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NSR database version of March 21, 2024.

Search: Author = G.J.Lane

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2023GR07      Phys.Lett. B 847, 138268 (2023)

T.J.Gray, A.E.Stuchbery, J.Dobaczewski, A.Blazhev, H.A.Alshammari, L.J.Bignell, J.Bonnard, B.J.Coombes, J.T.H.Dowie, M.S.M.Gerathy, T.Kibedi, G.J.Lane, B.P.McCormick, A.J.Mitchell, C.Nicholls, J.G.Pope, P.-G.Reinhard, N.J.Spinks, Y.Zhong

Shape polarization in the tin isotopes near N = 60 from precision g-factor measurements on short-lived 11/2- isomers

RADIOACTIVITY 109,111Sn(IT) [from 96,98Mo(16O, 3n), E=58 MeV]; measured decay products, frequencies, Eγ, Iγ. 113Sn; deduced γ-ray energies, partial level schemes, isomeric R(t) function, g-factors, hyperfine field strength. Comparison with broken-symmetry density functional theory calculations and available data. The Time Differential Perturbed Angular Distribution (TDPAD) technique. The Heavy Ion Accelerator Facility at the Australian National University.

doi: 10.1016/j.physletb.2023.138268
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2023PA08      Phys.Rev.Lett. 130, 122503 (2023)

T.Palazzo, A.J.Mitchell, G.J.Lane, A.E.Stuchbery, B.A.Brown, M.W.Reed, A.Akber, B.J.Coombes, J.T.H.Dowie, T.K.Eriksen, M.S.M.Gerathy, T.Kibedi, T.Tornyi, M.O.de Vries

Direct Measurement of Hexacontatetrapole, E6 γ Decay from 53mFe

RADIOACTIVITY 53Fe(IT) [from 51V(6Li, 4n), E=50 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies and relative intensities, transition multipolarities, B(Eλ), a discrete, hexacontatetrapole (E6) transition. Comparison with shell model calculations performed in the full fp model space. The CAESAR array of Compton-suppressed High-Purity Germanium (HPGe) detector, the Heavy Ion Accelerator Facility at the Australian National University.

doi: 10.1103/PhysRevLett.130.122503
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2022ID01      Phys.Rev.Lett. 128, 252501 (2022)

E.Ideguchi, T.Kibedi, J.T.H.Dowie, T.H.Hoang, M.Kumar Raju, N.Aoi, A.J.Mitchell, A.E.Stuchbery, N.Shimizu, Y.Utsuno, A.Akber, L.J.Bignell, B.J.Coombes, T.K.Eriksen, T.J.Gray, G.J.Lane, B.P.McCormick

Electric Monopole Transition from the Superdeformed Band in 40Ca

NUCLEAR REACTIONS 40Ca(p, p'), E<10 MeV; measured reaction products, Eγ, Iγ, X-rays; deduced γ-ray energies, energy levels, partial level scheme, electric monopole (E0) transition strengths, transition rates for 0+ states. Comparison with Large-scale shell-model (LSSM) calculations and systematics. The 14UD Pelletron tandem accelerator of the Heavy Ion Accelerator Facility at the Australian National University.

doi: 10.1103/PhysRevLett.128.252501
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2022MU10      Phys.Rev. C 105, 034331 (2022)

M.Mukai, Y.Hirayama, Y.X.Watanabe, H.Watanabe, H.Koura, S.C.Jeong, H.Miyatake, M.Brunet, S.Ishizawa, F.G.Kondev, G.J.Lane, Yu.A.Litvinov, T.Niwase, M.Oyaizu, Zs.Podolyak, M.Rosenbusch, P.Schury, M.Wada, P.M.Walker

Ground-state β-decay spectroscopy of 187Ta

RADIOACTIVITY 187Ta(β-)[from W(136Xe, X), E=7.2 MeV/nucleon]; measured Eγ, Iγ, βγ-coin; deduced Iβ feedings, T1/2, logft, Iγ/β-decay. 187W; deduced Eγ, multipolarities, total conversion coefficients (BrIcc calculations). Comparison to KTUY+gross theory, FRDM+QRPA and RHB+pn-RQRPAKEK calculations. Isotope Separation System (KISS) at RIKEN, an argon-gas-cell-based laser ion source combined with an on-line isotope separator.

doi: 10.1103/PhysRevC.105.034331
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2022OJ01      Commun. Phys. 5, 213 (2022)

J.Ojala, J.Pakarinen, P.Papadakis, J.Sorri, M.Sandzelius, D.M.Cox, K.Auranen, H.Badran, P.J.Davies, T.Grahn, P.T.Greenlees, J.Henderson, A.Herzan, R.-D.Herzberg, J.Hilton, U.Jakobsson, D.G.Jenkins, D.T.Joss, R.Julin, S.Juutinen, T.Kibedi, J.Konki, G.J.Lane, M.Leino, J.Liimatainen, C.G.McPeake, O.Neuvonen, R.D.Page, E.Parr, J.Partanen, P.Peura, P.Rahkila, J.Revill, P.Ruotsalainen, J.Saren, C.Scholey, S.Stolze, J.Uusitalo, A.Ward, R.Wadsworth

Reassigning the shapes of the 0+ states in the 186Pb nucleus

NUCLEAR REACTIONS 106Pd(83Kr, 3n)186Pb, E=365 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced γ-ray energies and intensities, J, π, partial level scheme, conversion-electron energy spectra, electric monopole transitions, B(E2), transitional quadrupole moments, triple shape coexistence. Sage+ritu+great instrumentation, the recoil-decay tagging technique. The Accelerator Laboratory of the University of Jyvaskyla.

doi: 10.1038/s42005-022-00990-4
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2021GE07      Phys.Lett. B 823, 136738 (2021)

M.S.M.Gerathy, A.J.Mitchell, G.J.Lane, A.E.Stuchbery, A.Akber, H.A.Alshammari, L.J.Bignell, B.J.Coombes, J.T.H.Dowie, T.J.Gray, T.Kibedi, B.P.McCormick, L.J.Mckie, M.S.Rahman, N.J.Spinks, B.P.E.Tee, Y.Y.Zhong, K.Zhu

Emerging collectivity in neutron-hole transitions near doubly magic 208Pb

NUCLEAR REACTIONS 209Bi(6Li, 2nα), (6Li, 4n), E=48 MeV; 204Pb(13C, 4n), E=80 MeV; measured reaction products, Eγ, Iγ. 209Po, 211Rn, 213Ra; deduced γ-ray energies and intensities, T1/2, B(E2), emerging collectivity beyond the shell-model valence space. Comparison with calculations. Direct fast-timing methods.

doi: 10.1016/j.physletb.2021.136738
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2021MI07      Phys.Rev. C 103, 024323 (2021)

A.J.Mitchell, R.Orford, G.J.Lane, C.J.Lister, P.Copp, J.A.Clark, G.Savard, J.M.Allmond, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, P.Chowdhury, D.A.Gorelov, R.V.F.Janssens, F.G.Kondev, U.Patel, D.Seweryniak, M.L.Smith, Y.Y.Zhong, S.Zhu

Ground-state and decay properties of neutron-rich 106Nb

RADIOACTIVITY 106Nb(β-)[from 252Cf(SF), CARIBU radioactive-ion-beam facility at ANL, followed by mass separation and measurement using Multi-Reflection Time-of-Flight (MR-TOF) mass separator and Canadian Penning Trap (CPT)]; measured CPT spectra, Eγ, Iγ, βγγ-coin, half-life of 106Nb decay using five HPGe clover detectors, and a plastic scintillator at the X-Array and SATURN decay-spectroscopy station. 106Mo; deduced levels, J, π, apparent β feedings, range of logft values, configurations. 106Nb; discussed spin, parity and configurations of the ground state. Comparison with earlier experimental results.

ATOMIC MASSES 106Nb; measured cyclotron frequency using the Phase-Imaging Ion-Cyclotron-Resonance (PI-ICR) technique, CPT spectra; deduced mass excess. Comparison with previous measurement, and with AME 2016 evaluation.

doi: 10.1103/PhysRevC.103.024323
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2021MO09      Phys.Rev. C 103, 034318 (2021)

C.-B.Moon, B.Moon, J.Park, G.D.Dracoulis, T.Kibedi, R.A.Bark, A.P.Byrne, P.A.Davidson, G.J.Lane, A.N.Wilson

Various collective states in the 124I nucleus

NUCLEAR REACTIONS 122Sn(7Li, 5n)124I, E=54 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), half-lives of nanosecond isomers by γγ(t) using CAESAR array at the 14UD tandem accelerator of ANU-HIAF. 124I; deduced high-spin levels, J, π, multipolarities, bands, K isomer, configurations, alignments; calculated Routhian surface plots. Comparison with structure of 123Te. Systematics of energies and half-lives of 8- and 7- states in 116,118,120,122,124I, and those of level energies in N=58-78, odd-A I and even-even Te and Xe isotopes.

doi: 10.1103/PhysRevC.103.034318
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2021WA15      Phys.Lett. B 814, 136088 (2021)

H.Watanabe, Y.X.Watanabe, Y.Hirayama, A.N.Andreyev, T.Hashimoto, F.G.Kondev, G.J.Lane, Yu.A.Litvinov, J.J.Liu, H.Miyatake, J.Y.Moon, A.I.Morales, M.Mukai, S.Nishimura, T.Niwase, M.Rosenbusch, P.Schury, Y.Shi, M.Wada, P.M.Walker

Beta decay of the axially asymmetric ground state of 192Re

RADIOACTIVITY 192Re(β-) [from Pt(136Xe, X)192Re, E=10.75 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, level scheme, J, π. Comparison with single-particle structure using the nuclear Skyrme-Hartree-Fock model. KEK Isotope Separation System (KISS) in RIKEN Nishina Center.

doi: 10.1016/j.physletb.2021.136088
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2021WA39      Phys.Rev. C 104, 024330 (2021)

Y.X.Watanabe, P.M.Walker, Y.Hirayama, M.Mukai, H.Watanabe, G.J.Lane, M.Ahmed, M.Brunet, T.Hashimoto, S.Ishizawa, S.Kimura, F.G.Kondev, Yu.A.Litvinov, H.Miyatake, J.Y.Moon, T.Niwase, M.Oyaizu, J.H.Park, Zs.Podolyak, M.Rosenbusch, P.Schury, M.Wada

First direct observation of isomeric decay in neutron-rich odd-odd 186Ta

RADIOACTIVITY 186Ta(β-), 186mTa(IT)[from W(136Xe, X), E=7.2 MeV/nucleon, followed by laser ionization and mass separation at the KEK Isotope Separation System (KISS) of RIBF-RIKEN facility]; measured Eγ, Iγ, (particle)γ-coin, half-lives of decays of 186Ta and neutral 186mTa from γ-decay curves. 186Ta; deduced levels, J, π, E3 multipolarity of the 161-keV isomeric transition from a comparison of measured half-life of the neutral isomer with previous measurements of the ionized isomeric state of 186Ta using the Experimental Storage Ring at GSI Darmstadt, no evidence found for the β decay mode of the 186Ta isomer.

doi: 10.1103/PhysRevC.104.024330
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2021WA49      Phys.Lett. B 823, 136766 (2021)

H.Watanabe, C.X.Yuan, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, H.K.Wang, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

Impact of shell evolution on Gamow-Teller β decay from a high-spin long-lived isomer in 127Ag

RADIOACTIVITY 127Cd(EC), 127Ag(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, γ-γ-coin.; deduced γ -ray energies and intensities, J, π, B(GT), isomeric T1/2. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2021.136766
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2020CA11      Phys.Rev. C 101, 054314 (2020)

R.J.Carroll, P.M.Walker, G.J.Lane, M.W.Reed, A.Akber, H.M.Albers, J.J.Carroll, D.M.Cullen, A.C.Dai, C.Fahlander, M.S.M.Gerathy, S.S.Hota, G.Lotay, T.Kibedi, V.Margerin, A.J.Mitchell, N.Palalani, T.Palazzo, Z.Patel, R.Shearman, A.E.Stuchbery, F.R.Xu

γ-ray spectroscopy of a four-quasiparticle isomer band in 174Re

NUCLEAR REACTIONS 160Dy(19F, 5n), E=107 MeV pulsed beam from the 14-UD Pelletron at the Australian National University]; measured prompt and delayed Eγ, Iγ, γγ-coin, half-lives of isomers by γ(t) and γγ(t) using the CAESAR HPGe detector array. 174Re; deduced levels, J, π, bands, γ-branching ratios, four-quasiparticle Kπ=(14-) isomer, Nilsson configurations, gK, Weisskopf hindrances and reduced hindrances for transitions from the (14-) isomer and the (8-) bandhead; calculated potential energy surfaces. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.101.054314
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2020DO10      Phys.Lett. B 811, 135855 (2020)

J.T.H.Dowie, T.Kibedi, D.G.Jenkins, A.E.Stuchbery, A.Akber, H.A.Alshammari, N.Aoi, A.Avaa, L.J.Bignell, M.V.Chisapi, B.J.Coombes, T.K.Eriksen, M.S.M.Gerathy, T.J.Gray, T.H.Hoang, E.Ideguchi, P.Jones, M.Kumar Raju, G.J.Lane, B.P.McCormick, L.J.McKie, A.J.Mitchell, N.J.Spinks, B.P.E.Tee

Evidence for shape coexistence and superdeformation in 24Mg

NUCLEAR REACTIONS 24Mg(p, p'), E=8 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced level energies, J, π, level lifetimes, E0 strength. Comparison with shell model calculations using NuShellX and the USDA interaction in the sd model space.

doi: 10.1016/j.physletb.2020.135855
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2020ER03      Phys.Rev. C 102, 024320 (2020)

T.K.Eriksen, T.Kibedi, M.W.Reed, A.E.Stuchbery, K.J.Cook, A.Akber, B.Alshahrani, A.A.Avaa, K.Banerjee, A.C.Berriman, L.T.Bezzina, L.Bignell, J.Buete, I.P.Carter, B.J.Coombes, J.T.H.Dowie, M.Dasgupta, L.J.Evitts, A.B.Garnsworthy, M.S.M.Gerathy, T.J.Gray, D.J.Hinde, T.H.Hoang, S.S.Hota, E.Ideguchi, P.Jones, G.J.Lane, B.P.McCormick, A.J.Mitchell, N.Palalani, T.Palazzo, M.Ripper, E.C.Simpson, J.Smallcombe, B.M.A.Swinton-Bland, T.Tanaka, T.G.Tornyi, M.O.de Vries

Improved precision on the experimental E0 decay branching ratio of the Hoyle state

NUCLEAR REACTIONS 12C(p, p'), E=10.5 MeV; measured electron-positron pairs for E0 transition from the first excited 0+ Hoyle state, and for E2 transition from the first 2+ state, Eγ, (ce)(ce)- and (ce)γ-coin, γ(θ), E(p), I(p) using the superconducting solenoid Super-e pair spectrometer and Si(Li) detector array for electrons and positrons, HPGe detector for γ radiation, and ANU BALiN double sided silicon strip detector array for scattered protons at the 14 UD pelletron tandem accelerator of Australian National University; deduced E0 branching ratio ΓE0π/Γ, reduction in radiative width. Comparison with previous experimental measurements; calculated 3α reaction rate within the temperature range of helium burning red giant stars using the NACRE library value. Possible impact on astrophysical calculations.

doi: 10.1103/PhysRevC.102.024320
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2020GE08      Phys.Rev. C 102, 044319 (2020)

M.S.M.Gerathy, G.J.Lane, A.E.Stuchbery, G.D.Dracoulis, T.Kibedi, A.Akber, L.J.Bignell, B.J.Coombes, J.T.H.Dowie, T.J.Gray, B.Q.Lee, B.P.McCormick, A.J.Mitchell, N.Palalani

γ-ray and conversion-electron spectroscopy of the high-spin isomer in 145Sm

RADIOACTIVITY 145Sm(IT)[from 124Sn(26Mg, 5n), E=110, 115 MeV, followed by separation of evaporation residues by the SOLITAIRE separator and implantation in a catcher tape at the focal point of the Solenogam array]; measured Eγ, Iγ, E(ce), I(ce), γγ- and γ(ce)-coin, half-lives of isomers by γ(t) and γγ(t) at the at the Australian National University Heavy-Ion Accelerator Facility. 145Sm; deduced high-spin levels, J, π, conversion coefficients, multipolarities, B(E1), B(M1), B(E2), B(M2), B(E3), configurations. Comparisons with shell-model calculations using the KSHELL code. Systematics of energies of the high-spin isomers in N=83, odd-A isotones of 143Nd, 145Sm, 147Gd, 149Dy and 151Er.

NUCLEAR STRUCTURE 145Sm; calculated high-spin levels, J, π, amplitudes of major configurations using shell model and KSHELL code. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.044319
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2020GR05      Phys.Rev. C 101, 054302 (2020)

T.J.Gray, A.E.Stuchbery, B.J.Coombes, J.T.H.Dowie, M.S.M.Gerathy, T.Kibedi, G.J.Lane, B.P.McCormick, A.J.Mitchell, M.W.Reed

Hyperfine fields at 66Ga, 67, 69Ge implanted into iron and gadolinium hosts at 6 K, and applications to g-factor measurements

NUCLEAR REACTIONS 56Fe(12C, pn)66Ga, E=28 MeV; 54,56Fe(16O, 2pn)67Ge/69Ge, E=60 MeV; measured Eγ, and Iγ of recoil 66Ga, 67,69Ge nuclei implanted in Fe and Gd foils using HPGe and LaBr3 detectors for γ detection at the Heavy Ion Accelerator Facility of the Australian National University.

NUCLEAR MOMENTS 66mGa, 67,69Ge; measured hyperfine magnetic fields, and g-factors using time differential perturbed angular distribution (TDPAD) method; deduced configuration for 66mGa. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.101.054302
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2020LI28      Phys.Rev. C 102, 024301 (2020)

J.J.Liu, J.Lee, H.Watanabe, S.Nishimura, G.X.Zhang, J.Wu, P.M.Walker, P.H.Regan, P.-A.Soderstrom, H.Kanaoka, Z.Korkulu, P.S.Lee, A.Yagi, A.C.Dai, F.R.Xu, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, C.S.Lee, E.J.Lee, G.Lorusso, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

Isomeric and β-decay spectroscopy of 173, 174Ho

RADIOACTIVITY 173,174Ho(β-)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fission fragments using BigRIPS separator and ZeroDegree spectrometer and implantation in WAS3ABi at RIBF-RIKEN facility]; measured Eγ, Iγ, Eβ, conversion electrons, βγ-, (ce)γ- and γγ-coin, half-lives of 173Ho and 174Ho decays from γ-decay curves, half-life of an isomer in 173Ho using double-sided silicon strip detectors (DSSD) and the EURICA γ-ray spectrometer. 174Er; deduced levels, J, π, β feedings, logft, configurations. 173Ho; deduced level, isomer, J, π. 174Ho; deduced J, π and configuration of ground state. 173,174Ho, 173,174Er; calculated levels, J, π, deformation parameters β2, γ and β4, configurations using configuration-constrained potential energy surface (PES) calculations. Systematics of yrast g.s. bands in N=106 isotones: 172Dy, 174Er, 176Yb, 178Hf, 180W, 182Os. Systematics of experimental logft values in decays of 168Ho, 171,173Er, 174,176Tm, 178Lu. Systematics of Weisskopf hindrance factors in odd-A Ho isotopes: 159,161,163,165,167Ho.

doi: 10.1103/PhysRevC.102.024301
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2020WA29      Phys.Rev.Lett. 125, 192505 (2020)

P.M.Walker, Y.Hirayama, G.J.Lane, H.Watanabe, G.D.Dracoulis, M.Ahmed, M.Brunet, T.Hashimoto, S.Ishizawa, F.G.Kondev, Y.A.Litvinov, H.Miyatake, J.Y.Moon, M.Mukai, T.Niwase, J.H.Park, Z.Podolyak, M.Rosenbusch, P.Schury, M.Wada, X.Y.Watanabe, W.Y.Liang, F.R.Xu

Properties of 187Ta Revealed through Isomeric Decay

RADIOACTIVITY 187Ta(IT) [from W(136Xe, X), E=7.2 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, γ-γ-, β-γ-coin.; deduced level energies, J, π, T1/2. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.125.192505
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2019CH24      Phys.Rev.Lett. 122, 212502 (2019)

Z.Q.Chen, Z.H.Li, H.Hua, H.Watanabe, C.X.Yuan, S.Q.Zhang, G.Lorusso, S.Nishimura, H.Baba, F.Browne, G.Benzoni, K.Y.Chae, F.C.L.Crespi, P.Doornenbal, N.Fukuda, G.Gey, R.Gernhauser, N.Inabe, T.Isobe, D.X.Jiang, A.Jungclaus, H.S.Jung, Y.Jin, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, X.Q.Li, J.L.Lou, G.J.Lane, C.G.Li, D.W.Luo, A.Montaner-Piza, K.Moschner, C.Y.Niu, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Z.Podolyak, T.Sumikama, P.-A.Soderstrom, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, J.Taprogge, H.Takeda, Zs.Vajta, H.K.Wang, J.Wu, A.Wendt, C.G.Wang, H.Y.Wu, X.Wang, C.G.Wu, C.Xu, Z.Y.Xu, A.Yagi, Y.L.Ye, K.Yoshinaga

Proton Shell Evolution below 132Sn : First Measurement of Low-Lying β-Emitting Isomers in 123, 125Ag

RADIOACTIVITY 123,125Pd(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell-model calculations.

doi: 10.1103/PhysRevLett.122.212502
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2019EV01      Phys.Rev. C 99, 024306 (2019)

L.J.Evitts, A.B.Garnsworthy, T.Kibedi, J.Smallcombe, M.W.Reed, A.E.Stuchbery, G.J.Lane, T.K.Eriksen, A.Akber, B.Alshahrani, M.de Vries, M.S.M.Gerathy, J.D.Holt, B.Q.Lee, B.P.McCormick, A.J.Mitchell, M.Moukaddam, S.Mukhopadhyay, N.Palalani, T.Palazzo, E.E.Peters, A.P.D.Ramirez, T.Tornyi, S.W.Yates

E0 transition strength in stable Ni isotopes

NUCLEAR REACTIONS 58,60,62Ni(p, p'), E=4.7-9.2 MeV; measured Eγ, Iγ, γ(θ), conversion electrons using the CAESAR array for γ detection and Super-e spectrometer for electron detection at ANU-Canberra. 58,60,62Ni(n, n'), E=2.42, 2.90 MeV; measured Eγ, Iγ, level half-lives by DSAM at the University of Kentucky Accelerator Laboratory. 58,60,62Ni; deduced levels, J, π, K-conversion coefficients, E2/M1 multipole mixing ratios and E0 admixtures in 2+ to 2+ transitions, 0+ to 0+ E0 transitions, electric monopole (E0) transition strengths, B(M1), B(E2). Comparison with evaluated data in Nuclear Data Sheets. Systematics of 2+ to 2+ and 0+ to 0+ monopole transition strengths ρ2(E0) in even-even nuclei with A<250.

doi: 10.1103/PhysRevC.99.024306
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2019GA29      Phys.Rev. C 100, 044309 (2019)

E.R.Gamba, A.M.Bruce, S.Lalkovski, M.Rudigier, S.Bottoni, M.P.Carpenter, S.Zhu, J.T.Anderson, A.D.Ayangeakaa, T.A.Berry, I.Burrows, M.Carmona-Gallardo, R.J.Carroll, P.Copp, D.M.Cullen, T.Daniel, G.Fernandez-Martinez, J.P.Greene, L.A.Gurgi, D.J.Hartley, R.Ilieva, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, C.R.Nita, Zs.Podolyak, V.Pucknell, M.Reed, P.H.Regan, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, E.A.Stefanova, V.Vedia, O.Yordanov

Fast-timing measurements in the ground-state band of 114Pd

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, level half-lives by fast-timing γγ(t) technique using Gammasphere array with 51 HPGe detectors, and FATIMA array with 25 LaBr3(Ce) detectors at the Argonne National Laboratory. 114Pd; deduced levels, J, π, half-lives for the first 2+, 4+ and 6+ states, B(E2), transition quadrupole moments, β2. Comparison of experimental B(E2) values with those predicted by the vibrator, rigid axial rotor, Wilets-Jean and Davydov-Filippov models. Systematics of B(E2) values for the first 2+ state in Z=44-48, N=56-74 even-even nuclei.

doi: 10.1103/PhysRevC.100.044309
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2019MC05      Phys.Rev. C 100, 044317 (2019)

B.P.McCormick, A.E.Stuchbery, B.A.Brown, G.Georgiev, B.J.Coombes, T.J.Gray, M.S.M.Gerathy, G.J.Lane, T.Kibedi, A.J.Mitchell, M.W.Reed, A.Akber, L.J.Bignell, J.T.H.Dowie, T.K.Eriksen, S.Hota, N.Palalani, T.Tornyi

First-excited state g factors in the stable, even Ge and Se isotopes

NUCLEAR MOMENTS 70,72,74,76Ge, 74,76,78,80,82Se; measured Eγ, scattered carbon particles, (particle)γ-coin, angular correlations, transient-field precession angles, relative g factors of the first 2+ states using transient field (TF) method in inverse kinematics with the Rutgers parameterization, and ion beams of Ge and Se isotopes from the Australian National University 14UD Pelletron accelerator incident on a multilayer target of C layer, an iron or gadolinium foil, and a copper backing; deduced g factors for the Se and Ge isotopes from a global fit to the present data, together with previous g-factor ratios. Comparison with shell-model calculations using JUN45 and jj44b interactions.

doi: 10.1103/PhysRevC.100.044317
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2019MO28      Phys.Rev. C 100, 024319 (2019), Erratum Phys.Rev. C 106, 029901 (2022)

B.Moon, C.-B.Moon, G.D.Dracoulis, R.A.Bark, A.P.Byrne, P.A.Davidson, G.J.Lane, T.Kibedi, A.N.Wilson, C.Yuan

Proton-neutron multiplet states and isomers in the odd-odd nucleus 122I

NUCLEAR REACTIONS 120Sn(7Li, 5n), E=58 MeV chopped beams from the 14UD tandem heavy-ion accelerator at the Australian National University; measured in-beam and out-of-beam Eγ, Iγ, γγ-coin, γγ(θ)(DCO), half-lives of isomers by γ(t) and γγ(t) methods using CAESAR array with six Compton-suppressed HPGe detectors and two low-energy photon (LEP) detectors. 122I; deduced high-spin levels, isomers, J, π, multipolarities, bands, configurations; calculated quasiparticle energy diagrams as a function of quadrupole deformation parameter for neutrons and protons, Nilsson trajectories, total Routhian surface (TRS) energies, and total energy surfaces for 20- and 21- states by six quasiparticle alignments. Comparison with spherical shell model and deformed shell-model calculations. Comparison of angular frequency vs angular momentum plots for 122I and 124Cs for πh11/2νg7/2 configuration. Systematics of energies of 12+ and 14+ levels from πh11/2νh11/2 configuration in 116,118,120,122,124,126,128I, alignment plots in 118,120,122I, ground band states in 116,118Sn and high-spin states in 122I, excitation energies in the form of a liquid drop energy as a function of spin for 120,122I, and 152,154Ho.

doi: 10.1103/PhysRevC.100.024319
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2019WA14      Phys.Lett. B 792, 263 (2019)

H.Watanabe, H.K.Wang, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, Y.Sun, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

New isomers in 125Pd79 and 127Pd81: Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N=82 shell closure

RADIOACTIVITY 125,127Pd(IT) [from Be(238U, X)125Pd/127Pd, E=345 MeV/nucleon;] ; measured decay products, Eγ, Iγ; deduced γ-ray energies, intensities, T1/2. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2019.03.053
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2019ZH49      Phys.Lett. B 799, 135036 (2019)

G.X.Zhang, H.Watanabe, G.D.Dracoulis, F.G.Kondev, G.J.Lane, P.H.Regan, P.-A.Soderstrom, P.M.Walker, K.Yoshida, H.Kanaoka, Z.Korkulu, P.S.Lee, J.J.Liu, S.Nishimura, J.Wu, A.Yagi, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, M.P.Carpenter, R.J.Carroll, K.Y.Chae, C.J.Chiara, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, T.Lauritsen, C.S.Lee, E.J.Lee, C.J.Lister, G.Lorusso, G.Lotay, E.A.McCutchan, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, D.Seweryniak, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu, S.Zhu

Interplay of quasiparticle and vibrational excitations: First observation of isomeric states in 168Dy and 169Dy

RADIOACTIVITY 168,169Dy(β-) [from be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, X-rays; deduced level energies, J, π, B(E2), isomer T1/2. Comparison with deformed QRPA and multi-quasiparticle calculations.

doi: 10.1016/j.physletb.2019.135036
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2018BR15      Phys.Rev. C 98, 024324 (2018)

R.Broda, L.W.Iskra, R.V.F.Janssens, B.A.Brown, B.Fornal, J.Wrzesinski, N.Cieplicka-Orynczak, M.P.Carpenter, C.J.Chiara, C.R.Hoffman, F.G.Kondev, G.J.Lane, T.Lauritsen, Zs.Podolyak, D.Seweryniak, W.B.Walters, S.Zhu

Two-neutron and core-excited states in 210Pb: Tracing E collectivity and evidence for a new β-decaying isomer in 210Tl

NUCLEAR REACTIONS 208Pb(208Pb, X)210Pb, E=1440 MeV; 208Pb(48Ca, X)210Pb, 208Pb(76Ge, X)210Pb, 208Pb(82Se, X)210Pb, 238U(48Ca, X)210Pb, 238U(208Pb, X)210Pb, E=15-25% above the respective Coulomb barriers; measured Eγ, Iγ, delayed γ spectra, γγ-coin, γ(θ), half-lives of isomers and levels by γγ(t), ratio of observed production yields of anticipated 11+ β--decaying isomer in 210Tl and the 8+ isomer in 210Pb using Gammasphere array at ATLAS-ANL facility. 210Pb; deduced high-spin levels, isomers, J, π, conversion coefficients, multipolarities, configurations, B(E2), B(E3). 210Tl; deduced possible 11+ β- decaying isomer. Comparison with large-scale shell model calculations.

NUCLEAR STRUCTURE 210Pb, 210Tl; calculated levels, J, π by large-scale shell model calculations, and compared with experimental data.

doi: 10.1103/PhysRevC.98.024324
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2018CH13      Nature(London) 554, 7691 (2018)

C.J.Chiara, J.J.Carroll, M.P.Carpenter, J.P.Greene, D.J.Hartley, R.V.F.Janssens, G.J.Lane, J.C.Marsh, D.A.Matters, M.Polasik, J.Rzadkiewicz, D.Seweryniak, S.Zhu, S.Bottoni, A.B.Hayes, S.A.Karamian

Isomer depletion as experimental evidence of nuclear excitation by electron capture

NUCLEAR REACTIONS 7Li(90Zr, 3np), E=840 MeV; measured Eγ, Iγ, γγγ-coin using Gammasphere array at ATLAS-ANL. 93Mo; deduced levels, first experimental evidence of process of nuclear excitation by electron capture (NEEC) through the isomer depletion of 2425-keV isomer and excitation of the 2430-keV intermediate level from the 2425-keV isomer, and observation of 2475-268-685-1478 γ cascade in coincidence.

NUCLEAR REACTIONS 90Zr(7Li, 3np), E(cm)=same as above for reverse kinematic reaction; measured Eγ, Iγ, γγ-coin at Australian National Laboratory. 93Mo; deduced levels, non-observation of 2475- and 268-keV γ rays in γγ coincidences in the normal kinematics reaction consistent with NEEC interpretation in the inverse kinematic reaction study at Argonne.

doi: 10.1038/nature25483
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2018EV01      Phys.Lett. B 779, 396 (2018)

L.J.Evitts, A.B.Garnsworthy, T.Kibedi, J.Smallcombe, M.W.Reed, B.A.Brown, A.E.Stuchbery, G.J.Lane, T.K.Eriksen, A.Akber, B.Alshahrani, M.de Vries, M.S.M.Gerathy, J.D.Holt, B.Q.Lee, B.P.McCormick, A.J.Mitchell, M.Moukaddam, S.Mukhopadhyay, N.Palalani, T.Palazzo, E.E.Peters, A.P.D.Ramirez, S.R.Stroberg, T.Tornyi, S.W.Yates

Identification of significant E0 strength in the 2+2 → 2+1 transitions of 58, 60, 62Ni

NUCLEAR REACTIONS 58,60,62Ni(p, p'), E<9.2 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, nuclear and quadrupole moments, B(E2), B(M1). Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2018.01.076
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2018GA23      Acta Phys.Pol. B49, 555 (2018)

E.R.Gamba, A.M.Bruce, M.Rudigier, S.Lalkovski, S.Bottoni, M.P.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.A.Berry, I.Burrows, R.J.Carrol, P.Copp, M.Carmona-Gallardo, D.M.Cullen, T.Daniel, G.Fernandez-Martinez, J.P.Greene, L.A.Gurgi, D.J.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, C.R.Nita, Zs.Podolyak, V.Pucknell, M.Reed, P.H.Regan, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, V.Vedia, E.A.Stefanova, O.Yordanov

Fast-timing Measurements in 100Zr Using LaBr3(Ce) Detectors Coupled with Gammasphere

RADIOACTIVITY 252Cf(SF); measured 100Zr fission fragment 4+ state Eγ, Iγ, T1/2, fission partners fragments using Digital Gammasphere (DGS) acquisition with hybrid detector made of 51 HPGe from Gammasphere and 25 LaBr3(Ce) scintillators (part of UK NuSTAR Collaboration); deduced first excited state T1/2, deformation, quadrupole moment, B(E2), LaBr3(Ce) γ-γ matrix, DGS γ-γ matrix, centroid difference between delayed and anti-delayed time distributions. Results preliminary, the main aim was the feasibility study.

doi: 10.5506/aphyspolb.49.555
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2018MC04      Phys.Lett. B 779, 445 (2018)

B.P.McCormick, A.E.Stuchbery, T.Kibedi, G.J.Lane, M.W.Reed, T.K.Eriksen, S.S.Hota, B.Q.Lee, N.Palalani

Probing the N = 14 subshell closure: g factor of the 26Mg(2+1) state

NUCLEAR REACTIONS Gd(24Mg, 24Mg'), (26Mg, 26Mg'), E=120 MeV; measured reaction products, Eγ, Iγ. 24,26Mg; deduced the first-excited state g-factors using the high-velocity transient-field technique. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2018.02.032
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2018MO16      Phys.Lett. B 782, 602 (2018)

B.Moon, C.-B.Moon, G.D.Dracoulis, R.A.Bark, A.P.Byrne, P.A.Davidson, G.J.Lane, T.Kibedi, A.N.Wilson, C.Yuan, B.Hong

Occurrence of a chiral-like pair band and a six-nucleon noncollective oblate isomer in 120I

NUCLEAR REACTIONS 118Sn(6Li, 4n), E=48 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, a pair of doublet bands and a high-spin isomer T1/2, chiral characteristics, a pure single-particle structure.

doi: 10.1016/j.physletb.2018.06.008
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2018PA04      Phys.Rev. C 97, 014323 (2018)

T.Palazzo, G.J.Lane, A.E.Stuchbery, A.J.Mitchell, A.Akber, M.S.M.Gerathy, S.S.Hota, T.Kibedi, B.Q.Lee, N.Palalani, M.W.Reed

High-spin spectroscopy and shell-model interpretation of the N < 126 radium isotopes 212Ra and 213Ra

NUCLEAR REACTIONS 204Pb(12C, 4n), E=81 MeV; 204Pb(13C, 4n), E=80 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using CAESAR array of nine Compton-suppressed HPGe detectors, and two LEPS Ge detectors for low-energy γ radiation. Pulsed beams from 14UD tandem accelerator of the Heavy Ion Accelerator Facility of the Australian National University. 212,213Ra; deduced high-spin levels, J, π, half-life of a new isomer, total conversion coefficients of low-energy γ rays, multipolarities, configurations, B(M1), B(E2), B(E1), B(M2), B(E3). Comparison with semiempirical shell-model calculations.

doi: 10.1103/PhysRevC.97.014323
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2018SI28      Phys.Rev. C 98, 054307 (2018)

K.Siegl, K.Kolos, N.D.Scielzo, A.Aprahamian, G.Savard, M.T.Burkey, M.P.Carpenter, P.Chowdhury, J.A.Clark, P.Copp, G.J.Lane, C.J.Lister, S.T.Marley, E.A.McCutchan, A.J.Mitchell, J.Rohrer, M.L.Smith, S.Zhu

Β-decay half-lives of 134, 134mSb and their isomeric yield ratio produced by the spontaneous fission of 252Cf

RADIOACTIVITY 134m,134Sb(β-)[from 252Cf(SF), mass separated high-intensity beams]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin, half-lives of decays of 134Sb and 134mSb, and isomeric yield ratios from 252Cf(SF) using the Scintillator And Tape Using Radioactive Nuclei (SATURN) system for β- detection, and X-Array for γ detection at the CARIBU facility of ANL. Systematics of isomeric yield ratios of 128,130,134Sb, 131,133Te, 132,134,136I, 135Xe, 138Cs from 252Cf(SF). Comparison with previous experimental values.

doi: 10.1103/PhysRevC.98.054307
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2017DO01      Phys.Lett. B 766, 334 (2017)

D.T.Doherty, J.M.Allmond, R.V.F.Janssens, W.Korten, S.Zhu, M.Zielinska, D.C.Radford, A.D.Ayangeakaa, B.Bucher, J.C.Batchelder, C.W.Beausang, C.Campbell, M.P.Carpenter, D.Cline, H.L.Crawford, H.M.David, J.P.Delaroche, C.Dickerson, P.Fallon, A.Galindo-Uribarri, F.G.Kondev, J.L.Harker, A.B.Hayes, M.Hendricks, P.Humby, M.Girod, C.J.Gross, M.Klintefjord, K.Kolos, G.J.Lane, T.Lauritsen, J.Libert, A.O.Macchiavelli, P.J.Napiorkowski, E.Padilla-Rodal, R.C.Pardo, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, J.Srebrny, R.Varner, R.Vondrasek, A.Wiens, E.Wilson, J.L.Wood, C.Y.Wu

Triaxiality near the 110Ru ground state from Coulomb excitation

NUCLEAR REACTIONS 208Pb(110Ru, 110Ru'), E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energy spectrum, B(E2) using GOSIA fit of the experimental data, level scheme, J, π, triaxial deformation. Comparison with available data.

doi: 10.1016/j.physletb.2017.01.031
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2017GR19      Phys.Rev. C 96, 054332 (2017)

T.J.Gray, A.E.Stuchbery, M.W.Reed, A.Akber, B.J.Coombes, J.T.H.Dowie, T.K.Eriksen, M.S.M.Gerathy, T.Kibedi, G.J.Lane, A.J.Mitchell, T.Palazzo, T.Tornyi

Perturbed angular distributions with LaBr3 detectors: The g factor of the first 10+ state in 110Cd reexamined

NUCLEAR REACTIONS 98Mo(12C, 3n)107Cd, E=48 MeV; measured Eγ, Iγ, γ(θ), half-life of 11/2- isomer in 107Cd, recoil-implanted into a gadolinium host, static hyperfine field strength of Cd recoil implanted into gadolinium using time differential perturbed angular distribution at the ANU 14UD Pelletron accelerator facility.

NUCLEAR MOMENTS 107Cd; measured static hyperfine field strength of Cd recoil implanted into gadolinium using time differential perturbed angular distribution. 110Cd; analyzed and re-evaluated g factor of the yrast 10+ state using newly-determined hyperfine field strength; deduced seniority-two νh11/2 configuration.

doi: 10.1103/PhysRevC.96.054332
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2017GU08      Acta Phys.Pol. B48, 601 (2017)

L.A.Gurgi, P.H.Regan, P.-A.Soderstrom, H.Watanabe, P.M.Walker, Zs.Podolyak, S.Nishimura, T.A.Berry, P.Doornenbal, G.Lorusso, T.Isobe, H.Baba, Z.Y.Xu, H.Sakurai, T.Sumikama, W.N.Catford, A.M.Bruce, F.Browne, G.J.Lane, F.G.Kondev, A.Odahara, J.Wu, H.L.Liu, F.R.Xu, Z.Korkulu, P.Lee, J.J.Liu, V.H.Phong, A.Yagi, G.X.Zhang, T.Alharbi, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, H.Kanaoka, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, E.J.Lee, C.S.Lee, G.Lotay, C.B.Moon, I.Nishizuka, C.R.Nita, Z.Patel, O.J.Roberts, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, S.Kanaya, J.J.Valiente-Dobon

Isomer Spectroscopy of Neutron-rich 165, 167Tb

NUCLEAR REACTIONS 9Be(238U, f), E=345 MeV/nucleon; measured fission products β-delayed discrete Eγ, Iγ, X-rays, γγ-coin, Xγ-coin using HPGe. 165,167Tb; deduced neutron-rich deformed nuclei γ-ray spectra, levels, J, π, isomeric states interpreted as hindered E1 decay from single quasi-proton Nilsson configuration to rotational states built on single quasi-proton gs, levels populated in isomeric decays.

doi: 10.5506/APhysPolB.48.601
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2017GU24      Radiat.Phys.Chem. 140, 493 (2017)

L.A.Gurgi, P.H.Regan, P.-A.Soderstrom, H.Watanabe, P.M.Walker, Zs.Podolyak, S.Nishimura, T.A.Berry, P.Doornenbal, G.Lorusso, T.Isobe, H.Baba, Z.Y.Xu, H.Sakurai, T.Sumikama, W.N.Catford, A.M.Bruce, F.Browne, G.J.Lane, F.G.Kondev, A.Odahara, J.Wu, H.L.Liu, F.R.Xu, Z.Korkulu, P.Lee, J.J.Liu, V.H.Phong, A.Yag, G.X.Zhang, T.Alharbi, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, H.Kanaoka, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, E.J.Lee, C.S.Lee, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, Z.Patel, O.J.Roberts, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, S.Yoshida, J.J.Valiente-Dobon

Isomer spectroscopy of neutron-rich 168Tb103

NUCLEAR REACTIONS 9Be(238U, X)168Tb, E=350 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, isomeric state T1/2. Comparison with blocked BCS pairing Nilsson calculations for a well-deformed prolate shape, available data.

doi: 10.1016/j.radphyschem.2016.12.011
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2017JU02      Phys.Lett. B 772, 483 (2017)

A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

Observation of a γ decaying millisecond isomeric state in 128Cd80

NUCLEAR REACTIONS 9Be(238U, X)128Cd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ. 129Cd, 129In; deduced γ-ray energies, J, π, level T1/2, B(E3). Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2017.07.006
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2017MA39      Phys.Rev. C 96, 014318 (2017)

D.A.Matters, F.G.Kondev, N.Aoi, Y.Ayyad, A.P.Byrne, M.P.Carpenter, J.J.Carroll, C.J.Chiara, P.M.Davidson, G.D.Dracoulis, Y.D.Fang, C.R.Hoffman, R.O.Hughes, E.Ideguchi, R.V.F.Janssens, S.Kanaya, B.P.Kay, T.Kibedi, G.J.Lane, T.Lauritsen, J.W.McClory, P.Nieminen, S.Noji, A.Odahara, H.J.Ong, A.E.Stuchbery, D.T.Tran, H.Watanabe, A.N.Wilson, Y.Yamamoto, S.Zhu

In-beam γ-ray spectroscopy studies of medium-spin states in the odd-odd nucleus 186Re

NUCLEAR REACTIONS 186W(d, 2n)186Re, E=12.5, 14.5 MeV; measured Eγ, Iγ, γγ-coin using Clover Array Gamma-Ray spectrometer for Advanced research (CAGRA) at RCNP, Osaka University, and CAESAR spectrometer at the 14UD Pelletron accelerator of the Australian National University. 186Re; deduced high-spin levels, J, π, K-shell conversion coefficients, multipolarities, bands, configurations, branching ratios and gK-gR values. Comparison with multi-quasiparticle blocking calculations.

doi: 10.1103/PhysRevC.96.014318
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2017RU02      Acta Phys.Pol. B48, 351 (2017)

M.Rudigier, S.Lalkovski, E.R.Gamba, A.M.Bruce, Zs.Podolyak, P.H.Regan, M.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.Berry, S.Bottoni, I.Burrows, R.Carroll, P.Copp, D.Cullen, T.Daniel, L.Fraile, M.Carmona-Gallardo, A.Grant, J.P.Greene, L.A.Guegi, D.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, G.Fernandez-Martinez, V.Pucknell, M.Reed, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, E.Stefanova, V.Vedia, O.Yordanov

Fast Timing Measurement Using an LaBr3(Ce) Scintillator Detector Array Coupled with Gammasphere

doi: 10.5506/APhysPolB.48.351
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2017WO02      Phys.Rev. C 95, 054308 (2017)

R.T.Wood, P.M.Walker, G.J.Lane, R.J.Carroll, D.M.Cullen, G.D.Dracoulis, S.S.Hota, T.Kibedi, N.Palalani, Zs.Podolyak, M.W.Reed, K.Schiffl, A.M.Wright

Three-quasiparticle isomer in 173Ta and the excitation energy dependence of K-forbidden transition rates

NUCLEAR REACTIONS 168Er(10B, 5n), E=68 MeV beam from ANU 14UD tandem accelerator; measured Eγ, Iγ, γγ-coin, half-lives of isomers by γγ(t) using CAESAR array, and pulsed-beam γ-ray spectroscopy techniques. 173Ta; deduced high-spin levels, J, π, bands, 3-qp isomers, reduced hindrance fν of K-forbidden transitions, configurations. Systematics of reduced hindrances for transitions from isomers in 173,175,177,181,185Ta, 179,181,183W and 181Os.

doi: 10.1103/PhysRevC.95.054308
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2017WU04      Phys.Rev.Lett. 118, 072701 (2017)

J.Wu, S.Nishimura, G.Lorusso, P.Moller, E.Ideguchi, P.-H.Regan, G.S.Simpson, P.-A.Soderstrom, P.M.Walker, H.Watanabe, Z.Y.Xu, H.Baba, F.Browne, R.Daido, P.Doornenbal, Y.F.Fang, G.Gey, T.Isobe, P.S.Lee, J.J.Liu, Z.Li, Z.Korkulu, Z.Patel, V.Phong, S.Rice, H.Sakurai, L.Sinclair, T.Sumikama, M.Tanaka, A.Yagi, Y.L.Ye, R.Yokoyama, G.X.Zhang, T.Alharbi, N.Aoi, F.L.Bello Garrote, G.Benzoni, A.M.Bruce, R.J.Carroll, K.Y.Chae, Z.Dombradi, A.Estrade, A.Gottardo, C.J.Griffin, H.Kanaoka, I.Kojouharov, F.G.Kondev, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, E.J.Lee, T.Lokotko, G.Lotay, C.-B.Moon, H.Nishibata, I.Nishizuka, C.R.Nita, A.Odahara, Zs.Podolyak, O.J.Roberts, H.Schaffner, C.Shand, J.Taprogge, S.Terashima, Z.Vajta, S.Yoshida

94 β-Decay Half-Lives of Neutron-Rich 55Cs to 67Ho: Experimental Feedback and Evaluation of the r-Process Rare-Earth Peak Formation

RADIOACTIVITY 144,145,146,147,148,149,150,151Cs, 146,147,148,149,150,151,152,153,154Ba, 148,149,150,151,152,153,154,155,156La, 150,151,152,153,154,155,156,157,158Ce, 153,154,155,156,157,158,159,160Pr, 156,157,158,159,160,161,162Nd, 159,160,161,162,163Pm, 160,161,162,163,164,165,166Sm, 161,162,163,164,165,166,167,168Eu, 165,166,167,168,169,170Gd, 166,167,168,169,170,171,172Tb, 169,170,171,172,172m,173Dy, 172,173,174,175Ho, 174mEr(β-)[from Be(238U, X), E=345 MeV/nucleon]; measured and analyzed reaction products using BigRIPS separator and ZeroDegree Spectrometer (ZDS), γ rays, half-lives by (implant)β correlations using WAS3ABi and EURICA detection systems at RIBF-RIKEN facility; deduced Gamow-Teller strength functions, r-process abundance pattern in the solar system. Comparison with previous experimental half-lives, and with three theoretical calculations using FRDM+QRPA, KTUY+GT2, and RHB+pn-RQRPA models. Numerical values of half-lives listed in supplementary file.

doi: 10.1103/PhysRevLett.118.072701
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2016JO01      Phys.Rev. C 93, 024307 (2016)

D.T.Joss, G.D.Dracoulis, E.Higgins, M.Lewis, J.Thomson, G.J.Lane, R.D.Page, J.Simpson, L.Bianco, B.Cederwall, I.G.Darby, P.M.Davidson, S.Eeckhaudt, S.Erturk, B.Fabricius, M.B.Gomez Hornillos, T.Grahn, P.T.Greenlees, B.Hadinia, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, P.Nieminen, M.Nyman, J.Pakarinen, E.S.Paul, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, P.J.Sapple, J.Saren, C.Scholey, J.Sorri, J.Uusitalo

Evolving collective structures in the transitional nuclei 162W and 164W

NUCLEAR REACTIONS 106Cd(60Ni, 2p), (60Ni, 2n2p), E=270 MeV; measured Eγ, Iγ, γγ-, (recoils)γγ-coin, Recoils-α-α-α-γ correlated spectra, γγ(θ)(DCO) using RITU separator, GREAT spectrometer and JUROGAM array at Jyvaskyla accelerator laboratory. 162,164W; deduced high-spin levels, J, π, bands, multipolarity, B(E1), B(E1)/B(E2) ratios, configurations, rotational alignments. Comparison with predictions of the cranked shell model.

doi: 10.1103/PhysRevC.93.024307
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2016JU03      Phys.Rev. C 94, 024303 (2016)

A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

β decay of semi-magic 130Cd: Revision and extension of the level scheme of 130In

RADIOACTIVITY 130Cd(β-)[from 9Be(238U, F), E=345 MeV/nucleon, using BigRIPS separator and ZeroDegree spectrometer (ZDS) at RIBF-RIKEN facility]; Measured Eγ, Iγ, γγ-, βγ-coin, isomer half-life by γγ(t) using WAS3ABi array for β and ion detection, and EURICA array of 12 large-volume HPGe clusters for γ detection. 130In; deduced levels, J, π, β feedings, logft, high-lying core-excited states, configurations. Comparison with previous experimental results, ENSDF evaluation, and shell-model calculations.

doi: 10.1103/PhysRevC.94.024303
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2016MA41      Phys.Rev. C 93, 064309 (2016)

V.Margerin, G.J.Lane, G.D.Dracoulis, N.Palalani, M.L.Smith, A.E.Stuchbery

Spectroscopy and high-spin structure of 210Fr : Isomerism and potential evidence for configuration mixing

NUCLEAR REACTIONS 197Au(18O, 5n), E=97 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), out-of-beam γ spectra, half-lives of isomers by γγ(t) using CAESAR array at ANU accelerator facility. 210Fr; deduced levels, isomers, J, π, total conversion coefficients from intensity balances, configurations, multipolarities, B(E1), B(E2), B(E3), B(M1), B(M2), configuration mixing. Systematics of level structures, B(E1), B(M2), B(E3), and 10- isomers in neighboring Fr, Bi and At isotopes. Comparisons with semiempirical shell-model calculations.

NUCLEAR STRUCTURE 205Pb, 209,210,211,212Fr; calculated levels, J, π, transition probabilities using shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.064309
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2016RE02      Phys.Lett. B 752, 311 (2016)

M.W.Reed, G.J.Lane, G.D.Dracoulis, F.G.Kondev, M.P.Carpenter, P.Chowdhury, S.S.Hota, R.O.Hughes, R.V.F.Janssens, T.Lauritsen, C.J.Lister, N.Palalani, D.Seweryniak, H.Watanabe, S.Zhu, W.G.Jiang, F.R.Xu

Impact of triaxiality on the rotational structure of neutron-rich rhenium isotopes

NUCLEAR REACTIONS 192Os(136Xe, X)187Re, 187Re(136Xe, X)189Re, 186W(136Xe, X)191Re, E=6 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced level scheme, γ-ray energies, J, π, rotational bands, triaxiality. Comparison with particle-triaxial-rotor calculations.

doi: 10.1016/j.physletb.2015.11.056
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2016SO13      Phys.Lett. B 762, 404 (2016)

P.-A.Soderstrom, P.M.Walker, J.Wu, H.L.Liu, P.H.Regan, H.Watanabe, P.Doornenbal, Z.Korkulu, P.Lee, J.J.Liu, G.Lorusso, S.Nishimura, V.H.Phong, T.Sumikama, F.R.Xu, A.Yagi, G.X.Zhang, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.J.Griffin, E.Ideguchi, N.Inabe, T.Isobe, H.Kanaoka, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, E.J.Lee, C.S.Lee, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

K-mixing in the doubly mid-shell nuclide 170Dy and the role of vibrational degeneracy

RADIOACTIVITY 170Tb(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, yrast band, J, π, parent nucleus and daughter nucleus isomeric state T1/2. Comparison with available data.

doi: 10.1016/j.physletb.2016.09.058
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2016TA22      Eur.Phys.J. A 52, 347 (2016), Erratum Eur.Phys.J. A 52, 375 (2016)

J.Taprogge, A.Jungclaus, H.Grawe, I.N.Borzov, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, N.Itaco, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

Proton-hole and core-excited states in the semi-magic nucleus 131In82

RADIOACTIVITY 131Cd(β-)[from 238U on 9Be at 345 MeV/nucleon]; measured Eγ, Iγ using EURICA array (84 Ge crystals around Si detectors), β-decay using WAS3ABi detector (8 DSSD's of 40x60 strips each), βγ-coin, other reaction products; deduced γ spectrum in prompt coincidence with first β decay, γ transitions, relative intensities, 131In level scheme, β feeding intensities (for transitions to excited states in 131In), excitation energies of several core-excited configurations; calculated log ft, β decay strength for GT allowed and first-forbidden β decay branches, excitation energies of core-excited configurations using shell model and QRPA.

doi: 10.1140/epja/i2016-16347-y
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2016WA19      Phys.Lett. B 760, 641 (2016)

H.Watanabe, G.X.Zhang, K.Yoshida, P.M.Walker, J.J.Liu, J.Wu, P.H.Regan, P.-A.Soderstrom, H.Kanaoka, Z.Korkulu, P.S.Lee, S.Nishimura, A.Yagi, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, C.S.Lee, E.J.Lee, G.Lorusso, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

Long-lived K isomer and enhanced γ vibration in the neutron-rich nucleus 172Dy: Collectivity beyond double midshell

RADIOACTIVITY 172Dy(β-), (IT); measured decay products, Eγ, Iγ; deduced energy levels, J, π, T1/2, B(E2). Comparison with the deformed Quasiparticle Random-Phase Approximation based on a Skyrme energy-density functional.

doi: 10.1016/j.physletb.2016.07.057
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2015AK02      Phys.Rev. C 91, 031301 (2015)

A.Akber, M.W.Reed, P.M.Walker, Yu.A.Litvinov, G.J.Lane, T.Kibedi, K.Blaum, F.Bosch, C.Brandau, J.J.Carroll, D.M.Cullen, I.J.Cullen, A.Y.Deo, B.Detwiler, C.Dimopoulou, G.D.Dracoulis, F.Farinon, H.Geissel, E.Haettner, M.Heil, R.S.Kempley, R.Knobel, C.Kozhuharov, J.Kurcewicz, N.Kuzminchuk, S.Litvinov, Z.Liu, R.Mao, C.Nociforo, F.Nolden, W.R.Plass, Zs.Podolyak, A.Prochazka, C.Scheidenberger, D.Shubina, M.Steck, Th.Stohlker, B.Sun, T.P.D.Swan, G.Trees, H.Weick, N.Winckler, M.Winkler, P.J.Woods, T.Yamaguchi

Increased isomeric lifetime of hydrogen-like 192mOs

RADIOACTIVITY 192mOs(IT)[from 9Be(197Au, X), E=478-492 MeV/nucleon]; measured half-life of the highly-charged stored ions using Schottky mass spectrometry in Experimental Storage Ring (ESR) of the isomeric state of 192Os at UNILAC and SIS-18 heavy-ion accelerators of GSI. Discussed increased half-life of the hydrogen-like ions of isomeric state as compared to that of the neutral ions.

doi: 10.1103/PhysRevC.91.031301
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2015LO04      Phys.Rev.Lett. 114, 192501 (2015)

G.Lorusso, S.Nishimura, Z.Y.Xu, A.Jungclaus, Y.Shimizu, G.S.Simpson, P.-A.Soderstrom, H.Watanabe, F.Browne, P.Doornenbal, G.Gey, H.S.Jung, B.Meyer, T.Sumikama, J.Taprogge, Zs.Vajta, J.Wu, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, T.Kajino, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, P.Schury, S.Shibagaki, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, A.Yagi, K.Yoshinaga

β-Decay Half-Lives of 110 Neutron-Rich Nuclei across the N=82 Shell Gap: Implications for the Mechanism and Universality of the Astrophysical r Process

RADIOACTIVITY 134,135,136,137,138,139Sn, 128,129,130,131,132,133,134,135,136,137In, 126,127,128,129,130,131,132,133,134Cd, 124,125,126,127,128,129,130,131,132Ag, 121,122,123,124,125,126,127,128,129Pd, 118,119,120,121,122,123,124,125,126,127Rh, 116,117,118,119,120,121,122,123,124Ru, 112,113,114,115,116,117,118,119,120,121Tc, 109,110,111,112,113,114,115,116,117,118Mo, 107,108,109,110,111,112,113,114,115Nb, 106,107,108,109,110,111,112Zr, 104,105,106,107,108,109Y, 103,104,105,106Sr, 102,103Rb(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced T1/2; Calculated r-process abundances. Comparison with available data.

doi: 10.1103/PhysRevLett.114.192501
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2015SH13      Acta Phys.Pol. B46, 619 (2015)

C.M.Shand, E.Wilson, Zs.Podolyak, H.Grawe, B.A.Brown, B.Fornal, R.V.F.Janssens, M.Bowry, M.Bunce, M.P.Carpenter, R.J.Carroll, C.J.Chiara, N.Cieplicka-Orynczak, A.Y.Deo, G.D.Dracoulis, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, G.Lotay, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, D.Seweryniak, B.Szpak, P.M.Walker, S.Zhu

Structure of 207Pb Populated in 208Pb + 208Pb Deep-inelastic Collisions

NUCLEAR REACTIONS 208Pb(208Pb, X)207Pb, E=1446 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, angular distributions of transitions, multipolarities, J, π. Comparison with shell model calculations.

doi: 10.5506/APhysPolB.46.619
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2015TA13      Phys.Rev. C 91, 054324 (2015)

J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

β decay of 129Cd and excited states in 129In

RADIOACTIVITY 129,129mCd(β-)[from 9Be(238U, F), E=345 MeV/nucleon using BigRIPS at RIBF-RIKEN]; measured Eγ, Iγ, Eβ, γγ-, βγ-coin, half-lives of ground and isomer states using WAS3ABi setup and EURICA array of HPGe detectors at RIKEN. 129In; deduced levels, J, π, energy of β decaying 1/2- isomer, Iβ, logft, B(GT) strengths, configuration. Comparison of level energies, J, π with shell-model calculations.

doi: 10.1103/PhysRevC.91.054324
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2015WI05      Phys.Lett. B 747, 88 (2015)

E.Wilson, Zs.Podolyak, H.Grawe, B.A.Brown, C.J.Chiara, S.Zhu, B.Fornal, R.V.F.Janssens, C.M.Shand, M.Bowry, M.Bunce, M.P.Carpenter, N.Cieplicka-Orynczak, A.Y.Deo, G.D.Dracoulis, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, G.Lotay, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, D.Seweryniak, B.Szpak, P.M.Walker

Core excitations across the neutron shell gap in 207Tl

NUCLEAR REACTIONS 208Pb(208Pb, X)207Tl, E=1446 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π. Comparison with shell-model calculations.

doi: 10.1016/j.physletb.2015.04.055
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2015WR02      Phys.Rev. C 92, 044327 (2015)

J.Wrzesinski, G.J.Lane, K.H.Maier, R.V.F.Janssens, G.D.Dracoulis, R.Broda, A.P.Byrne, M.P.Carpenter, R.M.Clark, M.Cromaz, B.Fornal, T.Lauritsen, A.O.Macchiavelli, M.Rejmund, B.Szpak, K.Vetter, S.Zhu

High-spin yrast structure of 204Hg from the decay of a four-hole, 22+ isomer

NUCLEAR REACTIONS 238U(208Pb, X), E=1360 MeV; 238U(48Ca, X), E=330 MeV; 238U(208Pb, X), E=1450 MeV; measured Eγ, in-beam and off-beam Iγ, γγ-coin, γγ(θ), half-lives of isomers by γγ(t) using Gammasphere array at ATLAS-ANL. 204Hg; deduced high-spin levels, J, π, isomers, internal conversion coefficients from intensity balances, multipolarities, configurations, B(M1), B(E1), B(E2), B(E3). Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.92.044327
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2014TA07      Phys.Rev.Lett. 112, 132501 (2014)

J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, P.Doornenbal, G.Lorusso, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

1p3/2 Proton-Hole State in 132Sn and the Shell Structure Along N= 82

RADIOACTIVITY 132Cd(β-n) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.112.132501
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2014TA29      Phys.Lett. B 738, 223 (2014)

J.Taprogge, A.Jungclaus, H.Grawe, S.Nishimura, Z.Y.Xu, P.Doornenbal, G.Lorusso, E.Nacher, G.S.Simpson, P.-A.Soderstrom, T.Sumikama, H.Baba, F.Browne, N.Fukuda, R.Gernhauser, G.Gey, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, K.Steiger, H.Suzuki, H.Takeda, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, G.Benzoni, S.Bonig, K.Y.Chae, L.Coraggio, A.Covello, J.-M.Daugas, F.Drouet, A.Gadea, A.Gargano, S.Ilieva, F.G.Kondev, G.J.Lane, A.Montaner-Piza, K.Moschner, D.Mucher, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, A.Wendt

Identification of a millisecond isomeric state in 129Cd81 via the detection of internal conversion and Compton electrons

NUCLEAR REACTIONS Be(238U, X)129Cd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced ICC and γ-ray yields, energy levels, J, π, isomeric state T1/2, B(E3). Comparison with shell model calculations.

doi: 10.1016/j.physletb.2014.09.047
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2014WA26      Phys.Rev.Lett. 113, 042502 (2014)

H.Watanabe, G.Lorusso, S.Nishimura, T.Otsuka, K.Ogawa, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, Z.Li, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

Monopole-Driven Shell Evolution below the Doubly Magic Nucleus 132Sn Explored with the Long-Lived Isomer in 126Pd

NUCLEAR REACTIONS Be(238U, X)126Pd, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell model calculations.

RADIOACTIVITY 126Pd(IT), (β-); measured decay products, Eγ, Iγ; deduced energy levels, J, π, T1/2. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.113.042502
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2013DR01      Phys.Rev. C 87, 014326 (2013)

G.D.Dracoulis, G.J.Lane, H.Watanabe, R.O.Hughes, N.Palalani, F.G.Kondev, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, P.Chowdhury, W.Y.Liang, Y.Shi, F.R.Xu

Three-quasiparticle isomers and possible deformation in the transitional nuclide, 195Au

NUCLEAR REACTIONS 192Os(136Xe, X), E AP 6.0 MeV/nucleon; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(t), T1/2 using Gammasphere at ATLAS facility in ANL. 195Au; deduced high-spin levels, isomers, J, π, total conversion coefficients, multipolarity, B(E1), B(M1), B(E2), B(M2), configurations, bands. Calculated potential energy surfaces, 3qp configurations and deformation parameters, residual interactions from semi-empirical shell model. Systematics of level structures in N=116 isotones 192Os, 193Ir, 194Pt, 195Au, 196Hg.

doi: 10.1103/PhysRevC.87.014326
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2013DR05      Phys.Lett. B 720, 330 (2013)

G.D.Dracoulis, G.J.Lane, A.P.Byrne, H.Watanabe, R.O.Hughes, F.G.Kondev, M.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, P.Chowdhury, Y.Shi, F.R.Xu

Isomers and excitation modes in the gamma-soft nucleus 192Os

NUCLEAR REACTIONS 192Os, 186W(136Xe, X)192Os, E=6 MeV/nucleon; measured reaction products, Eγ, Iγ, γ-γ-γ-coin.; deduced high-spin states, J, π, long-lived isomer; Comparison with potential-energy-surfaces calculations.

doi: 10.1016/j.physletb.2013.02.026
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2013HU08      Phys.Rev. C 88, 014311 (2013)

R.O.Hughes, G.J.Lane, G.D.Dracoulis, A.P.Byrne, P.Nieminen, H.Watanabe, M.P.Carpenter, P.Chowdhury, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu

Multiquasiparticle states in the neutron-rich nucleus 174Tm

NUCLEAR REACTIONS 175,176Lu, 174,176Yb(136Xe, X), E=820 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), isomer half-lives by γ(t) and γγ(t) using Gammasphere array at ATLAS-ANL facility. 174Tm; deduced levels, J, K, π, rotational bands, configurations, multipolarity, B(E1), B(M1), B(E2), B(M2), B(E3), hindrance factors for γ transitions, rotational alignments, magnitudes of gK-gR and mixing ratio, two- and four-quasiparticle states, residual n-n interaction. Comparison with multiquasiparticle calculations.

NUCLEAR STRUCTURE 174Tm; calculated levels, J, K, π, configurations. Multiquasiparticle pairing calculations use the Lipkin-Nogami formalism; comparison with experimental data.

doi: 10.1103/PhysRevC.88.014311
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2013SO17      Phys.Rev. C 88, 024301 (2013)

P.-A.Soderstrom, G.Lorusso, H.Watanabe, S.Nishimura, P.Doornenbal, G.Thiamova, F.Browne, G.Gey, H.S.Jung, T.Sumikama, J.Taprogge, Zs.Vajta, J.Wu, Z.Y.Xu, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, A.Yagi, K.Yoshinaga

Shape evolution in 116,118Ru: Triaxiality and transition between the O(6) and U(5) dynamical symmetries

RADIOACTIVITY 116,118Tc(β-)[from Be(238U, X), E=345 MeV/nucleon]; measured Eγ, Iγ, βγ-, γγ-coin using EURICA array and WAS3ABi counting system at RIBF, RIKEN facility. 116,118Ru; deduced levels, J, p, bands, kinematic moments of inertia, energy staggering of quasi-γ bands. Comparison with IBM, algebraic collective model, and cranked shell-model calculations. Systematics of first 2+ and 4+ states in N=62-74 Pd, Ru and Mo nuclei. Discussed O(6) and U(5) symmetries.

NUCLEAR STRUCTURE 116,118Ru; calculated levels, J, π. Interacting boson model, algebraic collective model, and total Routhian surfaces. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.024301
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2013WA24      Phys.Rev.Lett. 111, 152501 (2013)

H.Watanabe, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

Isomers in 128Pd and 126Pd: Evidence for a Robust Shell Closure at the Neutron Magic Number 82 in Exotic Palladium Isotopes

NUCLEAR REACTIONS 9Be(238U, X), E=345 MeV/nucleon; measured Eγ, Iγ, (fragment)γ-coin, Eβ, ce, isomer half-lives using BigRIPS, ZeroDegree spectrometers at RIBF facility in RIKEN. Gamma rays detected with EURICA array of 12 Cluster HPGe detectors. 126,128Pd; deduced levels, isomers, J, π, conversion coefficient, multipolarity, B(E2), B(E1), B(E3), configuration, seniority scheme for isomers. N=82 shell closure in neutron rich Pd nuclei.

doi: 10.1103/PhysRevLett.111.152501
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2013WI01      Acta Phys.Pol. B44, 381 (2013)

E.Wilson, Zs.Podolyak, B.Fornal, R.V.F.Janssens, M.Bowry, M.Bunce, M.P.Carpenter, C.J.Chiara, N.Cieplicka, A.Y.Deo, G.D.Dracoulis, H.Grawe, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, B.Szpak, P.M.Walker, S.Zhu

Core Excitations Across the Neutron Shell Gap in 207Tl

NUCLEAR REACTIONS 208Pb(208Pb, X)207Tl/209Bi, E=1446 MeV; measured reaction products, Eγ, Iγ, γ-γ-γ-coin.; deduced transition energies and intensities. Comparison with available data.

doi: 10.5506/APhysPolB.44.381
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2012DR02      Phys.Lett. B 709, 59 (2012)

G.D.Dracoulis, G.J.Lane, A.P.Byrne, H.Watanabe, R.O.Hughes, N.Palalani, F.G.Kondev, M.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, P.Chowdhury, Y.Shi, F.R.Xu

Long-lived three-quasiparticle isomers in 191Ir and 193Ir with triaxial deformation

NUCLEAR REACTIONS 186W, 187Re, 192Os(126Xe, X)191Ir/193Ir, E=6 MeV/nucleon; measured reaction products, X-rays, Eγ, Iγ, γ-γ-coin.; deduced high-spin state energies, J, π, transition strengths, total conversion coefficients, triaxial shape, extreme isomerism. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2012.02.008
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2012DR11      J.Phys.:Conf.Ser. 381, 012060 (2012)

G.D.Dracoulis, G.J.Lane, A.P.Byrne, H.Watanabe, R.O.Hughes, N.Palalani, F.G.Kondev, M.P.Carpenter, D.Seweryniak, S.Zhu, R.V.F.Janssens, C.J.Lister, T.Lauritsen, P.Chowdhury, Y.Shi, F.R.Xu

Isomers and alignments in 191Ir and 192Os

NUCLEAR REACTIONS 186W, 192Os(136Xe, X), E=6.0 MeV/nucleon; measured Eγ, Iγ, γγ-coin, X-rays using Gammasphere. 191Ir, 192Os deduced levels, J, π, γ transitions, rotational bands, deformation, high-spin states, isomeric states, T1/2, net alignments. Compared with published 194Pt, 196Hg.

doi: 10.1088/1742-6596/381/1/012060
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2012HU10      Phys.Rev. C 86, 054314 (2012)

R.O.Hughes, G.J.Lane, G.D.Dracoulis, A.P.Byrne, P.H.Nieminen, H.Watanabe, M.P.Carpenter, P.Chowdhury, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu

High-spin structure, K isomers, and state mixing in the neutron-rich isotopes 173Tm and 175Tm

NUCLEAR REACTIONS 174,176Yb, 175,176Lu(136Xe, X), E=820 MeV; measured Eγ, Iγ, γγ-coin, isomer half-lives by γγ(t) using Gammasphere array at ANL facility. 173,175Tm; deduced high-spin levels, isomers, J, π, bands, conversion coefficients, multipolarity, alignments, mixing ratios, gK-gR, B(EL), B(ML), hindrance factors, configurations. Comparison with multiquasiparticle calculations. Systematics of energies of multiquasiparticle states in N=104, 106 isotones 172,174Er, 173,175Tm, 174,176Yb, 175,177Lu. Mixing of high-K bands.

NUCLEAR STRUCTURE 173,175Tm; calculated levels, J, π, configurations. Multiquasiparticle calculations using single-particle energies from a Nilsson calculation and Lipkin-Nogami formalism for pairing correlations. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.054314
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2012SW01      Phys.Rev. C 85, 024313 (2012)

T.P.D.Swan, P.M.Walker, Zs.Podolyak, M.W.Reed, G.D.Dracoulis, G.J.Lane, T.Kibedi, M.L.Smith

Discovery of isomers in dysprosium, holmium, and erbium isotopes with N=94 to 97

NUCLEAR REACTIONS 160Gd(9Be, X)161Dy/163Ho/162Er/165Er, E=57 MeV; measured Eγ, Iγ, γγ-coin, delayed γ, γγ(t), half-lives. 161Dy, 163Ho, 162,165Er; deduced levels, J, π, isomers, B(E2), B(M1), B(E1), intrinsic g factors, rotational bands, configurations, angular momentum alignment, reduced hindrance factors. Coriolis and octupole band mixing. Comparison with BCS calculations.

doi: 10.1103/PhysRevC.85.024313
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2012SW02      Phys.Rev. C 86, 044307 (2012)

T.P.D.Swan, P.M.Walker, Zs.Podolyak, M.W.Reed, G.D.Dracoulis, G.J.Lane, T.Kibedi, M.L.Smith

Hindered decays from a non-yrast four-quasiparticle isomer in 164Er

NUCLEAR REACTIONS 160Gd(9Be, 5n), E=57 MeV; measured Eγ, Iγ, γγ-coin, isomer half-life by γ(t) using CAESAR array at ANU facility. 164Er; deduced levels, J, π, bands, total conversion coefficients, configurations, branching ratio, hindrance factor, forbiddenness. Highly K-forbidden γ-ray transitions. Systematics of E2 and E3 reduced-hindrance factors in 164Er, 174Yb, 174,175,176,177,178Hf, 174,176,179,180,181W, 179Ta, 182,183,184Os.

doi: 10.1103/PhysRevC.86.044307
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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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2011MO27      J.Korean Phys.Soc. 59, 1525s (2011)

C.-B.Moon, G.D.Dracoulis, R.A.Bark, A.P.Byrne, P.A.Davidson, T.Kibedi, G.J.Lane, A.N.Wilson

Various Isomers in Doubly Odd I Isotopes

NUCLEAR REACTIONS 118Sn(6Li, 4n), E=48 MeV;120Sn(7Li, 5n), E=58 MeV;122Sn(7Li, 5n), E=54 MeV; measured in-beam Eγ, Iγ, γγ-coin using CAESAR array with 6 HPGe and 2 LEPS. 120,122,124I deduced levels, J, π, γ transitions, isomeric transitions, bands, two-quasiparticle configurations of specific states. Comparison of bandhead states in 11 isotopes of I.

doi: 10.3938/jkps.59.1525
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2011MO28      J.Korean Phys.Soc. 59, 1539s (2011)

C.-B.Moon, G.D.Dracoulis, R.A.Bark, A.P.Byrne, P.A.Davidson, T.Kibedi, G.J.Lane, A.N.Wilson

Decay Schemes of Three-Quasiparticle Isomers in 119, 121Sb and 121, 123I

NUCLEAR REACTIONS 120Sn(7Li, 4nα), (7Li, 6n), E=58 MeV;122Sn(7Li, 4nα), (7Li, 6n), E=54 MeV; measured Eγ, Iγ using CAESAR array; deduced levels, J, π, high-spin, γ transitions, isomeric transitions.

doi: 10.3938/jkps.59.1539
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2011SW02      Phys.Rev. C 83, 034322 (2011), Publishers Note Phys.Rev. C 83, 049903 (2011)

T.P.D.Swan, P.M.Walker, Zs.Podolyak, M.W.Reed, G.D.Dracoulis, G.J.Lane, T.Kibedi, M.L.Smith

Discovery of a nonyrast Kπ = 8+ isomer in 162Dy, and the influence of competing K-mixing mechanisms on its highly forbidden decay

NUCLEAR REACTIONS 160Gd(9Be, 3nα), E=57 MeV; measured Eγ, Iγ, γγ-coin, γγ(t), pulsed beam, isomer half-lives. 162Dy; deduced levels, J, π, isomer, bands, multipolarity, hindrance factors, alignment plots, configurations. Analyzed small deviations from NpNn dependence.

doi: 10.1103/PhysRevC.83.034322
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2010DR01      Phys.Rev. C 81, 011301 (2010)

G.D.Dracoulis, F.G.Kondev, G.J.Lane, A.P.Byrne, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, P.Chowdhury

Connections between high-K and low-K states in the s-process nucleus 176Lu

NUCLEAR REACTIONS 176Lu(136Xe, 136Xe'γ), E=6.0 MeV/nucleon; measured Eγ, Iγ, γγ-coin using the Gammasphere array. Beam-on and beam-off measurements. 176Lu; deduced levels, J, π, multipolarity, transition strengths, partial γ-ray widths, connection between high-K and low-K bands, and astrophysical significance for the s-process nucleus.

doi: 10.1103/PhysRevC.81.011301
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2010DR02      Phys.Rev. C 81, 054313 (2010)

G.D.Dracoulis, G.J.Lane, F.G.Kondev, H.Watanabe, D.Seweryniak, S.Zhu, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, I.Stefanescu

Two-quasiparticle structures and isomers in 168Er, 170Er, and 172Er

NUCLEAR REACTIONS 170Er(136Xe, X)168Er/170Er/172Er, E=830 MeV; measured Eγ, Iγ, γγ, γγ(t), and isomer half-lives using Gammasphere array. 168,170,172Er; deduced levels, J, π, rotational bands, multipolarities, B(E1), B(M1), B(E2), K-hindrance factors, configurations, quasiparticle structures, and gK-gR.

doi: 10.1103/PhysRevC.81.054313
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2010DR05      Phys.Rev. C 82, 034317 (2010)

G.D.Dracoulis, G.J.Lane, R.O.Hughes, F.G.Kondev, H.Watanabe, D.Seweryniak, S.Zhu, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, I.Stefanescu, P.Chowdhury

Structure of three-quasiparticle isomers in 169Ho and 171Tm

NUCLEAR REACTIONS 170Er(136Xe, X), E=830 MeV; measured Eγ, Iγ, γγ-coin, delayed spectra, half-lives and branching ratios using Gammasphere array. 169Ho, 171Tm; deduced levels, J, π, isomer, transition strengths and hindrances, gK-gR values, bands and quasiparticle configurations.

doi: 10.1103/PhysRevC.82.034317
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2010LA16      Phys.Rev. C 82, 051304 (2010)

G.J.Lane, G.D.Dracoulis, F.G.Kondev, R.O.Hughes, H.Watanabe, A.P.Byrne, M.P.Carpenter, C.J.Chiara, P.Chowdhury, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, D.Seweryniak, I.Stefanescu, S.Zhu

Structure of neutron-rich tungsten nuclei and evidence for a 10- isomer in 190W

NUCLEAR REACTIONS 186W, 192Os(136Xe, X), E=840 MeV pulsed beam; measured Eγ, Iγ, prompt and delayed γ spectra, γγ-coin, γγ(t), half-lives. 188W, 190W; deduced levels, J, π, isomers, internal conversion coefficients, multipolarity, configurations, transition strengths, K-hindrances. 186,188,190W; systematics of calculated two-particle states.

doi: 10.1103/PhysRevC.82.051304
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2010WI08      Eur.Phys.J. A 43, 145 (2010)

A.N.Wilson, M.C.East, G.D.Dracoulis, A.P.Byrne, R.M.Clark, P.M.Davidson, P.Fallon, A.Gorgen, G.J.Lane, A.O.Macchiavelli, D.Ward

On the character of three 8+ states in 192Pb

NUCLEAR REACTIONS 168Er(29Si, 5n), E=154 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere HPGe detector array. 192Pb; deduced levels, J, π, multipolarities, deformation, configurations. Time-correlated spectroscopy, DCO analysis. Comparison with systematics.

doi: 10.1140/epja/i2010-10905-3
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2009DR03      Phys.Rev. C 79, 031302 (2009)

G.D.Dracoulis, G.J.Lane, T.Kibedi, P.Nieminen

Characterization of the 32 μs isomer in 189Pb as a shears-mode bandhead

NUCLEAR REACTIONS 164Er(29Si, 4n), E=145 MeV; measured Eγ, Iγ, γγ-coin, conversion electrons, internal conversion coefficients. 189Pb; deduced levels, J, π, multipolarity, configuration, shear band. 189,191,193,195,197,199Pb; systematics of shears bands, and total residual interaction as a function of occupation probability. Comparisons with empirical shell-model calculations.

doi: 10.1103/PhysRevC.79.031302
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2009DR04      Phys.Rev. C 79, 054313 (2009)

G.D.Dracoulis, P.M.Davidson, G.J.Lane, A.P.Byrne, T.Kibedi, P.Nieminen, H.Watanabe, A.N.Wilson

Spectroscopy and high-spin structure of 209Fr

NUCLEAR REACTIONS 197Au(16O, 4n), E=88-95 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γ(t), conversion electrons, half-lives. 209Fr; deduced levels, J, π, isomers, multipolarities, internal conversion coefficients, transition strengths, configurations. 209,211,213Fr; systematics of yrast states. Comparison with shell-model predictions.

doi: 10.1103/PhysRevC.79.054313
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2009DR06      Phys.Rev. C 79, 061303 (2009)

G.D.Dracoulis, G.J.Lane, F.G.Kondev, H.Watanabe, D.Seweryniak, S.Zhu, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, I.Stefanescu

Lifetime of the Kπ = 8- isomer in the neutron-rich nucleus 174Er, and N = 106 E1 systematics

NUCLEAR REACTIONS 176Yb(136Xe, X), E=840 MeV; measured Eγ, Iγ, γγ-coin, isomer half-life. 174Er; deduced levels, J, π, E1 hindrance factors, configurations. Discussed systematics of E1 hindrance factors and E(4+)/E(2+) for even-even Er, Yb, Hf, W, Os, Pt, Hg and Pb nuclides. K-mixing calculations in the framework of particle-rotor model.

doi: 10.1103/PhysRevC.79.061303
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2009DR08      Eur.Phys.J. A 40, 127 (2009)

G.D.Dracoulis, P.M.Davidson, G.J.Lane, A.P.Byrne, T.Kibedi, P.Nieminen, A.N.Wilson, H.Watanabe

Assignment of levels in 208Fr and 10- isomers in the odd-odd isotones 206At and 208Fr

NUCLEAR REACTIONS 197Au(16O, 5n), (16O, 3nα), E=95 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γ(t), conversion electrons, T1/2 using the CAESAR array. 208Fr; deduced levels, J, π, T1/2, B(E1), multipolarities, conversion coefficients, configurations. 206At; deduced levels, J, π, T1/2, B(E1), configurations.

doi: 10.1140/epja/i2009-10756-y
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2009DR12      Phys.Rev. C 80, 054320 (2009)

G.D.Dracoulis, G.J.Lane, A.P.Byrne, P.M.Davidson, T.Kibedi, P.H.Nieminen, H.Watanabe, A.N.Wilson, H.L.Liu, F.R.Xu

Structure of the N=126 nuclide 212Rn: Valence and core excited configurations

NUCLEAR REACTIONS 204Hg(13C, 5n), E=89 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), and half-lives using CAESAR array. 212Rn; deduced levels, J, π, multipolarities, transition strengths, and configurations. Comparison with semi-empirical shell model approach and deformed independent particle model (DIPM) calculations.

doi: 10.1103/PhysRevC.80.054320
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2009KO19      Phys.Rev. C 80, 014304 (2009)

F.G.Kondev, G.D.Dracoulis, G.J.Lane, I.Ahmad, A.P.Byrne, M.P.Carpenter, P.Chowdhury, R.V.F.Janssens, T.Kibedi, T.Lauritsen, C.J.Lister, D.Seweryniak, S.K.Tandel, S.Zhu

Multi-quasiparticle isomers in 174Lu

NUCLEAR REACTIONS Lu, 176Lu(136Xe, X), E ≈ 20% above Coulomb barrier; measured Eγ, Iγ, γγ-coin and half-lives. 174Lu; deduced levels, J, π, isomers, conversion coefficients, multipolarity, transition probabilities, configurations, hindrance factors, rotational bands, band alignments and multi-quasiparticle intrinsic states.

doi: 10.1103/PhysRevC.80.014304
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2009LA17      Phys.Rev. C 80, 024321 (2009)

G.J.Lane, G.D.Dracoulis, A.P.Byrne, R.O.Hughes, H.Watanabe, F.G.Kondev, C.J.Chiara, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, D.Seweryniak, S.Zhu, P.Chowdhury, I.Stefanescu

Decay of a Kπ = 21/2-, 17-ms isomer in 185Ta

NUCLEAR REACTIONS 186W(136Xe, X)185Ta, E=840 MeV; measured Eγ, Iγ, γγ-coin and half-lives. 185Ta; deduced levels, J, π, isomer, mixing ratios, bands and configurations, transition rates and other rotational-model characteristics, K-allowed E1 and K-forbidden transitions.

doi: 10.1103/PhysRevC.80.024321
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2009WA02      Phys.Rev. C 79, 024306 (2009)

H.Watanabe, G.J.Lane, G.D.Dracoulis, T.Kibedi, A.P.Byrne, P.Nieminen, R.O.Hughes, F.G.Kondev, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, D.Seweryniak, S.Zhu, P.Chowdhury, C.-B.Moon

Decay properties of high-spin isomers and other structures in 121Sb and 123Sb

NUCLEAR REACTIONS Yb, Lu, W, Os(136Xe, X)121Sb/123Sb, E=6.0-6.2 MeV/nucleon; measured Eγ, γγ-coin, γ(t), half-lives; deduced isomers. 120Sn(7Li, 2nα), E=58 MeV; 122Sn(7Li, 2nα), E=54 MeV; measured Eγ, Iγ, γγ-coin, coversion electron spectra, half-lives by decay curve analyses and centroid-shift methods, angular correlations, DCO, conversion coefficients. 121,123Sb; deduced levels, J, π, multipolarity, mixing ratios, configurations. Comparisons with 120Sn and 122Sn and with multistate mixing calculations. 113,115,117,119,121,123,125,127,129,131,133Sb; systematics.

doi: 10.1103/PhysRevC.79.024306
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2009WA06      Phys.Rev. C 79, 044321 (2009)

P.M.Walker, R.J.Wood, G.D.Dracoulis, T.Kibedi, R.A.Bark, A.M.Bruce, A.P.Byrne, P.M.Davidson, H.M.El-Masri, G.J.Lane, C.Moon, J.N.Orce, F.M.Prados Estevez, C.Wheldon, A.N.Wilson

Fast decay of a three-quasiparticle isomer in 171Tm

NUCLEAR REACTIONS 170Er(7Li, 2nα), E=42 MeV; measured Eγ, Iγ, γγ-coin, conversion electron spectra, half-lives. 171Tm; deduced levels, J, π, multipolarities, conversion coefficients, bands, configurations, K-mixing matrix elements.

doi: 10.1103/PhysRevC.79.044321
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2009WA11      Phys.Rev. C 79, 064311 (2009)

H.Watanabe, G.J.Lane, G.D.Dracoulis, A.P.Byrne, P.Nieminen, F.G.Kondev, K.Ogawa, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, D.Seweryniak, S.Zhu, P.Chowdhury

Multi-quasiparticle isomers involving proton-particle and neutron-hole configurations in 131I and 133I

NUCLEAR REACTIONS 176Yb, 176Lu, 186W, 192Os(136Xe, X)131I/133I, E=820-840 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), and isomer half-lives. 131,133I; deduced levels, J, π, mixing ratios, conversion coefficients, and multipolarities. Z=50-53, N=78-80; systematics of B(E2) rates for isomer decays. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.79.064311
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2009WA24      Eur.Phys.J. A 42, 163 (2009)

H.Watanabe, G.J.Lane, G.D.Dracoulis, A.P.Byrne, P.Nieminen, F.G.Kondev, K.Ogawa, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, D.Seweryniak, S.Zhu, P.Chowdhury

Identification of Jπ = 19/2+ and 23/2+ isomeric states in 127Sb

NUCLEAR REACTIONS 176Yb, 176Lu, 186W(136Xe, X)127Sb, E=6.0-6.2 MeV/nucleon; measured Eγ, Iγ, γγ-coin, γ(θ), γ(t), T1/2 using Gammasphere array. 127Sb; deduced levels, J, π, T1/2, δ, B(E2), B(E3), B(M2), internal conversion coefficients. Comparison with shell model and systematics for adjacent isotopes.

doi: 10.1140/epja/i2009-10881-7
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2008DR01      Phys.Lett. B 662, 19 (2008)

G.D.Dracoulis, G.J.Lane, A.P.Byrne, P.M.Davidson, T.Kibedi, P.Nieminen, H.Watanabe, A.N.Wilson

High-spin isomers in 212Rn in the region of triple neutron core-excitations

NUCLEAR REACTIONS 204Hg(13C, 5n), E=88 MeV; measured Eγ, Iγ, γγ-coin; deduced multipolarities. 212Rn; measured level half-lives; deduced high-spin levels, J, π, configurations. Comparison with semi-empirical shell model.

doi: 10.1016/j.physletb.2008.02.055
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2008DR03      Phys.Rev. C 77, 034308 (2008)

G.D.Dracoulis, G.J.Lane, A.P.Byrne, P.M.Davidson, T.Kibedi, P.Nieminen, K.H.Maier, H.Watanabe, A.N.Wilson

Neutron core excitations in the N = 126 nuclide 210Po

NUCLEAR REACTIONS 204Hg(13C, 3nα)E=88 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), half-lives. 210Po; deduced levels, J, π, configurations. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.77.034308
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2008HU05      Phys.Rev. C 77, 044309 (2008)

R.O.Hughes, G.J.Lane, G.D.Dracoulis, T.Kibedi, P.Nieminen, H.Watanabe

Two-quasiparticle isomer, E1 hindrances and residual interactions in 172Tm

NUCLEAR REACTIONS 170Er(7Li, nα), E=30 MeV; measured Eγ, Iγ, γγ-coin, lifetime of 6+ isomer, B(E1), hindrance factors for γ-transitions. 172Tm; deduced levels, J, π, band configurations.

doi: 10.1103/PhysRevC.77.044309
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2008JO03      Phys.Rev. C 77, 034311 (2008)

G.A.Jones, S.J.Williams, P.M.Walker, Zs.Podolyak, S.Zhu, M.P.Carpenter, J.J.Carroll, R.S.Chakrawarthy, P.Chowdhury, I.J.Cullen, G.D.Dracoulis, A.B.Garnsworthy, G.Hackman, R.V.F.Janssens, T.L.Khoo, F.G.Kondev, G.J.Lane, Z.Liu, D.Seweryniak, N.J.Thompson

High-spin, multiparticle isomers in 121, 123Sb

NUCLEAR REACTIONS 27Al(178Hf, X)121Sb/123Sb, E=1150 MeV; measured Eγ, Iγ, half-lives of isomers, internal conversion coefficients; deduced multipolarities, mixing ratios, γγ(θ). 121,123Sb; deduced levels, J, π. 120,122Sn, 117,119,125,126,127,128,129,130,131Sb; systematics.

doi: 10.1103/PhysRevC.77.034311
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2007JO13      Phys.Rev. C 76, 047303 (2007)

G.A.Jones, P.H.Regan, P.M.Walker, Zs.Podolyak, P.D.Stevenson, M.P.Carpenter, J.J.Carroll, R.S.Chakrawarthy, P.Chowdhury, A.B.Garnsworthy, R.V.F.Janssens, T.L.Khoo, F.G.Kondev, G.J.Lane, Z.Liu, D.Seweryniak, N.J.Thompson, S.Zhu, S.J.Williams

Identification of a high-spin isomer in 99Mo

NUCLEAR REACTIONS 27Al(178Hf, X), E=1150 MeV; measured Eγ, Iγ, γγ-coin. 99Mo deduced levels, J, π, half-life, isomer, band structure.

doi: 10.1103/PhysRevC.76.047303
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2007JU06      Phys.Rev. C 76, 054306 (2007)

D.S.Judson, A.M.Bruce, T.Kibedi, G.D.Dracoulis, A.P.Byrne, G.J.Lane, K.H.Maier, C.-B.Moon, P.Nieminen, J.N.Orce, M.J.Taylor

Structure of the isomeric states in 123, 125Sb

NUCLEAR REACTIONS 122Sn(7Li, α2nγ), E=35 MeV; 124Sn(7Li, α2nγ), E=37 MeV; measured Eγ, Iγ, γγ-coin, internal conversion coefficients, conversion electron spectra; deduced multipolarties, B(E1), B(E2), B(E3), B(M2), B(M4). 123,125Sb; measured half-lives; deduced levels, J, π.

doi: 10.1103/PhysRevC.76.054306
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2007MA83      Phys.Rev. C 76, 064304 (2007)

K.H.Maier, T.Kibedi, G.D.Dracoulis, P.Boutachkov, A.Aprahamian, A.P.Byrne, P.M.Davidson, G.J.Lane, M.Marie-Jeanne, P.Nieminen, H.Watanabe

Measurement of conversion electrons with the 208Pb(p, n)208Bi reaction and derivation of the shell model proton neutron hole interaction from the properties of 208Bi

NUCLEAR REACTIONS 208Pb(p, n), E=9 MeV; measured ce, (ce)(ce)-, γ(ce)-coin; analyzed Eγ, Iγ, γγ-coin. 208Bi; deduced levels, J, π, multipolarities, configurations, angular momenta, spectroscopic factors for proton transfer and neutron pickup. Detailed shell-model calculations.

doi: 10.1103/PhysRevC.76.064304
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2007PA07      Phys.Rev. C 75, 014308 (2007)

E.S.Paul, K.Starosta, A.O.Evans, A.J.Boston, H.J.Chantler, C.J.Chiara, M.Devlin, A.M.Fletcher, D.B.Fossan, D.R.LaFosse, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, D.G.Sarantites, J.M.Sears, A.T.Semple, J.F.Smith, C.Vaman, A.V.Afanasjev, I.Ragnarsson

Smooth terminating bands in 112Te: Particle-hole induced collectivity

NUCLEAR REACTIONS 58Ni(58Ni, 4p), (58Ni, 2p), E=240, 250 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 112Te deduced high-spin levels, J, π, T1/2, configurations, deformation, band termination features. 114Xe levels deduced T1/2, transition quadrupole moment. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.75.014308
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2007PA34      Phys.Rev. C 76, 034322 (2007)

E.S.Paul, A.J.Boston, C.J.Chiara, M.Devlin, D.B.Fossan, S.J.Freeman, D.R.LaFosse, G.J.Lane, M.J.Leddy, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, D.G.Sarantites, J.M.Sears, A.T.Semple, J.F.Smith, K.Starosta

γ-ray spectroscopy of neutron-deficient 110Te. I. Low- and intermediate-spin structures

NUCLEAR REACTIONS 58Ni(58Ni, 2pα), E=250 MeV; measured Eγ, Iγ, γγ, (particle)γ-coinc. 110Te deduced levels, J, π, multipolarity.

doi: 10.1103/PhysRevC.76.034322
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2007PA35      Phys.Rev. C 76, 034323 (2007)

E.S.Paul, A.O.Evans, A.J.Boston, C.J.Chiara, M.Devlin, D.B.Fossan, S.J.Freeman, D.R.LaFosse, G.J.Lane, M.J.Leddy, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, D.G.Sarantites, J.M.Sears, A.T.Semple, J.F.Smith, K.Starosta, A.V.Afanasjev, I.Ragnarsson

γ-ray spectroscopy of neutron-deficient 110Te. II. High-spin smooth-terminating structures

NUCLEAR REACTIONS 58Ni(58Ni, 2pα), E=240, 250 MeV; measured Eγ, Iγ, γγ, (particle)γ-coinc. 110Te deduced levels, J, π, multipolarity.

doi: 10.1103/PhysRevC.76.034323
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2006DR04      Phys.Lett. B 635, 200 (2006)

G.D.Dracoulis, G.J.Lane, F.G.Kondev, A.P.Byrne, R.O.Hughes, P.Nieminen, H.Watanabe, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, D.Seweryniak, S.Zhu, P.Chowdhury, F.R.Xu

Two-quasiparticle K-isomers and pairing strengths in the neutron-rich isotopes 174Er and 172Er

NUCLEAR REACTIONS 176Yb(136Xe, X)174Er/172Er, E=6.0 MeV/nucleon; measured prompt and delayed Eγ, Iγ, γγ-coin. 172,174Er deduced high-spin levels, J, π, isomeric states, configurations. Gammasphere array, level systematics in neighboring isotones discussed.

NUCLEAR STRUCTURE 172,174Er, 174Yb, 176Hf, 178W, 180Os; calculated high-spin isomers energies; deduced pairing strength. Configuration-constrained potential-energy-surface calculations.

doi: 10.1016/j.physletb.2006.02.057
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