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NSR database version of March 21, 2024.

Search: Author = W.Reviol

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2024LA01      Phys.Rev. C 109, 024309 (2024)

S.Lalkovski, F.G.Kondev, K.Auranen, A.D.Ayangeakaa, M.P.Carpenter, J.A.Clark, P.Copp, N.P.Giha, D.J.Hartley, T.Lauritsen, S.Marley, G.E.Morgan, C.Muller-Gatermann, S.Nandi, W.Reviol, D.Santiago-Gonzalez, G.Savard, D.Seweryniak, Ir.B.Vasilev, J.Wu

Structure of the high-spin, β-decaying state in the neutron-rich nucleus 146La

doi: 10.1103/PhysRevC.109.024309
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2023AN09      Phys.Rev. C 108, 034303 (2023)

A.N.Andreyev, D.Seweryniak, B.Andel, S.Antalic, D.T.Doherty, A.Korichi, C.Barton, L.Canete, M.P.Carpenter, R.M.Clark, P.A.Copp, J.G.Cubiss, J.Heery, Y.Hrabar, H.Huang, T.Huang, V.Karayonchev, F.G.Kondev, T.Lauritsen, Z.Liu, G.Lotay, C.Muller-Gatermann, S.Nandi, C.Page, D.H.Potterveld, P.H.Regan, W.Reviol, D.Rudolph, M.Siciliano, R.S.Sidhu, A.Sitarcik, P.J.Woods, Z.Yue, W.Zhang

α decay of the neutron-deficient isotope 190At

doi: 10.1103/PhysRevC.108.034303
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2023BE26      Phys.Rev. C 108, L061301 (2023)

T.Beck, A.Gade, B.A.Brown, J.A.Tostevin, D.Weisshaar, D.Bazin, K.W.Brown, R.J.Charity, P.J.Farris, S.A.Gillespie, A.M.Hill, J.Li, B.Longfellow, W.Reviol, D.Rhodes

Probing proton cross-shell excitations through the two-neutron removal from 38Ca

doi: 10.1103/PhysRevC.108.L061301
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2023CA13      Phys.Rev. C 108, 035807 (2023)

L.Canete, D.T.Doherty, G.Lotay, D.Seweryniak, C.M.Campbell, M.P.Carpenter, W.N.Catford, K.A.Chipps, J.Henderson, R.G.Izzard, R.V.F.Janssens, H.Jayatissa, J.Jose, A.R.L.Kennington, F.G.Kondev, A.Korichi, T.Lauritsen, C.Muller-Gatermann, C.Paxman, Zs.Podolyak, B.J.Reed, P.H.Regan, W.Reviol, M.Siciliano, G.L.Wilson, R.Yates, S.Zhu

Confirmation of a new resonance in 26Si and contribution of classical novae to the galactic abundance of 26Al

doi: 10.1103/PhysRevC.108.035807
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2023DR01      Phys.Rev. C 107, 034306 (2023)

N.Dronchi, D.Weisshaar, B.A.Brown, A.Gade, R.J.Charity, L.G.Sobotka, K.W.Brown, W.Reviol, D.Bazin, P.J.Farris, A.M.Hill, J.Li, B.Longfellow, D.Rhodes, S.N.Paneru, S.A.Gillespie, A.Anthony, E.Rubino, S.Biswas

Measurement of the B(E2 ↑) strengths of 36Ca and 38Ca

NUCLEAR REACTIONS 197Au(36Ca, 36Ca), E=76.9 MeV/nucleon; 197Au(38Ca, 38Ca), E=69.1 MeV/nucleon; 197Au(34Ar, 34Ar), E not given; measured reaction products, Eγ, Iγ; deduced σ and B(E2) for the excitation of the first 2+ (34Ar was present as contamination). 36Ca; deduced proton decay branching ratio for 2 state proton unbound state, spectroscopic factors, charge radii difference with mirror nuclei 36S. 35K(p, γ), T=0.5-2 GK; deduced reaction rate using obtained in this paper values for the 36Ca B(E2) and proton branching ratio. GRETINA HPGe array and the S800 spectrograph used to measure the γ-decay following Coulomb excitation. CAESAR CsI(Na) array and the S800 spectrograph used to measure the p/γ- branching ratio in 36Ca. Systematics of first 2+ states energy and B(E2) for Ca isotopes. Beam produced from fragmentation reaction 9Be(40Ca, X), E=140 MeV/nucleon at Coupled Cyclotron Facility (NSCL).

NUCLEAR STRUCTURE 36,38,40,42,44,46,48,50Ca, 36S, 38Ar; calculated energy of first 2+ state, B(E2) for the excitation of first 2+ state. Shell model calculations with ZBM2, USDB, spdfu-mix and GXPF1A interactions. Comparison to experimental data.

doi: 10.1103/PhysRevC.107.034306
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2022GA31      Phys.Rev.Lett. 129, 242501 (2022)

A.Gade, B.A.Brown, D.Weisshaar, D.Bazin, K.W.Brown, R.J.Charity, P.Farris, A.M.Hill, J.Li, B.Longfellow, D.Rhodes, W.Reviol, J.A.Tostevin

Dissipative Reactions with Intermediate-Energy Beams: A Novel Approach to Populate Complex-Structure States in Rare Isotopes

NUCLEAR REACTIONS 9Be(38Ca, 38Ca'), E=60.9 MeV/nucleon; measured reaction products, Eγ, Iγ. 38Ca; deduced γ-ray energies and relative intensities, partial level scheme, multiparticle-multihole excited states, negative-parity, complex-structure final states. Comparison with shell model calculations. The Coupled Cyclotron Facility at NSCL, GRETINA array.

doi: 10.1103/PhysRevLett.129.242501
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2022GA32      Phys.Rev. C 106, 064303 (2022)

A.Gade, D.Weisshaar, B.A.Brown, D.Bazin, K.W.Brown, R.J.Charity, P.Farris, A.M.Hill, J.Li, B.Longfellow, D.Rhodes, W.Reviol, J.A.Tostevin

Exploiting dissipative reactions to perform in-beam γ-ray spectroscopy of the neutron-deficient isotopes 38, 39Ca

NUCLEAR REACTIONS 9Be(38Ca, 38Ca), (38Ca, 39Ca), E=60.9 MeV/nucleon; measured reaction products Eγ, Iγ, γγ-coin, (particle)γ-coin. 38,39Ca; deduced levels, J, π, high-spin states. Comparison to shell-model calculations using the FSU spsdf p interaction and experimental results for 39K mirror nuclei. High resolution γ-ray tracking array GRETINA coupled with S800 spectroraph. Beam from fragmentation of 40Ca 140 MeV/nucleon primary beam on 9Be target in the A1900 separator at Coupled Cyclotron Facility (NSCL).

doi: 10.1103/PhysRevC.106.064303
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2022GR08      Phys.Lett. B 834, 137446 (2022)

T.J.Gray, J.M.Allmond, R.V.F.Janssens, W.Korten, A.E.Stuchbery, J.L.Wood, A.D.Ayangeakaa, S.Bottoni, B.M.Bucher, C.M.Campbell, M.P.Carpenter, H.L.Crawford, H.David, D.T.Doherty, P.Fallon, M.T.Febbraro, A.Galindo-Uribarri, C.J.Gross, M.Komorowska, F.G.Kondev, T.Lauritsen, A.O.Macchiavelli, P.Napiorkowsi, E.Padilla-Rodal, S.D.Pain, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, C.Y.Wu, C.-H.Yu, S.Zhu

E2 rotational invariants of 01+ and 21+ states for 106Cd: The emergence of collective rotation

NUCLEAR REACTIONS 208Pb(106Cd, 106Cd'), E=3.849 MeV/nucleon; measured Doppler-corrected γ-ray spectra, Eγ, Iγ, (106Cd)γ-coin using GRETINA array with 32 HPGe crystals for γ detection, and CHICO array for particles at the ATLAS-ANL facility. 106Cd; deduced levels, J, π, E2 and E3 matrix elements using GOSIA analysis code, E2 transition strengths, spectroscopic quadrupole moments, electric quadrupole invariants (Kumar-Cline sum rules) Q3cos(3δ), axial-symmetry parameter δ. Comparison with beyond mean-field (BMF) and shell-model calculations, and with previous experimental data.

doi: 10.1016/j.physletb.2022.137446
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2022HU09      Phys.Lett. B 833, 137345 (2022)

H.Huang, W.Q.Zhang, A.N.Andreyev, Z.Liu, D.Seweryniak, Z.H.Li, C.Y.Guo, A.E.Barzakh, P.Van Duppen, B.Andel, S.Antalic, M.Block, A.Bronis, M.P.Carpenter, P.Copp, J.G.Cubiss, B.Ding, D.T.Doherty, Z.Favier, F.Giacoppo, T.H.Huang, B.Kindler, F.G.Kondev, T.Lauritsen, J.G.Li, G.S.Li, B.Lommel, H.Y.Lu, M.Al Monthery, P.Mosat, Y.F.Niu, C.Raison, W.Reviol, G.Savard, S.Stolze, G.L.Wilson, H.Y.Wu, Z.H.Wang, F.R.Xu, Q.B.Zeng, X.H.Yu, F.F.Zeng, X.H.Zhou

First observation of the decay of the 13/2+ isomer in 183Hg and B(M2) systematics of neutron transitions across the nuclear chart

RADIOACTIVITY 183Hg(α) [from 187Pb α decay]; 187mPb(α) [from 142Nd(50Cr, 3n2pγ), E=255 MeV, followed by separation of fragments using Argonne gas-filled analyzer (AGFA) at the ATLAS-ANL facility]; measured reaction products, evaporation residues (EVRs), Eα, Iα, (EVR)α-correlations, αγ(t), Eγ, Iγ, x rays, T1/2 using double-sided silicon strip detector (DSSD), and four HPGe clover detectors. 183,183mHg; deduced levels, isomer, J, π, T1/2 of g.s. and isomer, α branching ratio, K-conversion coefficient, multipolarity, B(M2), Nilsson configurations. 187mPb; deduced T1/2. Systematics of decay schemes of 13/2+ isomers in 175,177,179,181,183,185Hg. Systematics of B(M2) values for 7/2-, 9/2+, 11/2- and 13/2+ isomers in even-Z, odd-N nuclei: 25Mg, 33Si, 33,35S, 37Ar, 39Ca, 59Cr, 61Fe, 63,67Ni, 63,65,67Zn, 67,69,71Ge, 69,71Se, 97,99Mo, 99,101,103Ru, 103,105Pd, 107,109Cd, 109,111,113,115Sn, 153Yb, 161Hf, 163W, 163Os, 171,189,191Pt, 181,183,201,203,205Hg, 209Pb, 205,207,211Po, 207,209,213Rn, 209,211Ra, 211,213Th.

doi: 10.1016/j.physletb.2022.137345
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2022HU21      Phys.Rev. C 106, L061301 (2022)

T.Huang, D.Seweryniak, B.B.Back, P.C.Bender, M.P.Carpenter, P.Chowdhury, R.M.Clark, P.A.Copp, X.-T.He, R.D.Herzberg, D.E.M.Hoff, H.Jayatissa, T.L.Khoo, F.G.Kondev, G.Morgan, C.Morse, A.Korichi, T.Lauritsen, C.Muller-Gatermann, D.H.Potterveld, W.Reviol, A.M.Rogers, S.Saha, G.Savard, K.Sharma, S.Stolze, S.Waniganeththi, G.L.Wilson, J.Wu, Y.-F.Xu, S.Zhu

Discovery of the new isotope 251Lr: Impact of the hexacontetrapole deformation on single-proton orbital energies near the Z=100 deformed shell gap

NUCLEAR REACTIONS 203Tl(50Ti, 2n)251Lr, 205Tl(50Ti, 2n)253Lr, E=237 MeV; measured reaction products, α-decay of the reaction products, Eα, Iα. 251,253Lr; deduced levels J, π, α-decay width. 251,253,255Lr; calculated single-proton levels near the Fermi surface. Calculations with particle-number conserving cranked shell model. Beam delivered to target by ATLAS linear accelerator and recoiling reaction products were separated in the Argonne Gas-Filled Analyzer (AGFA) at (ANL). Decay of the implanted reaction products was measured in pixelized double-sided Si strip detector (DSSD).

RADIOACTIVITY 251,253Lr(α)[from 203,205Tl(50Ti, 2n), E=237 MeV]; measured Eα, Iα; deduced T1/2, Q-value, α-decay branchings and widths. Comparison to other experimental data. and predictions of theoretical models.

doi: 10.1103/PhysRevC.106.L061301
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2022MA65      Phys.Rev. C 106, 064326 (2022)

A.Mattera, E.A.McCutchan, S.Zhu, C.Morse, M.P.Carpenter, P.Copp, C.Muller-Gatermann, W.Reviol, J.P.Greene, M.Gott

Decay spectroscopy of the blocked fission product 130I

RADIOACTIVITY 130I(β-)[from 130Te(p, n), E=7.5 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ). 130Xe; deduced levels, J, π, δ, transition intensities, γγ-angular correlations. Uncertainty of the strongest transition improved by a factor 2. Comparison to other experimental data. Measurement with Gammasphere array consisted of 49 Compton-suppressed HPGe detectors (ANL). Source was produced by irradiation at the Brookhaven Tandem Van de Graaff facility. Estimated source strength was around 11 μCi.

doi: 10.1103/PhysRevC.106.064326
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2022ZH22      Phys.Lett. B 829, 137129 (2022)

W.Q.Zhang, A.N.Andreyev, Z.Liu, D.Seweryniak, H.Huang, Z.H.Li, J.G.Li, C.Y.Guo, D.T.Doherty, A.E.Barzakh, P.Van Duppen, J.G.Cubiss, B.Andel, S.Antalic, M.Block, A.Bronis, M.P.Carpenter, P.Copp, B.Ding, Z.Favier, F.Giacoppo, T.H.Huang, X.H.Yu, B.Kindler, F.G.Kondev, T.Lauritsen, G.S.Li, B.Lommel, H.Y.Lu, M.Al Monthery, P.Mosat, Y.F.Niu, C.Raison, W.Reviol, G.Savard, S.Stolze, G.L.Wilson, H.Y.Wu, Z.H.Wang, F.R.Xu, Q.B.Zeng, X.H.Zhou

First observation of a shape isomer and a low-lying strongly-coupled prolate band in neutron-deficient semi-magic 187Pb

NUCLEAR REACTIONS 142Nd(50Cr, 3n2p)187Pb, E=255 MeV beam from ATLAS-ANL facility, followed by separation of evaporation residues (EVRs) using Argonne Gas-Filled Analyzer; measured Eα, Eγ, Iγ, x rays, αγ-coin, γγ-coin, T1/2 of a new low-energy microsec-isomer by αγ(t) using Gammasphere for γ detection and double-sided silicon strip detector (DSSD) for EVRs and α particles. Recoil-decay tagging (RDT) and isomer-decay tagging (IDT) methods. 187Pb; deduced high-spin levels, J, π, isomer, K-conversion coefficient, multipolarity, bands, B(E2), B(M1)/B(E2), triple-shape coexistence at low energy. Comparison with band structure in 185Hg. Systematics of aligned angular momenta plots and experimental Routhians for bands in 183,185Hg, 187Pb. 184Hg, 186Pb, 187Tl; observed γ rays. 186,187m,188Pb; observed α-decay peaks.

doi: 10.1016/j.physletb.2022.137129
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2022ZH46      Phys.Rev. C 106, 024317 (2022)

W.Q.Zhang, A.N.Andreyev, Z.Liu, D.Seweryniak, H.Huang, Z.H.Li, J.G.Li, C.Y.Guo, A.E.Barzakh, P.Van Duppen, M.Al Monthery, B.Andel, S.Antalic, M.Block, A.Bronis, M.P.Carpenter, P.Copp, J.G.Cubiss, B.Ding, D.T.Doherty, Z.Favier, F.Giacoppo, T.H.Huang, B.Kindler, F.G.Kondev, T.Lauritsen, G.S.Li, B.Lommel, H.Y.Lu, P.Mosat, Y.F.Niu, C.Raison, W.Reviol, G.Savard, S.Stolze, G.L.Wilson, H.Y.Wu, Z.H.Wang, F.R.Xu, X.H.Yu, Q.B.Zeng, X.H.Zhou

Identification of excited states in 188Bi and 188Po

NUCLEAR REACTIONS 142Nd(50Cr, 3np)188Bi, (50Cr, 4n)188Po, E=255 MeV; measured evaporation residues (EVRs), Eα, Eγ, Iγ, x rays, (EVR)γ-coin, αγ-coin, γγ-coin, using four clover HPGe detectors, Gammasphere array with 64 Compton-suppressed HPGe detectors, and DSSD and DSSD+Sibox at the ATLAS-ANL accelerator facility. 186,187,187m,188Pb, 189,189mBi; deduced recoil-decay tagging (RDT) γ-ray yields. 188Bi; deduced levels, J, π, isomer, T1/2 and decay modes of isomer, K-conversion coefficients, multipolarities, configurations. 188Po; deduced energy of the first 2+ level. 186Pb; deduced levels, J, π. 183,184,186Hg, 186,187,187m,188Pb, 188,189,189mBi; observed Eα. Systematics of 9/2-, 1/2+, 7/2- and 13/2+ level energies in 185,187,189,191,193,195Bi, and those of first 2+, 4+, 6+ and 8+, second 0+, 2+ and 4+ in 188,190,192,194,196,198,200,202,204,206,208,210Po.

doi: 10.1103/PhysRevC.106.024317
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2021DO08      Phys.Rev.Lett. 127, 202501 (2021)

D.T.Doherty, A.N.Andreyev, D.Seweryniak, P.J.Woods, M.P.Carpenter, K.Auranen, A.D.Ayangeakaa, B.B.Back, S.Bottoni, L.Canete, J.G.Cubiss, J.Harker, T.Haylett, T.Huang, R.V.F.Janssens, D.G.Jenkins, F.G.Kondev, T.Lauritsen, C.Lederer-Woods, J.Li, C.Muller-Gatermann, D.Potterveld, W.Reviol, G.Savard, S.Stolze, S.Zhu

Solving the Puzzles of the Decay of the Heaviest Known Proton-Emitting Nucleus 185Bi

RADIOACTIVITY 185Bi(p), (α), (IT) [from 95Mo(93Nb, 3n), E=424 MeV]; measured decay products, Eγ, Iγ, Eα, Iα, Ep, Ip, α-γ- and π-γ-coin.; deduced γ-ray energies, decay levels schemes, T1/2, high-spin states, reassignment of the ground-state lifetime, proton-decay spectroscopic factor. Fragment Mass Analyzer and Argonne Gas-Filled Analyzer at Argonne National Laboratory's ATLAS facility.

doi: 10.1103/PhysRevLett.127.202501
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2021RU09      Phys.Rev. C 104, 044314 (2021)

D.Rudolph, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, J.Ekman, C.Fahlander, P.Fallon, W.Reviol, D.G.Sarantites, D.Seweryniak

Experimental and shell-model study of excited states in 5526Fe29 and related notes on 5529Cu26

NUCLEAR REACTIONS 28Si(32S, n4p)55Fe, E=125 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, γγ(θ)(DCO) using the Gammasphere array for γ detection, 4π Microball system for charged particle detection, and the Neutron Shell array for neutron detection at ANL-ATLAS and LBNL cyclotron facilities. 55Fe; deduced high-spin levels, J, π, multipolarities, dipole structure, configurations. Comparison with shell-model calculations.

NUCLEAR STRUCTURE 55Fe, 55Cu; calculated high-spin levels, J, π, level half-lives, B(E2), B(M1), γ-branching ratios, configurations, occupation numbers relative to 56Ni. Shell-model calculations with KB3G and GXPF1A interactions, with isospin breaking terms, using ANTOINE code. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.044314
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2020GA23      Phys.Lett. B 808, 135637 (2020)

A.Gade, D.Weisshaar, B.A.Brown, J.A.Tostevin, D.Bazin, K.Brown, R.J.Charity, P.J.Farris, A.M.Hill, J.Li, B.Longfellow, W.Reviol, D.Rhodes

In-beam γ-ray spectroscopy at the proton dripline: 40Sc

NUCLEAR REACTIONS 9Be(38Ca, X)40Sc, E=60.9 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π. Comparison with available data.

doi: 10.1016/j.physletb.2020.135637
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2020MU17      Phys.Rev. C 102, 064318 (2020)

C.Muller-Gatermann, A.Dewald, C.Fransen, M.Beckers, A.Blazhev, T.Braunroth, A.Goldkuhle, J.Jolie, L.Kornwebel, W.Reviol, F.von Spee, K.O.Zell

Evolution of collectivity in 118Xe

NUCLEAR REACTIONS 102Pd(19F, 2np)118Xe, E=73 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by recoil-distance Doppler-shift (RDDS) and differential decay-curve method (DDCM) using an array of 11 HPGe detectors and Cologne Coincidence Plunger at the Cologne FN-tandem accelerator. 118Xe; deduced levels, J, π, B(E2). Comparison with theoretical calculations using IBM1 with the ECQF Hamiltonian, and with previous experimental results. Systematics of B(E2) values for the first 2+ and 4+ states for 104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Sn, 108,110,112,114,116,118,120,122,124,126,128,130,132,134Te, 114,116,118,120,122,124,126,128,130,132,134,136Xe.

doi: 10.1103/PhysRevC.102.064318
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2020RU04      Phys.Rev. C 102, 014316 (2020)

D.Rudolph, I.Ragnarsson, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, J.Ekman, C.Fahlander, P.Fallon, W.Reviol, D.G.Sarantites, D.Seweryniak

Single-particle and collective excitations in the N=28 isotones 54Fe and 53Mn

NUCLEAR REACTIONS 28Si(32S, 3pα)53Mn, (32S, 2pα)54Fe, E=125 MeV; measured Eγ, Iγ, E(n), (particle)γ- and γγ-coin, γγ(θ)(DCO) using the Gammasphere array for γ detection, 4π Microball system for charged particle detection, and the Neutron Shell for neutron detection at ANL-ATLAS and LBNL facilities. 53Mn, 54Fe; deduced high-spin levels, J, π, multipolarities, band structures, alignments and configurations. Comparison with cranked Nilsson-Strutinsky calculations, and with large-scale shell model calculations in the fp shell with GXPF1A and KB3G interactions and isospin breaking terms.

doi: 10.1103/PhysRevC.102.014316
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2019CH16      Phys.Rev. C 99, 044304 (2019)

R.J.Charity, K.W.Brown, J.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.Winkelbauer, S.Bedoor, D.G.McNeel, A.H.Wuosmaa

Invariant-mass spectroscopy of 18Ne 16O, and 10C excited states formed in neutron-transfer reactions

NUCLEAR REACTIONS 9Be(17Ne, X), E=58.2 MeV/nucleon;9Be(15O, X), E=48.1 MeV/nucleon, [secondary 17Ne and 15O beams from 9Be(20Ne, X), E=170 MeV primary reaction]; 9Be(9C, X), E=64.6 MeV/nucleon, [secondary 9C beam from 9Be(16O, X), E=150 MeV primary reaction]; measured charged particle spectra, σ(θ), Eγ, Iγ, γ(θ), (particle)γ-coin, excitation-energy spectra with invariant-mass method, center-of-mass velocity distributions, invariant-mass spectroscopy for neutron transfer reactions using the HiRA ΔE-E telescope array for charged particle detection and the CAESAR array for γ detection at NSCL-MSU facility. 10C, 16O, 18Ne; deduced levels, J, π, widths, branching ratios of high-lying states, and IMM fits for A=18 Comparison with theoretical predictions, and with previous experimental results.

doi: 10.1103/PhysRevC.99.044304
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2019CH50      Phys.Rev. C 100, 064305 (2019)

R.J.Charity, K.W.Brown, J.Okolowicz, M.Ploszajczak, J.M.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa

Invariant-mass spectroscopy of 14O excited states

NUCLEAR REACTIONS 9Be(15O, 14O), E=52.1 MeV/nucleon, [secondary 15O beam from 9Be(20Ne, X)15O/17Ne, E=150 MeV/nucleon]; measured reaction products, Eγ, Iγ, (particle)γ-coin using HiRA array for particle detection and CAESAR array for γ rays at the NSCL-MSU facility. 14O; deduced levels, resonances, Jπ, Γ, cross sections and branching ratios for different one-proton and 2-proton emitting channels from excited states in 14O, configuration mixing in resonance spectra. 13N, 12C; deduced levels from 1-proton and 2-proton emissions from excited states in 14O. Comparison with shell model calculations embedded in the continuum (SMEC), treating bound and scattering states in a unified model.

doi: 10.1103/PhysRevC.100.064305
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2018CH25      Phys.Rev. C 97, 054318 (2018)

R.J.Charity, K.W.Brown, J.Okolowicz, M.Ploszajczak, J.M.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa

Spin alignment following inelastic scattering of 17Ne, lifetime of 16F, and its constraint on the continuum coupling strength

NUCLEAR REACTIONS 9Be(17Ne, 17Ne'), E=62.9 MeV/nucleon [17Ne secondary beam from 150 MeV/nucleon 16O primary beam]; measured reaction products, Ep and Ip(θ) of first and second protons in sequential two-proton decay of the second excited state of Jπ=5/2- in 17Ne using the High Resolution Array (HiRA) at NSCL-MSU. 17Ne; deduced excitation-energy spectra reconstructed from 2p+15O events from excited state of 17Ne, magnetic substate probability distribution, distribution of the relative emission angle between the sequential protons, and spin alignment of 17Ne excited state. 16F; deduced invariant mass spectra, widths of the first 0-, 1-, 2-, and 3- resonances, and compared with calculations using shell model embedded in the continuum (SMEC).

RADIOACTIVITY 16F(p)[from proton decay of excited state in 17Ne]; deduced width of the ground state from magnitude of the final-state interactions between the protons emitted by the excited state of 17Ne. Comparison with previous direct measurement of the width of the ground state.

doi: 10.1103/PhysRevC.97.054318
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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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2018LU08      Phys.Rev. C 97, 044312 (2018)

R.S.Lubna, V.Tripathi, S.L.Tabor, P.-L.Tai, K.Kravvaris, P.C.Bender, A.Volya, M.Bouhelal, C.J.Chiara, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, E.A.McCutchan, S.Zhu, R.M.Clark, P.Fallon, A.O.Macchiavelli, S.Paschalis, M.Petri, W.Reviol, D.G.Sarantites

Intruder configurations of excited states in the neutron-rich isotopes 33P and 34P

NUCLEAR REACTIONS 18O(18O, 2np), (18O, np), E=24 MeV; measured Eγ, Iγ, γ(θ), γγ-, pγ-coin using Gammasphere array for γ detection, and 4π Microball scintillator array for charged particle detection at ATLAS-ANL facility. 33,34P; deduced levels, J, π, configurations. Comparison with shell-model calculations using PSDPF interaction.

NUCLEAR STRUCTURE 31,32,33,34,35P; calculated levels, J, π using shell-model with the PSDPF interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.044312
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2018RE09      Phys.Rev. C 98, 014328 (2018)

W.Reviol, D.G.Sarantites, J.M.Elson, J.E.Kinnison, A.Gargano, R.V.F.Janssens, J.M.Allmond, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, H.M.David, A.Galindo-Uribarri, N.Itaco, T.Lauritsen, E.Padilla-Rodal, S.Zhu

Low-spin structure of the N=82 nucleus 137Cs

NUCLEAR REACTIONS 10B(136Xe, 9Be), E=560 MeV; measured Eγ, Iγ, particle spectra, γγ- and (9Be)γ-coin, γ(θ) using Gammasphere array for γ detection and Phoswich Wall array for charged particle detection at ATLAS-ANL. 137Cs; deduced levels, J, π, multipolarities, configurations. Comparison of level spectra with shell-model calculations. Systematics of level energies in N=82 133Sb, 135I, and 137Cs isotones.

doi: 10.1103/PhysRevC.98.014328
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2017BR07      Phys.Rev. C 95, 044326 (2017)

K.W.Brown, R.J.Charity, J.M.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa

Proton-decaying states in light nuclei and the first observation of 17Na

NUCLEAR REACTIONS 9Be(17Ne, 17Na), (17Ne, 17Ne), (17Ne, 16F), E=58 MeV/nucleon, [secondary 17Ne beam from 9Be(20Ne, X), E=170 MeV/nucleon primary reaction at NSCL-MSU accelerator facility]; 9Be(9C, 9C), (9C, 9B), (9C, 8B), E=68 MeV/nucleon, [secondary 9C beam from 9Be(16O, X), E=150 MeV/nucleon primary reaction]; measured charged-particle reaction products using HiRA array of 14 ΔE-E telescopes, and γ rays by CAESAR array of 158 CsI(Na), (particle)γ-coin; analyzed invariant mass spectra, R-matrix fits. 17Na, 17Ne, 16F, 9C, 8,9B; deduced levels, upper limit of mass for 17Na, proton unbound levels, widths, J, π, three-proton decay of 17Na, one- and two-proton decay branches of other nuclei. First identification of unbound 17Na nucleus.

doi: 10.1103/PhysRevC.95.044326
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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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2017TA18      Phys.Rev. C 96, 014323 (2017)

P.-L.Tai, S.L.Tabor, R.S.Lubna, K.Kravvaris, P.C.Bender, V.Tripathi, A.Volya, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, E.A.McCutchan, S.Zhu, R.M.Clark, P.Fallon, S.Paschalis, M.Petri, A.O.Macchiavelli, W.Reviol, D.G.Sarantites

Cross-shell excitations in 31Si

NUCLEAR REACTIONS 18O(18O, nα)31Si, E=24 MeV; measured Eα, Eγ, Iγ, γγ-, αγ-coin using Gammasphere and Microball detector arrays at ATLAS-ANL facility. 31Si; deduced levels, J, π, configurations, radiative decays from neutron-unbound levels. Comparison with resonances observed previously in 30Si(n, n) reaction, and with shell-model calculations using USDA and WBP cross-shell interactions.

NUCLEAR STRUCTURE 29,31,33Si; calculated levels, J, π using shell model with the WBP-b interaction. Comparison with experimental data. 30Si(d, p)31Si; calculated single-neutron spectroscopic factors using the USDA (WBP-b) interaction, and compared with experimental data.

doi: 10.1103/PhysRevC.96.014323
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2016RE15      Phys.Rev. C 94, 034309 (2016)

W.Reviol, D.G.Sarantites, J.M.Elson, J.E.Kinnison, A.Gargano, S.Bottoni, R.V.F.Janssens, J.M.Allmond, A.D.Ayangeakaa, M.P.Carpenter, H.M.David, A.Galindo-Uribarri, N.Itaco, T.Lauritsen, E.Padilla-Rodal, S.Zhu

One-neutron transfer study of 137Xe and systematics of 13/2+1 and 13/2+2 levels in N=83 nuclei

NUCLEAR REACTIONS 13C(136Xe, 12C)137Xe, 9Be(136Xe, 8Be)137Xe, E=560 MeV; measured particle spectra, Eγ, Iγ, γ(θ), (particle)γ-, (particle)γγ-coin using Phoswich Wall and Digital Gammasphere arrays at ATLAS-ANL facility. 137Xe; deduced levels, J, π, multipolarity, relative yields. One-neutron transfer reactions. Comparison with systematics of first and second 13/2+ states in N=83 isotones, and with shell-model calculations. 135,137Xe, 137Cs, 139,140Ba, 142Ce; observed γ rays from contaminants.

doi: 10.1103/PhysRevC.94.034309
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2016RU03      Phys.Rev. C 94, 034608 (2016)

P.Russotto, S.Gannon, S.Kupny, P.Lasko, L.Acosta, M.Adamczyk, A.Al-Ajlan, M.Al-Garawi, S.Al-Homaidhi, F.Amorini, L.Auditore, T.Aumann, Y.Ayyad, Z.Basrak, J.Benlliure, M.Boisjoli, K.Boretzky, J.Brzychczyk, A.Budzanowski, C.Caesar, G.Cardella, P.Cammarata, Z.Chajecki, M.Chartier, A.Chbihi, M.Colonna, M.D.Cozma, B.Czech, E.De Filippo, M.Di Toro, M.Famiano, I.Gasparic, L.Grassi, C.Guazzoni, P.Guazzoni, M.Heil, L.Heilborn, R.Introzzi, T.Isobe, K.Kezzar, M.Kis, A.Krasznahorkay, N.Kurz, E.La Guidara, G.Lanzalone, A.Le Fevre, Y.Leifels, R.C.Lemmon, Q.F.Li, I.Lombardo, J.Lukasik, W.G.Lynch, P.Marini, Z.Matthews, L.May, T.Minniti, M.Mostazo, A.Pagano, E.V.Pagano, M.Papa, P.Pawlowski, S.Pirrone, G.Politi, F.Porto, W.Reviol, F.Riccio, F.Rizzo, E.Rosato, D.Rossi, S.Santoro, D.G.Sarantites, H.Simon, I.Skwirczynska, Z.Sosin, L.Stuhl, W.Trautmann, A.Trifiro, M.Trimarchi, M.B.Tsang, G.Verde, M.Veselsky, M.Vigilante, Y.Wang, A.Wieloch, P.Wigg, J.Winkelbauer, H.H.Wolter, P.Wu, S.Yennello, P.Zambon, L.Zetta, M.Zoric

Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density

NUCLEAR REACTIONS 197Au(197Au, X), E=400 MeV/nucleon; measured directed and elliptic flow of neutrons and charged particles as a function of rapidity and transverse momentum in central and semi-central collisions using Large Area Neutron Detector (LAND), parts of CHIMERA multidetector, ALADIN Time-of-flight Wall, KRATTA telescopes, and Washington University Microball detector as part of ASY-EOS experimental campaign at GSI facility; deduced density dependence of nuclear symmetry energy, equation-of-state (EOS) of neutron-rich matter. Comparison with UrQMD transport model calculations.

doi: 10.1103/PhysRevC.94.034608
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2015BR11      Phys.Rev. C 92, 034329 (2015)

K.W.Brown, R.J.Charity, L.G.Sobotka, L.V.Grigorenko, T.A.Golubkova, S.Bedoor, W.W.Buhro, Z.Chajecki, J.M.Elson, W.G.Lynch, J.Manfredi, D.G.McNeel, W.Reviol, R.Shane, R.H.Showalter, M.B.Tsang, J.R.Winkelbauer, A.H.Wuosmaa

Interplay between sequential and prompt two-proton decay from the first excited state of 16Ne

NUCLEAR REACTIONS 9Be(17Ne, 16Ne), E=57.6 MeV/nucleon; analyzed results of experimental measurements reported in their 2014Br19 work carried out at NSCL-MSU. 16Ne; analyzed relative energy spectra and few-body correlations of 14O+2p and 13N+3p events; deduced level energies and widths of g.s. and first 2+ state from kinematic analysis of 14O+p+p events, and those of higher levels from analysis of the 13N+p+p+p events. Sequential and diprotonlike decays deduced from correlation pattern reproduced in three-body 14O+p+p calculations. 15F, 14O, 13N; deduced levels, J, π from particle decays of states in 16Ne.

doi: 10.1103/PhysRevC.92.034329
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2014BR15      Phys.Rev. C 90, 027304 (2014)

K.W.Brown, W.W.Buhro, R.J.Charity, J.M.Elson, W.Reviol, L.G.Sobotka, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa

Two-proton decay from the isobaric analog state in 8B

NUCLEAR REACTIONS 9Be(9C, 8B), E=68 MeV/nucleon, [9C secondary beam from 9Be(16O, X), E=150 MeV/nucleon primary fragmentation reaction]; measured Ep, Ip, 6Li-p-p correlated events from IAS of 8C g.s. in 8B by analyzing complete kinematics of 2p+6Li decay products, gamma decay of IAS in 6Li; deduced isospin-allowed 2p decay between isobaric analog states, three-body energy and angular correlations, branching ratios. Experiments carried out at NSCL-MSU facility using A1900 fragment separator and High Resolution Array of Si-CsI(Tl) telescopes.

doi: 10.1103/PhysRevC.90.027304
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2014BR19      Phys.Rev.Lett. 113, 232501 (2014)

K.W.Brown, R.J.Charity, L.G.Sobotka, Z.Chajecki, L.V.Grigorenko, I.A.Egorova, Yu.L.Parfenova, M.V.Zhukov, S.Bedoor, W.W.Buhro, J.M.Elson, W.G.Lynch, J.Manfredi, D.G.McNeel, W.Reviol, R.Shane, R.H.Showalter, M.B.Tsang, J.R.Winkelbauer, A.H.Wuosmaa

Observation of Long-Range Three-Body Coulomb Effects in the Decay of 16Ne

RADIOACTIVITY 16Ne(2p) [from Be(17Ne, X), E=57.6 MeV/nucleon]; measured decay products, Ep, Ip; deduced resonance width limit, correlations between the momenta of the three decay products, dependence on the long-range nature of the Coulomb interaction. Comparison with theoretical calculations, available data.

doi: 10.1103/PhysRevLett.113.232501
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2014RE12      Phys.Rev. C 90, 044318 (2014)

W.Reviol, R.V.F.Janssens, S.Frauendorf, D.G.Sarantites, M.P.Carpenter, X.Chen, C.J.Chiara, D.J.Hartley, K.Hauschild, T.Lauritsen, A.Lopez-Martens, M.Montero, O.L.Pechenaya, D.Seweryniak, J.B.Snyder, S.Zhu

Characterization of octupole-type structures in 221Th

NUCLEAR REACTIONS 207Pb(18O, 4n), E=96 MeV; measured Eγ, Iγ, γγ-, (evaporation residues)γ-coin, γ(θ) using Gammasphere and HERCULES detector arrays at ATLAS-ANL facility. 221Th; deduced high-spin levels, J, π, multipolarity, mixing ratio, bands, alternating-parity sequences and multiple octupole structures, B(E1)/B(E2) and B(M1)/B(E2) ratios, alignment plots. Systematics of octupole structures, parity splitting, and other properties in 218,219,220,221,222Ra, 219,220,221,222,223,224Th.

doi: 10.1103/PhysRevC.90.044318
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2013CH19      Phys.Rev. C 87, 044305 (2013)

X.Chen, D.G.Sarantites, W.Reviol, J.Snyder

Time-dependent Monte Carlo calculations of recoil-in-vacuum g-factor data for 122, 126, 130, 132Te

NUCLEAR MOMENTS 122,126,130,132Te; calculated charge-state distributions of atomic states, attenuation coefficients Gk versus g factor distributions for recoil-in vacuum (RIV) methods. Monte Carlo simulations based on time-dependent attenuation using GRASP2K computer for excited atomic states; deduced g factors of first 2+ states. Comparison of deduced g factors with previous experimental values, and with various nuclear-model calculations.

doi: 10.1103/PhysRevC.87.044305
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2013SN01      Phys.Lett. B 723, 61 (2013)

J.B.Snyder, W.Reviol, D.G.Sarantites, A.V.Afanasjev, R.V.F.Janssens, H.Abusara, M.P.Carpenter, X.Chen, C.J.Chiara, J.P.Greene, T.Lauritsen, E.A.McCutchan, D.Seweryniak, S.Zhu

High-spin transition quadrupole moments in neutron-rich Mo and Ru nuclei: Testing γ softness?

RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ. 102,104,106,108Mo, 108,110,112Ru; deduced energy levels, J, π, kinematic and dynamic moments of inertia, B(E2), transition quadrupole moments, potential energy surfaces. Comparison with available data.

doi: 10.1016/j.physletb.2013.04.046
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2012AL13      Phys.Rev. C 86, 031307 (2012)

J.M.Allmond, D.C.Radford, J.Pavan, K.Lagergren, C.Baktash, J.R.Beene, C.R.Bingham, L.Chaturvedi, M.Danchev, D.Fong, A.Galindo-Uribarri, P.A.Hausladen, J.K.Hwang, W.Krolas, J.F.Liang, E.Padilla-Rodal, W.Reviol, D.G.Sarantites, D.Seweryniak, D.Shapira, A.E.Stuchbery, J.P.Urrego-Blanco, R.L.Varner, X.Wang, C.-H.Yu, S.Zhu

One-neutron transfer study of 135Te and 137Xe by particle-γ coincidence spectroscopy: The ν1i13/2 state at N=83

NUCLEAR REACTIONS 13C(134Te, 12C), (134Te, 13C'), (134Te, 14C), E=565 MeV; 9Be(134Te, 8Be), E=565 MeV; 13C(136Xe, 12C), E=560 MeV; 9Be(136Xe, 8Be), E=560 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-, (particle)γγ-coin, (12C)γ(θ) using HyBall and Clarion arrays as HRIBF facility in ORNL for 134Te beam, and Gammasphere + Microball arrays at ATLAS facility in ANL for 136Xe beam. 134,135Te, 137Xe; deduced levels, J, π, σ, multipolarity. Comparison of measured σ with DWBA predictions, i13/2 states. Z=50-70, N=82, 83; systematics of energies of first 3-, 7/2- and 13/2+ states for even Z nuclei.

doi: 10.1103/PhysRevC.86.031307
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2012BE11      Phys.Rev. C 85, 044305 (2012)

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

Multi-intruder structures in 34P

NUCLEAR REACTIONS 18O(18O, np), E=24 MeV; measured Eγ, Iγ, γ(θ), γγ-, (proton)γ-coin, half-lives by DSA using Gammasphere array and Microball. 34P; deduced levels, J, π, branching ratios, multipolarity, mixing ratio, B(M1), B(E1), B(E2), B(M2), B(E3) strengths. Comparisons with shell-model calculations.

doi: 10.1103/PhysRevC.85.044305
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2012DE05      Phys.Rev. C 85, 034320 (2012)

G.de Angelis, K.T.Wiedemann, T.Martinez, R.Orlandi, A.Petrovici, E.Sahin, J.J.Valiente-Dobon, D.Tonev, S.Lunardi, B.S.Nara Singh, R.Wadsworth, A.Gadea, K.Kaneko, P.G.Bizzeti, A.M.Bizzeti-Sona, B.Blank, A.Bracco, M.P.Carpenter, C.J.Chiara, E.Farnea, A.Gottardo, J.P.Greene, S.M.Lenzi, S.Leoni, C.J.Lister, D.Mengoni, D.R.Napoli, O.L.Pechenaya, F.Recchia, W.Reviol, D.G.Sarantites, D.Seweryniak, C.A.Ur, S.Zhu

Shape isomerism and shape coexistence effects on the Coulomb energy differences in the N=Z nucleus 66As and neighboring T=1 multiplets

NUCLEAR REACTIONS 40Ca(32S, npα)66As, E=90 MeV; measured Eγ, Iγ, γ(θ), angular asymmetry ratios, (particle)nγ-, γγ-coin, particle and neutron spectra, isomer half-life using Gammasphere array at ATLAS facility. 66As; deduced levels, J, π, shape isomer, B(E2), isospin=1 states, Coulomb energy differences (CED); calculated neutron single-particle energies. Breaking of isospin symmetry and correlations induced by the Coulomb interaction. Comparison with shell model and Complex excited Vampir calculations.

doi: 10.1103/PhysRevC.85.034320
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2012GE04      Phys.Rev. C 86, 034304 (2012)

J.Gellanki, D.Rudolph, I.Ragnarsson, L.-L.Andersson, C.Andreoiu, M.P.Carpenter, J.Ekman, C.Fahlander, E.K.Johansson, A.Kardan, W.Reviol, D.G.Sarantites, D.Seweryniak, C.E.Svensson, J.C.Waddington

Extensive γ-ray spectroscopy of band structures in 3062Zn32

NUCLEAR REACTIONS 28Si(36Ar, 2p), E AP 140 MeV; 40Ca(28Si, 2pα), E=122 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin, γγ(θ)(DCO). 62Zn; deduced levels, J, π, normal deformation, well-deformed, terminating and superdeformed bands, multipolarity, mixing ratio, alignments, configurations. Comparison with cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.86.034304
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2012GE07      Phys.Scr. T150, 014013 (2012)

J.Gellanki, D.Rudolph, I.Ragnarsson, L.-L.Andersson, C.Andreoiu, M.P.Carpenter, J.Ekman, C.Fahlander, E.K.Johansson, W.Reviol, D.G.Sarantites, D.Seweryniak, C.E.Svensson

High-spin structure studies in 62Zn

NUCLEAR REACTIONS 40Ca(28Si, 2pα)62Zn, E=122 MeV; 28Si(36Ar, 2p)62Zn, E≈140 MeV; measured reaction products, Eγ, Iγ; deduced level scheme, J, π, multipolarities, rotational bands. Comparison with cranked Nilsson-Strutinsky calculations.

doi: 10.1088/0031-8949/2012/T150/014013
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2012WA16      Phys.Rev. C 85, 057302 (2012)

J.C.Walpe, U.Garg, S.Naguleswaran, J.Wei, W.Reviol, I.Ahmad, M.P.Carpenter, T.L.Khoo

Lifetime measurements in 182, 186Pt

NUCLEAR REACTIONS 154Sm(36S, 4n)186Pt, E=167 MeV; 122Sn(64Ni, 4n)182Pt, E=295 MeV; measured Eγ, Iγ, half-lives of levels in ground-state band by recoil distance Doppler-shift (RDDS) method. 182,186Pt; deduced levels, B(E2), transition quadrupole moments. Comparison with band-mixing calculations.

doi: 10.1103/PhysRevC.85.057302
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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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2011RE04      Acta Phys.Pol. B42, 671 (2011)

W.Reviol, D.G.Sarantites, X.Chen, M.Montero, O.L.Pechenaya, J.Snyder, R.V.F.Janssens, M.P.Carpenter, C.J.Chiara, T.L.Khoo, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, K.Hauschild, A.Lopez-Martens, D.J.Hartley, S.Frauendorf

Tidal Waves and Onset of Collectivity above N = 126

NUCLEAR REACTIONS 198Pt(26Mg, X)219Th/220Th, E=128 MeV; 207Pb(18O, X)218Ra/221Th, E=96 MeV; measured reaction products, Eγ, Iγ, ER nucleus-γ-coin.; deduced level scheme, B(E1)/B(E2) ratios as a function of spin, tidal-wave concept.

doi: 10.5506/APhysPolB.42.671
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2011WA12      Phys.Lett. B 701, 306 (2011)

R.Wadsworth, I.Ragnarsson, B.G.Carlsson, H.-L.Ma, P.J.Davies, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, S.J.Freeman, P.E.Garrett, J.Greene, A.Gorgen, D.G.Jenkins, F.Johnston-Theasby, P.Joshi, A.O.Macchiavelli, F.Moore, G.Mukherjee, W.Reviol, D.G.Sarantites, D.Seweryniak, C.E.Svensson, J.J.Valiente-Dobon

Evidence for shape coexistence at medium spin in 76Rb

NUCLEAR REACTIONS 40Ca(40Ca, n3p)76Rb, E=165 MeV; measured reaction products, Eγ, Iγ, γ-γ-γ-coin.; deduced rotational bands, energies, J, π, negative-parity bands, oblate and prolate shape coexistence. Cranked Nilsson-Strutinsky model calculations.

doi: 10.1016/j.physletb.2011.06.006
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2010DA19      Phys.Rev. C 82, 061303 (2010)

P.J.Davies, A.V.Afanasjev, R.Wadsworth, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, J.Greene, G.F.Grinyer, B.Hyland, D.G.Jenkins, F.L.Johnston-Theasby, P.Joshi, A.O.Macchiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, D.Ward

Evidence of nontermination of collective rotation near the maximum angular momentum in 75Rb

NUCLEAR REACTIONS 40Ca(40Ca, pα), E=165 MeV; measured Eγ, Iγ, γγ-coin, level half-lives with residual Doppler attenuation method using Gammasphere array. 75Kr; deduced transition quadrupole moments for two rotational bands from measured half-lives. Comparison with data for bands in 74Kr and 109Sb. Cranked Nilsson-Strutinsky (CNS) and cranked relativistic mean field (CRMF) calculations.

doi: 10.1103/PhysRevC.82.061303
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2010RU01      J.Phys.(London) G37, 075105 (2010)

D.Rudolph, I.Ragnarsson, W.Reviol, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, M.Cromaz, J.Ekman, C.Fahlander, P.Fallon, E.Ideguchi, A.O.Macchiavelli, M.N.Mineva, D.G.Sarantites, D.Seweryniak, S.J.Williams

Rotational bands in the semi-magic nucleus 5728Ni29

NUCLEAR REACTIONS 28Si(32S, n2p)57Ni, E=130 MeV; measured Eγ, Iγ, γ-γ-coins.; deduced high-spin states, superdeformed rotational bands. Cranked Nilsson-Strutinsky calculations, GAMMASPHERE.

doi: 10.1088/0954-3899/37/7/075105
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2010RU10      Phys.Rev. C 82, 054309 (2010)

D.Rudolph, L.-L.Andersson, R.Bengtsson, J.Ekman, O.Erten, C.Fahlander, E.K.Johansson, I.Ragnarsson, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, P.Fallon, A.O.Macchiavelli, W.Reviol, D.G.Sarantites, D.Seweryniak, C.E.Svensson, S.J.Williams

Isospin and deformation studies in the odd-odd N=Z nucleus 54Co

NUCLEAR REACTIONS 28Si(32S, npα), E=130 MeV; measured Eγ, Iγ, γγ-, αγ-, nγ-, pγ-coin, γγ(θ) using Gammasphere and Microball arrays. 54Co; deduced levels, J, π, multipolarities, mixing ratios, configurations. Comparison with large-scale shell-model calculations in the fp shell.

doi: 10.1103/PhysRevC.82.054309
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2009AN01      Phys.Rev. C 79, 024312 (2009)

L.-L.Andersson, I.Ragnarsson, D.Rudolph, E.K.Johansson, D.A.Torres, C.Andreoiu, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, C.Hoel, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, S.Zhu

Comprehensive γ-ray spectroscopy of rotational bands in the N = Z + 1nucleus 61Zn

NUCLEAR REACTIONS 36Ar(28Si, n2p), E=142, 148 MeV; measured Eγ, Iγ, γγ-coin, neutron and particle spectra. 61Zn; deduced levels, J, π, multipolarity, bands. Comparison with Cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.79.024312
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2009GE14      Phys.Rev. C 80, 051304 (2009)

J.Gellanki, I.Ragnarsson, D.Rudolph, C.E.Svensson, L.-L.Andersson, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Eberth, J.Ekman, C.Fahlander, D.S.Haslip, E.K.Johansson, D.R.LaFosse, S.D.Paul, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, H.G.Thomas, D.A.Torres, J.C.Waddington, J.N.Wilson, C.H.Yu, S.Zhu

Characterization of superdeformed bands in 62Zn

NUCLEAR REACTIONS 28Si(36Ar, 2p), E=140 MeV; 40Ca(28Si, 2pα), E=122 MeV; measured Eγ, Iγ, γγ-coin, DCO using Gammasphere array. 62Zn; deduced levels, J, π, moment of inertia, configurations. Comparison with cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.80.051304
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2009JO03      Phys.Rev. C 80, 014321 (2009)

E.K.Johansson, D.Rudolph, I.Ragnarsson, L.-L.Andersson, D.A.Torres, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, C.H.Yu, S.Zhu

Thorough γ-ray and particle decay investigations of 58Ni

NUCLEAR REACTIONS 28Si(36Ar, 2pα), E=136, 143, 148 MeV; measured Eγ, Iγ, Ep, Ip, Eα, (particle)γ-, nγ-, pγ-, αγ-, γγ-coin, γγ(θ), DCO. 58Ni; deduced levels, J, π, multipolarity, mixing ratio, bands and configurations. 57Co, 54Fe; deduced levels, J, π from prompt proton and α emission from 58Ni high-spin states. Comparison with large-scale shell model and cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.80.014321
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2009OR02      Phys.Rev.Lett. 103, 052501 (2009)

R.Orlandi, G.de Angelis, P.G.Bizzeti, S.Lunardi, A.Gadea, A.M.Bizzeti-Sona, A.Bracco, F.Brandolini, M.P.Carpenter, C.J.Chiara, F.Della Vedova, E.Farnea, J.P.Greene, S.M.Lenzi, S.Leoni, C.J.Lister, N.Marginean, D.Mengoni, D.R.Napoli, B.S.Nara Singh, O.L.Pechenaya, F.Recchia, W.Reviol, E.Sahin, D.G.Sarantites, D.Seweryniak, D.Tonev, C.A.Ur, J.J.Valiente-Dobon, R.Wadsworth, K.T.Wiedemann, S.Zhu

Coherent Contributions to Isospin Mixing in the Mirror Pair 67As and 67Se

NUCLEAR REACTIONS 40Ca(32S, αp), (32S, αn), E=90 MeV; measured Eγ, Iγ, γγγ-coin., particle-γγ-coin.; deduced partial level schemes, lifetimes of the excited states, B(E1), B(M2), isovector and isoscalar components of electromagnetic transition amplitudes.

doi: 10.1103/PhysRevLett.103.052501
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2009RE09      Phys.Rev. C 80, 011304 (2009)

W.Reviol, D.G.Sarantites, C.J.Chiara, M.Montero, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, O.L.Pechenaya, S.G.Frauendorf

Parity doubling in 219Th and the onset of collectivity above N=126

NUCLEAR REACTIONS 198Pt(26Mg, 5n), E=128 MeV; measured Eγ, Iγ, γγ-coin, γγ(linear pol). 219Th; deduced levels, J, π, bands and Quadrupole-octupole collectivity. Comparison with level structure of 217Ra.

doi: 10.1103/PhysRevC.80.011304
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2008AN06      Eur.Phys.J. A 36, 251 (2008)

L.-L.Andersson, D.Rudolph, E.K.Johansson, D.A.Torres, B.G.Carlsson, I.Ragnarsson, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, C.Hoel, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, C.H.Yu, S.Zhu

Extensive γ-ray spectroscopy of normally and superdeformed structures in 6129Cu32

NUCLEAR REACTIONS 28Si(36Ar, 3p), E=142, 143, 148 MeV; measured Eγ, Iγ, En, In, charged-particle spectra, (proton)γ-, γγ-coin. 61Cu deduced energy levels, J, π, band structure, configurations, transition intensities and multipolarities using directional correlations of oriented states analysis. Comparison with shell model and cranked Nilsson-Strutinsky calculations. Gammasphere and Microball arrays. Enriched target.

doi: 10.1140/epja/i2008-10590-9
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2008HA39      Phys.Rev. C 78, 054319 (2008); Publishers Note Phys.Rev. C 78, 069901 (2008)

D.J.Hartley, E.P.Seyfried, W.Reviol, D.G.Sarantites, C.J.Chiara, O.L.Pechenaya, K.Hauschild, A.Lopez-Martens, M.P.Carpenter, R.V.F.Janssens, D.Seweryniak, S.Zhu

Possible shears bands in 204At and 206Fr, and identification of excited states in 205, 207Fr

NUCLEAR REACTIONS 181Ta(30Si, X), E=152 MeV; measured Eγ, Iγ, γγ-coin.204At, 205,206,207Fr; deduced levels, J, π, B(M1), B(E2), magnetic rotational bands. 202,204,206,208,210,212,214,216,218,220,222Rn; 205,207,209,211,213,215,217,219,221,223Fr, 206,208,210,212,214,216,218,220,222,224Fr; energy systematics. 205Rn, 198,199,200,201,202Bi, 197,198,199,200,201Pb; systematics of spin and rotational energy.

doi: 10.1103/PhysRevC.78.054319
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2008JO04      Phys.Rev. C 77, 064316 (2008)

E.K.Johansson, D.Rudolph, L.-L.Andersson, D.A.Torres, I.Ragnarsson, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, C.Hoel, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, C.H.Yu, S.Zhu

Prompt proton decay and deformed bands in 56Ni

NUCLEAR REACTIONS 28Si(36Ar, 2α), E=142, 143, 148 MeV; measured Eγ, Iγ, γγ-coin, angular distributions, multipolarities. 56Ni; deduced levels, J, π, bands, deformation parameters. Comparison with cranked Nilsson-Strutinsky calculations.

RADIOACTIVITY 56Ni(p); measured proton spectra. 55Co; deduced levels, J, π.

doi: 10.1103/PhysRevC.77.064316
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2008JO07      Phys.Rev. C 78, 034312 (2008)

F.Johnston-Theasby, A.V.Afanasjev, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, S.J.Freeman, P.E.Garrett, J.Greene, A.Gorgen, D.G.Jenkins, P.Joshi, A.O.Macchiavelli, F.Moore, G.Mukherjee, W.Reviol, D.Sarantites, D.Seweryniak, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, R.Wadsworth, D.Ward

Deformation of rotational structures in 73Kr and 74Rb: Probing the additivity principle at triaxial shapes

NUCLEAR REACTIONS 40Ca(40Ca, n2pα), (40Ca, npα), E=165 MeV; measured Eγ, Iγ, electric quadrupole moments, half-lives using residual doppler shift method. 73Kr, 74Rb; deduced levels, J, π, bands, transition quadrupole moments, configurations. Comparisons with cranked Nilsson-Strutinsky and relativistic mean-field calculations.

doi: 10.1103/PhysRevC.78.034312
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2008PE26      Phys.Rev. C 78, 039804 (2008)

O.L.Pechenaya, D.G.Sarantites, W.Reviol, C.J.Chiara, R.V.F.Janssens, C.J.Lister, D.Seweryniak

Reply to "Comment on "Level structure of 92Rh: Implications for the two-proton decay of 94Agm"

doi: 10.1103/PhysRevC.78.039804
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2008TO15      Phys.Rev. C 78, 054318 (2008)

D.A.Torres, F.Cristancho, L.-L.Andersson, E.K.Johansson, D.Rudolph, C.Fahlander, J.Ekman, R.du Rietz, C.Andreoiu, M.P.Carpenter, D.Seweryniak, S.Zhu, R.J.Charity, C.J.Chiara, C.Hoel, O.L.Pechenaya, W.Reviol, D.G.Sarantites, L.G.Sobotka, C.Baktash, C.-H.Yu, B.G.Carlsson, I.Ragnarsson

Deformations and magnetic rotations in the 60Ni nucleus

NUCLEAR REACTIONS 28Si(36Ar, 4p), E=134, 143, 148 MeV; measured Eγ, Iγ, γγ-coin, angular distributions. 60Ni; deduced levels, J, π, multipolarity, mixing ratios, B(M1), B(E2). Comparison with cranked Nilsson Strutinsky calculations.

doi: 10.1103/PhysRevC.78.054318
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2008VA03      Phys.Rev. C 77, 024312 (2008)

J.J.Valiente-Dobon, C.E.Svensson, A.V.Afanasjev, I.Ragnarsson, C.Andreoiu, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, D.Dashdorj, P.Fallon, S.J.Freeman, P.E.Garrett, A.Gorgen, G.F.Grinyer, D.F.Hodgson, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, D.Mengoni, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.C.Waddington, R.Wadsworth, D.Ward

Low-spin lifetime measurements in 74Kr

NUCLEAR REACTIONS 40Ca(40Ca, 2pα), E=165 MeV; measured Eγ, Iγ, half-lives, transition quadrupole moments. 74Kr; deduced excitation energies, rotational bands.

doi: 10.1103/PhysRevC.77.024312
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2007AN12      Phys.Rev. C 75, 041301 (2007); Erratum Phys.Rev. C 75, 049901 (2007)

C.Andreoiu, C.E.Svensson, A.V.Afanasjev, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, P.Finlay, S.J.Freeman, P.E.Garrett, J.Greene, G.F.Grinyer, A.Gorgen, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, A.O.Machiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.G.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.J.Valiente-Dobon, R.Wadsworth

High-spin lifetime measurements in the N = Z nucleus 72Kr

NUCLEAR REACTIONS 40Ca(40Ca, 2α), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 72Kr deduced high-spin levels, J, π, T1/2. Gammasphere, Microball arrays. Doppler shift attenuation method, compared results to isovector mean field theory calculations.

doi: 10.1103/PhysRevC.75.041301
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2007CH40      Phys.Rev. C 75, 054305 (2007); Publisher's note Phys. Rev. C 75, 059904 (2007)

C.J.Chiara, M.Devlin, E.Ideguchi, D.R.LaFosse, F.Lerma, W.Reviol, S.K.Ryu, D.G.Sarantites, O.L.Pechenaya, C.Baktash, A.Galindo-Uribarri, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, P.Reiter, D.Seweryniak, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Rudolph, G.Stoitcheva, W.E.Ormand

Probing sd-fp cross-shell interactions via terminating configurations in 42, 43Sc

NUCLEAR REACTIONS 28Si(20Ne, X)42Sc, 28Si(20Ne, X)43Sc, E=84 MeV; 24Mg(24Mg, X)42,43Sc, E=94 MeV; measured Eγ, Iγ, γγ-, (charged-particle)γ- coinc, angular distributions using the Gammasphere. Deduced level energies, J, π, high-spin and high-energy extension of level scheme.

doi: 10.1103/PhysRevC.75.054305
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2007DA04      Phys.Rev. C 75, 011302 (2007)

P.J.Davies, A.V.Afanasjev, R.Wadsworth, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, S.J.Freeman, P.E.Garrett, A.Gorgen, J.Greene, D.G.Jenkins, F.L.Johnston-Theasby, P.Joshi, A.O.Macchiavelli, F.Moore, G.Mukherjee, W.Reviol, D.Sarantites, D.Seweryniak, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, D.Ward

Identification of the g9/2 proton and neutron band crossing in the N = Z nucleus 76Sr

NUCLEAR REACTIONS 40Ca(40Ca, 2n2p), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 76Sr deduced high-spin levels, J, π, configurations. Gammasphere, Microball arrays, comparison with model predictions.

doi: 10.1103/PhysRevC.75.011302
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2007KO43      Phys.Rev. C 75, 064611 (2007)

S.Komarov, R.J.Charity, C.J.Chiara, W.Reviol, D.G.Sarantites, L.G.Sobotka, A.L.Caraley, M.P.Carpenter, D.Seweryniak

Search for the fade out of a collective enhancement of the nuclear level density

NUCLEAR REACTIONS 160Gd(18O, X)178Hf, E=79-156 MeV; measured Eα, Eγ, particle γ-coinc. Deduced total cross sections for xn channels. Compared results to model calculations.

doi: 10.1103/PhysRevC.75.064611
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2007PE14      Phys.Rev. C 76, 011304 (2007)

O.L.Pechenaya, C.J.Chiara, D.G.Sarantites, W.Reviol, R.J.Charity, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, L.-L.Andersson, E.K.Johansson, D.Rudolph

Level structure of 92Rh: Implications for the two-proton decay of 94Agm

NUCLEAR REACTIONS 40Ca(58Ni, npα), E=240 MeV; measured Eγ, Iγ, γγ-coinc, (particle)γ-coinc. 92Rh deduced levels, J, π.

doi: 10.1103/PhysRevC.76.011304
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2007RE14      Acta Phys.Pol. B38, 1547 (2007)

W.Reviol, D.G.Sarantites, C.J.Chiara, M.Montero, O.L.Pechenaya

In-Beam Spectroscopy in the Actinide Region Using an Evaporation Residue Detector

NUCLEAR REACTIONS 198Pt(26Mg, X)224Th, E=128 MeV; measured Eγ, Iγ, γγ-coinc, (particle)γ-coinc. 219,220Th deduced levels, J, π.


2006AN35      Phys.Scr. T125, 127 (2006)

C.Andreoiu, C.E.Svensson, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, J.Greene, G.F.Grinyer, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, A.O.Machiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.G.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.J.Valiente-Dobon, R.Wadsworth

Lifetime measurements in N=Z 72Kr

NUCLEAR REACTIONS 40Ca(40Ca, 2α), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 72Kr deduced high-spin levels, J, π, configurations, transition quadrupole moments, T1/2. Gammasphere, Microball arrays.

doi: 10.1088/0031-8949/2006/T125/029
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2006CH09      Phys.Rev. C 73, 021301 (2006)

C.J.Chiara, D.G.Sarantites, M.Montero, J.O'Brien, W.Reviol, O.L.Pechenaya, R.M.Clark, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Ward, Y.R.Shimizu, W.Satula

Decay-out properties of a linked superdeformed band in 84Zr

NUCLEAR REACTIONS 58Ni(32S, 2pα), E=140 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 84Zr deduced high-spin levels, J, π, superdeformed bands, linking transitions. Gammasphere, Microball arrays. Potential energy surface calculations.

doi: 10.1103/PhysRevC.73.021301
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2006CH57      Phys.Scr. T125, 119 (2006)

C.J.Chiara, D.G.Sarantites, M.Montero, J.O'Brien, W.Reviol, O.L.Pechenaya, R.M.Clark, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Ward, W.Satula, Y.R.Shimizu

Linking transitions in the A ≈ 80 region of superdeformation

NUCLEAR REACTIONS 58Ni(32S, 2pα), E=140 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 84Zr deduced superdeformed band transitions, linking transitions to normal-deformed states. Gammasphere, Microball arrays.

doi: 10.1088/0031-8949/2006/T125/027
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2006FI08      Phys.Rev. C 74, 054304 (2006)

S.M.Fischer, C.J.Lister, N.J.Hammond, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, E.F.Moore, D.Seweryniak, S.Sinha, D.P.Balamuth, P.A.Hausladen, D.G.Sarantites, W.Reviol, P.Chowdhury, S.D.Paul, C.Baktash, C.-H.Yu

T = 1 states in 74Rb and their 74Kr analogs

NUCLEAR REACTIONS 40Ca(40Ca, npα), E=123, 160 MeV; 40Ca(36Ar, np), E=108 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 74Rb deduced high-spin levels, J, π, configurations, analog states features. Gammasphere, Microball arrays, mass separator.

doi: 10.1103/PhysRevC.74.054304
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2006JO03      Eur.Phys.J. A 27, 157 (2006)

E.K.Johansson, D.Rudolph, J.Ekman, C.Fahlander, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, P.Fallon, R.V.F.Janssens, F.G.Kondev, T.L.Khoo, T.Lauritsen, A.O.Macchiavelli, W.Reviol, D.G.Sarantites, D.Seweryniak, C.E.Svensson, S.J.Williams

Gamma-ray spectroscopy of the doubly magic nucleus 56Ni

NUCLEAR REACTIONS 40Ca(28Si, 3α), E=122 MeV; 28Si(32S, 2n2p), E=130 MeV; measured Eγ, Iγ, (charged particle)γ-, (neutron)γ-, γγ-coin. 56Ni deduced levels, J, π, configurations. Shell model calculations, Gammasphere and Microball arrays.

doi: 10.1140/epja/i2005-10259-y
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2006RE15      Phys.Rev. C 74, 044305 (2006)

W.Reviol, C.J.Chiara, M.Montero, D.G.Sarantites, O.L.Pechenaya, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, S.G.Frauendorf

Multiple octupole-type band structures in 220Th: Reflection-asymmetric tidal waves?

NUCLEAR REACTIONS 198Pt(26Mg, 4n), E=128 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 220Th deduced high-spin levels, J, π, B(E1)/B(E2). Gammasphere array.

doi: 10.1103/PhysRevC.74.044305
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2006RU02      Phys.Rev.Lett. 96, 092501 (2006)

D.Rudolph, B.G.Carlsson, I.Ragnarsson, S.Aberg, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, M.Cromaz, J.Ekman, C.Fahlander, P.Fallon, E.Ideguchi, A.O.Macchiavelli, M.N.Mineva, W.Reviol, D.G.Sarantites, D.Seweryniak, S.J.Williams

58Ni: An Unpaired Band Crossing at New Heights of Angular Momentum for Rotating Nuclei

NUCLEAR REACTIONS 28Si(32S, 2p), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 58Ni deduced high-spin levels, J, π, configurations, unpaired band crossing. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevLett.96.092501
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2006SM02      Phys.Rev. C 73, 061303 (2006)

J.F.Smith, A.M.Fletcher, C.J.Chiara, M.P.Carpenter, H.J.Chantler, C.N.Davids, J.L.Durell, D.B.Fossan, S.J.Freeman, R.V.F.Janssens, T.Koike, F.G.Kondev, D.R.LaFosse, J.C.Lisle, D.Patel, E.S.Paul, W.Reviol, D.G.Sarantites, D.Seweryniak, K.Starosta, R.Wadsworth, A.N.Wilson

First observation of excited states in 114Cs: Spectroscopy of the yrast ν(h11/2) (X) π(h11/2) band

NUCLEAR REACTIONS 58Ni(58Ni, np), E=230 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (recoil)γ-coin. 114Cs deduced high-spin levels, J, π, configurations. Gammasphere, Microball arrays, level systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.73.061303
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2005DU19      Phys.Rev. C 72, 014307 (2005)

R.du Rietz, S.J.Williams, D.Rudolph, J.Ekman, C.Fahlander, C.Andreoiu, M.Axiotis, M.A.Bentley, M.P.Carpenter, C.Chandler, R.J.Charity, R.M.Clark, M.Cromaz, A.Dewald, G.de Angelis, F.Della Vedova, P.Fallon, A.Gadea, G.Hammond, E.Ideguchi, S.M.Lenzi, A.O.Macchiavelli, N.Marginean, M.N.Mineva, O.Moller, D.R.Napoli, M.Nespolo, W.Reviol, C.Rusu, B.Saha, D.G.Sarantites, D.Seweryniak, D.Tonev, C.A.Ur

Investigation of high-spin states in 53Fe

NUCLEAR REACTIONS 28Si(32S, n2pα), E=125 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 24Mg(32S, n2p), E=95 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 53Fe deduced high-spin levels, J, π, T1/2, configurations. Gammasphere, Microball, GASP arrays, recoil-distance technique. Comparison with shell-model predictions.

doi: 10.1103/PhysRevC.72.014307
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2005RE07      Nucl.Instrum.Methods Phys.Res. A541, 478 (2005)

W.Reviol, D.G.Sarantites, R.J.Charity, C.J.Chiara, J.Elson, M.Montero, O.L.Pechenaya, S.K.Ryu, L.G.Sobotka

"HERCULES": Design, instrumentation, and performance characteristics of a high-efficiency evaporation-residue counter under a lot of elastic scattering for spectroscopic studies with Gammasphere

NUCLEAR REACTIONS 126Te(48Ti, xnypzα), E=238 MeV; 142Nd(48Ti, xnypzα), E=230 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin, evaporation residue energy and angular distribution. Gammasphere, Hercules arrays.

doi: 10.1016/j.nima.2004.12.028
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2005VA09      Phys.Rev. C 71, 034311 (2005)

J.J.Valiente-Dobon, C.E.Svensson, C.D.O'Leary, I.Ragnarsson, C.Andreoiu, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, D.Dashdorj, P.Fallon, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, G.F.Grinyer, D.F.Hodgson, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.C.Waddington, R.Wadsworth, D.Ward, S.J.Williams

High-spin rotational structures in 76Kr

NUCLEAR REACTIONS 40Ca(40Ca, 4p), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 76Kr deduced high-spin levels, J, π, T1/2, transition quadrupole moments, configurations. Gammasphere, Microball arrays, comparison with cranked mean-field model predictions.

doi: 10.1103/PhysRevC.71.034311
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2005VA18      Acta Phys.Pol. B36, 1339 (2005)

J.J.Valiente-Dobon, C.E.Svensson, C.D.O'Leary, I.Ragnarsson, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, J.Greene, G.F.Grinyer, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, R.Wadsworth, D.Ward

Lifetimes of High-spin states in 76Kr

NUCLEAR REACTIONS 40Ca(40Ca, 4p), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 76Kr deduced high-spin levels, J, π, T1/2, configurations. Gammasphere, Microball arrays.


2005VA30      Phys.Rev.Lett. 95, 232501 (2005)

J.J.Valiente-Dobon, T.Steinhardt, C.E.Svensson, A.V.Afanasjev, I.Ragnarsson, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, G.de Angelis, F.Donau, J.Eberth, E.Farnea, S.J.Freeman, A.Gadea, P.E.Garrett, A.Gorgen, G.F.Grinyer, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, A.Jungclaus, K.P.Lieb, A.O.Macchiavelli, E.F.Moore, G.Mukherjee, D.R.Napoli, A.A.Phillips, C.Plettner, W.Reviol, D.Sarantites, H.Schnare, M.A.Schumaker, R.Schwengner, D.Seweryniak, M.B.Smith, I.Stefanescu, O.Thelen, R.Wadsworth

Evidence for Nontermination of Rotational Bands in 74Kr

NUCLEAR REACTIONS 40Ca(40Ca, 2pα), E=165, 185 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin, DSA. 74Kr deduced high-spin levels, J, π, T1/2, transition quadrupole moments, configurations, nontermination of rotational bands. Euroball III, ISIS, Gammasphere, and Microball arrays.

doi: 10.1103/PhysRevLett.95.232501
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2004CH17      Nucl.Instrum.Methods Phys.Res. A523, 374 (2004)

C.J.Chiara, D.R.LaFosse, D.G.Sarantites, M.Devlin, F.Lerma, W.Reviol

Role of 4π charged-particle detector arrays in lifetime measurements by Doppler-shift attenuation methods: the Microball

NUCLEAR REACTIONS 58Ni(36Ar, xnypzα), E=180 MeV; 58Ni(58Ni, xnypzα), E=250 MeV; 28Si(20Ne, xnypzα), E=81.5 MeV; analyzed (charged particle)γ-coin data, DSA; deduced bias correction for lifetime determination. Gammasphere, Microball arrays.

doi: 10.1016/j.nima.2003.12.043
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2004EK02      Phys.Rev. C 70, 014306 (2004)

J.Ekman, D.Rudolph, C.Andreoiu, C.Fahlander, M.N.Mineva, M.A.Bentley, S.J.Williams, R.Charity, E.Ideguchi, W.Reviol, D.G.Sarantites, V.Tomov, R.M.Clark, M.Cromaz, P.Fallon, A.O.Macchiavelli, M.P.Carpenter, D.Seweryniak

γ-ray spectroscopy of core-excited states in 51Mn

NUCLEAR REACTIONS 28Si(32S, p2α), E=125 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 51Mn deduced levels, J, π, δ, core-excited states. Gammasphere, Microball arrays, comparison with shell-model predictions.

doi: 10.1103/PhysRevC.70.014306
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2004EK03      Phys.Rev. C 70, 057305 (2004)

J.Ekman, C.Andreoiu, C.Fahlander, M.N.Mineva, D.Rudolph, M.A.Bentley, S.J.Williams, R.J.Charity, E.Ideguchi, W.Reviol, D.G.Sarantites, V.Tomov, R.M.Clark, M.Cromaz, P.Fallon, A.O.Macchiavelli, M.P.Carpenter, D.Seweryniak

Core excited states in the A = 51 mirror nuclei

NUCLEAR REACTIONS 32S(28Si, n2α), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 51Fe deduced levels, J, π, δ, core excitation. Gammasphere, Microball arrays.

NUCLEAR STRUCTURE 51Fe, 51Mn; analyzed levels, J, π, mirror-energy differences. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.70.057305
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2004GO38      Phys.Rev. C 70, 014309 (2004); Erratum Phys.Rev. C 70, 029902 (2004)

J.TM.Goon, D.J.Hartley, L.L.Riedinger, M.P.Carpenter, F.G.Kondev, R.V.F.Janssens, K.H.Abu Saleem, I.Ahmad, H.Amro, J.A.Cizewski, C.N.Davids, M.Danchev, T.L.Khoo, A.Heinz, T.Lauritsen, W.C.Ma, G.L.Poli, J.Ressler, W.Reviol, D.Seweryniak, M.B.Smith, I.Wiedenhover, J.Zhang

Shape coexistence and band crossings in 174Pt

NUCLEAR REACTIONS 92Mo(84Sr, 2p), E=380 MeV; 94Mo(84Sr, 2n2p), E=385 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 174Pt deduced high-spin levels, J, π, configurations, shape coexistence features. Gammasphere, fragment separator, cranked mean-field calculations.

RADIOACTIVITY 174Pt(α) [from 92,94Mo(84Sr, xnyp)]; measured Eα.

doi: 10.1103/PhysRevC.70.014309
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2004MU16      Phys.Rev. C 69, 064315 (2004)

W.F.Mueller, W.Reviol, M.P.Carpenter, R.V.F.Janssens, F.G.Kondev, K.Abu Saleem, I.Ahmad, H.Amro, C.R.Bingham, J.Caggiano, C.N.Davids, D.Hartley, A.Heinz, B.Herskind, D.Jenkins, T.L.Khoo, T.Lauritsen, W.C.Ma, J.Ressler, L.L.Riedinger, D.G.Sarantites, D.Seweryniak, S.Siem, A.A.Sonzogni, J.Uusitalo, P.G.Varmette, I.Wiedenhover, R.Wadsworth

High-spin states in 179Au: Spectroscopy of shape-driving orbitals beyond the neutron midshell

NUCLEAR REACTIONS 104Ru(78Kr, 2np), E=340 MeV; 90Zr(90Zr, p), E=369, 380 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 179Au deduced high-spin levels, J, π, configurations. Level systematics in neighboring isotopes compared. Gammasphere array, mass separator, recoil-decay tagging.

doi: 10.1103/PhysRevC.69.064315
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2004SA43      Nucl.Instrum.Methods Phys.Res. A530, 473 (2004)

D.G.Sarantites, W.Reviol, C.J.Chiara, R.J.Charity, L.G.Sobotka, M.Devlin, M.Furlotti, O.L.Pechenaya, J.Elson, P.Hausladen, S.Fischer, D.Balamuth, R.M.Clark

"Neutron Shell": a high efficiency array of neutron detectors for γ-ray spectroscopic studies with Gammasphere

NUCLEAR REACTIONS 28Si(32S, xnyp), E=130 MeV; measured Eγ, En, γγ-, nγ-, (charged particle)nγ-coin, neutron angular distributions. Gammasphere, Microball, "Neutron Shell" arrays.

doi: 10.1016/j.nima.2004.04.243
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2003CH22      Phys.Rev. C 67, 041303 (2003)

C.J.Chiara, E.Ideguchi, M.Devlin, D.R.LaFosse, F.Lerma, W.Reviol, S.K.Ryu, D.G.Sarantites, C.Baktash, A.Galindo-Uribarri, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, P.Reiter, D.Seweryniak, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Rudolph

Transition quadrupole moments in the superdeformed band of 40Ca

NUCLEAR REACTIONS 28Si(20Ne, 2α), E not given; 24Mg(24Mg, 2α), E=92 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 40Ca deduced superdeformed band transition quadrupole moments, configuration. Gammasphere, Microball arrays, fractional Doppler shift technique.

doi: 10.1103/PhysRevC.67.041303
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2003DA06      Phys.Rev. C 67, 014312 (2003)

M.Danchev, D.J.Hartley, F.G.Kondev, M.P.Carpenter, R.V.F.Janssens, L.L.Riedinger, K.H.Abu Saleem, I.Ahmad, H.Amro, D.L.Balabanski, J.A.Cizewski, C.N.Davids, A.Heinz, T.L.Khoo, T.Lauritsen, C.J.Lister, W.C.Ma, G.L.Poli, J.Ressler, W.Reviol, M.B.Smith, D.Seweryniak, I.Wiedenhover

In-beam γ-ray spectroscopy of 172Pt

NUCLEAR REACTIONS 92Mo(84Sr, 2n2p), E=390, 395 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 172Pt deduced levels, possible J, π, configurations. Gammasphere array, recoil-decay tagging, level systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.67.014312
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2003LE08      Phys.Rev. C 67, 044310 (2003); Erratum Phys.Rev. C 68, 019902 (2003)

F.Lerma, W.Reviol, C.J.Chiara, M.Devlin, D.R.LaFosse, D.G.Sarantites, C.Baktash, H.-Q.Jin, R.M.Clark, I.Y.Lee, A.O.Macchiavelli, W.Satula, D.Soltysik, S.L.Tabor, R.Wyss

Superdeformed bands in 80-83Sr, 82-84Y, 83, 84Zr: Transition quadrupole moments, moments of inertia, and configuration assignments

NUCLEAR REACTIONS 58Ni(28Si, 2pα), (28Si, 4p), (28Si, n3p), (28Si, 3p), (28Si, n2p), (29Si, 2pα), (29Si, 4p), (29Si, 3p), (29Si, n2p), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 80,81,82,83Sr, 82,83,84Y, 83,84Zr deduced superdeformed bands, average transition quadrupole moments, moments of inertia, deformation, configurations. Gammasphere, Microball arrays, fractional Doppler shift technique.

doi: 10.1103/PhysRevC.67.044310
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2003PA41      Phys.Rev. C 68, 044323 (2003)

H.I.Park, D.J.Hartley, L.L.Riedinger, W.Reviol, O.Zeidan, J.-Y.Zhang, A.Galindo-Uribarri, R.V.F.Janssens M.P.Carpenter, D.Seweryniak, D.G.Sarantites, M.Devlin, B.G.Dong, I.Ragnarsson

Rotational structures near 40(h-bar) in 123La

NUCLEAR REACTIONS 92Mo(40Ca, p2α), E=184 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 123La deduced high-spin levels, J, π, configurations. Gammasphere, Microball arrays. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.68.044323
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2003RE33      Phys.Rev. C 68, 054317 (2003)

W.Reviol, C.J.Chiara, O.Pechenaya, D.G.Sarantites, P.Fallon, A.O.Macchiavelli

Spectroscopy of 186Pb and 186Tl via evaporation residue detection

NUCLEAR REACTIONS 142Nd(48Ti, 4n), (48Ti, 3np), E=230, 238 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 186Pb, 186Tl deduced levels, J, π, configurations, rotational bands, deformation features. Gammasphere, Hercules arrays.

doi: 10.1103/PhysRevC.68.054317
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2003SM01      Phys.Lett. 551B, 262 (2003)

M.B.Smith, J.A.Cizewski, M.P.Carpenter, F.G.Kondev, T.L.Khoo, T.Lauritsen, R.V.F.Janssens, K.Abu Saleem, I.Ahmad, H.Amro, M.Danchev, C.N.Davids, D.J.Hartley, A.Heinz, C.J.Lister, W.C.Ma, G.L.Poli, J.Ressler, W.Reviol, L.L.Riedinger, D.Seweryniak, I.Wiedenhover

Limits of the energy-spin space beyond the proton drip line: entry distributions of Pt and Au isobars

NUCLEAR REACTIONS 92,94,96Mo(84Sr, xnyp)173mAu/175Au/172Pt/173Pt/174Pt/175Pt/176Pt, E=380-390 MeV; measured Eγ, Iγ, (recoil)γ-coin, γ multiplicity and sum energy; deduced compound nuclei energy-spin entry distributions. Gammasphere, mass separator, recoil-decay tagging.

doi: 10.1016/S0370-2693(02)03051-4
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2002EK01      Phys.Rev. C 66, 051301 (2002)

J.Ekman, D.Rudolph, C.Fahlander, I.Ragnarsson, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, M.Cromaz, P.Fallon, E.Ideguchi, A.O.Macchiavelli, M.N.Mineva, W.Reviol, D.G.Sarantites, D.Seweryniak, V.Tomov, S.J.Williams

Evidence for a 1g9/2 rotational band in 51Mn

NUCLEAR REACTIONS 28Si(32S, p2α), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 51Mn deduced high-spin levels, J, π, configurations. Gammasphere and Microball arrays. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.66.051301
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2002HA20      Phys.Rev. C65, 044329 (2002)

D.J.Hartley, L.L.Riedinger, M.Danchev, W.Reviol, O.Zeidan, J.-Y.Zhang, A.Galindo-Uribarri, C.J.Gross, C.Baktash, M.Lipoglavsek, S.D.Paul, D.C.Radford, C.-H.Yu, D.G.Sarantites, M.Devlin, M.P.Carpenter, R.V.F.Janssens, D.Seweryniak, E.Padilla

Toward Complete Spectroscopy of 128Pr and Rotational Structures in 126Pr

NUCLEAR REACTIONS 92Mo(40Ca, n3p), (40Ca, npα), E=170, 184 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (recoil)γ-coin. 126,128Pr deduced high-spin levels, J, π, B(M1)/B(E2), configurations. Gammasphere, Microball, Clarion, Hyball arrays. Systematics of signature splitting in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.65.044329
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2002JE07      Phys.Rev. C65, 064307 (2002)

D.G.Jenkins, N.S.Kelsall, C.J.Lister, D.P.Balamuth, M.P.Carpenter, T.A.Sienko, S.M.Fischer, R.M.Clark, P.Fallon, A.Gorgen, A.O.Macchiavelli, C.E.Svensson, R.Wadsworth, W.Reviol, D.G.Sarantites, G.C.Ball, J.Rikovska Stone, O.Juillet, P.Van Isacker, A.V.Afanasjev, S.Frauendorf

T = 0 and T = 1 States in the Odd-Odd N = Z Nucleus, 3570Br35

NUCLEAR REACTIONS 40Ca(32S, np), E=80-100 MeV; 40Ca(36Ar, npα), E=145 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 70Br deduced high-spin levels, J, π, isomeric state, relative neutron-proton pairing strength features. Gammasphere, Microball arrays. Comparisons with model predictions.

doi: 10.1103/PhysRevC.65.064307
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2002JU12      Eur.Phys.J. A 15, 189 (2002)

R.Julin, P.T.Greenlees, K.Helariutta, P.Jones, S.Juutinen, A.-P.Leppanen, H.Kankaanpaa, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo, D.T.Joss, S.J.Williams, D.G.Jenkins, N.-S.Kelsall, R.Wadsworth, K.Hauschild, A.Hurstel, W.Korten, Y.Le Coz, A.N.Andreyev, P.Van Duppen, M.Huyse, K.Van de Vel, C.J.Moore, C.D.O'Leary, R.D.Page, M.J.Taylor, W.Reviol, M.B.Smith

In-beam studies of very neutron-deficient heavy nuclei

NUCLEAR REACTIONS 144Sm(36Ar, 4n), (42Ca, 4n), 112Sn(64Zn, 2n), 171Yb(28Si, 5n), 142Nd(52Cr, 4n), E not given; measured Eγ, Iγ, (recoil)γ-coin. 182Pb, 190Po deduced transitions. Recoil-decay tagging.

doi: 10.1140/epja/i2001-10252-6
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2002KO09      Phys.Lett. 528B, 221 (2002)

F.G.Kondev, M.P.Carpenter, R.V.F.Janssens, C.J.Lister, K.Abu Saleem, I.Ahmad, H.Amro, J.Caggiano, C.N.Davids, A.Heinz, B.Herskind, T.L.Khoo, T.Lauritsen, W.C.Ma, J.J.Ressler, W.Reviol, L.L.Riedinger, D.G.Sarantites, D.Seweryniak, S.Siem, A.A.Sonzogni, P.G.Varmette, I.Wiedenhover

First Observation of Excited Structures in Neutron-Deficient 179Hg: Evidence for multiple shape coexistence

NUCLEAR REACTIONS 90Zr(90Zr, n), E=369, 380 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 179Hg deduced high-spin levels, J, π, configurations, deformation. Gammasphere array, mass separator, recoil-decay tagging.

RADIOACTIVITY 179Hg(α) [from 90Zr(90Zr, n)]; measured Eα, Eγ, αγ-coin, T1/2. 179Hg deduced ground-state J, π.

doi: 10.1016/S0370-2693(02)01221-2
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2002PA22      Phys.Rev. C65, 051308 (2002)

E.S.Paul, A.J.Boston, H.J.Chantler, P.J.Nolan, M.P.Carpenter, R.V.F.Janssens, F.G.Kondev, D.Seweryniak, C.J.Chiara, D.B.Fossan, T.Koike, K.Starosta, D.R.LaFosse, A.M.Fletcher, J.C.Lisle, D.Patel, J.F.Smith, W.Reviol, D.G.Sarantites, R.Wadsworth, A.N.Wilson, I.Ragnarsson

Core-Excited Smoothly Terminating Band in 114Xe

NUCLEAR REACTIONS 58Ni(58Ni, 2p), E=230 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 114Xe deduced high-spin levels, J, π, configurations, band termination features. Gammasphere, Microball arrays, cranked mean-field calculations.

doi: 10.1103/PhysRevC.65.051308
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2002RE09      Phys.Rev. C65, 034309 (2002)

W.Reviol, D.G.Sarantites, R.J.Charity, V.Tomov, J.Dobaczewski, D.Rudolph, R.M.Clark, M.Cromaz, P.Fallon, A.O.Macchiavelli, M.P.Carpenter, D.Seweryniak

Highly Deformed Band Structure in 57Co

NUCLEAR REACTIONS 28Si(32S, 3p), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 57Co deduced high-spin levels, J, π, deformation, transition quadrupole moments, B(M1), configurations. Gammasphere, Microball arrays. Skyrme Hartree-Fock calculations.

doi: 10.1103/PhysRevC.65.034309
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2002ST06      Phys.Rev. C65, 034323 (2002)

E.A.Stefanova, M.Danchev, R.Schwengner, D.L.Balabanski, M.P.Carpenter, M.Djongolov, S.M.Fischer, D.J.Hartley, R.V.F.Janssens, W.F.Mueller, D.Nisius, W.Reviol, L.L.Riedinger, O.Zeidan

Structure of High-Spin States in 91Sr and 92Sr

NUCLEAR REACTIONS 159Tb(36S, X)91Sr/92Sr, E=165 MeV; measured Eγ, Iγ, γγ-coin. 91,92Sr deduced high-spin levels, J, π, configurations. Gammasphere array, comparison with shell-model results.

doi: 10.1103/PhysRevC.65.034323
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2002ZE01      Phys.Rev. C65, 024303 (2002)

O.Zeidan, D.J.Hartley, L.L.Riedinger, M.Danchev, W.Reviol, W.D.Weintraub, J.-Z.Zhang, A.Galindo-Uribarri, C.J.Gross, S.D.Paul, C.Baktash, M.Lipoglavsek, D.C.Radford, C.H.Yu, D.G.Sarantites, M.Devlin, M.P.Carpenter, R.V.F.Janssens, D.Seweryniak, E.Padilla

Rotational Structures in 129Nd and Signature Splitting Systematics of the νh11/2 Bands in A ∼ 130 Nuclei

NUCLEAR REACTIONS 92Mo(40Ca, n2p), E=170, 184 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (recoil)γ-coin. 129Nd deduced high-spin levels, J, π, B(M1)/B(E2), configurations. Level systematics in neighboring nuclides discussed. Gammasphere, Microball, Clarion, HyBall arrays, mass separator.

doi: 10.1103/PhysRevC.65.024303
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2002ZE09      Phys.Rev. C66, 044311 (2002)

O.Zeidan, D.J.Hartley, L.L.Riedinger, W.Reviol, W.D.Weintraub, Y.Sun, J.-y.Zhang, A.Galindo-Uribarri, S.D.Paul, D.G.Sarantites, M.Devlin, M.P.Carpenter, R.V.F.Janssens, D.Seweryniak

Yrast spectroscopy of 60128Nd68 and systematics of the νh11/2 crossing in A ∼ 130 nuclei

NUCLEAR REACTIONS 92Mo(40Ca, 2n2p), E=184 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 128Nd deduced high-spin levels, J, π, configurations. Gammasphere, Microball arrays. Cranked mean-field analysis, rotational-band systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.66.044311
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