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NSR database version of May 24, 2024.

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2023LE05      Phys.Rev. C 107, 054609 (2023)

I.Lee, G.Gosselin, A.Diaz-Torres

Thermal and atomic effects on coupled-channels heavy-ion fusion

NUCLEAR REACTIONS 188Os(16O, X), E(cm)=65-78 MeV; calculated fusion probability in the presence of a thermal plasma environment, radial position probability as a function of internuclear radius and time for a head-on collision. Coupled-channels density-matrix method based on the theory of open quantum systems to include thermal and atomic effects on subbarrier fusion dynamics.

doi: 10.1103/PhysRevC.107.054609
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2023SA36      Phys.Lett. B 845, 138114 (2023)

J.Saiz-Lomas, M.Petri, I.Y.Lee, I.Syndikus, S.Heil, J.M.Allmond, L.P.Gaffney, J.Pakarinen, H.Badran, T.Calverley, D.M.Cox, U.Forsberg, T.Grahn, P.Greenlees, K.Hadynska-Klek, J.Hilton, M.Jenkinson, R.Julin, J.Konki, A.O.Macchiavelli, M.Mathy, J.Ojala, P.Papadakis, J.Partanen, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, S.Stolze, J.Uusitalo, R.Wadsworth

The spectroscopic quadrupole moment of the 2+1 state of 12C: A benchmark of theoretical models

NUCLEAR REACTIONS 208Pb(12C, 12C'), E=47.65 MeV; measured reaction products, Eγ, Iγ. 12C; deduced γ-ray energies, quadrupole moments, B(E2). Comparison with state-of-the-art shell-model, mean-field, ab initio calculations, cluster-based and geometrical-like theories, which show varying degrees of emergent quadrupole collectivity. The jurogam array, JYFL accelerator laboratory at the University of Jyvaskyla, Finland.

doi: 10.1016/j.physletb.2023.138114
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2023SI08      Phys.Rev. C 107, 054305 (2023)

J.Simpson, M.A.Riley, A.Pipidis, E.S.Paul, X.Wang, P.J.Nolan, J.F.Sharpey-Schafer, A.Aguilar, D.E.Appelbe, A.D.Ayangeakaa, A.J.Boston, H.C.Boston, D.B.Campbell, M.P.Carpenter, C.J.Chiara, P.T.W.Choy, R.M.Clark, M.Cromaz, A.O.Evans, P.Fallon, U.Garg, A.Gorgen, D.J.Hartley, R.V.F.Janssens, D.T.Joss, D.S.Judson, F.G.Kondev, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, J.T.Matta, J.Ollier, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Teal, P.J.Twin, C.Unsworth, D.Ward, S.Zhu, I.Ragnarsson

Evolution of structure and shapes in 158Er to ultrahigh spin

NUCLEAR REACTIONS 114Cd(48Ca, 4n)158Er, E=215 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 158Er; deduced levels, J, π, high-spin states, angular intensity ratios, δ, B(M1/E2) ratios, nuclear shapes, alignments, rotational bands, configurations, band terminating states and feeding, transition quadrupole moments for triaxial strongly deformed bands, moment of inertia. Comparison with cranked Nilsson-Strutinski calculations. Systematics of triaxial strongly deformed bands in 158Er, 160Er, 152Dy, 163Lu. Gammasphere array of escape-suppressed HPGe detectors at 88-inch cyclotron-LBNL and ATLAS-ANL facilities.

doi: 10.1103/PhysRevC.107.054305
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2022CR04      Phys.Rev. C 106, L061303 (2022)

H.L.Crawford, M.D.Jones, A.O.Macchiavelli, P.Fallon, D.Bazin, P.C.Bender, B.A.Brown, C.M.Campbell, R.M.Clark, M.Cromaz, B.Elman, A.Gade, J.D.Holt, R.V.F.Janssens, I.Y.Lee, B.Longfellow, S.Paschalis, M.Petri, A.L.Richard, M.Salathe, J.A.Tostevin, D.Weisshaar

Core of 25F studied by the 25F(-p) proton-removal reaction

NUCLEAR REACTIONS 9Be(25F, 24O), E=77 MeV/nucleon; measured reaction products; deduced longitudinal momentum distribution, proton removal σ, spectroscopic factor. Results are interpreted within the framework of the Particle-Vibration Coupling (PVC) model, of a d5/2 proton coupled to a quadrupole phonon of an effective 24O core. Comparison to shell model predictions. Reaction products analyzed by spectrometer S800 (NSCL). Secondary 25F beam from 48Ca fragmentation on Be target at accelerated through the Coupled Cyclotron Facility.

doi: 10.1103/PhysRevC.106.L061303
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2022LE03      Phys.Lett. B 827, 136970 (2022)

I.Lee, A.Diaz-Torres

Coherence dynamics in low-energy nuclear fusion

NUCLEAR REACTIONS 144Sm(16O, X), E=60 MeV; analyzed available data; calculated entropy, energy dissipation and coherence using a dynamical coupled-channels density matrix method, based on the theory of open quantum systems.

doi: 10.1016/j.physletb.2022.136970
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2022MA05      Phys.Rev. C 105, 014309 (2022)

A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, A.Gade, A.Poves, E.Rice

Structure of 43P and 42Si in a two-level shape-coexistence model

NUCLEAR STRUCTURE 43P; calculated excitation energies, proton Nilsson orbitals originating from the sd shell, electric quadrupole (Q) and magnetic dipole moments (μ), B(E2), B(M1). 42Si; calculated excitation energies, electric quadrupole moments (Q) and B(E2). Two-level mixing (collective) model of oblate and prolate coexisting shapes. Comparison with available experimental data. Application of the formalism to the proton knockout reaction σ from 43P to 42Si, and compared theoretical σ to experimental value in 2019Ga15: Phys. Rev. Lett. 122, 222501.

doi: 10.1103/PhysRevC.105.014309
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2022MA43      Eur.Phys.J. A 58, 144 (2022)

A.O.Macchiavelli, H.L.Crawford, R.M.Clark, P.Fallon, I.Y.Lee, C.M.Campbell, M.Cromaz, A.Frotscher, C.Porzio, E.Rice

Structure of 48, 49, 50Ca in a phenomenological shell model

NUCLEAR STRUCTURE 48,49,50Ca; analyzed available data; calculated occupation probabilities, level occupancies, rms radii, B(E2), spectroscopic factors; deduced wavefunctions fit to the available data on spectroscopic factors derived from direct one neutron addition and removal reactions.

doi: 10.1140/epja/s10050-022-00763-1
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2022MO05      Nucl.Instrum.Methods Phys.Res. A1025, 166155 (2022)

C.Morse, H.L.Crawford, A.O.Macchiavelli, A.Wiens, M.Albers, A.D.Ayangeakaa, P.C.Bender, C.M.Campbell, M.P.Carpenter, P.Chowdhury, R.M.Clark, M.Cromaz, H.M.David, P.Fallon, R.V.F.Janssens, T.Lauritsen, I.-Y.Lee, C.J.Lister, D.Miller, V.S.Prasher, S.L.Tabor, D.Weisshaar, S.Zhu

The polarization sensitivity of GRETINA

NUCLEAR REACTIONS 24Mg(p, p'), E=2.45 MeV; measured reaction products, Eγ, Iγ. 25Mg; deduced γ-ray energies, J, π, polar angular distribution.

doi: 10.1016/j.nima.2021.166155
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2021LU08      Int.J.Mod.Phys. E30, 2150037 (2021)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, E.H.Wang, S.Frauendorf, W.Y.Liang, C.F.Jiao, Q.Wu, H.L.Liu, F.R.Xu, Y.X.Liu, Y.Sun, J.K.Hwang, S.H.Liu, S.J.Zhu, N.T.Brewer, I.Y.Lee, G.M.Ter-Akopian, Yu.Oganessian, A.V.Daniel, R.Donangelo, W.C.Ma

First observation of collective rotational bands in neutron-rich 142La and the study of octupole/triaxial deformations in 142, 143La

RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ, γ-g.-coin. 142,143La; deduced γ-ray energies and intensities, J, π, yrast band, octupole deformation parameter. TRS model calculations.

doi: 10.1142/S0218301321500373
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2021MA21      Phys.Rev. C 103, 034307 (2021)

A.O.Macchiavelli, H.L.Crawford, R.M.Clark, P.Fallon, I.Y.Lee, C.Morse, C.M.Campbell, M.Cromaz, C.Santamaria, J.Chen, C.R.Hoffman, B.P.Kay

Coriolis coupling effects in proton-pickup spectroscopic factors from 12B

NUCLEAR REACTIONS 2H(12B, 3He)11Be, E=12 MeV/nucleon; analyzed Coriolis coupling effects in proton-pickup spectroscopic factors extracted from experimental data in 2019Ch51. 11B; calculated levels, J, π, Coriolis mixing amplitudes of the proton Nilsson states using the particle rotor model (PRM) and compared with the experimental data. 11Be, 11B; calculated L=1 proton-removal spectroscopic factors from 1- 11B and 0+ 12C ground states using PRM, and compared with experimental data. 12B; deduced evidence of Coriolis coupling in the ground state.

doi: 10.1103/PhysRevC.103.034307
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2020LE17      J.Phys.(London) G47, 015101 (2020)

I.Lee, A.Diaz-Torres

Populating high spin states of a compound nucleus with the incomplete fusion mechanism: the effectiveness of heavy projectiles

NUCLEAR REACTIONS 208Pb(6Li, X), (7Li, X), (8Be, X), (20Ne, X), E not given; calculated angular momentum distributions, σ(E); deduced as the charge of the projectiles increased, higher angular momentum states were produced.

doi: 10.1088/1361-6471/ab5245
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2020LL01      Phys.Rev.Lett. 124, 152501 (2020)

R.D.O.Llewellyn, M.A.Bentley, R.Wadsworth, H.Iwasaki, J.Dobaczewski, G.de Angelis, J.Ash, D.Bazin, P.C.Bender, B.Cederwall, B.P.Crider, M.Doncel, R.Elder, B.Elman, A.Gade, M.Grinder, T.Haylett, D.G.Jenkins, I.Y.Lee, B.Longfellow, E.Lunderberg, T.Mijatovic, S.A.Milne, D.Muir, A.Pastore, D.Rhodes, D.Weisshaar

Establishing the Maximum Collectivity in Highly Deformed N=Z Nuclei

NUCLEAR REACTIONS 9Be(81Zr, n), (79Sr, n), (80Y, 2n), (80Y, 3np), E ∼ 77 MeV/nucleon; measured reaction products, Eγ, Iγ. 80Zr, 78Y, 76,78Sr; deduced level energies, J, π, level lifetimes, B(E2).

doi: 10.1103/PhysRevLett.124.152501
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2020LL02      Phys.Lett. B 811, 135873 (2020)

R.D.O.Llewellyn, M.A.Bentley, R.Wadsworth, J.Dobaczewski, W.Satula, H.Iwasaki, G.de Angelis, J.Ash, D.Bazin, P.C.Bender, B.Cederwall, B.P.Crider, M.Doncel, R.Elder, B.Elman, A.Gade, M.Grinder, T.Haylett, D.G.Jenkins, I.Y.Lee, B.Longfellow, E.Lunderberg, T.Mijatovic, S.A.Milne, D.Rhodes, D.Weisshaar

Spectroscopy of proton-rich 79Zr: Mirror energy differences in the highly-deformed fpg shell.

NUCLEAR REACTIONS 9Be(81Zr, 2n), (80Y, n), E<140 MeV/nucleon; measured reaction products, Eγ, Iγ. 79Zr, 79Y; deduced γ-ray energies and relative intensities, J, π, level schemes, mirror energy differences as a function of spin. Comparison with Hartree-Fock calculations.

doi: 10.1016/j.physletb.2020.135873
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2020MA17      Phys.Rev. C 101, 044319 (2020)

A.O.Macchiavelli, H.L.Crawford, P.Fallon, I.Y.Lee, R.M.Clark, C.M.Campbell, M.Cromaz, C.Morse, C.Santamaria

Analysis of the 18Fg, m(d, p)19F reactions in the rotational model

NUCLEAR REACTIONS 18,18mF(d, p)19F, E=14 MeV/nucleon; 18O(3He, d)19F, E=11 MeV; 19F(d, 3He)18O, E=52 MeV; calculated spectroscopic factors using rotational model with Nilsson configurations. Comparison with experimental values, and with USDB shell-model calculations. 19F, 20Ne; calculated levels energies of ground-state bands, and compared with experimental data from the ENSDF database. 19F, 19Ne; compared magnetic dipole moments from Nilsson results with experimental values.

doi: 10.1103/PhysRevC.101.044319
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2020MA52      Phys.Rev. C 102, 041301 (2020)

A.O.Macchiavelli, R.M.Clark, H.L.Crawford, P.Fallon, I.Y.Lee, C.Morse, C.M.Campbell, M.Cromaz, C.Santamaria

Core of 25F in the rotational model

NUCLEAR STRUCTURE 25F; calculated levels, J, π, magnetic moments, quadrupole moments, B(E2), spectroscopic factors for low-lying levels using particle-rotor model; deduced rotation-aligned coupling scheme with the 5/2+ ground state as the bandhead of a decoupled band, configuration. Comparison with experimental results from 25F(p, 2p)24O at RIKEN.

doi: 10.1103/PhysRevC.102.041301
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2020MO36      Phys.Rev. C 102, 054328 (2020)

C.Morse, A.O.Macchiavelli, H.L.Crawford, S.Zhu, C.Y.Wu, Y.Y.Wang, J.Meng, B.B.Back, B.Bucher, C.M.Campbell, M.P.Carpenter, J.Chen, R.M.Clark, M.Cromaz, P.Fallon, J.Henderson, R.V.F.Janssens, M.D.Jones, T.L.Khoo, F.G.Kondev, T.Lauritsen, I.Y.Lee, J.Li, D.Potterveld, C.Santamaria, G.Savard, D.Seweryniak, S.Stolze, D.Weisshaar

Quadrupole and octupole collectivity in 143Ba

NUCLEAR REACTIONS 208Pb(143Ba, 143Ba'), E=627.8 MeV, [143Ba beam from 252Cf SF at the CARIBU facility at ATLAS-ANL]; measured reaction products, Eγ, Iγ, scattered particles, (particle)γ-coin, and half-life of the first 9/2- level from (particle)γ-coin using GRETINA array of 11 Quad detector modules, each with four 36-fold segmented HPGe crystals for γ detection and CHICO2 array of 20 Parallel Plate Avalanche Counters (PPACs). 143Ba; deduced levels, J, π, Coulomb excitation γ-ray yields, E2 matrix elements using GOSIA least-squares analysis, B(E2), upper limit for E3 matrix element and B(E3), alignment plots, doubly decoupled structure. Comparison with Reflection-Asymmetric Triaxial Particle Rotor Model (RAT-PRM) calculations.

doi: 10.1103/PhysRevC.102.054328
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2018JO01      Phys.Rev. C 97, 024327 (2018)

M.D.Jones, A.O.Macchiavelli, M.Wiedeking, L.A.Bernstein, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, M.Salathe, A.Wiens, A.D.Ayangeakaa, D.L.Bleuel, S.Bottoni, M.P.Carpenter, H.M.Davids, J.Elson, A.Gorgen, M.Guttormsen, R.V.F.Janssens, J.E.Kinnison, L.Kirsch, A.C.Larsen, T.Lauritsen, W.Reviol, D.G.Sarantites, S.Siem, A.V.Voinov, S.Zhu

Examination of the low-energy enhancement of the γ-ray strength function of 56Fe

NUCLEAR REACTIONS 56Fe(p, p'), E=16 MeV; measured Eγ, Iγ, γ(θ) for discrete and continuum γ rays, γ(linear polarization) for primary γ rays, pγγ-coin using GRETINA (Gamma-Ray Energy Tracking In-beam Nuclear Array) for γ detection and Washington University Phoswich Wall for protons; deduced multipolarity of continuum γ rays, γ-ray strength function (γSF) with the model-independent ratio method, low-energy enhancement, identical shapes for γSFs constructed with 2+ and 4+ final states consistent with Brink hypothesis. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.97.024327
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2018MA05      Phys.Rev. C 97, 011302 (2018); Erratum Phys.Rev. C 97, 094902 (2018)

A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, I.Y.Lee, M.Salathe

Analysis of spectroscopic factors in 11Be and 12Be in the Nilsson strong-coupling limit

NUCLEAR REACTIONS 10,11Be(d, p)11Be/12Be, 11,12Be(p, d)10Be/11Be, E not given; analyzed spectroscopic factors in the Nilsson strong-coupling limit. Comparison with experimental data, and several theoretical calculations. 12Be(d, p)13Be, 13B(d, 3He)12Be, E not given; calculated spectroscopic factors in the Nilsson scheme. 11Be; calculated magnetic moment of the ground state and compared with experimental data.

doi: 10.1103/PhysRevC.97.011302
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2018MO30      Phys.Lett. B 787, 198 (2018)

C.Morse, H.Iwasaki, A.Lemasson, A.Dewald, T.Braunroth, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, C.M.Campbell, A.Gade, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, F.Recchia, D.Smalley, S.R.Stroberg, R.Wadsworth, C.Walz, D.Weisshaar, A.Westerberg, K.Whitmore, K.Wimmer

Lifetime measurement of the 2+1 state in 74Rb and isospin properties of quadrupole transition strengths at N=Z

NUCLEAR REACTIONS 9Be(74Kr, 74Rb), E=93 MeV/nucleon; measured reaction products, Eγ, Iγ. 74Rb; deduced γ-ray energies, J, π, level lifetimes, B(E2). Recoil Distance Doppler Shift (RDDS) technique.

doi: 10.1016/j.physletb.2018.10.064
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2018SI03      Phys.Rev. C 97, 024323 (2018)

A.K.Singh, A.Basu, S.Nag, H.Hubel, J.Domscheit, I.Ragnarsson, A.Al-Khatib, G.B.Hagemann, B.Herskind, D.R.Elema, J.N.Wilson, R.M.Clark, M.Cromaz, P.Fallon, A.Gorgen, I.-Y.Lee, D.Ward, W.C.Ma

Absence of paired crossing in the positive parity bands of 124Cs

NUCLEAR REACTIONS 64Ni(64Ni, 3np), E=265 MeV from the 88-inch cyclotron at Lawrence Berkeley National Laboratory; measured Eγ, Iγ, γγ-coin, γγ(θ) angular distribution ratios using Gammasphere array of 100 Compton-suppressed Ge detectors, enriched target. 124Cs; deduced high-spin levels, J, π, multipolarities, rotational bands, chiral partner bands, configurations, alignments, band crossings; calculated potential-energy surfaces, single-neutron routhians. Comparison with configuration-dependent cranked Nilsson-Strutinsky model calculations.

doi: 10.1103/PhysRevC.97.024323
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2017CR03      Phys.Rev. C 95, 064317 (2017)

H.L.Crawford, A.O.Macchiavelli, P.Fallon, M.Albers, V.M.Bader, D.Bazin, C.M.Campbell, R.M.Clark, M.Cromaz, J.Dilling, A.Gade, A.Gallant, J.D.Holt, R.V.F.Janssens, R.Krucken, C.Langer, T.Lauritsen, I.Y.Lee, J.Menendez, S.Noji, S.Paschalis, F.Recchia, J.Rissanen, A.Schwenk, M.Scott, J.Simonis, S.R.Stroberg, J.A.Tostevin, C.Walz, D.Weisshaar, A.Wiens, K.Wimmer, S.Zhu

Unexpected distribution of ν1f7/2 strength in 49Ca

NUCLEAR REACTIONS 9Be(48Ca, 47Ca), (50Ca, 49Ca), E not given, [secondary 48,50Ca beams from 9Be(82Se, X), E=140 MeV/nucleon primary reaction, and using A1900 fragment separator at NSCL-MSU]; measured reaction 1n-knockout products using S800 magnetic spectrograph, Eγ, Iγ, γγ-coin, γ(particle) correlated events, using GRETINA array for γ detection, σ(-1n), parallel momentum distributions. 47,49Ca; deduced levels, J, π, l-transfer, γ-ray yields by fitting the data with GEANT4 simulation, spectroscopic factors, configurations, spectroscopic strengths for the 1f7/2 neutron hole states. Comparison with shell-model calculations based on NN+3N force in ν(pf) model space, GXPF1 interaction, and NN+3N including the ν1g9/2 orbital.

doi: 10.1103/PhysRevC.95.064317
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2017MA72      Phys.Rev. C 96, 054302 (2017)

A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, I.Y.Lee, A.L.Richard, M.Salathe

Spectroscopic factors in the N=20 island of inversion: The Nilsson strong-coupling limit

NUCLEAR REACTIONS C(33Mg, 32Mg), E=400, 898 MeV/nucleon; 9Be(32Mg, 31Mg), E=75.7 MeV/nucleon; analyzed recent experimental data on 1n-removal reactions in the rotational strong coupling limit; calculated spectroscopic factors using standard Nilsson parameters and empirical adjustment of experimental data for nuclei in the N=20 island of inversion.

doi: 10.1103/PhysRevC.96.054302
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2017MA77      Phys.Lett. B 775, 160 (2017)

A.O.Macchiavelli, H.L.Crawford, P.Fallon, C.M.Campbell, R.M.Clark, M.Cromaz, M.D.Jones, I.Y.Lee, M.Salathe

Structure of 29F in the rotation-aligned coupling scheme of the particle-rotor model

NUCLEAR STRUCTURE 29F, 28O; analyzed available data using the Rotation-aligned Coupling Scheme; deduced energy levels and deformations.

doi: 10.1016/j.physletb.2017.10.041
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2017ON01      Phys.Rev. C 95, 055806 (2017)

W.-J.Ong, C.Langer, F.Montes, A.Aprahamian, D.W.Bardayan, D.Bazin, B.A.Brown, J.Browne, H.Crawford, R.Cyburt, E.B.Deleeuw, C.Domingo-Pardo, A.Gade, S.George, P.Hosmer, L.Keek, A.Kontos, I.-Y.Lee, A.Lemasson, E.Lunderberg, Y.Maeda, M.Matos, Z.Meisel, S.Noji, F.M.Nunes, A.Nystrom, G.Perdikakis, J.Pereira, S.J.Quinn, F.Recchia, H.Schatz, M.Scott, K.Siegl, A.Simon, M.Smith, A.Spyrou, J.Stevens, S.R.Stroberg, D.Weisshaar, J.Wheeler, K.Wimmer, R.G.T.Zegers

Low-lying level structure of 56Cu and its implications for the rp process

NUCLEAR REACTIONS 2H(56Ni, 56Cu), E AP 75 MeV/nucleon, [secondary 56Ni beam from 9Be(58Ni, X), E=160 MeV/nucleon primary reaction using A1900 separator at NSCL-MSU facility]; measured ΔE-TOF particle identification for ions, Eγ, Iγ, γγ-, (56Cu ions)γ-coin using GRETINA array and S800 magnetic spectrograph. 56Cu; deduced levels, J, π. Comparison with mirror nucleus 56Co level scheme, and with shell-model calculations 55Ni(p, γ)56Cu, T9=0.1-10; deduced Q value, astrophysical reaction rates as function of temperature, and impact on the r-process around 56Ni.

NUCLEAR STRUCTURE 56Cu; calculated levels, resonance energies, J, π, spectroscopic factors, Γp, Γγ using shell model with the GXPF1A interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.055806
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2017PR01      Nucl.Instrum.Methods Phys.Res. A846, 50 (2017)

V.S.Prasher, M.Cromaz, E.Merchan, P.Chowdhury, H.L.Crawford, C.J.Lister, C.M.Campbell, I.Y.Lee, A.O.Macchiavelli, D.C.Radford, A.Wiens

Sensitivity of GRETINA position resolution to hole mobility

doi: 10.1016/j.nima.2016.11.038
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2017RI06      Phys.Rev. C 96, 011303 (2017)

A.L.Richard, H.L.Crawford, P.Fallon, A.O.Macchiavelli, V.M.Bader, D.Bazin, M.Bowry, C.M.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, A.Gade, E.Ideguchi, H.Iwasaki, M.D.Jones, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, C.Morse, J.Rissanen, M.Salathe, D.Smalley, S.R.Stroberg, D.Weisshaar, K.Whitmore, A.Wiens, S.J.Williams, K.Wimmer, T.Yamamato

Strongly coupled rotational band in 33Mg

NUCLEAR REACTIONS 9Be(46Ar, 33Mg), E=102 MeV/nucleon, [secondary 46Ar beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction at NSCL-MSU facility]; measured reaction products, Eγ, Iγ, (33Mg)γ-, γγ-coin using S800 spectrograph for particle identification and GRETINA array for γ detection. 33Mg; deduced low-energy yrast levels, J, π, rotational band, ground-state magnetic moment, and intrinsic quadrupole moment. Comparison with strong-coupling limit of a rotational model.

doi: 10.1103/PhysRevC.96.011303
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2017VO01      Phys.Rev. C 95, 024316 (2017)

A.Vogt, B.Birkenbach, P.Reiter, A.Blazhev, M.Siciliano, K.Hadynska-Klek, J.J.Valiente-Dobon, C.Wheldon, E.Teruya, N.Yoshinaga, K.Arnswald, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, S.J.Freeman, B.Fu, A.Gadea, K.Geibel, W.Gelletly, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, R.Hirsch, H.Hua, P.R.John, J.Jolie, A.Jungclaus, L.Kaya, W.Korten, I.Y.Lee, S.Leoni, L.Lewandowski, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, C.Muller-Gatermann, D.Napoli, C.J.Pearson, L.Pellegri, Zs.Podolyak, G.Pollarolo, A.Pullia, M.Queiser, F.Radeck, F.Recchia, P.H.Regan, D.Rosiak, N.Saed-Samii, E.Sahin, F.Scarlassara, D.Schneiders, M.Seidlitz, B.Siebeck, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, V.Vandone, D.D.Warner, A.Wiens, C.Y.Wu, K.O.Zell

Isomers and high-spin structures in the N=81 isotones 135Xe and 137Ba

NUCLEAR REACTIONS 238U(136Xe, X), E=1 GeV; 208Pb(136Xe, X), E=930 MeV; 198Pt(136Xe, X), E=850 MeV; 130Te(11B, 3np)137Ba, E=54 MeV; measured reaction products, Eγ, Iγ, (particle)γ-coin, γγ-coin, (TKEL)γ-coin, half-lives of isomers by γγ(t). Four experiments carried out using 136Xe beam with 208Pb and 238U targets using PRISMA magnetic mass spectrometer and AGATA demonstrator array at Legnaro PIAVE+ALPI accelerator, 136Xe beam with 198Pt target using GAMMASPHERE and CHICO particle detector arrays at LBNL-cyclotron facility, and 11B beam with 130Te target using HORUS array at Cologne FN Tandem accelerator. 135Xe, 137Ba; deduced levels, J, π, isomers, configurations, B(E2). Comparison with shell-model calculations. Systematics of levels and isomers in N=81 nuclides 131Sn, 133Te, 135Xe, 137Ba, 139Ce, 141Nd, 143Sm and 145Gd.

NUCLEAR STRUCTURE 135Xe, 137Ba; calculated levels, J, π, B(E2) using large-scale shell-model with PQM130 and SN100PN interactions, average proton occupation numbers in each single particle orbit of the gdsh model space. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.024316
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2017VO06      Phys.Rev. C 96, 024321 (2017)

A.Vogt, M.Siciliano, B.Birkenbach, P.Reiter, K.Hadynska-Klek, C.Wheldon, J.J.Valiente-Dobon, E.Teruya, N.Yoshinaga, K.Arnswald, D.Bazzacco, A.Blazhev, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, C.Fransen, S.J.Freeman, B.Fu, A.Gadea, W.Gelletly, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, R.Hetzenegger, R.Hirsch, H.Hua, P.R.John, J.Jolie, A.Jungclaus, V.Karayonchev, L.Kaya, W.Korten, I.Y.Lee, S.Leoni, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, C.Muller-Gatermann, D.Napoli, C.J.Pearson, Zs.Podolyak, G.Pollarolo, A.Pullia, M.Queiser, F.Recchia, P.H.Regan, J.-M.Regis, N.Saed-Samii, E.Sahin, F.Scarlassara, M.Seidlitz, B.Siebeck, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, D.D.Warner, K.Wolf, C.Y.Wu, K.O.Zell

High-spin structures in 132Xe and 133Xe and evidence for isomers along the N=79 isotones

NUCLEAR REACTIONS 208Pb(136Xe, X)132Xe/133Xe, E=6.84 MeV/nucleon from the PIAVE+ALPI accelerator complex at LNL-Legnaro; 198Pt(136Xe, X)132Xe/133Xe, E=6.25 MeV/nucleon from the LBNL cyclotron facility; 130Te(α, nγ), (α, 2nγ), E=19 MeV from Cologne FN Tandem accelerator; measured Eγ, Iγ, γγ-, (particle)γ-coin using Advanced GAmma Tracking Array (AGATA) in a demonstrator configuration, and magnetic spectrometer PRISMA for particle identification, (particle)γ-coin using Gammasphere array and CHICO gas-detector array, γγ(θ) using HORUS array at Cologne. 132,133Xe; deduced high-spin levels, J, π, half-life of a micro-sec isomer in 133Xe with Jπ=(23/2+), multipolarities, mixing ratios. Comparison with shell-model calculations using PQM130 and SN100PN interactions. Systematics of level energies in N=78 and 79 isotones from Z=50 to 64, and even-A A=120-136 Xe isotopes.

doi: 10.1103/PhysRevC.96.024321
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2016CR01      Phys.Rev. C 93, 031303 (2016)

H.L.Crawford, P.Fallon, A.O.Macchiavelli, A.Poves, V.M.Bader, D.Bazin, M.Bowry, C.M.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, A.Gade, E.Ideguchi, H.Iwasaki, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, C.Morse, A.L.Richard, J.Rissanen, D.Smalley, S.R.Stroberg, D.Weisshaar, K.Whitmore, A.Wiens, S.J.Williams, K.Wimmer, T.Yamamato

Rotational band structure in 32Mg

NUCLEAR REACTIONS 9Be(46Ar, 32Mg), E=102 MeV/nucleon, [secondary 46Ar beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction]; measured Eγ, Iγ, (32Mg)γ-, γγ-coin using A1900 fragment separator, S800 spectrograph and GRETINA array at NSCL-MSU. 32Mg; deduced levels, J, π, rotational band in a nuclide in "island of inversion", configuration. Comparison with large-scale shell model calculations using ANTOINE code with the SDPF-U-MIX effective two-body interaction.

doi: 10.1103/PhysRevC.93.031303
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2016LO10      Phys.Rev. C 94, 024340 (2016)

C.Loelius, H.Iwasaki, B.A.Brown, M.Honma, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, T.Braunroth, C.M.Campbell, A.Dewald, A.Gade, N.Kobayashi, C.Langer, I.Y.Lee, A.Lemasson, E.Lunderberg, C.Morse, F.Recchia, D.Smalley, S.R.Stroberg, R.Wadsworth, C.Walz, D.Weisshaar, A.Westerberg, K.Whitmore, K.Wimmer

Lifetime measurement of the 4+1 state of 58Ni with the recoil distance method

NUCLEAR REACTIONS 9Be(74Kr, 58Ni), E=93 MeV/nucleon, [secondary 74Kr beam from 9Be(78Kr, X), E=150 MeV/nucleon]; measured reaction products, Eγ, Iγ, (58Ni ions)γ-coin, half-life of the first 4+ state in 58Ni by recoil distance Doppler shift method using Triple Plunger for Exotic Beams (TRIPLEX) coupled with GRETINA array and the S800 spectrograph at NSCL-MSU facility. 58Ni; deduced level, B(E2) for the first 4+ state. Comparison with GXPF1A shell-model calculations, and with previous measurements.

doi: 10.1103/PhysRevC.94.024340
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2016MA73      Phys.Rev. C 94, 051303 (2016)

A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, I.Y.Lee, M.Salathe, B.A.Brown, A.Poves

The 30Mg(t, p)32Mg "puzzle" reexamined

NUCLEAR STRUCTURE 32Mg; calculated energies and wave-function amplitudes of first three 0+ states, mixing strength required to reproduce the experimental energy of the second 0+ state. Phenomenological three-level mixing model of unperturbed 0p0h, 2p2h, and 4p4h states.

NUCLEAR REACTIONS 30Mg(t, p)32Mg, E not given; calculated cross-section ratio σ(second 0+)/σ(first 0+) in 2n-transfer reaction using 32Mg wave-function amplitudes from three-level mixing model calculations. Comparison with experimental data, and resolution of the puzzle resulting from a two-state mixing model.

doi: 10.1103/PhysRevC.94.051303
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2016VO04      Phys.Rev. C 93, 054325 (2016)

A.Vogt, B.Birkenbach, P.Reiter, A.Blazhev, M.Siciliano, J.J.Valiente-Dobon, C.Wheldon, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, S.J.Freeman, A.Gadea, K.Geibel, W.Gelletly, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, H.Hua, P.R.John, J.Jolie, A.Jungclaus, W.Korten, I.Y.Lee, S.Leoni, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, D.Napoli, C.J.Pearson, L.Pellegri, Zs.Podolyak, G.Pollarolo, A.Pullia, F.Radeck, F.Recchia, P.H.Regan, E.Sahin, F.Scarlassara, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, V.Vandone, D.Ward, D.D.Warner, A.Wiens, C.Y.Wu

High-spin structure of 134Xe

NUCLEAR REACTIONS 198Pt(136Xe, 134Xe), E=850 MeV; 208Pb(136Xe, 134Xe), E=930 MeV; 238U(136Xe, 134Xe), E=1 GeV; measured Eγ, Iγ, γγ-coin, γ(θ), time-of-flight total kinetic energy loss (TKEL) using Gammasphere and Chico arrays at LBNL cyclotron facility for the 198Pt+136Xe reaction, and PRISMA spectrometer, Dante and AGATA arrays at PIAVE+ALPI accelerator complex for the 208Pb+136Xe and 238U+136Xe reactions. 134Xe; deduced high-spin levels, J, π, multipolarity, configurations. Comparison with shell-model calculations using the jj55 effective interaction.

doi: 10.1103/PhysRevC.93.054325
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2016WI01      Phys.Rev. C 93, 024303 (2016)

M.Wiedeking, M.Krticka, L.A.Bernstein, J.M.Allmond, M.S.Basunia, D.L.Bleuel, J.T.Burke, B.H.Daub, P.Fallon, R.B.Firestone, B.L.Goldblum, R.Hatarik, P.T.Lake, A.C.Larsen, I.-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo, A.Volya

γ-ray decay from neutron-bound and unbound states in 95Mo and a novel technique for spin determination

NUCLEAR REACTIONS 94Mo(d, p), E=5.5 MeV/nucleon; measured Ep, Eγ, Iγ, pγ-, pγγ-coin using STARS-LIBERACE detector array at LBNL, cyclotron facility. 95Mo; deduced levels, J, π, γ-branching ratios, average γ-ray emission probabilities. Novel method for spin determination. Comparison with ENSDF evaluation, statistical gamma-ray cascade model calculations, and with shell-model calculations.

doi: 10.1103/PhysRevC.93.024303
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2015HE22      Phys.Rev. C 92, 024315 (2015)

T.W.Henry, M.A.Bentley, R.M.Clark, P.J.Davies, V.M.Bader, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, A.M.Bruce, C.M.Campbell, H.L.Crawford, M.Cromaz, P.Fallon, A.Gade, J.Henderson, H.Iwasaki, D.G.Jenkins, I.Y.Lee, A.Lemasson, S.M.Lenzi, A.O.Macchiavelli, D.R.Napoli, A.J.Nichols, S.Paschalis, M.Petri, F.Recchia, J.Rissanen, E.C.Simpson, S.R.Stroberg, R.Wadsworth, D.Weisshaar, A.Wiens, C.Walz

Triplet energy differences and the low lying structure of 62Ga

NUCLEAR REACTIONS 9Be(64Ga, 62Ga), (65Ge, 62Ga), E not given, [secondary 64Ga and 65Ge beams extracted using A1900 separator from 9Be(78Kr, X), E=150 MeV/nucleon primary reaction]; measured Eγ, Iγ, 62Ga particle spectra, (62Ga)γ-, γγ-coin using Gamma-Ray Energy Tracking In-Beam Nuclear Array (GRETINA) for γ rays and S800 spectrograph and cathode readout drift chambers for particles at NSCL-MSU facility. 62Ga; deduced levels populated by 2n and 1p2n knockout reactions, J, π, isospin using triplet energy differences (TED) as guide. Comparison with shell-model predictions of low lying T=0 and T=1 states using ANTOINE and LNPS interactions. Cross section calculations for the knockout process.

COMPILATION A=22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 74; reviewed systematics of triplet energy differences (TED) for the known T=1, 2+ states.

doi: 10.1103/PhysRevC.92.024315
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2015PE09      Phys.Lett. B 748, 173 (2015)

M.Petri, P.Fallon, A.O.Macchiavelli, S.Heil, E.Rodriguez-Vieitez, D.Bazin, C.M.Campbell, R.M.Clark, M.Cromaz, A.Gade, T.Glasmacher, I.Y.Lee, S.Malbrunot-Ettenauer, S.Paschalis, A.Ratkiewicz, J.R.Terry, D.Weisshaar, M.Wiedeking

Competing particle-hole excitations in 30Na: Constraining state-of-the-art effective interactions

NUCLEAR REACTIONS 9Be(31Mg, p)30Na, E=93 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, band structure. Comparison with shell model calculations using the SDPF-M interaction.

doi: 10.1016/j.physletb.2015.06.067
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2014CR02      Phys.Rev. C 89, 041303 (2014)

H.L.Crawford, P.Fallon, A.O.Macchiavelli, R.M.Clark, B.A.Brown, J.A.Tostevin, D.Bazin, N.Aoi, P.Doornenbal, M.Matsushita, H.Scheit, D.Steppenbeck, S.Takeuchi, H.Baba, C.M.Campbell, M.Cromaz, E.Ideguchi, N.Kobayashi, Y.Kondo, G.Lee, I.Y.Lee, J.Lee, K.Li, S.Michimasa, T.Motobayashi, T.Nakamura, S.Ota, S.Paschalis, M.Petri, T.Sako, H.Sakurai, S.Shimoura, M.Takechi, Y.Togano, H.Wang, K.Yoneda

Shell and shape evolution at N = 28: The 40Mg ground state

NUCLEAR REACTIONS C(42Si, 40Mg), [42Si secondary beam from 9Be(48Ca, X), E=345 MeV/nucleon], E=238 MeV/nucleon; measured reaction products, inclusive σ for the production of 40Mg through two-proton knockout using BigRIPS and ZDS spectrometers at RIBF-RIKEN facility. 40Mg; deduced σ for ground state; calculated levels, J, π, σ, probabilities of the prolate contributions in 42Si and 40Mg ground-state wave functions using SDPF-MU and SDPFU-Si shell-models with eikonal reaction theory.

doi: 10.1103/PhysRevC.89.041303
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2014FO05      Phys.Rev. C 89, 017303 (2014)

N.Fotiades, J.A.Cizewski, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, W.Younes

High-spin states in 124Te

NUCLEAR REACTIONS 173Yb(24Mg, X), E=134.5 MeV; 176Yb(23Na, X), E=129 MeV; measured Eγ, Iγ, γγ-coin following compound nucleus fission using Gammasphere array at LBNL cyclotron facility. 124Te; deduced high-spin levels, J, π, yrast structure, configurations. Systematics of yrast positive-parity structures in 116,118,120,122,124,126,128Sn and 118,120,122,124,126,128,130Te.

doi: 10.1103/PhysRevC.89.017303
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2014GA07      Phys.Rev.Lett. 112, 112503 (2014)

A.Gade, R.V.F.Janssens, D.Weisshaar, B.A.Brown, E.Lunderberg, M.Albers, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, C.M.Campbell, M.P.Carpenter, C.J.Chiara, H.L.Crawford, M.Cromaz, U.Garg, C.R.Hoffman, F.G.Kondev, C.Langer, T.Lauritsen, I.Y.Lee, S.M.Lenzi, J.T.Matta, F.Nowacki, F.Recchia, K.Sieja, S.R.Stroberg, J.A.Tostevin, S.J.Williams, K.Wimmer, S.Zhu

Nuclear Structure Towards N=40 60Ca: In-Beam γ-Ray Spectroscopy of 58, 60Ti

NUCLEAR REACTIONS Be(61V, X)58Ti/60Ti, E=90 MeV/nucleon; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, partial σ. Comparison with calculations using GXPF1A and LNPS spectroscopic factors, GRETINA at MSU.

doi: 10.1103/PhysRevLett.112.112503
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2014IW01      Phys.Rev.Lett. 112, 142502 (2014)

H.Iwasaki, A.Lemasson, C.Morse, A.Dewald, T.Braunroth, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, C.M.Campbell, A.Gade, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, F.Recchia, D.Smalley, S.R.Stroberg, R.Wadsworth, C.Walz, D.Weisshaar, A.Westerberg, K.Whitmore, K.Wimmer

Evolution of Collectivity in 72Kr: Evidence for Rapid Shape Transition

NUCLEAR REACTIONS 9Be(74Kr, 74Kr'), (74Kr, 72Kr'), E<150 MeV/nucleon; measured reaction products, Eγ, Iγ. 72,74Kr; deduced energy levels, B(E2) values. Comparison with theoretical calculations, available data.

doi: 10.1103/PhysRevLett.112.142502
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2014LA16      Phys.Rev.Lett. 113, 032502 (2014)

C.Langer, F.Montes, A.Aprahamian, D.W.Bardayan, D.Bazin, B.A.Brown, J.Browne, H.Crawford, R.H.Cyburt, C.Domingo-Pardo, A.Gade, S.George, P.Hosmer, L.Keek, A.Kontos, I-Y.Lee, A.Lemasson, E.Lunderberg, Y.Maeda, M.Matos, Z.Meisel, S.Noji, F.M.Nunes, A.Nystrom, G.Perdikakis, J.Pereira, S.J.Quinn, F.Recchia, H.Schatz, M.Scott, K.Siegl, A.Simon, M.Smith, A.Spyrou, J.Stevens, S.R.Stroberg, D.Weisshaar, J.Wheeler, K.Wimmer, R.G.T.Zegers

Determining the rp-Process Flow through 56Ni: Resonances in 57Cu(p, γ)58Zn identified with GRETINA

NUCLEAR REACTIONS 2H(57Cu, n), E=75 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance energies, J, π, reaction rates. Shell model calculations, GXPF1A interaction.

doi: 10.1103/PhysRevLett.113.032502
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2014LI46      Phys.Rev. C 90, 047303 (2014)

H.J.Li, S.J.Zhu, J.H.Hamilton, E.H.Wang, A.V.Ramayya, Y.J.Chen, J.K.Hwang, J.Ranger, S.H.Liu, Z.G.Xiao, Y.Huang, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.M.Ter-Akopian, Yu.Ts.Oganessian, W.C.Ma

Reinvestigation of high spin states and proposed octupole correlations in 147Ce

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, triple- and four-fold γγ-coin using Gammasphere detector array at LBNL facility. 147Ce; deduced high-spin levels, bands, B(E1)/B(E2) ratios, octupole correlations. Comparison with reflection-asymmetric shell-model calculations. Systematics of octupole band structures in 145Ba, 147Ce, and 149Nd.

doi: 10.1103/PhysRevC.90.047303
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2014LU07      Phys.Rev. C 89, 044326 (2014)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, E.Wang, Y.X.Liu, C.F.Jiao, W.Y.Liang, F.R.Xu, Y.Sun, S.Frauendorf, J.K.Hwang, S.H.Liu, S.J.Zhu, N.T.Brewer, I.Y.Lee, G.M.Ter-Akopian, Yu.Oganessian, R.Donangelo, W.C.Ma

First observation of a rotational band and the role of the proton intruder orbital π 1/2+[431] in very neutron-rich odd-odd 106Nb

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, 3- and 4-fold γγ-coin, coincidences with γ rays from complementary A=142-144 La isotopes , fission yield ratio using Gammasphere array at LBNL. 104,106Nb; deduced high-spin levels, J, π, rotational bands, alignment and moments of inertia plots, configurations. Comparison with projected shell model calculations. Role of 1/2[431] proton intruder orbital, and shape evolution.

NUCLEAR STRUCTURE 104,106Nb; calculated levels, J, π, potential energy surfaces (PES), configurations, alignments, moments of inertia. Projected shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.044326
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2014MA97      Phys.Rev. C 90, 067305 (2014)

A.O.Macchiavelli, M.Petri, P.Fallon, S.Paschalis, R.M.Clark, M.Cromaz, I.Y.Lee

Phenomenological analysis of B(E2) transition strengths in neutron-rich carbon isotopes

NUCLEAR STRUCTURE 14,16,18,20C; analyzed B(E2) transition strengths for first 2+ states using a seniority based scheme; increase in collectivity explained as due to increased role of proton excitations. Prediction of B(E2) for first 2+ state in 22C.

doi: 10.1103/PhysRevC.90.067305
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2014WI04      Nucl.Data Sheets 119, 258 (2014)

M.Wiedeking, L.A.Bernstein, J.M.Allmond, M.S.Basunia, D.L.Bleuel, J.T.Burke, P.Fallon, R.B.Firestone, B.L.Goldblum, R.Hatarik, M.Krticka, P.T.Lake, A.C.Larsen, I.-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo

Photon Strength Function at Low Energies in 95Mo

NUCLEAR REACTIONS 94Mo(d, p), E=11 MeV; measured Eγ, Iγ, Ep, Ip, pγ-coin, charged particles using STARS-LIBERACE array; deduced γ-ray strength function energy dependence below 7 MeV using also (3He, α) data reference; calculated γ-ray strength function using various assumptions on reaction mechanism.

doi: 10.1016/j.nds.2014.08.071
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2013CR02      Phys.Rev.Lett. 110, 242701 (2013)

H.L.Crawford, R.M.Clark, P.Fallon, A.O.Macchiavelli, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, D.L.Bleuel, C.M.Campbell, M.Cromaz, G.de Angelis, A.Gade, R.O.Hughes, I.Y.Lee, S.M.Lenzi, F.Nowacki, S.Paschalis, M.Petri, A.Poves, A.Ratkiewicz, T.J.Ross, E.Sahin, D.Weisshaar, K.Wimmer, R.Winkler

Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes

NUCLEAR REACTIONS Bi(66Fe, 66Fe'), (68Fe, 68Fe'), (64Cr, 64Cr'), E<130 MeV/nucleon; measured reaction products, Eγ, Iγ. 66,68Fe, 64Cr; deduced σ, B(E2). Comparison with state-of-the-art large-scale shell-model calculations within the full fpgd neutron orbital model space using the Lenzi-Nowacki-Poves-Sieja effective interaction.

doi: 10.1103/PhysRevLett.110.242701
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2013FO31      Phys.Rev. C 88, 064315 (2013)

N.Fotiades, J.A.Cizewski, K.Higashiyama, N.Yoshinaga, E.Teruya, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, W.Younes

Medium-spin states in 135Cs

NUCLEAR REACTIONS 208Pb(18O, X)135Cs, E=91 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array at LBNL cyclotron facility. 135Cs; deduced high-spin levels, J, π, B(E2), configuration. 85,86Br, 95Y; observed γ from complementary fission fragments. Systematics of level structures in 133I, 134Xe, 135Cs, 136Ba. Comparison with shell-model calculations.

NUCLEAR STRUCTURE 135Cs; calculated levels, J, π, B(E2) using shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.064315
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2013KU07      Phys.Rev. C 87, 044323 (2013)

I.Kuti, J.Timar, D.Sohler, E.S.Paul, K.Starosta, A.Astier, D.Bazzacco, P.Bednarczyk, A.J.Boston, N.Buforn, H.J.Chantler, C.J.Chiara, R.M.Clark, M.Cromaz, M.Descovich, Zs.Dombradi, P.Fallon, D.B.Fossan, C.Fox, A.Gizon, J.Gizon, A.A.Hecht, N.Kintz, T.Koike, I.Y.Lee, S.Lunardi, A.O.Macchiavelli, P.J.Nolan, B.M.Nyako, C.M.Petrache, J.A.Sampson, H.C.Scraggs, T.G.Tornyi, R.Wadsworth, A.Walker, L.Zolnai

Medium- and high-spin band structure of the chiral candidate 132La

NUCLEAR REACTIONS 100Mo(36S, 3np), E=160 MeV; 116Cd(23Na, 3nα), E=115 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γ(θ, lin pol), conversion coefficients using the EUROBALL array at IReS, Strasbourg, and Gammasphere array. 132La; deduced high-spin levels, J, π, multipolarity, bands, B(M1)/B(E2), alignments, Routhians, configurations, chiral partners. Comparison with band structure in 134Pr.

doi: 10.1103/PhysRevC.87.044323
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2013LI52      Phys.Rev. C 88, 054311 (2013)

H.J.Li, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Y.X.Liu, Y.Sun, Z.G.Xiao, E.H.Wang, J.M.Eldridge, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian, W.C.Ma

Identification of multi-phonon γ-vibrational bands in odd-Z 105Nb

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, three and four-fold γγ-coin using Gammasphere array at LBNL facility. 105Nb; deduced high-spin levels, J, π, multi-phonon γ-vibrational bands, alignment plots; calculated total Routhian surfaces (TRS) with cranked shell model. Comparison with triaxial projected shell model calculations. Systematics of level energies and bandhead energies for ground, one-phonon and two-phonon bands in 103,105Nb, 104,105,106,108Mo, 107,109Tc, 108,110,112,114Ru.

doi: 10.1103/PhysRevC.88.054311
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2013LU18      Nucl.Phys. A919, 67 (2013); Erratum Nucl.Phys. A983, 321 (2019)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, S.Frauendorf, J.K.Hwang, N.J.Stone, S.J.Zhu, N.T.Brewer, E.Wang, I.Y.Lee, S.H.Liu, G.M.Ter Akopian, A.V.Daniel, Yu.Ts.Oganessian, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole, Y.Shi, F.R.Xu

New insights into the nuclear structure in neutron-rich 112, 114, 115, 116, 117, 118Pd

RADIOACTIVITY 252Cf(SF); measured fission fragments Eγ, Iγ(θ), γγ-coin using Compton-suppressed Ge detectors of Gammasphere array. 112,114,115,116,117,118Pd deduced levels, J, π, γ transitions, rotational bands, γ bands, triaxial deformation, wobbling, band crossing, backbanding, shape evolution; calculated deformation, shape evolution, band crossing using TRS (total Ruthian surface).

doi: 10.1016/j.nuclphysa.2013.10.002
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2013RI07      Phys.Rev. C 88, 044313 (2013)

J.Rissanen, R.M.Clark, K.E.Gregorich, J.M.Gates, C.M.Campbell, H.L.Crawford, M.Cromaz, N.E.Esker, P.Fallon, U.Forsberg, O.Gothe, I.-Y.Lee, H.L.Liu, A.O.Machiavelli, P.Mudder, H.Nitsche, G.Pang, A.Rice, D.Rudolph, M.A.Stoyer, A.Wiens, F.R.Xu

Decay of the high-K isomeric state to a rotational band in 257Rf

NUCLEAR REACTIONS 208Pb(50Ti, n), (50Ti, 2n), E=238, 243, 258 MeV; measured time-of-flight for Rf implantation events, recoil-electron, recoil-electron-α, recoil-electron-fission events, Eγ, Iγ, ce, Eα, γ(recoil electron)-, γ(recoil electron)-fission coin, delayed γ and ce, half-lives of ground state and isomers at LBNL cyclotron facility. 257Rf; deduced high-spin levels, J, π, multipolarity, band, high-K isomer, [gK-gR]/Q0 ratios, configurations of 1-qp and 3-qp states, hindrance factor. 256Rf; deduced levels, K-isomers, J, π, multipolarity, configurations.

RADIOACTIVITY 257Rf, 253No(α)[257Rf from 208Pb(50Ti, n), E=238, 243, 258 MeV]; measured Eα. 249Fm, 253No; deduced levels.

doi: 10.1103/PhysRevC.88.044313
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2012FO25      Eur.Phys.J. A 48, 117 (2012)

N.Fotiades, J.A.Cizewski, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, W.Younes

States built on the 9/2+ isomers in 91, 93Y

NUCLEAR REACTIONS 173Yb(24Mg, X), E=134.5 MeV;176Yb(23Na, X), E=129 MeV; measured Eγ, Iγ, γγ-coin. 91,93Y deduced transition scheme, levels, J, π, isomeric states excitation. Deduced nuclear levels systematics around Yb using present work and data.

doi: 10.1140/epja/i2012-12117-3
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2012GO06      Phys.Rev. C 85, 054616 (2012)

B.L.Goldblum, M.Wiedeking, T.Reed, K.Alfonso, J.M.Allmond, L.A.Bernstein, D.L.Bleuel, F.S.Dietrich, R.Hatarik, P.T.Lake, I.-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo, R.Vial, J.Vujic

Indirect determination of neutron capture cross sections on spherical and near-spherical nuclei using the surrogate method

NUCLEAR REACTIONS 92,94Mo(d, p), E=11 MeV; measured particle spectrum, Eγ, Iγ, (particle)γ-coin using STARS-LIBERACE array. DWBA analysis. 92Mo(n, γ), E=80-890 keV; deduced capture cross section using the absolute surrogate and surrogate ratio methods (SRM) relative to 94Mo(n, γ) cross section. Gamma decay tagging techniques. Dicebox statistical model analysis for gamma cascades. Comparison with ENDF/B-VII.0 evaluation.

doi: 10.1103/PhysRevC.85.054616
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2012LI54      Phys.Rev. C 86, 067302 (2012)

H.J.Li, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Z.G.Xiao, M.Sakhaee, J.Y.Guo, S.W.Chen, N.T.Brewer, S.H.Liu, K.Li, E.Y.Yeoh, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.Ter-Akopian, A.Daniel, Yu.Ts.Oganessian, W.C.Ma

Identification of a new side-band and proposed octupole correlations in very neutron-rich 152Ce

RADIOACTIVITY 252Cf(SF); measured prompt γ spectrum, Eγ, Iγ, γγ-coin using Gammasphere array at LBNL. 152Ce; deduced high-spin levels, J, p, rotational bands, β2 and β3 deformations, B(E1)/B(E2) ratios, moments of inertia plots, octupole band with s=+1. Comparison with calculations in a reflection asymmetric relativistic mean-field (RAS-RMF) approach. Calculated β2 versus β3 contour plot.

doi: 10.1103/PhysRevC.86.067302
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2012LU01      Nucl.Phys. A874, 32 (2012)

Y.X.Luo, J.O.Rasmussen, C.S.Nelson, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, C.Goodin, N.J.Stone, S.J.Zhu, N.T.Brewer, Ke Li, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

New high-spin level schemes and excitation modes of 117, 118, 119, 120, 122Cd

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 117,118,119,120,122Cd deduced levels, J, π, quasi-rotational bands, configurations, B(E1), B(E2), angular correlations of γ in cascade; calculated yrast bands, B(E1), B(E2), deformation, triaxiality using various models and total Routhian surface, deformations, triaxiality.

doi: 10.1016/j.nuclphysa.2011.11.001
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2012PE16      Phys.Rev. C 86, 044329 (2012)

M.Petri, S.Paschalis, R.M.Clark, P.Fallon, A.O.Macchiavelli, K.Starosta, T.Baugher, D.Bazin, L.Cartegni, H.L.Crawford, M.Cromaz, U.Datta Pramanik, G.de Angelis, A.Dewald, A.Gade, G.F.Grinyer, S.Gros, M.Hackstein, H.B.Jeppesen, I.Y.Lee, S.McDaniel, D.Miller, M.M.Rajabali, A.Ratkiewicz, W.Rother, P.Voss, K.A.Walsh, D.Weisshaar, M.Wiedeking, B.A.Brown, C.Forssen, P.Navratil, R.Roth

Structure of 16C: Testing shell model and ab initio approaches

NUCLEAR REACTIONS 9Be(17N, X)16O, E=72 MeV/nucleon, [17N secondary beam from 9Be(22Ne, X), E=150 MeV/nucleon primary reaction]; measured Eγ, Iγ, σ, half-life of first 2+ state in 16O by RDM plunger method using SeGA array at NSCL facility. 16C; deduced levels, J, π, B(E2), spectroscopic factors and proton amplitude of first 2+ state, gamma-ray branching ratios from second 2+ state. Comparison of with shell-model calculations using three interactions.

doi: 10.1103/PhysRevC.86.044329
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2012WA35      Phys.Rev. C 86, 064319 (2012)

D.Ward, A.O.Macchiavelli, R.M.Clark, D.Cline, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, A.Gorgen, A.B.Hayes, G.J.Lane, I.-Y.Lee, T.Nakatsukasa, G.Schmidt, F.S.Stephens, C.E.Svensson, R.Teng, K.Vetter, C.Y.Wu

Band structure of 235U

NUCLEAR REACTIONS 235U(136Xe, 136Xe'), E=720 MeV; 235U(40Ca, 40Ca'), E=184 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, Coulomb excitation yields, γ branching ratios using Gammasphere, 8π and CHICO arrays. 235U; deduced high-spin levels, J, π, B(M1), B(E2), B(E3) from Winther-deBoer analysis, gK, magnetic decoupling parameter, rotational bands, configurations. Analyzed coriolis interaction in j15/2 orbital. Comparison with quasiparticle random phase approximation (QRPA) calculations for B(E3). Discussed E3 correlations and Coriolis effects.

doi: 10.1103/PhysRevC.86.064319
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2012WI04      Phys.Rev.Lett. 108, 162503 (2012)

M.Wiedeking, L.A.Bernstein, M.Krticka, D.L.Bleuel, J.M.Allmond, M.S.Basunia, J.T.Burke, P.Fallon, R.B.Firestone, B.L.Goldblum, R.Hatarik, P.T.Lake, I-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo

Low-Energy Enhancement in the Photon Strength of 95Mo

NUCLEAR REACTIONS 94Mo(d, p), E=11 MeV; measured reaction products, Eπ, Iπ, Eγ, Iγ, γ-γ-coin.; deduced photon strength functions, low-energy enhancement. Comparison with available data, quadratic fit.

doi: 10.1103/PhysRevLett.108.162503
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2012ZH03      Phys.Rev. C 85, 014330 (2012)

S.J.Zhu, M.Sakhaee, J.H.Hamilton, A.V.Ramayya, N.T.Brewer, J.K.Hwang, S.H.Liu, E.Y.Yeoh, Z.G.Xiao, Q.Xu, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, K.Li, W.C.Ma

Observation of new levels and proposed octupole correlations in neutron-rich 150Ce

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. 150Ce; deduced levels, J, π, multipolarity, high-spin rotational bands, B(E1)/B(E2) ratios, octupole bands. Systematics of octupole bands and moments of inertia plots in 144,146,148,150Ce.

doi: 10.1103/PhysRevC.85.014330
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2011BE57      J.Phys.:Conf.Ser. 312, 092017 (2011)

J.S.Berryman, R.M.Clark, K.E.Gregorich, J.M.Allmond, D.L.Bleuel, R.J.Cooper, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, O.Gothe, H.B.Jeppesen, D.Kaji, I.Y.Lee, A.O.Macchiavelli, K.Morimoto, H.Nitsche, S.Paschalis, M.Petri, J.Qian, L.Stavsetra, F.S.Stephens, M.A.Stoyer, T.J.Ross, H.Watanabe, M.Wiedeking

Nuclear spectroscopy of the heaviest elements: studies of 254No, 257Rf, and 261Sg

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=221 MeV;208Pb(50Ti, n), E=238 MeV;208Pb(54Cr, n), E=261 MeV; measured Eγ, Iγ using HPGe, recoils using MWPC, Eα, Iα, E(e), I(e), eγ-coin. 254No, 257Rf deduced levels, J, π, γ transitions, isomeric transition T1/2, bands, 257Rf α-decay T1/2, 254No g-factor.

doi: 10.1088/1742-6596/312/9/092017
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2011FO15      Phys.Rev. C 84, 054310 (2011)

N.Fotiades, M.Devlin, R.O.Nelson, J.A.Cizewski, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, W.Younes

States built on the 10+ isomers in 118, 120, 122, 124Sn

NUCLEAR REACTIONS 124Sn(n, xn), E=800 MeV; 173Yb(24Mg, X), E=134.5 MeV; 176Yb(23Na, X), E=129 MeV; 208Pb(18O, X), E=91 MeV; measured Eγ, Iγ, γγ-coin, excitation functions for (n, xn) reaction. Gammasphere array for heavy-ion reactions, and GEANIE spectrometer for neutron-induced reactions. 118,120,122,124Sn; deduced levels, J, π above 10+ isomer in fusion-fission reactions, configurations. 95,96,97Nb, 95,96,97,98,99,100Zr, 116,117,119Sn; measured Eγ, γγ-coin for complementary isotopes in the fission process. Systematics of 10+ and 12+ states in A=116-130 even-mass Sn isotopes. Comparison with Shell model calculations.

doi: 10.1103/PhysRevC.84.054310
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2011GI03      Nucl.Instrum.Methods Phys.Res. A648, 109 (2011)

J.Gibelin, M.Wiedeking, L.Phair, P.Fallon, S.Basunia, L.A.Bernstein, J.T.Burke, D.L.Bleuel, R.M.Clark, M.Cromaz, M.-A.Deleplanque, B.F.Goldblum, S.Gros, H.B.Jeppesen, P.T.Lake, I.-Y.Lee, S.R.Lesher, A.O.Macchiavelli, M.A.McMahan, J.Pavan, E.Rodriguez-Vieitez, N.D.Scielzo, L.G.Moretto

Channel selection of neutron-rich nuclei following fusion-evaporation reactions of light systems

NUCLEAR REACTIONS 9Be(9Be, X)15N/16N/12C/13C/15C/16C, E=30, 35, 40 MeV;12C(18O, X)27Mg/28Mg, E=50, 60 MeV; 11B, 12C(18O, X)26Mg/27Mg/25Mg/24Na, E not given; measured reaction products, Eγ, Iγ; deduced production yields. Comparison with PACE, LisFus and GEMINI calculations.

doi: 10.1016/j.nima.2011.05.041
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2011LI34      Int.J.Mod.Phys. E20, 1825 (2011)

K.Li, H.Hamilton, A.V.Ramayya, S.H.Liu, X.Q.Zhang, N.T.Brewer, J.K.Hwang, C.Goodin, S.J.Zhu, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, S.C.Wu, R.Donangelo, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.Unzhakova, J.D.Cole, W.C.Ma, M.A.Stoyer

Identification of high-spin states in neutron-rich 89, 90, 92Kr and 86Se

RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ, γ-γ-γ-coin. 88,90,92Kr, 86Se; deduced level schemes, energies, J, π. Comparison with nuclear systematics and angular correlation measurements.

doi: 10.1142/S0218301311019635
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2011PA27      Phys.Rev. C 84, 047302 (2011)

E.S.Paul, C.Fox, A.J.Boston, H.J.Chantler, C.J.Chiara, R.M.Clark, M.Cromaz, M.Descovich, P.Fallon, D.B.Fossan, A.A.Hecht, T.Koike, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, K.Starosta, R.Wadsworth, I.Ragnarsson

High-spin yrast states in the γ-soft nuclei 135Pr and 134Ce

NUCLEAR REACTIONS 116Cd(23Na, 4n), (23Na, 4np), E=115 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array. 135Pr, 134Ce; deduced levels, J, π, yrast bands, alignment plots, configurations; calculated potential energy surfaces. Comparison with cranking model calculations.

doi: 10.1103/PhysRevC.84.047302
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2011PA43      J.Phys.:Conf.Ser. 312, 092050 (2011)

S.Paschalis, P.Fallon, A.O.Macchiavelli, M.Petri, P.C.Bender, M.P.Carpenter, X.Chen, C.J.Chiara, R.M.Clark, M.Cromaz, S.Gros, L.Hamilton, C.R.Hoffman, R.V.F.Janssens, T.Lauritsen, I.Y.Lee, C.J.Lister, E.A.McCutchan, L.Phair, W.Reviol, D.G.Sarantites, D.Seweryniak, S.L.Tabor, Y.Toh, M.Wiedeking, S.Zhu

The deformed 0+ state in 34Si

NUCLEAR REACTIONS 18O(18O, 2p), E=25 MeV; measured Eγ, Iγ, Ep, Ip, γγ-coin, pγ-coin, pp-coin using GAMMASPHERE and MICROBALL. 34Si deduced levels, J, π, γ transitions.

doi: 10.1088/1742-6596/312/9/092050
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2011PE21      Phys.Rev.Lett. 107, 102501 (2011)

M.Petri, P.Fallon, A.O.Macchiavelli, S.Paschalis, K.Starosta, T.Baugher, D.Bazin, L.Cartegni, R.M.Clark, H.L.Crawford, M.Cromaz, A.Dewald, A.Gade, G.F.Grinyer, S.Gros, M.Hackstein, H.B.Jeppesen, I.Y.Lee, S.McDaniel, D.Miller, M.M.Rajabali, A.Ratkiewicz, W.Rother, P.Voss, K.A.Walsh, D.Weisshaar, M.Wiedeking, B.A.Brown

Lifetime Measurement of the 2+1 State in 20C

NUCLEAR REACTIONS 9Be, 184W(22O, X)20C, E=101 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced lifetime, B(E2). Comparison with systematics, shell model calculations.

doi: 10.1103/PhysRevLett.107.102501
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2011TI10      Phys.Rev. C 84, 044302 (2011)

J.Timar, K.Starosta, I.Kuti, D.Sohler, D.B.Fossan, T.Koike, E.S.Paul, A.J.Boston, H.J.Chantler, M.Descovich, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, A.O.Macchiavelli, C.J.Chiara, R.Wadsworth, A.A.Hecht, D.Almehed, S.Frauendorf

Medium- and high-spin band structure of the chiral-candidate nucleus 134Pr

NUCLEAR REACTIONS 116Cd(23Na, 5n), E=115 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ) DCO ratios using GAMMASPHERE array. 134Pr; deduced levels, J, π, conversion coefficients, multipolarity, bands, alignments, signature splittings, configurations, B(M1)/B(E2) ratios; calculated Routhians. Comparison with total Routhian surface (TRS) and tilted-axis cranking calculations.

doi: 10.1103/PhysRevC.84.044302
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2011YE03      Phys.Rev. C 83, 054317 (2011)

E.Y.Yeoh, S.J.Zhu, J.H.Hamilton, K.Li, A.V.Ramayya, Y.X.Liu, J.K.Hwang, S.H.Liu, J.G.Wang, Y.Sun, J.A.Sheikh, G.H.Bhat, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.B.Ding, L.Gu, Q.Xu, Z.G.Xiao, W.C.Ma

High-spin structure and multiphonon γ vibrations in very neutron-rich 114Ru

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 114Ru; deduced levels, J, π, bands, alignments. Systematics of level energies for 108,110,112,114Ru nuclei. Calculated Routhians using cranked-shell model with triaxial deformation parameters. Triaxial projected shell-model calculations for γ-vibrational band.

doi: 10.1103/PhysRevC.83.054317
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2010BE16      Phys.Rev. C 81, 064325 (2010); Publishers Note Phys.Rev. C 82, 029906 (2010)

J.S.Berryman, R.M.Clark, K.E.Gregorich, J.M.Allmond, D.L.Bleuel, M.Cromaz, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, S.Gros, I.Y.Lee, A.O.Macchiavelli, S.Paschalis, M.Petri, J.Qian, M.A.Stoyer, M.Wiedeking

Electromagnetic decays of excited states in 261Sg (Z=106) and 257Rf (Z=104)

NUCLEAR REACTIONS 208Pb(54Cr, n), E=261 MeV; 208Pb(50Ti, n), (50Ti, 2n), E=238 MeV; measured Eγ, E(ce), Eα, (recoil)(ce)(α)-, (recoil)(ce)(x ray)(α)-, (recoil)(ce)-, (recoil)(ce)(fission)-, γ(recoil)(ce)(α)-, γ(recoil)(ce)(x ray)(α)-, (recoil)(ce)(α)(α)-coin, half-lives. 257Rf, 261Sg; deduced levels, J, π, isomer, band, configurations. Comparison with calculated energy levels of 261Sg.

RADIOACTIVITY 256RF(SF); 257Rf, 261Sg(α); measured Eα, half-lives.

doi: 10.1103/PhysRevC.81.064325
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2010CL01      Phys.Lett. B 690, 19 (2010)

R.M.Clark, K.E.Gregorich, J.S.Berryman, M.N.Ali, J.M.Allmond, C.W.Beausang, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, H.B.Jeppesen, D.Kaji, I.Y.Lee, A.O.Macchiavelli, K.Morimoto, H.Nitsche, S.Paschalis, M.Petri, L.Stavsetra, F.S.Stephens, H.Watanabe, M.Wiedeking

High-K multi-quasiparticle states in 254No

RADIOACTIVITY 254No(IT) [from 208Pb(48Ca, 2n), E=221 MeV]; measured Eγ, Iγ, γ-particle-coin.; deduced J, π, level energies, rotational bands, decay of isomer state.

doi: 10.1016/j.physletb.2010.04.079
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2010EL06      Phys.Rev.Lett. 105, 182701 (2010)

P.A.Ellison, K.E.Gregorich, J.S.Berryman, D.L.Bleuel, R.M.Clark, I.Dragojevic, J.Dvorak, P.Fallon, C.Fineman-Sotomayor, J.M.Gates, O.R.Gothe, I.Y.Lee, W.D.Loveland, J.P.McLaughlin, S.Paschalis, M.Petri, J.Qian, L.Stavsetra, M.Wiedeking, H.Nitsche

New Superheavy Element Isotopes: 242Pu(48Ca, 5n)285114

NUCLEAR REACTIONS 242Pu(48Ca, Xn)285Fl/286Fl/287Fl/288Fl, E=256 MeV; measured reaction products, Eα, Iα; deduced σ, Q-values. Comparison with experimental values.

RADIOACTIVITY 285,286Fl, 281Cn, 277Ds, 273Hs, 269Sg(α); measured Eα; deduced Q(α). 265Rf, 282Cn(SF); measured SF decay energy.

doi: 10.1103/PhysRevLett.105.182701
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2010FA04      Phys.Rev. C 81, 041302 (2010)

P.Fallon, E.Rodriguez-Vieitez, A.O.Macchiavelli, A.Gade, J.A.Tostevin, P.Adrich, D.Bazin, M.Bowen, C.M.Campbell, R.M.Clark, J.M.Cook, M.Cromaz, D.C.Dinca, T.Glasmacher, I.Y.Lee, S.McDaniel, W.F.Mueller, S.G.Prussin, A.Ratkiewicz, K.Siwek, J.R.Terry, D.Weisshaar, M.Wiedeking, K.Yoneda, B.A.Brown, T.Otsuka, Y.Utsuno

Two-proton knockout from 32Mg: Intruder amplitudes in 30Ne and implications for the binding of 29, 31F

NUCLEAR REACTIONS 9Be(32Mg, 30Ne), E=86.7, 99.7 MeV/nucleon; measured Eγ, Iγ, and σ using SeGA array. 32Mg beam from 9Be(48Ca, X), E=140 MeV/nucleon. 30Ne; deduced levels, J, π, intruder configuration. 29,31F; discussed implications for binding energies. 32Mg; deduced configuration. Comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevC.81.041302
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2010FO10      Phys.Rev. C 82, 044306 (2010)

N.Fotiades, J.A.Cizewski, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, J.A.Becker, W.Younes

High-spin states in 96, 97Nb

NUCLEAR REACTIONS 173Yb(24Mg, X), E=134.5 MeV; 176Yb(23Na, X), E=129 MeV; measured Eγ, Iγ, γγ-coin following fission of compound nuclei using Gammasphere array. 96,97Nb; deduced levels, J, π, high-spin states. Comparison with level systematics of 95,96Zr. Systematics of first 2+ states in N=48-58, even-A Zr nuclei; first 13/2+ states in A=89-97 Nb nuclei, and low-spin states in 87Nb and 101Nb. 93,94,95Nb, 117,118,119Sn; measured Eγ, Iγ.

doi: 10.1103/PhysRevC.82.044306
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2010GU07      Chin.Phys.Lett. 27, 062501 (2010)

L.Gu, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, J.-G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, Q.Xu, E.Y.Yeoh, W.C.Ma

Collective Band Structures and Identification of One-Phonon and Two-Phonon γ-Vibrational Bands in 109Tc

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγγ-coin.; 109Tc; deduced level scheme, high spin states, yrast bands interpretation. Cranked shell model calculations.

doi: 10.1088/0256-307X/27/6/062501
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2010LE15      Nucl.Phys. A834, 743c (2010)

I.-Y.Lee

Gamma-ray tracking detectors: physics opportunities and status of GRETINA

doi: 10.1016/j.nuclphysa.2010.01.134
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2010LU02      Nucl.Phys. A838, 1 (2010)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, S.H.Liu, E.F.Jones, P.M.Gore, C.Goodin, N.J.Stone, S.J.Zhu, J.K.Hwang, Ke Li, H.L.Crowell, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

Octupole excitations in 141, 144Cs and the pronounced decrease of dipole moments with neutron number in odd-Z neutron-rich 141, 143, 144Cs

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere. 141,144Cs; deduced levels, J, p, conversion coefficients, multipolarities, bands, parity doublets, simplex structure, B(E1)/B(E2), dipole moment. Comparison with level structure of 143Cs and with systematics of adjacent N=85-92 nuclei. 105,106,107,108Tc; measured Eγ.

doi: 10.1016/j.nuclphysa.2010.03.003
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2010WA26      Nucl.Phys. A834, 94c (2010)

J.-G.Wang, S.-J.Zhu, J.H.Hamilton, H.-B.Ding, L.Gu, A.V.Ramayya, J.K.Hwang, S.H.Liu, K.Li, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, Q.Xu, E.-Y.Yeoh, Z.G.Xiao, W.C.Ma

Identification of Two-Phonon γ-Vibrational Bands in Odd-A Nuclei at A ∼ 100 Region

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 103Nb, 105Mo, 107Tc; deduced levels, J, π, high-spin states, 2γ-vibrational bands.

doi: 10.1016/j.nuclphysa.2010.01.028
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2010YE08      Phys.Rev. C 82, 027302 (2010)

E.Y.Yeoh, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, Y.X.Liu, Y.Sun, J.K.Hwang, S.H.Liu, J.G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.B.Ding, L.Gu, Q.Xu, Z.G.Xiao

Identification of a quasiparticle band in very neutron-rich 104Zr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 104Zr; deduced levels, J, π, bands, yrast structure, configurations. Comparison with projected shell model (PSM) calculations.

doi: 10.1103/PhysRevC.82.027302
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2010YE10      Eur.Phys.J. A 45, 147 (2010)

E.Y.Yeoh, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, Y.C.Yang, Y.Sun, J.K.Hwang, S.H.Liu, J.G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.B.Ding, K.Li, L.Gu, Q.Xu, Z.G.Xiao, W.C.Ma

High-spin states and a new band based on the isomeric state in 152Nd

RADIOACTIVITY 252Cf(SF); measured prompt, β-delayed Eγ, Iγ, γγ-coin. 152Nd deduced levels, J, π, high-spin states, isomeric transition T1/2, band on isomeric state; calculated levels, J, π using projected shell model.

doi: 10.1140/epja/i2010-11001-6
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2009BE26      Phys.Rev. C 80, 014302 (2009)

P.C.Bender, C.R.Hoffman, M.Wiedeking, J.M.Allmond, L.A.Bernstein, J.T.Burke, D.L.Bleuel, R.M.Clark, P.Fallon, B.L.Goldblum, T.A.Hinners, H.B.Jeppesen, S.Lee, I.-Y.Lee, S.R.Lesher, A.O.Macchiavelli, M.A.McMahan, D.Morris, M.Perry, L.Phair, N.D.Scielzo, S.L.Tabor, V.Tripathi, A.Volya

Approaching the "island of inversion": 34P

NUCLEAR REACTIONS 18O(18O, np), E=20, 24, 25, 30, 44 MeV; measured Eγ, Iγ, γγ-, pγ-coin, γ(θ), DSA and half-lives. 34P; deduced levels, J, π, multipolarities, transition strengths and configurations. Island of inversion. Comparison with shell-model calculations using a modified WBP interaction.

NUCLEAR STRUCTURE 32,34,36P; calculated levels, J, π and subshell occupancies using WBP interaction shell-model formalism.

doi: 10.1103/PhysRevC.80.014302
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2009DI12      Chin.Phys.C 33, Supplement 1, 154 (2009)

H.-B.Ding, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, K.Li, S.H.Liu, Y.X.Luo, J.O.Rasmussen, C.T.Goodin, I.Y.Lee, J.-G.Wang, X.-L.Che, L.Gu

Extended collective bands in neutron-rich 109Ru

RADIOACTIVITY 252Cf(SF); 109Ru; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, level scheme, ground state and negative and positive parity bands.

doi: 10.1088/1674-1137/33/S1/049
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2009GU11      Phys.Rev. C 79, 054317 (2009)

L.Gu, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, J.G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, X.L.Che, H.B.Ding, K.Li, Q.Xu, Y.Y.Yang, W.C.Ma

Collective band structures in neutron-rich 106, 107Tc

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 106,107Tc; deduced levels, J, π, bands, configurations, moments of inertia. 104,105Mo, 105,106Tc; systematics of alignments and moments of inertia.

doi: 10.1103/PhysRevC.79.054317
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2009GU20      Chin.Phys.Lett. 26, 092502 (2009)

L.Gu, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, J.-G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.-B.Ding, K.Li, Q.Xu, Y.-Y.Yang

Reinvestigation of Collective Bands in 107Tc

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin.; 107Tc; deduced levels, J, π, high-spin states, bands. Comparison with g-factor calculations.

doi: 10.1088/0256-307X/26/9/092502
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2009GU32      Chin.Phys.C 33, Supplement 1, 182 (2009)

L.Gu, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, K.Li, I.Y.Lee, Q.Xu, X.-L.Che, J.-G.Wang, H.-B.Ding, Y.-Y.Yang

High spin states in neutron-rich 106Tc nucleus

RADIOACTIVITY 252Cf(SF); 106Tc; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, level scheme, J, π, collective bands. Total Routhian surface (TRS) calculations.

doi: 10.1088/1674-1137/33/S1/058
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2009HA15      Acta Phys.Pol. B40, 523 (2009)

J.H.Hamilton, Y.X.Luo, S.J.Zhu, J.O.Rasmussen, A.V.Ramayya, C.Goodin, K.Li, J.K.Hwang, S.Liu, D.Almehed, S.Frauendorf, V.Dimitrov, Jing-ye Zhang, X.L.Che, Z.Jang, I.Stefanescu, A.Gelberg, G.M.Ter-Akopian, A.V.Daniel, I.Y.Lee, H.-B.Ding, R.Q.Xu, J.-G.Wang, Q.Xu, M.A.Stoyer, R.Donangelo, N.J.Stone

New Band Structures in Neutron-Rich Mo and Ru Isotopes


2009JE01      Phys.Rev. C 79, 031303 (2009)

H.B.Jeppesen, I.Dragojevic, R.M.Clark, K.E.Gregorich, M.N.Ali, J.M.Allmond, C.W.Beausang, D.L.Bleuel, M.Cromaz, M.A.Deleplanque, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, J.P.Greene, S.Gros, I.Y.Lee, H.L.Liu, A.O.Macchiavelli, S.L.Nelson, H.Nitsche, J.R.Pavan, L.Stavsetra, F.S.Stephens, M.Wiedeking, R.Wyss, F.R.Xu

Multi-quasiparticle states in 256Rf

NUCLEAR REACTIONS 208Pb(50Ti, 2n), E=243 MeV; measured (recoil)(electron)(fission)-coin, (electron)γ-coin, conversion electron spectra, Eγ, Iγ, half-lives. 256Rf; deduced levels, J, π, high-K isomers, configurations. Comparisons with Woods-Saxon potential-energy surface calculations.

doi: 10.1103/PhysRevC.79.031303
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2009JE02      Phys.Rev. C 80, 034324 (2009)

H.B.Jeppesen, R.M.Clark, K.E.Gregorich, A.V.Afanasjev, M.N.Ali, J.M.Allmond, C.W.Beausang, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, I.Y.Lee, A.O.Macchiavelli, S.L.Nelson, H.Nitsche, L.Stavsetra, F.S.Stephens, M.Wiedeking

High-K multi-quasiparticle states and rotational bands in 255103Lr

NUCLEAR REACTIONS 209Bi(48Ca, 2n), E=222 MeV; measured Eγ, Iγ, γγ, half-lives. 255Lr; deduced levels, J, π, bands, high-K 3qp isomers and configurations. Comparison with microscopic cranked relativistic Hartree-Bogoliubov (CRHB) calculations.

doi: 10.1103/PhysRevC.80.034324
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2009LE11      Phys.Rev. C 79, 044609 (2009)

S.R.Lesher, J.T.Burke, L.A.Bernstein, H.Ai, C.W.Beausang, D.L.Bleuel, R.M.Clark, F.S.Dietrich, J.E.Escher, P.Fallon, J.Gibelin, B.L.Goldblum, I.Y.Lee, A.O.Macchiavelli, M.A.McMahan, K.J.Moody, E.B.Norman, L.Phair, E.Rodriguez-Vieitez, N.D.Scielzo, M.Wiedeking

Surrogate ratio method in the actinide region using the (α, α'f) reaction

NUCLEAR REACTIONS 234,236U(α, α'f), E=55 MeV; measured fission spectra, α(fission)-coin, in-plane and out-of-plane fission ratios; deduced direct-reaction-induced fission probability ratio. 233,235U(n, f); compared cross sections. Comparison between fission probability ratio and ratio of cross sections. Surrogate ratio method (SRM). Application of SRM as a method of calculating unknown cross sections.

doi: 10.1103/PhysRevC.79.044609
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2009LU04      Nucl.Phys. A818, 121 (2009)

Y.X.Luo, J.H.Hamilton, J.O.Rasmussen, A.V.Ramayya, C.Goodin, S.J.Zhu, J.K.Hwang, K.Li, D.Fong, I.Stefanescu, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

New level schemes and octupole correlations of light neutron-rich lanthanum isotopes 143, 144La

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin and fission yield ratios of 103,104,105Nb, 143,144La using Gammasphere. 143,144La deduced levels, J, π, band configurations, branching ratios, B(E1)/B(E2) ratios. Cranked-shell model calculations.

doi: 10.1016/j.nuclphysa.2008.12.004
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2009LU11      Nucl.Phys. A825, 1 (2009)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, C.Goodin, S.J.Zhu, J.K.Hwang, K.Li, D.Fong, I.Stefanescu, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

The first observation of a deformed Kπ = 1+ ground-state band in 100Nb and the high-spin level scheme of its 4n fission partner 148La

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 100Nb, 148La; deduced ICCs, high-spin levels, J, π, rotational bands, multipolarities, shape coexistence and configurations.

doi: 10.1016/j.nuclphysa.2009.04.006
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2009LU18      Int.J.Mod.Phys. E18, 1697 (2009)

Y.X.Luo, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, C.Goodin, K.J.Li, X.L.Che, J.K.Hwang, I.Y.Lee, Z.Jiang, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, S.Frauendorf, V.Dimitrov, J.-Y.Zhang, J.D.Cole, N.J.Stone, J.O.Rasmussen

Odd-parity bands of 108, 110, 112Ru

RADIOACTIVITY 252Cf(SF); 108,110,112Ru; measured Eγ, Iγ, γγγ-coin.; deduced level schemes, mixing ratios, bands, J, π, angular correlations, level energies, B(E1)/B(E2), chiral doubling. Comparison with other chiral doubling candidates.

doi: 10.1142/S0218301309013646
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2009PA17      Phys.Rev. C 79, 044324 (2009)

E.S.Paul, S.V.Rigby, M.A.Riley, J.Simpson, D.E.Appelbe, D.B.Campbell, P.T.W.Choy, R.M.Clark, M.Cromaz, A.O.Evans, P.Fallon, A.Gorgen, D.T.Joss, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, A.Pipidis, D.Ward, I.Ragnarsson

Loss of collectivity in the transitional 156Er nucleus at high spin

NUCLEAR REACTIONS 114Cd(48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin, angular distributions. 156Er; deduced levels, J, π, angular distribution coefficients, bands, multipolarities, B(M1), B(M1)/B(E2), configurations, alignments as a function of rotational frequency. Nilsson-Strutinsky calculations. Potential energy surface calculations. 152Gd, 154Dy, 156Er, 158Yb, 160Hf; level and configuration systematics.

doi: 10.1103/PhysRevC.79.044324
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2009RI05      Acta Phys.Pol. B40, 513 (2009)

M.A.Riley, A.Aguilar, A.O.Evans, D.J.Hartley, K.Lagergren, J.Ollier, E.S.Paul, A.Pipidis, J.Simpson, C.Teal, P.J.Twin, X.Wang, D.E.Appelbe, D.B.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, I.G.Darby, P.Fallon, U.Garg, R.V.F.Janssens, D.T.Joss, F.G.Kondev, T.Lauritsen, I.Y.Lee, C.J.Lister, A.O.Macchiavelli, P.J.Nolan, M.Petri, S.V.Rigby, J.Thompson, C.Unsworth, D.Ward, S.Zhu, I.Ragnarsson

Strongly Deformed Nuclear Shapes at Ultra-High Spin and Shape Coexistence in ∼ 90 Nuclei


2009WA10      Phys.Lett. B 675, 420 (2009)

J.-G.Wang, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, K.Li, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.-B.Ding, Q.Xu, L.Gu, E.-Y.Yeoh, Z.-G.Xiao, W.C.Ma

Identification of one-phonon and two-phonon γ-vibrational bands in odd-Z 103Nb nucleus

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 103Nb; deduced high-spin levels, J, π, vibrational band structure.

doi: 10.1016/j.physletb.2009.04.057
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2009WA31      Chin.Phys.C 33, Supplement 1, 158 (2009)

J.-G.Wang, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, J.O.Rasmussen, Y.X.Luo, K.Li, I.Y.Lee, H.-B.Ding, Q.Xu, L.Gu, Y.-Y.Yang

Observation of a new rotational band in 104Nb nucleus

RADIOACTIVITY 252Cf(SF); 104Nb; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, level scheme, J, π, rotational bands. Comparison with experimental data.

doi: 10.1088/1674-1137/33/S1/050
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2008AG04      Phys.Rev. C 77, 021302 (2008)

A.Aguilar, D.B.Campbell, K.Chandler, A.Pipidis, M.A.Riley, C.Teal, J.Simpson, D.J.Hartley, F.G.Kondev, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, A.O.Macchiavelli, I.Ragnarsson

New shape minimum in 160Yb: Evidence for a triaxial, strongly deformed band

NUCLEAR REACTIONS 120Sn(44Ca, 4n), E=210 MeV; measured Eγ, Iγ, γγ-coin; calculated potential energy surfaces; 160Yb; deduced excitation energies, configurations, high-spin rotational bands, triaxial strongly-deformed bands. 157,158Er, 161Lu; systematics, comparison with theory.

doi: 10.1103/PhysRevC.77.021302
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2008DI11      Phys.Rev. C 77, 057302 (2008)

H.B.Ding, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, K.Li, S.H.Liu, Y.X.Luo, J.O.Rasmussen, C.T.Goodin, I.Y.Lee, A.V.Daniel, G.M.Ter-Akopian, J.G.Wang, X.L.Che, L.Gu, W.C.Ma

Identification of the ν7/2+ [404] band in neutron-rich 109Ru

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 109Ru; deduced levels, J, π, band configurations. Total Routhian surface calculations.

doi: 10.1103/PhysRevC.77.057302
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2008LI45      Phys.Rev. C 78, 044317 (2008)

K.Li, J.H.Hamilton, A.V.Ramayya, S.J.Zhu, Y.X.Luo, J.K.Hwang, C.Goodin, J.O.Rasmussen, G.M.Ter-Akopian, A.V.Daniel, I.Y.Lee, S.C.Wu, R.Donangelo, J.D.Cole, W.C.Ma, M.A.Stoyer

Identification of new collective bands in neutron-rich 102Zr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, angular correlations. 102Zr; deduced levels, J, π, bands.

doi: 10.1103/PhysRevC.78.044317
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2008LO01      Phys.Rev.Lett. 100, 102501 (2008)

A.Lopez-Martens, T.Dossing, T.L.Khoo, M.Matsuo, B.Herskind, T.Lauritsen, M.P.Carpenter, R.V.F.Janssens, G.Hackman, I-Y.Lee, A.O.Macchiavelli, E.Vigezzi, K.Yoshida

Motional Narrowing and Ergodic Bands in Excited Superdeformed States of 194Hg

RADIOACTIVITY 194Hg; analyzed γ-ray spectra from decay of excited superdeformed states.

doi: 10.1103/PhysRevLett.100.102501
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2008ST17      Phys.Rev. C 78, 034303 (2008)

F.S.Stephens, M.A.Deleplanque, I.Y.Lee, A.O.Macchiavelli, P.Fallon, R.M.Diamond, D.Ward, R.M.Clark, M.Cromaz

Damping, motional narrowing, and chaos in rotational nuclei

NUCLEAR REACTIONS 124Sn(48Ca, 4n), (48Ca, 5n), (48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin, rotational damping and spreading widths, level mixing. Continuum gamma-ray spectroscopy.

doi: 10.1103/PhysRevC.78.034303
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2008WA15      Phys.Rev. C 78, 014313 (2008); Erratum Phys.Rev. C 109, 049902 (2024)

J.G.Wang, E.H.Wang, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, K.Li, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.B.Ding, Q.Xu, L.Gu, S.H.Liu, C.T.Goodin, W.C.Ma

Erratum: First identification of a collective band in the odd-odd 104Nb nucleus [Phys. Rev. C 78, 014313 (2008)]

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, fission yields of 103,104,105Nb, 143,145,147La. 104Nb; deduced levels, J, π, bands, configurations. 101,102,103Nb, 101,103Zr, 103,105Mo; level systematics.

doi: 10.1103/PhysRevC.78.014313
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14548. Data from this article have been entered in the XUNDL database. For more information, click here.


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Note: The following list of authors and aliases matches the search parameter I.Lee: , I.J.LEE, I.S.LEE, I.Y.LEE