NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = T.Rzaca-Urban Found 127 matches. Showing 1 to 100. [Next]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
2022RZ01 Phys.Rev. C 106, 024322 (2022) T.Rzaca-Urban, K.Sieja, M.Czerwinski, J.Kurpeta, M.Pomorski, W.Urban, J.Wisniewski, M.Wroblewski, L.Canete, T.Eronen, S.Geldhof, A.Jokinen, A.Kankainen, I.D.Moore, D.Nesterenko, H.Penttila, I.Pohjalainen, S.Rinta-Antila, A.de Roubin, M.Vilen Low-spin excitations in 89Br populated in β- decay of 89Se RADIOACTIVITY 89Se(β-), (β-n)[from U(p, F), E=30 MeV, followed by separation of fragments using Ion Guide Isotope Separator On-Line (IGISOL) facility and JYFLTRAP at Jyvaskyla]; measured fission fragment yields, Eγ, Iγ, γγ-coin. 89Se; deduced J, π, T1/2, %β-n or Pn for g.s. decay. 89Br; deduced levels, J, π, multipolarities, β feedings, Gamow-Teller transition, logft, configurations, occupation of neutron and proton orbitals. 88Br; deduced levels, J, π. Comparison with large-scale shell-model calculations. Systematics of level energies, J, π in 83,85,87As, 69,71,73,75,77,79,81,83,85,87,89Br, 87,89,91Rb, 89,91,93Y, 91,93,95Nb.
doi: 10.1103/PhysRevC.106.024322
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
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
2019KU16 Phys.Rev. C 100, 034316 (2019) J.Kurpeta, A.Plochocki, W.Urban, A.Abramuk, L.Canete, T.Eronen, A.Fijalkowska, S.Geldhof, K.Gotowicka, A.Jokinen, A.Kankainen, I.D.Moore, D.Nesterenko, H.Penttila, I.Pohjalainen, M.Pomorski, M.Reponen, S.Rinta-Antila, A.de Roubin, T.Rzaca-Urban, M.Vilen, J.Wisniewski First β-decay scheme of 107Nb: New insight into the low-energy levels of 107Mo RADIOACTIVITY 107Nb(β-)[from U(p, F), E=25 MeV from the K-130 cyclotron at the University of Jyvaskyla, followed by separation of fission fragments using IGISOL-4 for mass separation, and JYFLTRAP Penning trap for isobaric purification]; measured yields of Mo and Nb ions, Eγ, Iγ, γγ- and βγ-coin, γ(Kα x-ray)-coin, half-life of the decay of 107Nb using a plastic scintillator for β particles and three Ge detectors for low-energy γ rays. 107Mo; deduced levels, J, π, bands, K-conversion coefficients for three transitions, total conversion coefficient for one transition, multipolarities, β feedings, logft. Systematics of energies of the first and second 1/2+ levels in N=55-71, Z(even)=40-46. Comparison of the experimental γ-ray transition intensities between low-lying levels in 105Mo and 107Mo. Discussed the revised energy of the 420-ns isomer.
doi: 10.1103/PhysRevC.100.034316
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
2019WI11 Phys.Rev. C 100, 054331 (2019) J.Wisniewski, W.Urban, M.Czerwinski, J.Kurpeta, A.Plochocki, M.Pomorski, T.Rzaca-Urban, K.Sieja, L.Canete, T.Eronen, S.Geldhof, A.Jokinen, A.Kankainen, I.D.Moore, D.A.Nesterenko, H.Penttila, I.Pohjalainen, S.Rinta-Antila, A.de Roubin, M.Vilen Excited states in 87Br populated in β decay of 87Se RADIOACTIVITY 87Se(β-)[from Th(p, F), E=25 MeV using the IGISOL technique, then separated on a dipole magnet and JYFLTRAP Penning trap setup]; measured Eγ, Iγ, γγ-coin using an array of six high-resolution Ge detectors with thin carbon windows at the University of Jyvaskyla. 87Br; deduced levels, J, π, β feedings, logft values, configurations. 87Se; deduced ground-state Jπ. Comparison with large-scale shell-model calculations, and with previous experimental results.
doi: 10.1103/PhysRevC.100.054331
2018KU13 Phys.Rev. C 98, 024318 (2018) J.Kurpeta, A.Plochocki, W.Urban, T.Eronen, A.Jokinen, A.Kankainen, V.S.Kolhinen, I.D.Moore, H.Penttila, M.Pomorski, S.Rinta-Antila, T.Rzaca-Urban, J.Wisniewski Excited levels in the multishaped 117Pd nucleus studied via β decay of 117Rh RADIOACTIVITY 117Rh(β-)[from 238U(p, F), E=25 MeV followed by separation of 117Rh using IGISOL-4 mass separator coupled to the JYFLTRAP Penning trap at Jyvaskyla]; measured Eγ, Iγ, Pd x-rays, βγ-, (x-ray)γ- and γγ-coin, half-life of 117Rh decay from γ-decay curves using plastic scintillator for β detection and Ge detectors for γ detection. 117Pd; deduced levels, J, π, β feedings, logft values, configurations, Gamow-Teller transition strengths. 117Rh; deduced preliminary J and π of ground state from theoretical calculations and systematics of Rh isotopes. Systematics of low-spin levels in odd A=101-119 Rh isotopes and odd A=103-117 Pd isotopes, isomeric states and γ transitions in odd A=105-117 Pd isotopes, and negative-parity levels in odd A, N=57-71 Mo, Ru, and Pd isotopes.
doi: 10.1103/PhysRevC.98.024318
2018LO18 Phys.Rev. C 98, 024323 (2018) R.Lozeva, E.A.Stefanova, H.Naidja, F.Nowacki, T.Rzaca-Urban, J.Wisniewski, W.Urban, I.Ahmad, A.Blanc, G.De France, F.Didierjean, G.Duchene, H.Faust, J.P.Greene, U.Koster, P.Mutti, G.Simpson, A.G.Smith, T.Soldner, C.A.Ur New yrast and non-yrast states in 136I and medium-spin structure of 136I and 136Xe : Roles of the proton d5/2 and the neutron h9/2 orbitals beyond 132Sn NUCLEAR REACTIONS 235U, 241Pu(n, F)136I, E=thermal; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(linear pol) using the EXILL-FATIMA system, EXOGAM and EUROGAM clover HPGe detectors at ILL, Grenoble. 136I; deduced yrast and non-yrast levels, J, π, conversion coefficients, multipolarities, mixing ratios, configurations. Comparison with large scale shell-model calculations. RADIOACTIVITY 248Cm, 252Cf(SF); 136Te, 136I(β-)[136Te from 235U(n, F), E=thermal followed by separation of 136Te using Lohengrin fission-fragment separator at Grenoble, and 136I from 136Te decay]; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(lin pol). 136I, 136Xe; deduced levels, J, π, conversion coefficients, multipolarities, mixing ratios, configurations, Gamow-Teller strengths. Comparison with large scale shell-model calculations.
doi: 10.1103/PhysRevC.98.024323
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
2018WI06 Acta Phys.Pol. B49, 547 (2018) J.Wisniewski, W.Urban, T.Rzaca-Urban, U.Koster, C.Michelagnoli, M.Jentschel, P.Mutti Evolution of γ Collectivity - (n, γ) Spectroscopy of 98Mo with FIPPS* NUCLEAR REACTIONS 97Mo(n, γ), E=thermal; measured Eγ, Iγ, γγ-coin using Ge Clover detectors of new instrument FIPPS; deduced γ-ray energy spectrum gated on 787.4 and 5680.0 keV lines, new γ-ray lines; deduced 97Mo gs (5/2)+ allowing measurements γ-band properties, partial γ transitions of 98Mo, levels, J, π angular correlations of cascading γ-rays, mixing ratios, evolution of collectivity in Mo isotopes in its early stage.
doi: 10.5506/aphyspolb.49.547
2017CZ01 Phys.Rev. C 95, 024321 (2017) M.Czerwinski, K.Sieja, T.Rzaca-Urban, W.Urban, A.Plochocki, J.Kurpeta, J.Wisniewski, H.Penttila, A.Jokinen, S.Rinta-Antila, L.Canete, T.Eronen, J.Hakala, A.Kankainen, V.S.Kolhinen, J.Koponen, I.D.Moore, I.Pohjalainen, J.Reinikainen, V.Simutkin, A.Voss, I.Murray, C.Nobs Penning-trap-assisted study of excitations in 88Br β decay of 88Se RADIOACTIVITY 88Se(β-)[from U(p, F), E=30 MeV using Ion Guide Isotope Separator On-Line (IGISOL) facility and JYFLTRAP at Jyvaskyla]; measured yields of fission fragments, Eγ, Iγ, βγ- and γγ-coin, half-life of an isomer by γ(t). 88Br; deduced levels, J, π, total conversion coefficients from intensity balances, multipolarities, β feedings, log ft, configurations, comparison with large-scale shell-model calculations. NUCLEAR STRUCTURE 88Br; calculated levels, J, π, occupation of neutron and proton orbitals using large-scale shell-model. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.024321
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
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
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
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
2016BA13 Acta Phys.Pol. B47, 897 (2016) P.Baczyk, W.Urban, D.Zlotowska, M.Czerwinski, T.Rzaca-Urban, M.Konieczka, A.Blanc, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.Simpson, C.Ur Near-yrast Excitations in Nucleus 83As: Tracing the Deformation in the 78Ni Region NUCLEAR REACTIONS 235U(n, F)83As, E thermal; measured reaction products, Eγ, Iγ; deduced energy levels, J, π. Comparison with Nilsson model.
doi: 10.5506/APhysPolB.47.897
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
2016UR01 Phys.Rev. C 93, 034326 (2016) W.Urban, K.Sieja, T.Rzaca-Urban, M.Czerwinski, H.Naidja, F.Nowacki, A.G.Smith, I.Ahmad First evidence of γ collectivity close to the doubly magic core 132Sn RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 array. 138Te, 140Xe; deduced high-spin levels, J, π, bands, multipolarities, mixing ratios, configurations. Comparison with shell-model calculations. Systematics of negative- and positive-parity levels in N=86 isotones 136Sn, 138Te, 140Xe, 142Ba, 144Ce, 146Nd, 148Sm, 150Gd. 106,108Ru; observed γ rays. NUCLEAR STRUCTURE 138Te, 140Xe; calculated levels, J, π, B(E2), quadrupole moments, deformation parameter β using shell model.
doi: 10.1103/PhysRevC.93.034326
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
2015BA14 Phys.Rev. C 91, 047302 (2015) P.Baczyk, W.Urban, D.Zlotowska, M.Czerwinski, T.Rzaca-Urban, A.Blanc, M.Jentschel, P.Mutti, U.Koster, T.Soldner, G.de France, G.Simpson, C.A.Ur Near-yrast excitations in nucleus 83As: Tracing the πg9/2 orbital in the 78Ni region NUCLEAR REACTIONS 235U(n, F), E=cold neutrons; measured Eγ, Iγ, γγ-, γ(x ray)-coin, γγ(θ) using EXILL array at ILL-Grenoble facility. 83As; deduced levels, J, π, multipolarity, configuration. Comparison with available shell-model calculations, and with systematics of 9/2+ and 5/2- levels in N=30-50 Cu, Ga, As, Br and Rb nuclei.
doi: 10.1103/PhysRevC.91.047302
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
2015KO05 Phys.Rev. C 91, 027303 (2015) A.Korgul, P.Baczyk, W.Urban, T.Rzaca-Urban, A.G.Smith, I.Ahmad Investigation of the i13/2 neutron orbital in the 132Sn region: New excited levels in 135Sb RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 detector array. 135Sb; deduced high-spin levels, J, π, multipolarity, configuration. 132Sn; deduced energy of the i13/2 neutron single-particle orbital. Comparison with shell-model calculations using OXBASH code. Systematics of 3- states in N=82 and 13/2+ states in N=83, Sn, Te, Xe, Ba, Ce, Nd and Sm nuclei.
doi: 10.1103/PhysRevC.91.027303
2015MA51 Phys.Rev. C 92, 034305 (2015) T.Materna, W.Urban, K.Sieja, U.Koster, H.Faust, M.Czerwinski, T.Rzaca-Urban, C.Bernards, C.Fransen, J.Jolie, J.-M.Regis, T.Thomas, N.Warr Low spin structure of 86Se: Confirmation of γ collectivity at N=52 RADIOACTIVITY 86As(β-)[from 235U(n, F), E=thermal followed by mass separation using Lohengrin separator at ILL-Grenoble]; measured Eγ, Iγ, Eβ, βγ-, γγ-coin, γγ(θ). 86Se; deduced levels, J, π, γ collectivity. Comparison with systematics of neighboring nuclides, and with shell-model calculations. 94,96Y, 99Zr; observed γ rays. NUCLEAR STRUCTURE 86Se; calculated levels, J, π, B(M1), B(E2) using shell model. 84Ge, 86Se, 88Kr, 90Sr, 92Zr; calculated energies of second 2+ and 4+, and first 3+ states. Comparison with experimental values.
doi: 10.1103/PhysRevC.92.034305
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
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
2013RZ01 Phys.Rev. C 87, 031305 (2013) T.Rzaca-Urban, W.Urban, A.G.Smith, I.Ahmad, A.Syntfeld-Kazuch Unexpected 5/2- spin of the ground state in 147Ba: No octupole deformation in ground states of odd-A Ba isotopes RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 array. 147Ba; deduced levels, J, π, bands, multipolarity, alignments. Discussed parity doublets and octupole bands.
doi: 10.1103/PhysRevC.87.031305
2013RZ02 Phys.Rev. C 88, 034302 (2013) T.Rzaca-Urban, M.Czerwinski, W.Urban, A.G.Smith, I.Ahmad, F.Nowacki, K.Sieja First observation of excited states in 87Se: Collectivity and j- 1 anomaly at N=53 RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin with γ rays from complementary fragments, γγ(θ) using Eurogam2 array; deduced mass correlations. 87Se; deduced levels, J, π, multipolarity, configuration, coexistence of collective and single-particle excitations. Comparison with shell model calculations, and with structure of N=53 neighbors. 86,88Se, 146,148Ce, 156,158,160Sm; observed γ rays. NUCLEAR STRUCTURE 85Ge, 87Se, 89Kr, 91Sr, 93Zr, 95Mo, 97Ru; calculated levels, J, π, yrast states of N=53 isotones, B(E2), B(M1); discussed j-1 anomaly. Large-scale shell model calculations.
doi: 10.1103/PhysRevC.88.034302
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
2012KU06 Phys.Rev. C 85, 027302 (2012) J.Kurpeta, W.Urban, T.Materna, H.Faust, U.Koster, J.Rissanen, T.Rzaca-Urban, C.Mazzocchi, A.G.Smith, J.F.Smith, J.P.Greene, I.Ahmad Low-spin structure of 85Se and the βn branching of 85As RADIOACTIVITY 85As(β-)[from 235U(n, F)]; measured Eγ, Iγ, βγ-, γγ-coin. 85Se; deduced levels, J, π, configuration. 85As(β-n); discussed delayed neutron decay branch. RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin for prompt γ rays. 85Se; deduced levels, J, π. Eurogam2 and Gammasphere arrays.
doi: 10.1103/PhysRevC.85.027302
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
2012RZ01 Phys.Rev. C 86, 044324 (2012) T.Rzaca-Urban, W.Urban, J.A.Pinston, G.S.Simpson, A.G.Smith, I.Ahmad Reflection symmetry of the near-yrast excitations in 145Ba RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 array. 145Ba; deduced high-spin levels, J, π, conversion coefficients, multipolarity, mixing ratios, bands, alignments. Systematics of yrast levels in N=89 isotones 143Xe, 145Ba, 147Ce, 149Nd and 151Sm. Comparison of level energies with quasiparticle-rotor model calculations. No evidence of octupole deformation in the ground state.
doi: 10.1103/PhysRevC.86.044324
2012UR01 Phys.Rev. C 85, 014329 (2012) W.Urban, K.Sieja, G.S.Simpson, T.Soldner, T.Rzaca-Urban, A.Zlomaniec, I.Tsekhanovich, J.A.Dare, A.G.Smith, J.L.Durell, J.F.Smith, R.Orlandi, A.Scherillo, I.Ahmad, J.P.Greene, J.Jolie, A.Linneman Isomeric levels in 92Rb and the structure of neutron-rich 92, 94Rb isotopes RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), half-lives by γ(t), delayed and prompt γ. 92,94Rb; deduced levels, J, π, isomers, multipolarity, configuration, B(E1). EUROGAM2 and the GAMMASPHERE arrays. Comparison with large-scale shell-model calculations. NUCLEAR REACTIONS 235U(n, F), E=thermal; measured fission fragment spectra, Eγ, mass spectra, γ(fission fragment)-coin. 92Rb; deduced level, isomer. NUCLEAR STRUCTURE 92,94Rb; calculated levels, J, π. Large scale shell-model. Comparison with experimental data.
doi: 10.1103/PhysRevC.85.014329
2012UR04 Phys.Rev. C 86, 017301 (2012) W.Urban, T.Rzaca-Urban, A.Syntfeld-Kazuch, A.G.Smith, I.Ahmad Band structure of 149Ce RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin using EUROGAM2 array; deduced internal conversion coefficients, transition intensities of unobserved transitions. 149Ce; deduced levels, J, π, multipolarity, bands, configurations, B(E1)/B(E2), dipole moment D0, staggering in bands, alignments. No evidence found for parity doublets. Comparison with band structures and staggering in 153Sm, 155Gd.
doi: 10.1103/PhysRevC.86.017301
2011RZ01 Phys.Rev. C 83, 067301 (2011) T.Rzaca-Urban, W.Urban, J.A.Pinston, A.G.Smith, I.Ahmad Near-yrast, medium-spin structure of 143Xe RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), using EUROGAM-2 array. 143Xe; deduced levels, J, π, conversion coefficients, multipolarity, bands, configurations. Comparison with quasiparticle-rotor model calculations with a reflection-symmetric potential. Systematics of bandheads of N=89 nuclei.
doi: 10.1103/PhysRevC.83.067301
2010RZ01 Phys.Rev. C 82, 017301 (2010) T.Rzaca-Urban, W.Urban, J.A.Pinston, G.S.Simpson, J.L.Durell, A.G.Smith, I.Ahmad Medium-spin structure of 145Cs RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 array. 145Cs; deduced levels, J, π, multipolarities, bands, configurations, electric dipole moment D0. 101,102Nb; measured Eγ. Comparison with quasiparticle-rotor model calculations. Z=54-64, N=84-92; systematics of D0 parameter for even nuclei of even neutron number.
doi: 10.1103/PhysRevC.82.017301
2010RZ02 Phys.Rev. C 82, 067304 (2010) T.Rzaca-Urban, W.Urban, J.A.Pinston, G.S.Simpson, A.G.Smith, J.F.Smith, I.Ahmad Near-yrast structure of 149Pr RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, conversion coefficients, and half-life of isomer using EUROGAM2 and Gammasphere arrays. 149Pr; deduced levels, J, π, band, multipolarity, B(E1), electric dipole moment, configuration. Comparison with quasiparticle-rotor model calculations. 98,99,100,101Y; measured Eγ, γγ-coin.
doi: 10.1103/PhysRevC.82.067304
2010SI03 Phys.Rev. C 81, 024313 (2010) G.S.Simpson, W.Urban, J.A.Pinston, J.C.Angelique, I.Deloncle, H.R.Faust, J.Genevey, U.Koster, T.Materna, R.Orlandi, A.Scherillo, A.G.Smith, J.F.Smith, T.Rzaca-Urban, I.Ahmad, J.P.Greene Near-yrast structure of N=93 neutron-rich lanthanide nuclei NUCLEAR REACTIONS 239Pu(n, F), 241Am(n, F), E=thermal; measured Eγ, Iγ, ce, γγ-, (x ray)γ-, (ce)γ-, (fragment)γ-coin, delayed γ, and half-lives. 153Nd, 155Sm; deduced levels, J, π, conversion coefficients, multipolarities, bands, Nilsson configurations. Comparison with quasiparticle-rotor-model (QPRM) calculations. RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, and half-lives using Gammasphere and Eurogam-II arrays. 151Ce, 153Nd; deduced levels, J, π, bands, and configurations. Comparison with quasiparticle-rotor-model (QPRM) calculations. 151Ce, 153Nd, 155Sm, 157Gd, 159Dy; systematics of bandheads.
doi: 10.1103/PhysRevC.81.024313
2010SI17 Phys.Rev. C 82, 024302 (2010) G.S.Simpson, W.Urban, K.Sieja, J.A.Dare, J.Jolie, A.Linneman, R.Orlandi, A.Scherillo, A.G.Smith, T.Soldner, I.Tsekhanovich, B.J.Varley, A.Zlomaniec, J.L.Durell, J.F.Smith, T.Rzaca-Urban, H.Faust, I.Ahmad, J.P.Greene Near-yrast, medium-spin, excited states of 91Rb, 93Rb, and 95Rb NUCLEAR REACTIONS 235U(n, F)93Rb/95Rb; measured Eγ, Iγ, γγ-, (fragment)γ-coin, and half-lives using FIFI fragment identification system and Ge detector array. 93,95Rb; deduced levels, J, π, isomers, transition probabilities, and configurations. Comparison with shell-model calculations. RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), and half-lives using EUROGAM-II and Gammasphere arrays. 91,93,95Rb; deduced levels, J, π, isomers, transition probabilities, and configurations. Comparison with shell-model calculations. Systematics of low-lying levels in 89,91,93,95Rb. 93Rb, 95Y; comparison of experimental and calculated spectra.
doi: 10.1103/PhysRevC.82.024302
2010UR03 Phys.Rev. C 82, 064308 (2010) W.Urban, J.A.Pinston, T.Rzaca-Urban, J.Kurpeta, A.G.Smith, I.Ahmad Near-yrast, medium-spin structure of the 109Tc nucleus RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 array. 109Tc; deduced levels, J, π, conversion coefficients, multipolarities, rotational bands. 110Tc, 135,136,137I; measured Eγ. Comparison with level systematics of 103,105,107,109,111Tc. Comparison with quasiparticle-rotor model (QPRM) calculations. Evidence for triaxial nature of 109Tc. NUCLEAR STRUCTURE 107,109Tc; calculated levels, J, π, rotational bands, and γ-ray branching ratios using quasiparticle-rotor model (QPRM).
doi: 10.1103/PhysRevC.82.064308
2009RZ01 Phys.Rev. C 79, 024319 (2009) T.Rzaca-Urban, K.Sieja, W.Urban, F.Nowacki, J.L.Durell, A.G.Smith, I.Ahmad (h11/2, g7/2)9- neutron excitation in 92, 94, 96Sr RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γ(θ), γ(lin pol). 92,94,96Sr; deduced levels, J, π, multipolarity, bands, configurations. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.79.024319
2009RZ02 Phys.Rev. C 80, 064317 (2009) T.Rzaca-Urban, J.Genevey, T.Materna, W.Urban, A.G.Smith, J.A.Pinston, G.S.Simpson, M.P.Sadowski, U.Koster, H.Faust, A.Bail, L.Mathieu, O.Serot, F.Michel-Sendis, I.Ahmad Near-yrast structure of 142Cs and 144Cs RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), γ(t), and isomer half-lives using EUROGAM2 array. 142,144Cs; deduced levels, J, π, bands, isomers and configurations. Comparison with quasiparticle rotor model (QPRM) calculations. NUCLEAR REACTIONS 235U, 242Am(n, F)137Te/142Cs/144Cs, E=thermal; measured ionic charge distribution of fragments, Eγ, Iγ, ce, γ(ce)-, delayed γ(fragments)-, delayed (ce)(fragments)-coin using LOHENGRIN fragment separator. 142,144Cs; deduced levels and isomer half-lives.
doi: 10.1103/PhysRevC.80.064317
2009UR01 Phys.Rev. C 79, 037304 (2009) W.Urban, A.Zlomaniec, G.S.Simpson, H.Faust, T.Rzaca-Urban, M.Jentschel New information on medium-spin structure of 133Sb NUCLEAR REACTIONS 235U(n, X)133Sb, E=thermal; measured Eγ, Iγ, γγ-coin, γ(t), half-lives. 133Sb; deduced levels, J, π, configurations.
doi: 10.1103/PhysRevC.79.037304
2009UR02 Phys.Rev. C 79, 044304 (2009) W.Urban, K.Sieja, G.S.Simpson, H.Faust, T.Rzaca-Urban, A.Zlomaniec, M.Lukasiewicz, A.G.Smith, J.L.Durell, J.F.Smith, B.J.Varley, F.Nowacki, I.Ahmad New isomers and medium-spin structure of the 95Y nucleus RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), half-lives. 95Y; deduced levels, J, π, isomers, configurations. Comparisons with shell-model calculations. NUCLEAR REACTIONS 238U(n, F), E=thermal; measured Eγ, Iγ, γγ-coin, half-lives. 95Y; deduced levels, J, π, isomers.
doi: 10.1103/PhysRevC.79.044304
2009UR03 Phys.Rev. C 79, 067301 (2009) W.Urban, J.A.Pinston, T.Rzaca-Urban, E.Wolska, J.Genevey, G.S.Simpson, A.G.Smith, J.L.Durell, B.Varley, I.Ahmad Mapping neutron levels in the A ∼ 100 region: The ν3/2+ [411] band in 103Zr RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 103Zr; deduced levels, J, π, bands. 100,102,104Zr, 142,143,144Ba; measured Eγ. 100,101,102,103,104Zr; deduced mass correlations in fission of 248Cm. 99,101,103Zr; systematics of neutron configurations. Comparison of 103Zr levels with quasiparticle plus rotor model calculations.
doi: 10.1103/PhysRevC.79.067301
2009UR04 Phys.Rev. C 80, 037301 (2009) W.Urban, J.A.Pinston, G.S.Simpson, A.G.Smith, J.F.Smith, T.Rzaca-Urban, I.Ahmad The 11/2-[505] neutron extruder orbital in 159Sm RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 159Sm; deduced levels, J, π and half-lives. Systematics of 11/2[505] band in N=87-97 Sm, Gd and Dy nuclei. Comparison with quasiparticle rotor model calculations.
doi: 10.1103/PhysRevC.80.037301
2008LI08 Eur.Phys.J. A 35, 135 (2008) E.O.Lieder, A.A.Pasternak, R.M.Lieder, A.D.Efimov, V.M.Mikhajlov, B.G.Carlsson, I.Ragnarsson, W.Gast, Ts.Venkova, T.Morek, S.Chmel, G.de Angelis, D.R.Napoli, A.Gadea, D.Bazzacco, R.Menegazzo, S.Lunardi, W.Urban, Ch.Droste, T.Rzaca-Urban, G.Duchene, A.Dewald Investigation of lifetimes in quadrupole bands of 142Gd NUCLEAR REACTIONS 114Sn(32S, 2n2p), E=160 MeV; 99Ru(48Ti, 3n2p), E=240 MeV; measured Eγ, Iγ, γγ-coin, DSA. 142Gd deduced high-spin levels, J, π, B(E2), T1/2; calculated configurations with cranked Nilsson-Strutinsky and interacting boson models. Euroball III and IV arrays.
doi: 10.1140/epja/i2007-10533-0
2008TS03 Phys.Rev. C 78, 011301 (2008) I.Tsekhanovich, G.S.Simpson, W.Urban, J.A.Dare, J.Jolie, A.Linnemann, R.Orlandi, A.Scherillo, A.G.Smith, T.Soldner, B.J.Varley, T.Rzaca-Urban, A.Zlomaniec, O.Dorvaux, B.J.P.Gall, B.Roux, J.F.Smith Short-lived isomers in 94Rb NUCLEAR REACTIONS 235U(n, F), E=thermal; measured Eγ, Iγ, γγ-coin, fragment mass distributions. 94Rb; deduced levels, J, π, configurations. RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, fragment mass distributions.
doi: 10.1103/PhysRevC.78.011301
2007KU23 Eur.Phys.J. A 33, 307 (2007) J.Kurpeta, W.Urban, Ch.Droste, A.Plochocki, S.G.Rohozinski, T.Rzaca-Urban, T.Morek, L.Prochniak, K.Starosta, J.Aysto, H.Penttila, J.L.Durell, A.G.Smith, G.Lhersonneau, I.Ahmad Low-spin structure of 113Ru and 113Rh RADIOACTIVITY 113Ru, 113Rh(β-) [from 248cm(SF)]; measured Eγ, Iγ, βγ, γγ-coinc. 113Ru, Rh deduced levels, J, π, logft.Compared results to model calculations.
doi: 10.1140/epja/i2006-10464-2
2007RZ01 Phys.Rev. C 75, 054319 (2007) T.Rzaca-Urban, K.Pagowska, W.Urban, A.Zlomaniec, J.Genevey, J.A.Pinston, G.S.Simpson, M.S.Sarkar, S.Sarkar, H.Faust, A.Scherillo, I.Tsekhanovich, R.Orlandi, J.L.Durell, A.G.Smith, I.Ahmad First observation of excited states in the 138I nucleus RADIOACTIVITY 138I [from 248Cm(SF)]; measured prompt and delayed Eγ, Iγ. Deduced level energies, J, π.
doi: 10.1103/PhysRevC.75.054319
2007RZ02 Phys.Rev. C 76, 027302 (2007) T.Rzaca-Urban, W.Urban, J.L.Durell, A.G.Smith, I.Ahmad New excited states in 82Ge: Possible weakening of the N = 50 closed shell RADIOACTIVITY 82Ge(IT)[from 248Cm(SF)]; measured Eγ, Iγ, γγ-coinc. 82Ge deduced levels, J, π.
doi: 10.1103/PhysRevC.76.027302
2007RZ03 Eur.Phys.J. A 32, 5 (2007) T.Rzaca-Urban, W.Urban, M.S.Sarkar, S.Sarkar, J.L.Durell, A.G.Smith, B.J.Varley, I.Ahmad First observation of medium-spin excitations in the 138Cs nucleus RADIOACTIVITY 138Cs(IT) [from 248Cm(SF)]; measured Eγ, Iγ, γγ-coinc. 138Cs deduced levels, J, π.
doi: 10.1140/epja/i2007-10362-1
2007UR03 Phys.Rev. C 76, 037301 (2007) W.Urban, T.Rzaca-Urban, A.Syntfeld-Kazuch, J.L.Durell, A.G.Smith, B.J.Varley, I.Ahmad Near-yrast structure of the 149La nucleus RADIOACTIVITY 149La [from 248Cm(SF)]; measured Eγ, Iγ, γγ-coinc. 149La deduced levels, J, π.
doi: 10.1103/PhysRevC.76.037301
2006DR01 Nucl.Instrum.Methods Phys.Res. A556, 182 (2006) Ch.Droste, B.Czajkowska, Z.Marcinkowska, R.M.Lieder, T.Morek, T.Rzaca-Urban, W.Gast Polarisation sensitivity of the CLUSTER detector used in EUROBALL array NUCLEAR REACTIONS 99Ru(48Ti, 3n2p), E=240 MeV; measured Eγ, Iγ, γ-ray linear polarization.
doi: 10.1016/j.nima.2005.10.006
2006PI14 Phys.Rev.C 74, 064304 (2006) J.A.Pinston, W.Urban, Ch.Droste, T.Rzaca-Urban, J.Genevey, G.Simpson, J.L.Durell, A.G.Smith, B.J.Varley, I.Ahmad Triaxiality in 105Mo and 107Mo from the low to intermediate spin region RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 105Mo deduced levels, J, π, rotational bands, configurations, triaxial deformation. Eurogam2 array. NUCLEAR REACTIONS 241Pu(n, F), E=thermal; measured prompt and delayed Eγ, Iγ. 107Mo deduced levels, isomer T1/2, branching ratios, triaxial deformation.
doi: 10.1103/PhysRevC.74.064304
2006UR01 Phys.Rev. C 73, 037302 (2006) W.Urban, Ch.Droste, T.Rzaca-Urban, A.Zlomaniec, J.L.Durell, A.G.Smith, B.J.Varley, I.Ahmad Near-yrast structure of the 109Mo nucleus RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 109Mo deduced levels, J, π, configurations. Eurogam2 array.
doi: 10.1103/PhysRevC.73.037302
2006UR02 Eur.Phys.J. A 27, 257 (2006) W.Urban, M.Saha-Sarkar, S.Sarkar, T.Rzaca-Urban, J.L.Durell, A.G.Smith, J.A.Genevey, J.A.Pinston, G.S.Simpson, I.Ahmad New information on the T1/2 = 47 s isomer in the 136I nucleus RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 136I deduced levels, J, π, ICC, configurations. Eurogam2 array.
doi: 10.1140/epja/i2005-10273-1
2005PA07 Eur.Phys.J. A 23, 191 (2005) A.A.Pasternak, E.O.Podsvirova, R.M.Lieder, S.Chmel, W.Gast, Ts.Venkova, H.M.Jager, L.Mihailescu, G.de Angelis, D.R.Napoli, A.Gadea, D.Bazzacco, R.Menegazzo, S.Lunardi, W.Urban, Ch.Droste, T.Morek, T.Rzaca-Urban, G.Duchene, A.Dewald Investigation of lifetimes in dipole bands of 142Gd NUCLEAR REACTIONS 114Sn(32S, 2n2p), E=160 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 142Gd deduced high-spin levels, J, π, configurations, T1/2, B(M1), B(E2). Euroball IV and Euclides arrays, comparisons with model predictions.
doi: 10.1140/epja/i2004-10088-6
2005UR01 Eur.Phys.J. A 24, 161 (2005) W.Urban, T.Rzaca-Urban, J.L.Durell, A.G.Smith, I.Ahmad First observation of excited states in the 111Tc nucleus -A new region of deformation at 40 ≤ Z ≤ 46, N ≥ 68? RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 109,110,111Tc, 135I deduced transitions. 111Tc deduced levels, J, π, configurations. Eurogam2 array. Level systematics in neighboring nuclides discussed.
doi: 10.1140/epja/i2004-10140-7
2005UR02 Phys.Rev. C 72, 027302 (2005) W.Urban, T.Rzaca-Urban, J.A.Pinston, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad, N.Schulz Near-yrast, medium-spin structure of the 107Mo nucleus RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, angular correlations. 107Mo deduced high-spin levels, J, π, configurations. Eurogam2 array.
doi: 10.1103/PhysRevC.72.027302
2005VE07 Eur.Phys.J. A 26, 19 (2005) Ts.Venkova, W.Gast, R.M.Lieder, D.Bazzacco, G.de Angelis, E.O.Lieder, A.A.Pasternak, R.Menegazzo, S.Lunardi, C.Rossi Alvarez, C.Ur, T.Martinez, M.Axiotis, D.Napoli, W.Urban, T.Rzaca-Urban, S.Frauendorf Suppression of band crossing in the neutron-rich nuclei 172, 173Yb due to the absence of a static pair field NUCLEAR REACTIONS 170Er(7Li, 3np), (7Li, 4np), (7Li, 3nd), (7Li, 2nt), E=51 MeV; measured Eγ, Iγ, (charged particle)γ-coin. 172,173Yb deduced high-spin levels, J, π, configurations, absence of a static pair field. GASP, ISIS arrays.
doi: 10.1140/epja/i2005-10132-1
2005ZL01 Phys.Rev. C 72, 067302 (2005) A.Zlomaniec, H.Faust, J.Genevey, J.A.Pinston, T.Rzaca-Urban, G.S.Simpson, I.Tsekhanovich, W.Urban Half-life of the 830.2 keV isomer in 97Sr NUCLEAR REACTIONS 239Pu(n, F)97Sr, E=thermal; measured prompt and delayed Eγ, Iγ, γγ-coin. 97Sr deduced isomer T1/2, configuration. Fission fragment separator.
doi: 10.1103/PhysRevC.72.067302
2004LI48 Eur.Phys.J. A 21, 37 (2004) R.M.Lieder, A.A.Pasternak, E.O.Podsvirova, A.D.Efimov, V.M.Mikhajlov, R.Wyss, Ts.Venkova, W.Gast, H.M.Jager, L.Mihailescu, D.Bazzacco, S.Lunardi, R.Menegazzo C.R.Alvarez, G.de Angelis, D.R.Napoli, T.Rzaca-Urban, W.Urban, A.Dewald Investigations of the level scheme of 144Gd and lifetimes in the quadrupole bands NUCLEAR REACTIONS 100Mo(48Ti, 4n), E=215 MeV; 114Cd(36S, 6n), E=182 MeV; measured Eγ, Iγ, γγ-coin, DSA. 144Gd deduced high-spin levels, J, π, T1/2, B(E2), configurations. Euroball III and GASP arrays, interacting boson model calculations.
doi: 10.1140/epja/i2003-10181-4
2004PO13 Eur.Phys.J. A 21, 1 (2004) E.O.Podsvirova, R.M.Lieder, A.A.Pasternak, S.Chmel, W.Gast, Ts.Venkova, H.M.Jager, L.Mihailescu, G.de Angelis, D.R.Napoli, A.Gadea, D.Bazzacco, R.Menegazzo, S.Lunardi, W.Urban, Ch.Droste, T.Morek, T.Rzaca-Urban, G.Duchene Investigation of lifetimes in dipole bands of 141Eu NUCLEAR REACTIONS 99Ru(48Ti, 3n3p), E=240 MeV; 114Sn(32S, 2n3p), E=160 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 141Eu deduced high-spin levels, J, π, B(M1)/B(E2), T1/2, magnetic rotational bands. Euroball III and IV arrays, ISIS and Euclides arrays. Tilted-axis cranking and shears mechanism with principal axis cranking models.
doi: 10.1140/epja/i2004-10034-8
2004UR01 Phys.Rev. C 69, 017305 (2004) W.Urban, T.Rzaca-Urban, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, N.Schulz, I.Ahmad Observation of octupole excitations in 141Cs and 143Cs nuclei RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 141,143Cs deduced levels, J, π, B(E1)/B(E2), octupole excitation. Eurogam2 array.
doi: 10.1103/PhysRevC.69.017305
2004UR03 Eur.Phys.J. A 20, 381 (2004) W.Urban, T.Rzaca-Urban, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad, N.Schulz First observation of excited states in the 110Mo nucleus RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 110Mo deduced levels, J, π, deformation. Eurogam2 array.
doi: 10.1140/epja/i2004-10023-y
2004UR04 Eur.Phys.J. A 22, 157 (2004) W.Urban, A.Zlomaniec, G.Simpson, J.A.Pinston, J.Kurpeta, T.Rzaca-Urban, J.L.Durell, A.G.Smith, B.J.Varley, N.Schulz, I.Ahmad New spins for ground states and isomers in 115Pd and 117Pd RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 115,117Pd deduced levels, J, π, isomeric states. Eurogam2 array.
doi: 10.1140/epja/i2004-10090-0
2004UR05 Eur.Phys.J. A 22, 231 (2004) W.Urban, T.Rzaca-Urban, C.Droste, S.G.Rohozinski, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, N.Schulz, I.Ahmad, J.A.Pinston New bands and spin-parity assignments in 111Ru RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γ-ray polarization. 111Ru deduced levels, J, π, ICC, configurations, rotational bands. Eurogam2 array.
doi: 10.1140/epja/i2003-10234-8
2004UR06 Eur.Phys.J. A 22, 241 (2004) W.Urban, J.A.Pinston, J.Genevey, T.Rzaca-Urban, A.Zlomaniec, G.Simpson, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad, N.Schulz The ν9/2[404] orbital and the deformation in the A ∼ 100 region RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 97Sr, 101Zr deduced levels, J, π, configurations, quadrupole deformation. 101Zr deduced isomeric state T1/2. Eurogam2 array, level systematics in neighboring nuclides discussed.
doi: 10.1140/epja/i2004-10037-5
2004UR07 Phys.Rev. C 70, 057308 (2004) W.Urban, T.Rzaca-Urban, J.L.Durell, A.G.Smith, I.Ahmad Near-yrast, medium-spin structure of the 107Tc nucleus RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 107Tc deduced levels, J, π, ICC, configurations. Level systematics in neighboring isotopes discussed. Eurogam2 array.
doi: 10.1103/PhysRevC.70.057308
2004VE10 Eur.Phys.J. A 20, 375 (2004) Ts.Venkova, R.M.Lieder, W.Gast, D.Bazzacco, D.de Angelis, E.O.Lieder, H.M.Jager, L.Mihailescu, R.Menegazzo, S.Lunardi, C.Rossi Alvarez, C.Ur, T.Martinez, M.Axiotis, D.Napoli, W.Urban, T.Rzaca-Urban Signature inversion in the semidecoupled πh9/2 (X) νi13/2 band of the odd-odd nucleus 172Lu NUCLEAR REACTIONS 170Er(7Li, 5n), E=51 MeV; measured Eγ, Iγ, γγ-coin. 172Lu deduced high-spin levels, J, π, configurations, signature inversion. GASP array. NUCLEAR STRUCTURE 180Re, 182,184Ir, 184,186Au; analyzed rotational band level systematics; deduced J.
doi: 10.1140/epja/i2004-10018-8
2003MA95 Acta Phys.Pol. B34, 2319 (2003) Z.Marcinkowska, T.Rzaca-Urban, Ch.Droste, T.Morek, B.Czajkowska, W.Urban, R.Marcinkowski, P.Olbratowski, R.M.Lieder, H.Brans, W.Gast, H.M.Jager, L.Mihailescu, D.Bazzacco, G.Falconi, R.Menegazzo, S.Lunardi, C.Rossi-Alvarez, G.De Angelis, E.Farnea, A.Gadea, D.R.Napoli, Z.Podolyak Magnetic rotation in the nucleus 141Eu NUCLEAR REACTIONS 99Ru(48Ti, 3n3p), E=240 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, γ-ray polarization. 141Eu deduced high-spin levels, J, π, B(M1)/B(E2), magnetic rotation. Euroball III, ISIS arrays. Tilted-axis-cranking calculations.
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2003UR01 Eur.Phys.J. A 16, 11 (2003) W.Urban, J.A.Pinston, T.Rzaca-Urban, A.Zlomaniec, G.Simpson, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad, N.Schulz First observation of the ν9/2[404] orbital in the A ∼ 100 mass region RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 99Zr deduced levels, J, π, configurations isomer T1/2, rotational band quadrupole moment, deformation. Eurogam2 array.
doi: 10.1140/epja/i2002-10104-y
2003UR02 Eur.Phys.J. A 16, 303 (2003) W.Urban, T.Rzaca-Urban, N.Schulz, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad The strength of octupole correlations in neutron-rich Xe isotopes RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 140,142Xe deduced levels, J, π, B(E1)/B(E2), octupole bands, electric dipole moments. Level systematics in neighboring nuclides discussed. Euroball2 array.
doi: 10.1140/epja/i2002-10127-4
2003VE08 Eur.Phys.J. A 18, 1 (2003) Ts.Venkova, R.M.Lieder, W.Gast, D.Bazzacco, G.de Angelis, E.Podsvirova, H.M.Jager, L.Mihailescu, R.Menegazzo, S.Lunardi, C.Rossi Alvarez, C.Ur, T.Martinez, M.Axiotis, D.Napoli, W.Urban, T.Rzaca-Urban, S.Frauendorf Pseudo-spin band in the odd-odd nucleus 172Lu NUCLEAR REACTIONS 170Er(7Li, 5n), E=51 MeV; measured Eγ, Iγ, γγ-coin. 172Lu deduced high-spin levels, J, π, configurations, pseudo-spin singlet band. GASP array.
doi: 10.1140/epja/i2003-10024-4
2003VE09 Eur.Phys.J. A 18, 577 (2003) Ts.Venkova, R.M.Lieder, W.Gast, D.Bazzacco, G.De Angelis, E.Podsvirova, H.M.Jager, L.Mihailescu, R.Menegazzo, S.Lunardi, C.Rossi Alvarez, C.Ur, T.Martinez, M.Axiotis, D.Napoli, W.Urban, T.Rzaca-Urban Delayed crossing in the πh9/2 1/2-[541] band of 173Lu NUCLEAR REACTIONS 170Er(7Li, 4n), E=51 MeV; measured Eγ, Iγ, γγ-coin. 173Lu deduced high-spin levels, J, π, configurations. GASP array, rotational band systematics in neighboring nuclides discussed.
doi: 10.1140/epja/i2003-10068-4
2002KO53 Eur.Phys.J. A 15, 181 (2002) A.Korgul, H.Mach, B.Fogelberg, W.Urban, W.Kurcewicz, T.Rzaca-Urban, P.Hoff, H.Gausemel, J.Galy, J.L.Durell, W.R.Phillips, A.G.Smith, B.J.Varley, N.Schulz, I.Ahmad, L.R.Morss, M.Gorska, V.I.Isakov, K.I.Erokhina, J.Blomqvist, F.Andreozzi, F.Coraggio, A.Covello, A.Gargano The neutron and proton two-particle nucleus 134Sb: New low-spin states observed in the decay of 134Sn and an estimate of the energy of the 7- isomer RADIOACTIVITY 134Sn(β-) [from 238U(n, F)]; measured Eγ, Iγ, γγ-, βγ-coin. 134Sb deduced levels, possible J, π, configurations. Mass separator. Comparisons with model predictions.
doi: 10.1140/epja/i2001-10250-8
2002LI22 Eur.Phys.J. A 13, 297 (2002) R.M.Lieder, T.Rzaca-Urban, H.Brands, W.Gast, H.M.Jager, L.Mihailescu, Z.Marcinkowska, W.Urban, T.Morek, Ch.Droste, P.Szymanski, S.Chmel, D.Bazzacco, G.Falconi, R.Menegazzo, S.Lunardi, C.Rossi Alvarez, G.de Angelis, E.Farnea, A.Gadea, D.R.Napoli, Z.Podolyak, Ts.Venkova Development of Magnetic Rotation in Light Gd Nuclei; Study of 142Gd NUCLEAR REACTIONS 99Ru(48Ti, 3n2p), E=240 MeV; measured Eγ, γγ-, (light charged particle)γ-coin, linear polarization. 142Gd deduced high-spin levels, J, π, rotational and dipole bands, B(M1)/B(M2). Comparison with tilted-axis cranking results. Euroball III array.
doi: 10.1007/s10050-002-8759-4
2002OL03 Acta Phys.Pol. B33, 389 (2002) P.Olbratowski, J.Dobaczewski, J.Dudek, T.Rzaca-Urban, Z.Marcinkowska, R.M.Lieder The Shears Mechanism in 142Gd in the Skyrme-Hartree-Fock Method with the Tilted-Axis Cranking NUCLEAR STRUCTURE 142Gd; calculated single-particle Routhians, energy vs spin for magnetic dipole band. Skyrme-Hartree-Fock calculations, tilted-axis cranking, comparison with data.
2002UR02 Phys.Rev. C65, 024307 (2002) W.Urban, T.Rzaca-Urban, A.Korgul, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad, L.R.Morss, N.Schulz First Observation of Excited States in 139I RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 139I deduced levels, J, π, configuration. Eurogam2 array. Level systematics in neighboring nuclides discussed.
doi: 10.1103/PhysRevC.65.024307
2002UR04 Phys.Rev. C66, 044302 (2002) W.Urban, W.R.Phillips, I.Ahmad, J.Rekawek, A.Korgul, T.Rzaca-Urban, J.L.Durell, M.J.Leddy, A.G.Smith, B.J.Varley, N.Schulz, L.R.Morss Near-yrast structure of neutron-rich, N = 85 isotones RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 139Xe, 141Ba deduced levels, J, π, γ-ray polarization. 143Ce, 135Sn, 137Te analyzed levels, J, π. Eurogam 2 array.
doi: 10.1103/PhysRevC.66.044302
2001KO78 Eur.Phys.J. A 12, 129 (2001) A.Korgul, W.Urban, T.Rzaca-Urban, M.Gorska, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, M.Bentaleb, E.Lubkiewicz, N.Schulz, I.Ahmad, L.R.Morss First Measurements of Yrast Excitations in 137I and the Missing 12+ Isomer in 136Te RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 137I deduced high-spin levels, J, π, configurations, no isomer observed. Comparisons with neighboring nuclides and with shell model predictions. Eurogam2 array.
doi: 10.1007/s100500170018
2001MO05 Phys.Rev. C63, 034302 (2001) T.Morek, J.Srebrny, Ch.Droste, M.Kowalczyk, T.Rzaca-Urban, K.Starosta, W.Urban, R.Kaczarowski, E.Ruchowska, M.Kisielinski, A.Kordyasz, J.Kownacki, M.Palacz, E.Wesolowski, W.Gast, R.M.Lieder, P.Bednarczyk, W.Meczynski, J.Styczen Investigation of the Kπ = 8- Isomer in 132Ce NUCLEAR REACTIONS 120Sn(16O, 4n), E=80 MeV; measured delayed Eγ, Iγ(t), γγ-coin. 132Ce deduced levels, J, π, T1/2 and hindrance factor for high-K isomer. Systematics of isomers in mass region discussed.
doi: 10.1103/PhysRevC.63.034302
2001RZ01 Acta Phys.Pol. B32, 2645 (2001) Search for Magnetic Rotation in the A ≈ 140 Region NUCLEAR REACTIONS 108Pd(40Ar, 4n), E=182 MeV; 97Mo(51V, 4np), E=238 MeV; 99Ru(48Ti, npα), (48Ti, nα), measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 141Eu, 142,143,144Gd deduced high-spin levels, J, π, configurations, dipole bands. Tilted axis cranking calculations.
2001UR01 Nucl.Phys. A689, 605 (2001) W.Urban, J.L.Durell, A.G.Smith, W.R.Phillips, M.A.Jones, B.J.Varley, T.Rzaca-Urban, I.Ahmad, L.R.Morss, M.Bentaleb, N.Schulz Medium-Spin Structure of 96, 97Sr and 98, 99Zr Nuclei and the Onset of Deformation in the A ∼ 100 Region RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 96,97Sr, 98,99Zr deduced levels, J, π. 96,97,98,100Sr, 98,99Zr deduced quadrupole moments. Eurogam2 array.
doi: 10.1016/S0375-9474(00)00612-6
2000KO15 Eur.Phys.J. A 7, 167 (2000) A.Korgul, W.Urban, T.Rzaca-Urban, M.Rejmund, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, N.Schulz, M.Bentaleb, E.Lubkiewicz, I.Ahmad, L.R.Morss Properties of N = 84, Even-Even Nuclei Populated in the Spontaneous Fission of 248Cm RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ(θ), γγ-coin. 134Sn, 136Te, 138Xe deduced levels J, π. Comparison with Shell Model calculations and systematics of N=84 isotones, EUROGAM2 array.
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2000LI14 Nucl.Phys. A671, 52 (2000) R.M.Lieder, T.Rzaca-Urban, H.J.Jensen, W.Gast, A.Georgiev, H.M.Jager, E.van der Meer, Ch.Droste, T.Morek, D.Bazzacco, S.Lunardi, R.Menegazzo, C.M.Petrache, C.Rossi Alvarez, C.A.Ur, G.de Angelis, D.R.Napoli, Ts.Venkova, R.Wyss From Highly to Superdeformed Shapes: Study of 143Gd NUCLEAR REACTIONS 97Mo(51V, 4np), E=238 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, γ polarization. 143Gd deduced high-spin levels, J, π, configurations, superdeformed bands. GASP, ISIS arrays. Cranked shell model calculations.
doi: 10.1016/S0375-9474(99)00815-5
2000RZ01 Nucl.Phys. A677, 25 (2000) T.Rzaca-Urban, A.Pasternak, R.M.Lieder, W.Urban, M.Rejmund, Z.Marcinkowska, R.Marcinkowski, S.Utzelmann, H.J.Jensen, W.Gast, H.Jager, D.Bazzacco, S.Lunardi, N.H.Medina, R.Menegazzo, P.Pavan, C.M.Petrache, C.Rossi Alvarez, G.de Angelis, D.R.Napoli, L.Zhu, A.Dewald, S.Kasemann Study of Quadrupole Moments of Superdeformed Bands in 145Gd NUCLEAR REACTIONS 114Cd(36S, 5n), E=182 MeV; measured Eγ, Iγ, γγ-coin, DSA. 145Gd deduced superdeformed bands quadrupole moments, sidefeeding times, configurations. GASP detector array.
doi: 10.1016/S0375-9474(00)00223-2
2000RZ02 Eur.Phys.J. A 9, 165 (2000) T.Rzaca-Urban, W.Urban, A.Kaczor, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad, L.R.Morss, M.Bentaleb, E.Lubkiewicz, N.Schulz Shapes of the Neutron-Rich 88-94Kr Nuclei RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 88,90,92,94Kr deduced levels, J, π, configurations, deformation. Level systematics in neighboring nuclides discussed. Eurogam 2 array.
doi: 10.1007/s100500070033
2000UR01 Phys.Rev. C61, 041301 (2000) W.Urban, A.Korgul, T.Rzaca-Urban, N.Schulz, M.Bentaleb, E.Lubkiewicz, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, I.Ahmad, L.R.Morss First Observation of Excited States in 137Te and the Extent of Octupole Instability in the Lanthanides RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ(θ); deduced relative yields of Te isotopes. 137Te deduced high-spin levels, J, π, configurations. Eurogam 2 array. Level systematics in neighboring isotones discussed.
doi: 10.1103/PhysRevC.61.041301
1999LI03 Nucl.Phys. A645, 465 (1999) R.M.Lieder, Ts.Venkova, S.Utzelmann, W.Gast, H.Schnare, K.Spohr, P.Hoernes, A.Georgiev, D.Bazzacco, R.Menegazzo, C.Rossi-Alvarez, G.de Angelis, R.Kaczarowski, T.Rzaca-Urban, T.Morek, G.V.Marti, K.H.Maier, S.Frauendorf Observation of a (ν7/2-[514])2 Crossing in 180Os NUCLEAR REACTIONS 150Nd(36S, 6n), E=177 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 180Os deduced high-spin levels, J, π, δ, γ-branching, g(K) factors, B(M1)/B(E2) ratios, configurations. GASP detector array. Tilted-axis cranking model calculations.
doi: 10.1016/S0375-9474(98)00626-5
1999NO05 Eur.Phys.J. A 6, 1 (1999) A.Nowak, W.Urban, W.Kurcewicz, T.Rzaca-Urban, H.Mach, B.Fogelberg, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, M.Bentaleb, E.Lubkiewicz, N.Schulz, I.Ahmad, L.R.Morss New Excitation Scheme of 139Cs RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 139Xe(β-); measured Eγ, Iγ(t), γγ-coin. 139Cs deduced levels, possible J, π. Eurogam 2 aray. Level systematics in nearby isotones discussed.
doi: 10.1007/s100500050309
1999UR01 Eur.Phys.J. A 5, 239 (1999) W.Urban, W.Kurcewicz, A.Nowak, T.Rzaca-Urban, J.L.Durell, M.J.Leddy, M.A.Jones, W.R.Phillips, A.G.Smith, B.J.Varley, M.Bentaleb, E.Lubkiewicz, N.Schulz, J.Blomqvist, P.J.Daly, P.Bhattacharyya, C.T.Zhang, I.Ahmad, L.R.Morss Neutron Single-Particle Energies in the 132Sn Region RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 133Sn deduced transitions. 134Sb deduced levels, possible J, π, configurations. Eurogam 2 array.
doi: 10.1007/s100500050280
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