientation facility NICOLE
doi: 10.1088/1361-6471/aa5f22
2017OL03 Phys.Rev. C 95, 061303 (2017) B.Olaizola, L.M.Fraile, H.Mach, A.Poves, F.Nowacki, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, D.Radulov, G.S.Simpson, J.M.Udias Search for shape-coexisting 0+ states in 66Ni from lifetime measurements RADIOACTIVITY 66Co(β-)[from 66Mn -> 66Fe decay, 66Mn from U(p, F), E=1.4 GeV at ISOLDE-CERN facility using RILIS]; measured Eγ, half-life of an excited 0+ state by βγγ(t) method using LaBr3(Ce) crystals and two HPGe detectors for γ rays, and a fast plastic scintillator for beta particles. 66Ni; deduced levels, B(E2). Comparison with large-scale shell model calculations, and with previous experimental data.
doi: 10.1103/PhysRevC.95.061303
2017OL08 J.Phys.(London) G44, 125103 (2017) B.Olaizola, L.M.Fraile, H.Mach, A.Poves, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, D.Radulov, G.S.Simpson, J.M.Udias Beta decay of 66Mn to the N = 40 nucleus 66Fe RADIOACTIVITY 66Mn(β-), (β-n) [from U(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ; deduced 66Fe T1/2, γ-ray energies and intensities, B(E2), B(M1) limits. Comparison with shell model calculations.
doi: 10.1088/1361-6471/aa915e
2017PA25 Phys.Rev. C 96, 034305 (2017) Z.Patel, P.M.Walker, Zs.Podolyak, P.H.Regan, T.A.Berry, P.-A.Soderstrom, H.Watanabe, E.Ideguchi, G.S.Simpson, S.Nishimura, Q.Wu, F.R.Xu, F.Browne, P.Doornenbal, G.Lorusso, S.Rice, L.Sinclair, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, R.Daido, Zs.Dombradi, Y.Fang, N.Fukuda, G.Gey, S.Go, A.Gottardo, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, T.Komatsubara, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, E.Sahin, H.Sakurai, H.Schaffner, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, Zs.Vajta, A.Yagi, R.Yokoyama Isomer-delayed γ-ray spectroscopy of A = 159-164 midshell nuclei and the variation of K-forbidden E1 transition hindrance factors NUCLEAR REACTIONS 9Be(238U, X)159Sm/161Sm/162Sm/163Sm/163Eu/164Eu/165Eu/164Gd, E=345 MeV/nucleon; measured reaction products, delayed Eγ, Iγ, half-lives of isomers using BigRIPS and ZeroDegree spectrometers, and EURICA array at RIBF-RIKEN facility. 159,161,162Sm, 163Eu, 164Gd; deduced levels, J, π, configurations, K-forbidden E1 hindrance factors. Comparison with Nilsson+BCS calculations. 163Sm, 164,165Eu; deduced micro-sec isomers.
doi: 10.1103/PhysRevC.96.034305
2017RE05 Phys.Rev. C 95, 054319 (2017); Erratum Phys.Rev. C 95, 069902 (2017) J.-M.Regis, J.Jolie, N.Saed-Samii, N.Warr, M.Pfeiffer, A.Blanc, M.Jentschel, U.Koster, P.Mutti, T.Soldner, G.S.Simpson, F.Drouet, A.Vancraeyenest, G.de France, E.Clement, O.Stezowski, C.A.Ur, W.Urban, P.H.Regan, Zs.Podolyak, C.Larijani, C.Townsley, R.Carroll, E.Wilson, L.M.Fraile, H.Mach, V.Paziy, B.Olaizola, V.Vedia, A.M.Bruce, O.J.Roberts, J.F.Smith, M.Scheck, T.Kroll, A.-L.Hartig, A.Ignatov, S.Ilieva, S.Lalkovski, W.Korten, N.Marginean, T.Otsuka, N.Shimizu, T.Togashi, Y.Tsunoda Abrupt shape transition at neutron number N=60: B(E2) values in 94, 96, 98Sr from fast γ - γ timing NUCLEAR REACTIONS 235U(n, Fγ), E=cold neutron beam; measured Eγ, Iγ, level half-lives by fast-timing γγ(t) method using EXILL and FATIMA spectrometer at ILL-Grenoble reactor facility. 94,96,98Sr; deduced levels, B(E2)values. Comparison with previous experimental values, and with Monte Carlo Shell-model calculations.
doi: 10.1103/PhysRevC.95.054319
2017RZ01 Phys.Rev. C 95, 064302 (2017) T.Rzaca-Urban, K.Sieja, W.Urban, M.Czerwinski, A.Blanc, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.S.Simpson, C.A.Ur Structure of 90, 91Kr nuclei: Solving the puzzle of their population in fission NUCLEAR REACTIONS 235U(n, Fγ), E=cold neutrons from PF1B facility of ILL-Grenoble; measured Eγ, Iγ, γγ-coin, γγ(θ) using EXILL array of 28 pairs of the eight clover detectors. 90,91Kr; deduced levels, J, π, multipolarity, mixing ratios. 142,143,144Ba; observed γ rays from complementary fission fragments. Comparison with large-scale shell-model calculations. NUCLEAR STRUCTURE 90,91Kr; calculated levels, J, π, occupation of neutron and proton orbitals using large-scale shell-model. Systematics of positive-parity, yrare states in Z=32-44, N=52, 54 even-even nuclei.
doi: 10.1103/PhysRevC.95.064302
2017SC06 Acta Phys.Pol. B48, 547 (2017) M.Scheck, S.Mishev, V.Yu.Ponomarev, O.Agar, T.Beck, A.Blanc, R.Chapman, U.Gayer, L.P.Gaffney, E.T.Gregor, J.Keatings, P.Koseoglou, U.Koster, K.R.Mashtakov, D.O'Donnell, H.Pai, N.Pietralla, D.Savran, J.F.Smith, P.Spagnoletti, G.S.Simpson, M.Thurauf, V.Werner β Decay as a New Probe for the Low-energy E1 Strength RADIOACTIVITY 136I(β-); deduced discrete levels, γ transitions intensity, level population probability, branching ratios, B(E1) using published data. Compared with results from 136Xe(γ, γ'). NUCLEAR REACTIONS 136Xe(γ, γ'), E not given; deduced discrete transitions intensity, level population probability, branching ratios, B(E1) using published data.
doi: 10.5506/APhysPolB.48.547
2017SP02 Phys.Rev. C 95, 021302 (2017) P.Spagnoletti, G.S.Simpson, R.Carroll, J.-M.Regis, A.Blanc, M.Jentschel, U.Koster, P.Mutti, T.Soldner, G.de France, C.A.Ur, W.Urban, A.M.Bruce, F.Drouet, L.M.Fraile, L.P.Gaffney, D.G.Ghita, S.Ilieva, J.Jolie, W.Korten, T.Kroll, C.Larijani, S.Lalkovski, R.Lica, H.Mach, N.Marginean, V.Paziy, Zs.Podolyak, P.H.Regan, M.Scheck, N.Saed-Samii, G.Thiamova, C.Townsley, A.Vancraeyenest, V.Vedia, A.Gargano, P.Van Isacker Half-life of the 15/2+ state of 135I A test of E2 seniority relations NUCLEAR REACTIONS 235U(n, F)135I, E=cold neutrons at PF1B facility and high-flux reactor of the ILL-Grenoble; measured prompt Eγ, Iγ, half-life of (15/2+) state in 135I by γγ(t) using EXILL-FATIMA γ-detector array of Clover Ge and LaBr3 detectors. 135I; deduced levels, B(E2), configuration, E2 seniority relations between B(E2) values in neighboring nuclei. NUCLEAR STRUCTURE 134Te, 135I; calculated levels, J, π, B(E2) by large-scale shell-model calculations; deduced large two-body component of the E2 operator, whereas small energy shifts due to the three-body component of the effective interaction.
doi: 10.1103/PhysRevC.95.021302
2017UR03 Phys.Rev. C 96, 044333 (2017) W.Urban, M.Czerwinski, J.Kurpeta, T.Rzaca-Urban, J.Wisniewski, T.Materna, L.W.Iskra, A.G.Smith, I.Ahmad, A.Blanc, H.Faust, U.Koster, M.Jentschel, P.Mutti, T.Soldner, G.S.Simpson, J.A.Pinston, G.de France, C.A.Ur, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, J.Rissanen, A.Saastamoinen, J.Szerypo, C.Weber, J.Aysto Shape coexistence in the odd-odd nucleus 98Y: The role of the g9/2 neutron extruder NUCLEAR REACTIONS 235U(n, F), E=cold neutrons from PF1B facility at ILL Grenoble; measured Eγ, Iγ, γγ-coin, delayed γγ-coin, half-lives of several isomers in 98Y using the EXILL array at Grenoble. 98Y; deduced levels, isomers, J, π, bands, configurations, deformed and spherical isomers. RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), γγ-coin with γ rays from fission partner 147La in 248Cm SF decay using Eurogam2 array at Grenoble and Gammasphere array at Argonne. 98Y; deduced levels, J, π, multipolarities. 98Sr, 98,98mY(β-)[from 235U(n, F), E=cold neutrons and using Lohengrin fission-fragment separator]; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(linear pol), half-lives of decays of 98Sr, 98Y and 98Y isomer, excitation energy of the 2.36-s isomer in 98Y by using JYFLTRAP Penning trap at Jyvaskyla accelerator facility, . 98Y, 98Zr; deduced levels, J, π, multipolarities, mixing ratios, β feedings, logft, configurations. Comparison of negative-parity levels in 98Y with Interacting Boson Fermion Fermion Model (IBFFM) and Quasi-Particle Rotor Model (QPRM) calculations.
doi: 10.1103/PhysRevC.96.044333
2017VE05 Phys.Rev. C 96, 034311 (2017) V.Vedia, V.Paziy, L.M.Fraile, H.Mach, W.B.Walters, A.Aprahamian, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, D.Ghita, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, R.Lica, N.Marginean, R.Marginean, B.Olaizola, J.-M.Regis, M.Rudigier, T.Sava, G.S.Simpson, M.Stanoiu, L.Stroe Search for the 73Ga ground-state doublet splitting in the β decay of 73Zn RADIOACTIVITY 73Zn(β-)[from U(p, F), E=1.4 GeV]; measured Eγ, Iγ, βγ- and γγ-coin, half-life of 73Zn from γ-decay curves, level half-lives by fast-timing βγγ(t) technique using Resonance Ionization Laser Ion Source (RILIS) and magnetic high-resolution mass separator (HRS) at ISOLDE-CERN. 73Ga; deduced levels, ground state doublet, J, π, β feedings, logft, B(M1), B(E2). 73Zn(IT); measured Eγ, half-life of the isomer; deduced no evidence for a 42-keV transition from the isomer. Comparison with previous measurements, and with shell-model calculations. Systematics of level structure in 71,73,75Ga.
doi: 10.1103/PhysRevC.96.034311
2017WI15 Phys.Rev. C 96, 064301 (2017) J.Wisniewski, W.Urban, T.Rzaca-Urban, A.G.Smith, J.F.Smith, G.S.Simpson, I.Ahmad, J.P.Greene Parity-doublet structure in the 14757La90 nucleus RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγγ-coin, γγ(θ) using Gammasphere array at ANL. 147La; deduced high-spin levels, J, π, multipolarities, multipole mixing ratios, parity-doublet structures, alignments, configurations, B(E1)/B(E2) ratios, intrinsic electric dipole moment D0, octupole correlations, Systematics of 3/2+, 5/2+, 7/2+, 3/2-, 7/2- and 11/2- levels in 139,141,143,145,147,149La.
doi: 10.1103/PhysRevC.96.064301
2017WU04 Phys.Rev.Lett. 118, 072701 (2017) J.Wu, S.Nishimura, G.Lorusso, P.Moller, E.Ideguchi, P.-H.Regan, G.S.Simpson, P.-A.Soderstrom, P.M.Walker, H.Watanabe, Z.Y.Xu, H.Baba, F.Browne, R.Daido, P.Doornenbal, Y.F.Fang, G.Gey, T.Isobe, P.S.Lee, J.J.Liu, Z.Li, Z.Korkulu, Z.Patel, V.Phong, S.Rice, H.Sakurai, L.Sinclair, T.Sumikama, M.Tanaka, A.Yagi, Y.L.Ye, R.Yokoyama, G.X.Zhang, T.Alharbi, N.Aoi, F.L.Bello Garrote, G.Benzoni, A.M.Bruce, R.J.Carroll, K.Y.Chae, Z.Dombradi, A.Estrade, A.Gottardo, C.J.Griffin, H.Kanaoka, I.Kojouharov, F.G.Kondev, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, E.J.Lee, T.Lokotko, G.Lotay, C.-B.Moon, H.Nishibata, I.Nishizuka, C.R.Nita, A.Odahara, Zs.Podolyak, O.J.Roberts, H.Schaffner, C.Shand, J.Taprogge, S.Terashima, Z.Vajta, S.Yoshida 94 β-Decay Half-Lives of Neutron-Rich 55Cs to 67Ho: Experimental Feedback and Evaluation of the r-Process Rare-Earth Peak Formation RADIOACTIVITY 144,145,146,147,148,149,150,151Cs, 146,147,148,149,150,151,152,153,154Ba, 148,149,150,151,152,153,154,155,156La, 150,151,152,153,154,155,156,157,158Ce, 153,154,155,156,157,158,159,160Pr, 156,157,158,159,160,161,162Nd, 159,160,161,162,163Pm, 160,161,162,163,164,165,166Sm, 161,162,163,164,165,166,167,168Eu, 165,166,167,168,169,170Gd, 166,167,168,169,170,171,172Tb, 169,170,171,172,172m,173Dy, 172,173,174,175Ho, 174mEr(β-)[from Be(238U, X), E=345 MeV/nucleon]; measured and analyzed reaction products using BigRIPS separator and ZeroDegree Spectrometer (ZDS), γ rays, half-lives by (implant)β correlations using WAS3ABi and EURICA detection systems at RIBF-RIKEN facility; deduced Gamow-Teller strength functions, r-process abundance pattern in the solar system. Comparison with previous experimental half-lives, and with three theoretical calculations using FRDM+QRPA, KTUY+GT2, and RHB+pn-RQRPA models. Numerical values of half-lives listed in supplementary file.
doi: 10.1103/PhysRevLett.118.072701
2016CZ01 Phys.Rev. C 93, 034318 (2016) M.Czerwinski, T.Rzaca-Urban, W.Urban, P.Baczyk, K.Sieja, J.Timar, B.M.Nyako, I.Kuti, T.G.Tornyi, L.Atanasova, A.Blanc, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.S.Simpson, C.A.Ur Neutron-proton multiplets in the odd-odd nucleus9037Rb53 NUCLEAR REACTIONS 235U(n, F), E=cold neutrons; measured Eγ, Iγ, γγ-coin, γγ(θ), level half-lives, γγγ-coincidences between transitions from 90Rb and from complementary fission fragments 143Cs and 144Cs using EXOGAM array at ILL-Grenoble. 90Rb; deduced medium-spin levels, J, π, multipolarities and mixing ratios, configurations, seniority-3 coupling in N=53 isotones and its absence in N=51 isotones. Comparison with shell-model calculations. NUCLEAR STRUCTURE 88,90Rb; calculated levels, J, π using shell-model. Comparison with experimental values.
doi: 10.1103/PhysRevC.93.034318
2016ID02 Phys.Rev. C 94, 064322 (2016) E.Ideguchi, G.S.Simpson, R.Yokoyama, Mn.Tanaka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, F.Browne, R.Daido, Y.Fang, N.Fukuda, A.Gottardo, G.Gey, S.Go, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, Z.Patel, S.Rice, E.Sahin, H.Sakurai, H.Schaffner, L.Sinclair, H.Suzuki, H.Takeda, J.Taprogge, Zs.Vajta, H.Watanabe, A.Yagi μs isomers of 158, 160Nd NUCLEAR REACTIONS 9Be(238U, F), E=345 MeV/nucleon; measured fragments by ΔE-ToF-Bρ method using BigRIPS separator and ZeroDegree spectrometer (ZDS), Eγ, Iγ, (ion)γ-coin, delayed spectroscopy, half-lives of 2-qp isomers by (ion)γ(t) using EURICA array at RIBF-RIKEN facility. 158,160Nd; deduced levels, J, π, multipolarities, B(E1), hindered E1 transitions, configurations. Comparison with blocked-BCS (BBCS), projected shell-model (PSM) and deformed Hartree-Fock (HF) calculations.
doi: 10.1103/PhysRevC.94.064322
2016IL01 Phys.Rev. C 94, 034302 (2016) S.Ilieva, Th.Kroll, J.-M.Regis, N.Saed-Samii, A.Blanc, A.M.Bruce, L.M.Fraile, G.de France, A.-L.Hartig, C.Henrich, A.Ignatov, M.Jentschel, J.Jolie, W.Korten, U.Koster, S.Lalkovski, R.Lozeva, H.Mach, N.Marginean, P.Mutti, V.Paziy, P.H.Regan, G.S.Simpson, T.Soldner, M.Thurauf, C.A.Ur, W.Urban, N.Warr Measurement of picosecond lifetimes in neutron-rich Xe isotopes NUCLEAR REACTIONS 235U, 241Pu(n, F), E=cold neutron; measured Eγ, Iγ, γγ-coin, level half-lives for the first 2+, 4+ and 6+ states by γγ(t) and recoil-distance Doppler shift method using plunger device. EXILL and FATIMA detector arrays used at ILL-Grenoble facility. 138,140,142Xe; deduced levels, J, π, B(E2). Comparison with previous experimental results, and shell-model calculations. Systematics of B(E2) values for the first 2+ states in 132,134,136,138,140,142,144Xe.
doi: 10.1103/PhysRevC.94.034302
2016JU02 Phys.Rev. C 93, 041301 (2016) A.Jungclaus, A.Gargano, H.Grawe, J.Taprogge, S.Nishimura, P.Doornenbal, G.Lorusso, Y.Shimizu, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, S.Bonig, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, S.Ilieva, N.Itaco, T.Kroll, A.Montaner-Piza, K.Moschner, D.Mucher, H.Nishibata, A.Odahara, R.Orlandi, A.Wendt First observation of γ rays emitted from excited states south-east of 132Sn: The π g-19/2 (X) νf7/2 multiplet of 132In83 RADIOACTIVITY 133Cd(β-), (β-n)[from 9Be(238U, F), E=345 MeV/nucleon using BigRIPS fragment separator and ZeroDegree spectrometer at RIBF-RIKEN facility]; measured Eγ, Iγ, (133Cd ions)γ-coin using WAS3ABi detection system of DSSSDs for β rays and ions, and 12 large-volume Ge cluster detectors for gamma rays. 132In; deduced levels, J, π. Shell-model calculations. NUCLEAR REACTIONS 9Be(238U, F)129Cd47+/130Cd47+/132Cd48+/133Cd48+, E=345 MeV/nucleon; measured partial particle identification plot of Z=45-51 isotopes and mass-to-charge ratio A/q using BigRIPS fragment separator and ZeroDegree spectrometer at RIBF-RIKEN facility.
doi: 10.1103/PhysRevC.93.041301
2016JU03 Phys.Rev. C 94, 024303 (2016) A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt β decay of semi-magic 130Cd: Revision and extension of the level scheme of 130In RADIOACTIVITY 130Cd(β-)[from 9Be(238U, F), E=345 MeV/nucleon, using BigRIPS separator and ZeroDegree spectrometer (ZDS) at RIBF-RIKEN facility]; Measured Eγ, Iγ, γγ-, βγ-coin, isomer half-life by γγ(t) using WAS3ABi array for β and ion detection, and EURICA array of 12 large-volume HPGe clusters for γ detection. 130In; deduced levels, J, π, β feedings, logft, high-lying core-excited states, configurations. Comparison with previous experimental results, ENSDF evaluation, and shell-model calculations.
doi: 10.1103/PhysRevC.94.024303
2016OL06 Phys.Rev. C 94, 054318 (2016) B.Olaizola, H.Mach, L.M.Fraile, J.Benito, M.J.G.Borge, R.Boutami, P.A.Butler, Z.Dlouhy, H.O.U.Fynbo, P.Hoff, S.Hyldegaard, H.B.Jeppesen, A.Jokinen, C.Jollet, A.Korgul, U.Koster, Th.Kroll, W.Kurcewicz, F.Marechal, J.Mrazek, T.Nilsson, W.A.Plociennik, E.Ruchowska, R.Schuber, W.Schwerdtfeger, M.Sewtz, G.S.Simpson, M.Stanoiu, O.Tengblad, P.G.Thirolf, D.T.Yordanov High-sensitivity study of levels in 30Al following β decay of 30Mg RADIOACTIVITY 30Mg(β-), (β-n)[from U(p, F), E=1.4 GeV at CERN-ISOLDE]; measured Eγ, Iγ, Eβ, Iβ, βγ-, βγγ-coin, level half-lives by βγγ(t) fast timing method. 30Al; deduced levels, J, π, B(M1). Comparisons with shell-model calculations.
doi: 10.1103/PhysRevC.94.054318
2016PA01 Phys.Lett. B 753, 182 (2016) Z.Patel, Zs.Podolyak, P.M.Walker, P.H.Regan, P.-A.Soderstrom, H.Watanabe, E.Ideguchi, G.S.Simpson, S.Nishimura, F.Browne, P.Doornenbal, G.Lorusso, S.Rice, L.Sinclair, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, R.Daido, Zs.Dombradi, Y.Fang, N.Fukuda, G.Gey, S.Go, A.Gottardo, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, T.Komatsubara, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, H.L.Liu, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, E.Sahin, H.Sakurai, H.Schaffner, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, Zs.Vajta, F.R.Xu, A.Yagi, R.Yokoyama Decay spectroscopy of 160Sm: The lightest four-quasiparticle K isomer RADIOACTIVITY 160Sm(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, γ-γ-coinc.; deduced energy levels, J, π, isomeric states T1/2. Comparison with available data.
doi: 10.1016/j.physletb.2015.12.026
2016PE14 Phys.Rev. C 94, 024319 (2016) C.Petrone, J.M.Daugas, G.S.Simpson, M.Stanoiu, C.Plaisir, T.Faul, C.Borcea, R.Borcea, L.Caceres, S.Calinescu, R.Chevrier, L.Gaudefroy, G.Georgiev, G.Gey, O.Kamalou, F.Negoita, F.Rotaru, O.Sorlin, J.C.Thomas Nearly degenerate isomeric states of 75Cu NUCLEAR REACTIONS 9Be(86Kr, X), E=60.4 MeV/nucleon; measured ΔE, Bρ and TOF to separate reaction products using LISE2k spectrometer, Eγ, Iγ, γγ-coin, delayed γ, half-lives of isomers by (ion)γ(t) at GANIL facility. 75Cu; deduced levels, B(M1), B(E2) for proposed level-scheme scenarios. Systematics of level energies and B(M1), B(E2) in 69,71,73,75Cu. Comparison with shell-model calculations using jj4b, JUN45 and SMI effective interactions.
doi: 10.1103/PhysRevC.94.024319
2016RA07 Acta Phys.Pol. B47, 911 (2016) M.Ramdhane, G.S.Simpson, F.Drouet, T.Malkiewicz, A.Vancraeyenest, G.Gey, P.Alexa, G.Thiamova, G.Kessedjian, C.Sage, T.Grahn, P.T.Greenlees, K.Hauschild, A.Herzan, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, A.Lopez-Martens, P.Nieminen, P.Peura, P.Rahkila, S.Rinta-Antila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, J.Uusitalo Study of Intermediate-spin States of 98Y NUCLEAR REACTIONS 238U(p, X)98Y, E=25 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, rotational band. Comparison with GICM amd QPRM calculations.
doi: 10.5506/APhysPolB.47.911
2016SC06 Phys.Rev.Lett. 116, 132501 (2016) M.Scheck, S.Mishev, V.Yu.Ponomarev, R.Chapman, L.P.Gaffney, E.T.Gregor, N.Pietralla, P.Spagnoletti, D.Savran, G.S.Simpson Investigating the Pygmy Dipole Resonance Using β Decay NUCLEAR REACTIONS 136Xe(γ, γ'), E not given; calculated energy levels, J, π, B(E1). RADIOACTIVITY 136I(β-); calculated energy levels, J, π, B(E1); deduced β-decay populates a fraction of 1- levels associated with the pygmy dipole resonance.
doi: 10.1103/PhysRevLett.116.132501
2016TA22 Eur.Phys.J. A 52, 347 (2016), Erratum Eur.Phys.J. A 52, 375 (2016) J.Taprogge, A.Jungclaus, H.Grawe, I.N.Borzov, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt Proton-hole and core-excited states in the semi-magic nucleus 131In82 RADIOACTIVITY 131Cd(β-)[from 238U on 9Be at 345 MeV/nucleon]; measured Eγ, Iγ using EURICA array (84 Ge crystals around Si detectors), β-decay using WAS3ABi detector (8 DSSD's of 40x60 strips each), βγ-coin, other reaction products; deduced γ spectrum in prompt coincidence with first β decay, γ transitions, relative intensities, 131In level scheme, β feeding intensities (for transitions to excited states in 131In), excitation energies of several core-excited configurations; calculated log ft, β decay strength for GT allowed and first-forbidden β decay branches, excitation energies of core-excited configurations using shell model and QRPA.
doi: 10.1140/epja/i2016-16347-y
2016UR03 Phys.Rev. C 94, 011302 (2016) W.Urban, U.Koster, M.Jentschel, P.Mutti, B.Markisch, T.Rzaca-Urban, Ch.Bernards, Ch.Fransen, J.Jolie, T.Thomas, G.S.Simpson Precise measurement of energies in 115Sn following the (n, γ) reaction NUCLEAR REACTIONS 114Sn(n, γ), E=cold neutrons; measured primary and secondary Eγ, γγ-coin using eight large Ge detectors at PF1B facility of ILL-Grenoble. 115Sn; deduced levels, S(n). RADIOACTIVITY 115In(β-); deduced precise Q(β-) for a highly-forbidden β- transition from 115In g.s. parent to a 497, 3/2+ level in 115Sn using precisely measured masses of relevant nuclides and precise energy measurement of the 497.3-keV level in 115Sn from (n, γ).
doi: 10.1103/PhysRevC.94.011302
2016UR04 Phys.Rev. C 94, 044328 (2016) W.Urban, K.Sieja, T.Materna, M.Czerwinski, T.Rzaca-Urban, A.Blanc, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.S.Simpson, C.A.Ur, C.Bernards, C.Fransen, J.Jolie, J.-M.Regis, T.Thomas, N.Warr Low-spin structure of 8635Br51 and 8636Kr50 nuclei: The role of the g7/2 neutron orbital RADIOACTIVITY 86Se, 86Br(β-)[from 235U(n, γ), E=thermal neutrons from PF1B-ILL-Grenoble facility using Lohengrin fission-fragment separator]; measured Eγ, Iγ, γγ-coin for both decays, γγ(θ) and γγ(linear polarization) for 86Br decay using EXILL array of Ge detectors. 86Br, 86Kr; deduced levels, J, π, conversion coefficients, multipolarities, β feedings, logft. Comparison with large-scale shell-model calculations with refined interactions. NUCLEAR REACTIONS 235U(n, γ), E=thermal neutrons from PF1B-ILL-Grenoble facility; measured Eγ, Iγ, γγ-coin using EXILL array of Ge detectors, level half-life by γγ(t). 86Br; deduced levels, J, π, B(M2), B(E3).
doi: 10.1103/PhysRevC.94.044328
2015BR03 Acta Phys.Pol. B46, 721 (2015) F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, H.Watanabe, J.Wu, Z.Y.Xu, H.Baba, N.Chiga, R.Carroll, R.Daido, F.Didierjean, Y.Fang, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Naoki, H.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland, A.Yagi Gamma-ray Spectroscopy in the Vicinity of 108Zr RADIOACTIVITY 104,106Y, 106,108Nb(β-) [from Be(238U, X), E=345 MeV/nucleon; measured decay products, Eγ, Iγ; deduced T1/2, B(E2), γ-ray energies.
doi: 10.5506/APhysPolB.46.721
2015BR13 Phys.Lett. B 750, 448 (2015) F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, H.Watanabe, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, H.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland Lifetime measurements of the first 2+ states in 104, 106Zr: Evolution of ground-state deformations RADIOACTIVITY 106,104Y(β-) [from 9Be(238U, X), E=345 MeV/nucleon;]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2), deformation parameters. The first fast-timing measurements from nuclides produced via the in-flight fission mechanism, comparison with shell model calculations.
doi: 10.1016/j.physletb.2015.09.043
2015BU15 Phys.Rev. C 92, 064312 (2015) B.Bucher, H.Mach, A.Aprahamian, G.S.Simpson, J.Rissanen, D.G.Ghita, B.Olaizola, W.Kurcewicz, J.Aysto, I.Bentley, T.Eronen, L.M.Fraile, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, M.Reponen, E.Ruchowska, A.Saastamoinen, M.K.Smith, C.Weber New lifetime measurements in 109Pd and the onset of deformation at N=60 RADIOACTIVITY 109Rh(β-)[from U(p, F), E=30 MeV at IGISOL facility of University of Jyvaskyla]; measured Eγ, Iγ, γγ-, βγγ-coin, level half-lives by fast timing βγγ(t) technique. 109Pd; deduced levels, J, π, configuration, B(M1), B(E2), B(E1); discussed strong pn interaction between πg9/2 and νg7/2 valence nucleons. Systematics of band structures, (d, p) and (d, t) spectroscopic strengths in 101,103,105,107,109,111Pd. Systematics of 7/2+ and 5/2+ states in odd-A Pd, Rh and Ag isotopes.
doi: 10.1103/PhysRevC.92.064312
2015CZ01 Phys.Rev. C 92, 014328 (2015) M.Czerwinski, T.Rzaca-Urban, W.Urban, P.Baczyk, K.Sieja, B.M.Nyako, J.Timar, I.Kuti, T.G.Tornyi, L.Atanasova, A.Blanc, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.S.Simpson, C.A.Ur Neutron-proton multiplets in the nucleus 88Br NUCLEAR REACTIONS 235U(n, F), E=cold neutrons; measured Eγ, Iγ, γγ-coin, γγ-coin with γ rays from complementary fission fragments 145,146La, delayed γ spectra, level half-lives by γ(t), γγ(θ) using EXILL array of Ge detectors at the PF1B facility of ILL-Grenoble. 95,97Sr; measured level half-lives of isomers by γγ(t). 145,146La; measured Eγ, γγ-coin. 88Br; deduced levels, J, π, multipolarity, mixing ratio, configurations, single-particle estimates of partial half-lives for decay branches of the 1787.3-keV level, proton-neutron multiplets. Comparison with detailed shell-model calculations, and with levels in 86Br.
doi: 10.1103/PhysRevC.92.014328
2015JO01 Nucl.Phys. A934, 1 (2015) J.Jolie, J.-M.Regis, D.Wilmsen, N.Saed-Samii, M.Pfeiffer, N.Warr, A.Blanc, M.Jentschel, U.Koster, P.Mutti, T.Soldner, G.S.Simpson, G.De France, W.Urban, F.Drouet, A.Vancraeyenest, A.M.Bruce, O.J.Roberts, L.M.Fraile, V.Paziy, A.Ignatov, S.Kisyov, S.Lalkovski, Zs.Podolyak, P.H.Regan, E.Wilson, W.Korten, C.A.Ur, R.Lica, N.Marginean Test of the SO(6) selection rule in 196Pt using cold-neutron capture NUCLEAR REACTIONS 195Pt(n, γ), E=cold; measured Eγ, Iγ(t), γγ-coin using EXOGAM Ge detectors and fast LaBr3(Ce) scintillators. 196Pt deduced levels, J, π, 0+3 state B(E2), T1/2 limit, decay selection rules.
doi: 10.1016/j.nuclphysa.2014.11.008
2015LO04 Phys.Rev.Lett. 114, 192501 (2015) G.Lorusso, S.Nishimura, Z.Y.Xu, A.Jungclaus, Y.Shimizu, G.S.Simpson, P.-A.Soderstrom, H.Watanabe, F.Browne, P.Doornenbal, G.Gey, H.S.Jung, B.Meyer, T.Sumikama, J.Taprogge, Zs.Vajta, J.Wu, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, T.Kajino, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, P.Schury, S.Shibagaki, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, A.Yagi, K.Yoshinaga β-Decay Half-Lives of 110 Neutron-Rich Nuclei across the N=82 Shell Gap: Implications for the Mechanism and Universality of the Astrophysical r Process RADIOACTIVITY 134,135,136,137,138,139Sn, 128,129,130,131,132,133,134,135,136,137In, 126,127,128,129,130,131,132,133,134Cd, 124,125,126,127,128,129,130,131,132Ag, 121,122,123,124,125,126,127,128,129Pd, 118,119,120,121,122,123,124,125,126,127Rh, 116,117,118,119,120,121,122,123,124Ru, 112,113,114,115,116,117,118,119,120,121Tc, 109,110,111,112,113,114,115,116,117,118Mo, 107,108,109,110,111,112,113,114,115Nb, 106,107,108,109,110,111,112Zr, 104,105,106,107,108,109Y, 103,104,105,106Sr, 102,103Rb(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced T1/2; Calculated r-process abundances. Comparison with available data.
doi: 10.1103/PhysRevLett.114.192501
2015TA13 Phys.Rev. C 91, 054324 (2015) J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt β decay of 129Cd and excited states in 129In RADIOACTIVITY 129,129mCd(β-)[from 9Be(238U, F), E=345 MeV/nucleon using BigRIPS at RIBF-RIKEN]; measured Eγ, Iγ, Eβ, γγ-, βγ-coin, half-lives of ground and isomer states using WAS3ABi setup and EURICA array of HPGe detectors at RIKEN. 129In; deduced levels, J, π, energy of β decaying 1/2- isomer, Iβ, logft, B(GT) strengths, configuration. Comparison of level energies, J, π with shell-model calculations.
doi: 10.1103/PhysRevC.91.054324
2014IL01 Phys.Rev. C 89, 014313 (2014) S.Ilieva, M.Thurauf, Th.Kroll, R.Krucken, T.Behrens, V.Bildstein, A.Blazhev, S.Bonig, P.A.Butler, J.Cederkall, T.Davinson, P.Delahaye, J.Diriken, A.Ekstrom, F.Finke, L.M.Fraile, S.Franchoo, Ch.Fransen, G.Georgiev, R.Gernhauser, D.Habs, H.Hess, A.M.Hurst, M.Huyse, O.Ivanov, J.Iwanicki, P.Kent, O.Kester, U.Koster, R.Lutter, M.Mahgoub, D.Martin, P.Mayet, P.Maierbeck, T.Morgan, O.Niedermeier, M.Pantea, P.Reiter, T.R.Rodriguez, Th.Rolke, H.Scheit, A.Scherillo, D.Schwalm, M.Seidlitz, T.Sieber, G.S.Simpson, I.Stefanescu, S.Thiel, P.G.Thirolf, J.Van de Walle, P.Van Duppen, D.Voulot, N.Warr, W.Weinzierl, D.Weisshaar, F.Wenander, A.Wiens, S.Winkler Coulomb excitation of neutron-rich Cd isotopes NUCLEAR REACTIONS 108Pd(122Cd, 122Cd'), 64Zn, 104Pd(124Cd, 124Cd'), 64Zn(126Cd, 126Cd'), E=2.85 MeV/nucleon, [secondary 122,124,126Cd beams from 238U(p, X), E=1.2 GeV primary reaction]; measured Eγ, Iγ, particle spectra, γγ-, (particle)γ-coin, γ-ray yields, γ(θ), σ(θ), half-life of first 2+ state of 126Cd by DSAM using REXTRAP and EBIS setup, Miniball array for γ rays and DSSDs for particle detection at REX-ISOLDE-CERN facility. 122,124,126Cd; deduced levels, Coulomb-excitation σ, transition and diagonal matrix elements, static quadrupole moments, and B(E2) for first 2+ states. Comparison with shell model and beyond mean field calculations. Discussed onset of collectivity in the vicinity of Z=50 and N=82 shell closures. Systematics of experimental and theoretical values of B(E2) for first 2+ states in A=116-130 even Cd isotopes.
doi: 10.1103/PhysRevC.89.014313
2014KU28 Phys.Rev. C 90, 064315 (2014) J.Kurpeta, W.Urban, A.Plochocki, T.Rzaca-Urban, A.G.Smith, J.F.Smith, G.S.Simpson, I.Ahmad, J.P.Greene, A.Jokinen, H.Penttila Neutron configurations in 113Pd RADIOACTIVITY 248Cm, 252Cf(SF); measured prompt Eγ, Iγ, γγ-coin using EOROGAM-II array at Jyvaskyla and Gammasphere array at ANL. 113Pd; deduced levels, J, π, bands configuration, staggering, alignments Comparison with band structures of 109Mo, 109,112,113Pd, 110,111Ru. Discussed possible oblate-shape of low-energy bandheads. 113Rh(β-)[from 238U(p, X), E=25 MeV using IGISOL at Jyvaskyla, followed by mass separation]; measured Eγ, Iγ, Eβ, βγ-, γγ-coin. 113Pd; deduced levels, J, π, logft, configurations, B(GT) strengths and comparison with those from 113Ru to 113Rh decay.
doi: 10.1103/PhysRevC.90.064315
2014LI32 Phys.Rev. C 90, 014320 (2014) R.Lica, N.Marginean, D.G.Ghita, H.Mach, L.M.Fraile, G.S.Simpson, A.Aprahamian, C.Bernards, J.A.Briz, B.Bucher, C.J.Chiara, Z.Dlouhy, I.Gheorghe, P.Hoff, J.Jolie, U.Koster, W.Kurcewicz, R.Marginean, B.Olaizola, V.Paziy, J.M.Regis, M.Rudigier, T.Sava, M.Stanoiu, L.Stroe, W.B.Walters Low-lying isomeric states in 80Ga from the β- decay of 80Zn RADIOACTIVITY 80Zn(β-)[from U(p, X), E=1.4 GeV]; measured Eγ, Iγ, γγ-, βγ-coin, half-life of 708-keV level in 80Zn by βγγ(t) at ISOLDE-CERN facility. 80Ga; deduced levels, ordering of the ground state and long-lived isomer, J, π, conversion coefficient, multipolarities, β feedings, logft, reduced transition probabilities. Comparison with shell model calculations using jj44bpn and JUN45 interactions.
doi: 10.1103/PhysRevC.90.014320
2014MU03 Phys.Rev. C 89, 044309 (2014) S.Muto, N.J.Stone, C.R.Bingham, J.R.Stone, P.M.Walker, G.Audi, C.Gaulard, U.Koster, J.Nikolov, K.Nishimura, T.Ohtsubo, Z.Podolyak, L.Risegari, G.S.Simpson, M.Veskovic, W.B.Walters Magnetic properties of 177Hf and 180Hf in the strong-coupling deformed model NUCLEAR REACTIONS Ta, W(p, X), E=1.4 GeV; measured Eγ, Iγ, γ(θ, temp), resonance, magnetic dipole moment of 37/2- isomer in 177Hf and 8- isomer in 180Hf using NICOLE on-line low-temperature nuclear orientation system and NMR at ISOLDE-CERN facility. 177,180Hf; deduced high-spin levels, multipolarity, mixing ratio, (gK-gR)/Q0. Comparison with previous experimental results. NUCLEAR MOMENTS 177,180Hf; measured magnetic moments of high-spin K-isomers by on-line low-temperature nuclear orientation combined with NMR using NICOLE system at ISOLDE-CERN facility. Discussed dependence of gR parameter upon the quasiproton and quasineutron structure of high-K isomeric states in this mass region.
doi: 10.1103/PhysRevC.89.044309
2014PA55 Phys.Rev.Lett. 113, 262502 (2014) Z.Patel, P.-A.Soderstrom, Zs.Podolyak, P.H.Regan, P.M.Walker, H.Watanabe, E.Ideguchi, G.S.Simpson, H.L.Liu, S.Nishimura, Q.Wu, F.R.Xu, F.Browne, P.Doornenbal, G.Lorusso, S.Rice, L.Sinclair, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, R.Daido, Y.Fang, N.Fukuda, G.Gey, S.Go, A.Gottardo, N.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, T.Komatsubara, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.-B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, E.Sahin, H.Sakurai, H.Schaffner, H.Suzuki, H.Takeda, M.Tanaka, J.taprogge, Zs.Vajta, A.Yagi, R.Yokoyama Isomer Decay Spectroscopy of 164Sm and 166Gd: Midshell Collectivity Around N=100 NUCLEAR REACTIONS 9Be(238U, X)166Gd/164Sm, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced level energies, intensities, J, π, isomeric state T1/2. Total energy surface calculations.
doi: 10.1103/PhysRevLett.113.262502
2014RE15 Phys.Rev. C 90, 067301 (2014) J.-M.Regis, J.Jolie, N.Saed-Samii, N.Warr, M.Pfeiffer, A.Blanc, M.Jentschel, U.Koster, P.Mutti, T.Soldner, G.S.Simpson, F.Drouet, A.Vancraeyenest, G.de France, E.Clement, O.Stezowski, C.A.Ur, W.Urban, P.H.Regan, Zs.Podolyak, C.Larijani, C.Townsley, R.Carroll, E.Wilson, L.M.Fraile, H.Mach, V.Paziy, B.Olaizola, V.Vedia, A.M.Bruce, O.J.Roberts, J.F.Smith, T.Kroll, A.-L.Hartig, A.Ignatov, S.Ilieva, M.Thurauf, S.Lalkovski, D.Ivanova, S.Kisyov, W.Korten, M.-D.Salsac, M.Zielinska, N.Marginean, D.G.Ghita, R.Lica, C.M.Petrache, A.Astier, R.Leguillon B(E2;2+1 → 0+1) value in 90Kr NUCLEAR REACTIONS 235U(n, F), E=cold; measured prompt-fission Eγ, γγγ-coin, half-life of first 2+ state in 90Kr by fast timing technique using segmented array of Ge and Ce-doped LaBr3 detectors (EXILL and FATIMA) at ILL, Grenoble facility. 90Kr; deduced level, B(E2) of first 2+ state. Systematics of B(E2) values of first 2+ states in 86,88,90,92,94,96Kr. Comparison with IBM-2 calculations.
doi: 10.1103/PhysRevC.90.067301
2014RE16 Nucl.Instrum.Methods Phys.Res. A763, 210 (2014) J.-M.Regis, G.S.Simpson, A.Blanc, G.de France, M.Jentschel, U.Koster, P.Mutti, V.Paziy, N.Saed-Samii, T.Soldner, C.A.Ur, W.Urban, A.M.Bruce, F.Drouet, L.M.Fraile, S.Ilieva, J.Jolie, W.Korten, T.Kroll, S.Lalkovski, H.Mach, N.Marginean, G.Pascovici, Zs.Podolyak, P.H.Regan, O.J.Roberts, J.F.Smith, C.Townsley, A.Vancraeyenest, N.Warr Germanium-gated γ-γ fast timing of excited states in fission fragments using the EXILL and FATIMA spectrometer NUCLEAR REACTIONS 235U(n, F), E cold; 35Cl, 48Ti(n, γ), E thermal; measured reaction products, Eγ, Iγ. 100Zr; deduced energy levels, J, π, T1/2. Comparison with available data.
doi: 10.1016/j.nima.2014.06.004
2014SI18 Phys.Rev.Lett. 113, 132502 (2014) G.S.Simpson, G.Gey, A.Jungclaus, J.Taprogge, S.Nishimura, K.Sieja, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, H.Suzuki, H.Takeda, Z.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, S.Bonig, J.-M.Daugas, F.Drouet, R.Gernhauser, S.Ilieva, T.Kroll, A.Montaner-Piza, K.Moschner, D.Mucher, H.Naidja, H.Nishibata, F.Nowacki, A.Odahara, R.Orlandi, K.Steiger, A.Wendt Yrast 6+ Seniority Isomers of 136, 138Sn NUCLEAR REACTIONS Be(238U, X)136Sn/138Sn, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, intensities, isomeric states T1/2, seniority-2 coupling scheme, B(E2) for 6+ state. Comparison with shell model calculations, available data.
doi: 10.1103/PhysRevLett.113.132502
2014TA07 Phys.Rev.Lett. 112, 132501 (2014) J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt 1p3/2 Proton-Hole State in 132Sn and the Shell Structure Along N= 82 RADIOACTIVITY 132Cd(β-n) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell model calculations.
doi: 10.1103/PhysRevLett.112.132501
2014TA29 Phys.Lett. B 738, 223 (2014) J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, Z.Y.Xu, P.Doornenbal, G.Lorusso, E.Nacher, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt Identification of a millisecond isomeric state in 129Cd81 via the detection of internal conversion and Compton electrons NUCLEAR REACTIONS Be(238U, X)129Cd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced ICC and γ-ray yields, energy levels, J, π, isomeric state T1/2, B(E3). Comparison with shell model calculations.
doi: 10.1016/j.physletb.2014.09.047
2014WA26 Phys.Rev.Lett. 113, 042502 (2014) H.Watanabe, G.Lorusso, S.Nishimura, T.Otsuka, K.Ogawa, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, Z.Li, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga Monopole-Driven Shell Evolution below the Doubly Magic Nucleus 132Sn Explored with the Long-Lived Isomer in 126Pd NUCLEAR REACTIONS Be(238U, X)126Pd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell model calculations. RADIOACTIVITY 126Pd(IT), (β-); measured decay products, Eγ, Iγ; deduced energy levels, J, π, T1/2. Comparison with shell model calculations.
doi: 10.1103/PhysRevLett.113.042502
2013AL05 Nucl.Phys. A899, 1 (2013); Erratum Nucl.Phys. A947, 260 (2016) M.Albers, K.Nomura, N.Warr, A.Blazhev, J.Jolie, D.Mucher, B.Bastin, C.Bauer, C.Bernards, L.Bettermann, V.Bildstein, J.Butterworth, M.Cappellazzo, J.Cederkall, D.Cline, I.Darby, S.Das Gupta, J.M.Daugas, T.Davinson, H.De Witte, J.Diriken, D.Filipescu, E.Fiori, C.Fransen, L.P.Gaffney, G.Georgiev, R.Gernhauser, M.Hackstein, S.Heinze, H.Hess, M.Huyse, D.Jenkins, J.Konki, M.Kowalczyk, T.Kroll, R.Krucken, J.Litzinger, R.Lutter, N.Marginean, C.Mihai, K.Moschner, P.Napiorkowski, B.S.Nara Singh, K.Nowak, J.Pakarinen, M.Pfeiffer, D.Radeck, P.Reiter, S.Rigby, L.M.Robledo, R.Rodriguez-Guzman, M.Rudigier, M.Scheck, M.Seidlitz, B.Siebeck, G.S.Simpson, P.Thole, T.Thomas, J.Van de Walle, P.Van Duppen, M.Vermeulen, D.Voulot, R.Wadsworth, F.Wenander, K.Wimmer, K.O.Zell, M.Zielinska Shape dynamics in neutron-rich Kr isotopes: Coulomb excitation of 92Kr, 94Kr and 96Kr NUCLEAR REACTIONS 194,196Pt(92Kr, 92Kr'), (94Kr, 94Kr'), (96Kr, 96Kr'), E=2.85 MeV/nucleon; measured projectile and target E, I(θ, t) using DSSD, Eγ, Iγ(θ) from Coulomb excitation using HPGe array and considering Doppler correction, (particle)γ-coin; calculated electromagnetic matrix elements, γ-ray yields using CC code GOSIA2, energy vs deformation using IBM-2 with self-consistent constrained HFB with Gogny functional; deduced Coulomb excitation σ, electromagnetic matrix elements using fit to data, B(E2), quadrupole moments, IBM-2 Hamiltonian parameters. 96Kr calculated levels, J, π; deduced shape coexistence.
doi: 10.1016/j.nuclphysa.2013.01.013
2013CZ02 Phys.Rev. C 88, 044314 (2013) M.Czerwinski, T.Rzaca-Urban, K.Sieja, H.Sliwinska, W.Urban, A.G.Smith, J.F.Smith, G.S.Simpson, I.Ahmad, J.P.Greene, T.Materna Yrast excitations in the neutron-rich N=52 isotones RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array at ANL. 88Kr; deduced levels, J, π, mixing ratio, multipolarity. 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array for 252Cf, and Eurogam2 array in a previous experiment for 248Cm. 86Se; deduced levels, J, π. 160Sm, 162Gd; observed γ rays from γγ-coin with complementary fission fragments. Comparison with shell-model calculations, and systematics of N=52 even-even nuclei. NUCLEAR STRUCTURE 82Zn, 84Ge, 86Se, 88Kr, 90Sr, 94Mo, 96Ru; calculated levels, J, π using shell model. Systematics of yrast states up to 8+ of even-even N=52 Ge, Se, Kr, Sr, Zr, Mo and Ru nuclei. 82Zn; predicted energies of first 2+ and 4+ states from systematics. Comparison with experimental data.
doi: 10.1103/PhysRevC.88.044314
2013LA11 Phys.Rev. C 87, 034308 (2013) S.Lalkovski, A.M.Bruce, A.Jungclaus, M.Gorska, M.Pfutzner, L.Caceres, F.Naqvi, S.Pietri, Zs.Podolyak, G.S.Simpson, K.Andgren, P.Bednarczyk, T.Beck, J.Benlliure, G.Benzoni, E.Casarejos, B.Cederwall, F.C.L.Crespi, J.J.Cuenca-Garcia, I.J.Cullen, A.M.D.Bacelar, P.Detistov, P.Doornenbal, G.F.Farrelly, A.B.Garnsworthy, H.Geissel, W.Gelletly, J.Gerl, J.Grebosz, B.Hadinia, M.Hellstrom, C.Hinke, R.Hoischen, G.Ilie, G.Jaworski, J.Jolie, A.Khaplanov, S.Kisyov, M.Kmiecik, I.Kojouharov, R.Kumar, N.Kurz, A.Maj, S.Mandal, V.Modamio, F.Montes, S.Myalski, M.Palacz, W.Prokopowicz, P.Reiter, P.H.Regan, D.Rudolph, H.Schaffner, D.Sohler, S.J.Steer, S.Tashenov, J.Walker, P.M.Walker, H.Weick, E.Werner-Malento, O.Wieland, H.J.Wollersheim, M.Zhekova Core-coupled states and split proton-neutron quasiparticle multiplets in 122-126Ag NUCLEAR REACTIONS 9Be(136Xe, X), (238U, F), E=750 MeV/nucleon; measured Eγ, Iγ, γγ-coin, γ(t), half-lives of isomers. FRS separator and RISING array at GSI facility. 122,123,124,125,126Ag; deduced high-spin levels, isomers, total conversion coefficients, multipolarity, J, π, B(E2). Level systematics of odd-A Ag nuclei with N=50-82. Comparison with shell-model calculations. NUCLEAR STRUCTURE 123,124,125,126,127,128,129Ag; calculated levels, J, π by shell-model using jj45pna interaction.
doi: 10.1103/PhysRevC.87.034308
2013OL06 Phys.Rev. C 88, 044306 (2013) B.Olaizola, L.M.Fraile, H.Mach, A.Aprahamian, J.A.Briz, J.Cal-Gonzalez, D.Ghita, U.Koster, W.Kurcewicz, S.R.Lesher, D.Pauwels, E.Picado, A.Poves, D.Radulov, G.S.Simpson, J.M.Udias β- decay of 65Mn to 65Fe RADIOACTIVITY 65Mn(β-), (β-n)[from U(p, X), E=1.4 GeV, RILIS]; measured Eγ, Iγ, Eβ, βγ-, βγγ-, γγ-coin, βγγ(t), half-life of 65Mn ground state, half-lives of 65Fe levels by fast timing, β-delayed neutron emission probability Pn at ISOLDE, CERN facility. 65Fe; deduced levels, isomer, J, π, multipolarity, B(M1), B(E1), B(E2), β feedings, logft. 64Fe, 64Co, 65mFe, 65Ni(β-); measured Eγ, Iγ of selected γ rays to deduce ground state β feeding in the decay of 65Mn to 65Fe. Comparison with shell-model calculations. 64Fe; deduced levels populated by β-n decay mode. Systematics of energies and B(E2) values of first 2+ states in Z=24, 26, 28, N=34-46 nuclei.
doi: 10.1103/PhysRevC.88.044306
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
2013SO17 Phys.Rev. C 88, 024301 (2013) P.-A.Soderstrom, G.Lorusso, H.Watanabe, S.Nishimura, P.Doornenbal, G.Thiamova, F.Browne, G.Gey, H.S.Jung, T.Sumikama, J.Taprogge, Zs.Vajta, J.Wu, Z.Y.Xu, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, A.Yagi, K.Yoshinaga Shape evolution in 116,118Ru: Triaxiality and transition between the O(6) and U(5) dynamical symmetries RADIOACTIVITY 116,118Tc(β-)[from Be(238U, X), E=345 MeV/nucleon]; measured Eγ, Iγ, βγ-, γγ-coin using EURICA array and WAS3ABi counting system at RIBF, RIKEN facility. 116,118Ru; deduced levels, J, p, bands, kinematic moments of inertia, energy staggering of quasi-γ bands. Comparison with IBM, algebraic collective model, and cranked shell-model calculations. Systematics of first 2+ and 4+ states in N=62-74 Pd, Ru and Mo nuclei. Discussed O(6) and U(5) symmetries. NUCLEAR STRUCTURE 116,118Ru; calculated levels, J, π. Interacting boson model, algebraic collective model, and total Routhian surfaces. Comparison with experimental data.
doi: 10.1103/PhysRevC.88.024301
2013UR01 Phys.Rev. C 87, 031304 (2013) W.Urban, M.Jentschel, R.F.Casten, J.Jolie, Ch.Bernards, B.Maerkisch, Th.Materna, P.Mutti, L.Prochniak, T.Rzaca-Urban, G.S.Simpson, V.Werner, S.Ahmed 02+ band in 102Ru and the evolution of nuclear deformation in Ru isotopes NUCLEAR REACTIONS 101Ru(n, γ), E=cold neutrons; measured Eγ, Iγ, γγ-coin, γγ(θ) using PF1B cold-neutron facility and GAMS5 spectrometer at Grenoble. 102Ru; deduced levels, J, π, bands, multipolarity, mixing ratio, interaction pattern between 0+ states. Systematics of 0+2 bands and other low-lying levels in Ru isotopes from N=50-66.
doi: 10.1103/PhysRevC.87.031304
2013WA24 Phys.Rev.Lett. 111, 152501 (2013) H.Watanabe, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga Isomers in 128Pd and 126Pd: Evidence for a Robust Shell Closure at the Neutron Magic Number 82 in Exotic Palladium Isotopes NUCLEAR REACTIONS 9Be(238U, X), E=345 MeV/nucleon; measured Eγ, Iγ, (fragment)γ-coin, Eβ, ce, isomer half-lives using BigRIPS, ZeroDegree spectrometers at RIBF facility in RIKEN. Gamma rays detected with EURICA array of 12 Cluster HPGe detectors. 126,128Pd; deduced levels, isomers, J, π, conversion coefficient, multipolarity, B(E2), B(E1), B(E3), configuration, seniority scheme for isomers. N=82 shell closure in neutron rich Pd nuclei.
doi: 10.1103/PhysRevLett.111.152501
2012MA03 Acta Phys.Pol. B43, 247 (2012) T.Malkiewicz, G.S.Simpson, W.Urban, J.Genevey, J.A.Pinston, I.Ahmad, J.P.Greene, U.Koster, T.Materna, M.Ramdhane, T.Rzaca-Urban, A.G.Smith, G.Thiamova Recent Studies of Odd-A, Neutron-rich Pr Isotopes NUCLEAR REACTIONS 241Am(n, F)151Pr, E=thermal; measured reaction products, Eγ, Iγ; deduced level energies, J, π, E1 multipolarity transition. Comparison with QPRM calculations.
doi: 10.5506/APhysPolB.43.247
2012MA13 Phys.Rev. C 85, 044314 (2012) T.Malkiewicz, G.S.Simpson, W.Urban, J.Genevey, U.Koster, T.Materna, J.A.Pinston, M.Ramdhane, T.Rzaca-Urban, G.Thiamova, A.G.Smith, I.Ahmad, J.P.Greene Near-yrast structure of odd-A, neutron-rich Pr isotopes RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), using EUROGAM-II, and Gammasphere arrays. 151,153Pr; deduced high-spin levels, J, π, multipolarity, rotational bands, alignments, configurations, mass correlation plots. Comparison with reflection-symmetric quasi-particle-rotor model (QPRM) calculations. 93Rb, 99Y, 99,101Zr, 107Tc, 148Ce; measured Eγ, γγ-coin. NUCLEAR REACTIONS 241Am(n, F), E=thermal; measured Eγ, Iγ, ce, (fragment)γ-coin, delayed γ, ce, half-lives. 151Pr; deduced levels, J, π, conversion coefficients, multipolarities, bands, Nilsson configurations. Comparison with QRPM calculations. NUCLEAR STRUCTURE 151,153Pr; calculated levels, J, π, rotational bands. Quasi-particle-rotor model using computer codes GAMPN, ASYRMO, and PROBAMO.
doi: 10.1103/PhysRevC.85.044314
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