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NSR database version of April 11, 2024.

Search: Author = M.A.Riley

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2023SI08      Phys.Rev. C 107, 054305 (2023)

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

Evolution of structure and shapes in 158Er to ultrahigh spin

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

doi: 10.1103/PhysRevC.107.054305
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2022HA01      Phys.Rev. C 105, 014301 (2022)

D.J.Hartley, F.G.Kondev, M.P.Carpenter, R.V.F.Janssens, M.A.Riley, K.Villafana, K.Auranen, A.D.Ayangeakaa, J.S.Baron, A.J.Boston, J.A.Clark, J.P.Greene, J.Heery, C.R.Hoffman, T.Lauritsen, J.Li, D.Little, E.S.Paul, G.Savard, D.Seweryniak, J.Simpson, S.Stolze, G.L.Wilson, J.Wu, S.Zhu

νi13/2 structures in 155Sm and 159Gd: Supporting evidence of a Z=60 deformed subshell gap

NUCLEAR REACTIONS 154Sm(160Gd, n), E=1000 MeV from the ATLAS facility of the Argonne National Laboratory. Measured Eγ, Iγ, γγ-coin using Gammasphere array with 73 Compton-suppressed HPGe detectors. 155Sm, 159Gd; deduced high-spin levels, J, π, νi13/2 bands, with the two signature partners, alignments and signature splitting. Discussed systematics of νi13/2 structures in N=91, 93, 95, and 97 isotopes: 153,155,157Sm, 155,157,159Gd, 157,159,161Dy, 151Ce, 153,155Nd, 161,163Er, 163,165Yb.

doi: 10.1103/PhysRevC.105.014301
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2021HA14      Phys.Rev. C 103, 034322 (2021)

D.J.Hartley, K.Villafana, F.G.Kondev, M.A.Riley, R.V.F.Janssens, K.Auranen, A.D.Ayangeakaa, J.S.Baron, A.J.Boston, M.P.Carpenter, J.A.Clark, J.P.Greene, J.Heery, C.R.Hoffman, P.Jackson, T.Lauritsen, J.Li, D.Little, E.S.Paul, G.Savard, D.Seweryniak, J.Simpson, S.Stolze, G.L.Wilson, J.Wu, S.Zhu, S.Frauendorf

Possible quenching of static neutron pairing near the N=98 deformed shell gap: Rotational structures in 160, 161Gd

NUCLEAR REACTIONS 154Sm, 164Dy(160Gd, X)160Gd/161Gd, E=1000 MeV; measured Eγ, Iγ, γγ-coin using the Gammasphere array with 73 detectors at ATLAS-ANL facility. 160,161Gd; deduced high-spin levels, J, π, rotational bands, branching ratios, B(M1)/B(E2), Nilsson configurations, alignments, neutron pairing strength. Comparison with structure of ν5/2[523] band in N=97 isotone 159Sm.

doi: 10.1103/PhysRevC.103.034322
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2020MA16      Phys.Rev. C 101, 044312 (2020)

S.N.T.Majola, M.A.Sithole, L.Mdletshe, D.Hartley, J.Timar, B.M.Nyako, J.M.Allmond, R.A.Bark, C.Beausang, L.Bianco, T.D.Bucher, S.P.Bvumbi, M.P.Carpenter, C.J.Chiara, N.Cooper, D.M.Cullen, D.Curien, T.S.Dinoko, B.J.P.Gall, P.E.Garrett, P.T.Greenlees, J.Hirvonen, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, B.V.Kheswa, F.G.Kondev, A.Korichi, W.D.Kulp, T.Lauritsen, E.A.Lawrie, L.Makhathini, P.L.Masiteng, B.Maqabuka, E.A.McCutchan, D.Miller, S.Miller, A.Minkova, L.Msebi, S.H.Mthembu, J.Ndayishimye, P.Nieminen, P.Z.Ngcobo, S.S.Ntshangase, J.N.Orce, P.Peura, P.Rahkila, N.Redon, L.L.Riedinger, M.A.Riley, D.G.Roux, P.Ruotsalainen, J.Piot, J.Saren, J.F.Sharpey-Schafer, C.Scholey, O.Shirinda, J.Simpson, J.Sorri, I.Stefanescu, S.Stolze, J.Uusitalo, X.Wang, V.Werner, J.L.Wood, C.-H.Yu, S.Zhu, G.Zimba

First candidates for γ vibrational bands built on the [505] 11/2- neutron orbital in odd-A Dy isotopes

NUCLEAR REACTIONS 155Gd(α, 2n)157Dy, E=25 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using the JUROGAM II array at the University of Jyvaskyla. 148Nd(12C, 5n)155Dy, E=65 MeV; 124Sn(36S, 5n)155Dy, E=165 MeV; measured Eγ, Iγ, γγ-coin using GAMMASPHERE array at Argonne National Laboratory. 155,157Dy; deduced high-spin levels, J, π, multipolarities, Kπ=0+ bands, Kπ=2+ γ-vibrational bands, configurations, alignments, B(M1)/B(E2) ratios. 157Dy; calculated neutron quasiparticle Routhians using cranked shell model (CSM). 154,156Dy; discussed first excited 0+ states in the core nuclei. Systematics of level energies versus spin for γ bands in 154,155,156,157,158Dy and 152,153,154,155,156Gd.

doi: 10.1103/PhysRevC.101.044312
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2019MA70      Phys.Rev. C 100, 044324 (2019)

S.N.T.Majola, Z.Shi, B.Y.Song, Z.P.Li, S.Q.Zhang, R.A.Bark, J.F.Sharpey-Schafer, D.G.Aschman, S.P.Bvumbi, T.D.Bucher, D.M.Cullen, T.S.Dinoko, J.E.Easton, N.Erasmus, P.T.Greenlees, D.J.Hartley, J.Hirvonen, A.Korichi, U.Jakobsson, P.Jones, S.Jongile, R.Julin, S.Juutinen, S.Ketelhut, B.V.Kheswa, N.A.Khumalo, E.A.Lawrie, J.J.Lawrie, R.Lindsay, T.E.Madiba, L.Makhathini, S.M.Maliage, B.Maqabuka, K.L.Malatji, P.L.Masiteng, P.I.Mashita, L.Mdletshe, A.Minkova, L.Msebi, S.M.Mullins, J.Ndayishimye, D.Negi, A.Netshiya, R.Newman, S.S.Ntshangase, R.Ntshodu, B.M.Nyako, P.Papka, P.Peura, P.Rahkila, L.L.Riedinger, M.A.Riley, D.G.Roux, P.Ruotsalainen, J.J.Saren, C.Scholey, O.Shirinda, M.A.Sithole, J.Sorri, M.Stankiewicz, S.Stolze, J.Timar, J.Uusitalo, P.A.Vymers, M.Wiedeking, G.L.Zimba

β and γ bands in N=88, 90, and 92 isotones investigated with a five-dimensional collective Hamiltonian based on covariant density functional theory: Vibrations, shape coexistence, and superdeformation

NUCLEAR REACTIONS 136Xe(18O, 4n)150Sm, E=75 MeV; 148Nd(α, 2n)150Sm, E=25 MeV; 152Sm(α, 4n)152Gd, E=45 MeV; 152Sm(α, 2n)154Gd, E=25 MeV; 155Gd(3He, 4n)154Dy, E=37.5 MeV; 147Sm(12C, 3n)156Er, E=65 MeV; 155Gd(α, 3n)156Dy, E=25 MeV; 144Sm(18O, 4n)158Yb, E=78 MeV; 150Sm(12C, 4n)158Er, E=65 MeV; 156Gd(α, 2n)158Dy, E=27 MeV; 147Sm(16O, 3n)160Yb, E=73 MeV; 152Sm(12C, 4n)160Er, E=64 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using the AFRODITE array at the cyclotron facility of the iThemba Labs for 11 reactions, and JUROGAM II array at Jyvaskyla for 148Nd(α, 2n)150Sm and 155Gd(α, 3n)156Dy reactions. 150Sm, 152,154Gd, 154,156,158Dy, 156,160Er, 158,160Yb; deduced levels, J, π, multipolarities, β, γ and 0+ bands, B(E2) ratios. 150,152,154Sm, 152,154,156Gd, 154,156,158Dy, 156,158,160Er, 158,160,162Yb; calculated potential energy surfaces (PES) and probability density distribution contours in (β, γ) plane; deduced staggering parameters, in-band B(E2) values, absolute transition strengths of E0 transitions, X(E0/E2) values from present and previous experimental data. Comparison with 5DCH-CDFT calculations with PC-PK1 density functional.

doi: 10.1103/PhysRevC.100.044324
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2019MI12      Phys.Rev. C 100, 014302 (2019)

S.L.Miller, K.A.Villafana, M.A.Riley, J.Simpson, D.J.Hartley, E.S.Paul, A.D.Ayangeakaa, J.S.Baron, P.F.Bertone, A.J.Boston, M.P.Carpenter, J.J.Carroll, J.Cavey, C.J.Chiara, P.Chowdhury, U.Garg, S.S.Hota, E.G.Jackson, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, M.Litz, W.C.Ma, J.Matta, E.A.McCutchan, S.Mukhopadhyay, P.J.Nolan, E.E.Pedicini, L.L.Riedinger, J.F.Sharpey-Schafer, J.R.Vanhoy, A.Volya, X.Wang, S.Zhu

Backbending, seniority, and Pauli blocking of pairing correlations at high rotational frequencies in rapidly rotating nuclei

NUCLEAR STRUCTURE 156,157,158,159,160,161,162,163,164,165,166,168,170Er, 158,159,160,161,162,163,164,165,166,167,168,169,170,171,172Yb, 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174Hf, 164,165,166,167,168,169,170,171,172,173,174,175,176,177W; calculated band-crossing frequencies of the first (AB) and the second (BC) i13/2 neutron alignments. 162Er, 164Yb, 166Hf, 168W: calculated AB and BC crossing frequencies as function of quadrupole deformation, and as function of the percentage of the odd-even mass difference for N=94 nuclei. Comparison with experimental data. A=134-200, Z=52-82; systematics of E(first 4+)/E(first 2+) ratios for even-even nuclei.

doi: 10.1103/PhysRevC.100.014302
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2017AL06      Phys.Rev.Lett. 118, 092503 (2017)

J.M.Allmond, A.E.Stuchbery, C.Baktash, A.Gargano, A.Galindo-Uribarri, D.C.Radford, C.R.Bingham, B.A.Brown, L.Coraggio, A.Covello, M.Danchev, C.J.Gross, P.A.Hausladen, N.Itaco, K.Lagergren, E.Padilla-Rodal, J.Pavan, M.A.Riley, N.J.Stone, D.W.Stracener, R.L.Varner, C.-H.Yu

Electromagnetic Moments of Radioactive 136Te and the Emergence of Collectivity 2p (+) 2n Outside of Double-Magic 132Sn

NUCLEAR REACTIONS Ti(136Te, 136Te'), E=410 MeV; measured reaction products, Eγ, Iγ. 136Te; deduced energy levels, J, π, B(E2) values. Comparison with experimental data and theoretical calculations.

doi: 10.1103/PhysRevLett.118.092503
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2017HA03      Phys.Rev. C 95, 014321 (2017)

D.J.Hartley, L.L.Riedinger, R.V.F.Janssens, S.N.T.Majola, M.A.Riley, J.M.Allmond, C.W.Beausang, M.P.Carpenter, C.J.Chiara, N.Cooper, D.Curien, B.J.P.Gall, P.E.Garrett, F.G.Kondev, W.D.Kulp, T.Lauritsen, E.A.McCutchan, D.Miller, S.Miller, J.Piot, N.Redon, J.F.Sharpey-Schafer, J.Simpson, I.Stefanescu, X.Wang, V.Werner, J.L.Wood, C.-H.Yu, S.Zhu, J.Dudek

Investigation of negative-parity states in 156Dy: Search for evidence of tetrahedral symmetry

NUCLEAR REACTIONS 148Nd(12C, 4n), E=65 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using GAMMASPHERE array at ATLAS-ANL facility. 156Dy; deduced high-spin levels, J, π, multipolarities, negative-parity bands, alignments, configurations, B(E2)/B(E1) ratios and octupole excitations, no evidence for tetrahedral symmetry. Systematics of Kπ=0-, 3- and Kπ=1-, 4- states in N=90 isotones 152Sm, 154Gd, 156Dy and 160Yb.

doi: 10.1103/PhysRevC.95.014321
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2017HE15      Phys.Rev. C 96, 034325 (2017)

T.C.Hensley, P.D.Cottle, V.Tripathi, B.Abromeit, M.Anastasiou, L.T.Baby, J.S.Baron, D.Caussyn, R.Dungan, K.W.Kemper, R.S.Lubna, S.L.Miller, N.Rijal, M.A.Riley, S.L.Tabor, P.-L.Tai, K.Villafana

High spin spectroscopy in 219Ra: Search for the lower mass boundary of the region of statically octupole-deformed nuclei

NUCLEAR REACTIONS 208Pb(14C, 3n), E=68 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using an array of Compton-suppressed seven single crystal HPGe detectors and three clover-style HPGe detectors at the FN Tandem accelerator laboratory of Florida State University. 219Ra; deduced high-spin levels, J, π, multipolarities, octupole bands, evidence for stable octupole deformation. Systematics of energy splitting between candidates for simplex partner bands in 219,221Ra, 221,223Th.

doi: 10.1103/PhysRevC.96.034325
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2017PA02      Phys.Rev.Lett. 118, 052501 (2017)

J.J.Parker, IV, I.Wiedenhover, P.D.Cottle, J.Baker, D.McPherson, M.A.Riley, D.Santiago-Gonzalez, A.Volya, V.M.Bader, T.Baugher, D.Bazin, A.Gade, T.Ginter, H.Iwasaki, C.Loelius, C.Morse, F.Recchia, D.Smalley, S.R.Stroberg, K.Whitmore, D.Weisshaar, A.Lemasson, H.L.Crawford, A.O.Macchiavelli, K.Wimmer

Isomeric Character of the Lowest Observed 4+ State in 44S

NUCLEAR REACTIONS Be(46Ar, 2p)44S, E=99 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, level T1/2, B(E2). Plunger apparatus at GRETINA.

doi: 10.1103/PhysRevLett.118.052501
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2016BU02      Phys.Rev.Lett. 116, 112503 (2016)

B.Bucher, S.Zhu, C.Y.Wu, R.V.F.Janssens, D.Cline, A.B.Hayes, M.Albers, A.D.Ayangeakaa, P.A.Butler, C.M.Campbell, M.P.Carpenter, C.J.Chiara, J.A.Clark, H.L.Crawford, M.Cromaz, H.M.David, C.Dickerson, E.T.Gregor, J.Harker, C.R.Hoffman, B.P.Kay, F.G.Kondev, A.Korichi, T.Lauritsen, A.O.Macchiavelli, R.C.Pardo, A.Richard, M.A.Riley, G.Savard, M.Scheck, D.Seweryniak, M.K.Smith, R.Vondrasek, A.Wiens

Direct Evidence of Octupole Deformation in Neutron-Rich 144Ba

NUCLEAR REACTIONS 208Pb(144Ba, 144Ba'), E=650 MeV; measured reaction products, Eγ, Iγ. 144Ba; deduced yields, E2 and E3 matrix elements, quadrupole moments, deformation parameters, B(E2), B(E3). Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.116.112503
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2016HA36      Phys.Rev. C 94, 054329 (2016)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, S.L.Miller, A.D.Ayangeakaa, P.F.Bertone, M.P.Carpenter, C.J.Chiara, P.Chowdhury, U.Garg, G.Gurdal, S.S.Hota, F.G.Kondev, T.Lauritsen, W.C.Ma, J.Matta, E.A.McCutchan, S.Mukhopadhyay, E.E.Pedicini, J.R.Vanhoy, S.Zhu

First observation of rotational structures in 168Re

NUCLEAR REACTIONS 118Sn(55Mn, 5n), E=260 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array at ATLAS-ANL facility. 168Re; deduced high-spin levels, J, π, γ-branching ratios, bands, alignments, band crossings, B(M1)/B(E2) ratios, configuration. Comparison of B(M1)/B(E2) ratios with theoretical calculations. Systematics of level energies for πh11/2νi13/2 bands in 166,168,170,172,174Re. Systematics of signature splitting for πh11/2νi13/2 bands in 166,168,170,172,174Re, 164,166,168,170,172Ta, 162,164,166,168,170Lu.

doi: 10.1103/PhysRevC.94.054329
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2016RI04      Phys.Scr. 91, 123002 (2016)

M.A.Riley, J.Simpson, E.S.Paul

High resolution gamma-ray spectroscopy and the fascinating angular momentum realm of the atomic nucleus

doi: 10.1088/0031-8949/91/12/123002
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2015HA16      Phys.Rev. C 91, 057301 (2015)

D.J.Hartley, M.A.Riley, X.Wang, S.Miller, R.V.F.Janssens, E.S.Paul, J.M.Rees, J.Simpson, L.L.Riedinger, A.D.Ayangeakaa, M.P.Carpenter, C.J.Chiara, U.Garg, P.Hampson, C.R.Hoffman, F.G.Kondev, T.Lauritsen, P.J.R.Mason, J.T.Matta, P.J.Nolan, J.Ollier, M.Petri, D.C.Radford, J.P.Revill, S.Zhu, I.Ragnarsson

Persistence of collective behavior at high spin in the N=88 nucleus 153Tb

NUCLEAR REACTIONS 124Sn(37Cl, 4nα), E=180 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array at ATLAS-ANL facility. 153Tb; deduced high-spin levels, J, π, bands, alignments, configurations. Systematics of yrast states in N=88 isotones 152Gd, 154Dy, 156Er, 158Yb, 153Tb, 155Ho, 157Tm, and Comparison with Nilsson-Strutinsky (CNS) calculations.

doi: 10.1103/PhysRevC.91.057301
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2015MA15      Phys.Rev. C 91, 034330 (2015)

S.N.T.Majola, D.J.Hartley, L.L.Riedinger, J.F.Sharpey-Schafer, J.M.Allmond, C.Beausang, M.P.Carpenter, C.J.Chiara, N.Cooper, D.Curien, B.J.P.Gall, P.E.Garrett, R.V.F.Janssens, F.G.Kondev, W.D.Kulp, T.Lauritsen, E.A.McCutchan, D.Miller, J.Piot, N.Redon, M.A.Riley, J.Simpson, I.Stefanescu, V.Werner, X.Wang, J.L.Wood, C.-H.Yu, S.Zhu

Observation of γ vibrations and alignments built on non-ground-state configurations in 156Dy

NUCLEAR REACTIONS 148Nd(12C, 4n), E=65 MeV; measured Eγ, Iγ, multi-fold γγ-coin, γγ(θ)(DCO) using Gammasphere array at ATLAS-ANL facility. 156Dy; deduced high-spin levels, J, π, multipolarities, ground-state, γ- and S-bands, 0+ pairing isomer state, alignments, B(E2) ratios, candidate for an aligned S band built on the second 0+, second vacuum configuration. Systematics of γ band members above 15+ in 104Mo, 154,156,160,162,164Dy, 156,160,164,170Er, 180Hf, 238U.

doi: 10.1103/PhysRevC.91.034330
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2015PA16      Acta Phys.Pol. B46, 487 (2015)

E.S.Paul, J.M.Rees, P.Hampson, M.A.Riley, J.Simpson, A.D.Ayangeakaa, J.S.Baron, M.P.Carpenter, C.J.Chiara, U.Garg, D.J.Hartley, C.R.Hoffman, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.R.Mason, J.Matta, S.L.Miller, P.J.Nolan, J.Ollier, M.Petri, D.C.Radford, J.P.Revill, X.Wang, S.Zhu, I.Ragnarsson

Recent Results at Ultrahigh Spin: Terminating States and Beyond in Mass 160 Rare-earth Nuclei

NUCLEAR REACTIONS 124Sn(37Cl, xn)155Ho/156Ho/157Ho, E=180 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, systematics.

doi: 10.5506/APhysPolB.46.487
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2015RE03      Phys.Rev. C 91, 054301 (2015)

J.M.Rees, E.S.Paul, J.Simpson, M.A.Riley, A.D.Ayangeakaa, M.P.Carpenter, C.J.Chiara, U.Garg, P.Hampson, D.J.Hartley, C.R.Hoffman, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.R.Mason, J.Matta, S.L.Miller, P.J.Nolan, J.Ollier, M.Petri, D.C.Radford, J.P.Revill, X.Wang, S.Zhu, J.Gellanki, I.Ragnarsson

High-spin terminating states in the N=88 155Ho and 156Er isotones

NUCLEAR REACTIONS 124Sn(37Cl, 6n)155Ho, E=180 MeV; 114Cd(48Ca, 6n)156Er, E=215 MeV; measured Eγ, Iγ, γγ-coin, angular intensity ratios using Gammasphere array at ATLAS-ANL facility. 155Ho, 156Er; deduced high-spin levels, J, π, multipolarity, bands, non-collective oblate states in 155Ho, γ-branching ratios and B(M1)/B(E2) for 155Ho, alignments, configurations, staggering parameter; calculated Tilted Fermi-surface diagrams. Comparison with cranked Nilsson-Strutinsky calculations, and with structure of N=88 isotones 154Dy, 155Ho and 156Er.

doi: 10.1103/PhysRevC.91.054301
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2014HA22      Phys.Rev. C 90, 017301 (2014)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, S.Miller, A.D.Ayangeakaa, M.P.Carpenter, J.J.Carroll, J.Cavey, C.J.Chiara, P.Chowdhury, U.Garg, S.S.Hota, E.G.Jackson, F.G.Kondev, T.Lauritsen, M.Litz, W.C.Ma, J.Matta, E.S.Paul, E.E.Pedicini, J.Simpson, J.R.Vanhoy, S.Zhu

High-spin structure of odd-odd 172Re

NUCLEAR REACTIONS 120Sn(55Mn, 3n), E=257 MeV; measured Eγ, Iγ, γγ, three- and higher-fold coincidences, γγ(θ) ratios using Gammasphere array at ATLAS-ANL facility. 172Re; deduced high-spin levels, J, π, bands, configurations, alignment plots.

doi: 10.1103/PhysRevC.90.017301
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2014MA91      Phys.Rev. C 90, 054331 (2014)

P.J.R.Mason, J.Simpson, E.S.Paul, M.A.Riley, K.Auranen, H.Badran, J.S.Baron, A. J. Boston, T.Davis-Merry, T.Grahn, P.T.Greenlees, A.Herzan, U.Jakobsson, D.T.Joss, R.Julin, S.Juutinen, J.Konki, M.Leino, C.McPeake, S.L.Miller, G.O'Neill, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.F.Sharpey-Schafer, L.Sinclair, J.Sorri, S.Stolze, J.Uusitalo, K.Villafani, F.Wearing, J.P.Wright

Spectroscopy of 161Hf from low to high spin

NUCLEAR REACTIONS 118Sn(48Ti, 5n), E=240 MeV; 110Pd(56Fe, 5n), E=270 MeV; measured evaporation residues using RITU separator, Eγ, Iγ, γγ-coin, γ(θ), delayed γ spectra, γ(t), isomer half-life using Jurogam-II array and recoil-decay tagging technique at Jyvaskyla accelerator facility. 161Hf; deduced high-spin levels, J, π, bands, K-shell conversion coefficients from γ and x-ray spectra, B(M2), alignments, configurations, Routhians. Comparison with Woods-Saxon cranked shell-model calculations.

doi: 10.1103/PhysRevC.90.054331
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2013HA02      Phys.Rev. C 87, 024315 (2013)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, S.Miller, A.D.Ayangeakaa, P.F.Bertone, M.P.Carpenter, C.J.Chiara, P.Chowdhury, U.Garg, G.Gurdal, S.S.Hota, F.G.Kondev, T.Lauritsen, W.C.Ma, J.Matta, E.A.McCutchan, S.Mukhopadhyay, E.E.Pedicini, J.R.Vanhoy, S.Zhu

Multiple band structures in 169, 170Re: Search for the wobbling mode in 169Re, and residual-interaction analysis of structures in 170Re

NUCLEAR REACTIONS 118Sn(55Mn, X), E=260 MeV; measured Eγ, Iγ, γγ-coin, using the Gammasphere. 169,170Re; deduced levels, J, π, B(M1)/B(E2), bands, configurations; calculated B(M1)/B(E2).

NUCLEAR STRUCTURE 164,166,168Lu, 166,168,170,172Ta, 170,172,174Re, 176Ir; calculated residual interactions. 163,165,167,169,171Lu, 165,167,169,171,173Ta, 169,171,173,175Re, 173,175,177Ir; calculated relative levels of πi13/2, πh9/2, πh11/2 bands.

doi: 10.1103/PhysRevC.87.024315
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2013HA36      Phys.Rev. C 88, 044323 (2013)

D.J.Hartley, E.E.Pedicini, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, S.Miller, A.D.Ayangeakaa, M.P.Carpenter, J.J.Carroll, J.Cavey, C.J.Chiara, P.Chowdhury, U.Garg, S.S.Hota, E.G.Jackson, F.G.Kondev, T.Lauritsen, M.Litz, W.C.Ma, J.Matta, E.S.Paul, J.Simpson, J.R.Vanhoy, S.Zhu

Possible deformation evolution in the π i13/2 structure of 171Re

NUCLEAR REACTIONS 120Sn(55Mn, 4n), E=257 MeV; measured Eγ, Iγ, γγ-coin, three- and higher-fold coincidences, angular correlation ratios using Gammasphere array at ATLAS-ANL facility. 171Re; deduced high-spin levels, J, π, multipolarity, rotational bands, alignments, configurations, B(M1)/B(E2), moment of inertia plots. No evidence found for wobbling mode of excitation. Comparison with cranked shell-model calculations.

doi: 10.1103/PhysRevC.88.044323
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2013RE11      Phys.Rev. C 88, 031304 (2013)

J.P.Revill, E.S.Paul, X.Wang, M.A.Riley, J.Simpson, R.V.F.Janssens, J.Ollier, A.J.Boston, M.P.Carpenter, C.J.Chiara, C.R.Hoffman, F.G.Kondev, T.Lauritsen, P.J.Nolan, J.M.Rees, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Quadrupole moments of coexisting collective shapes at high spin in 154Er

NUCLEAR REACTIONS 110Pd(48Ti, 4n), E=215 MeV; measured Eγ, Iγ, γγ-coin, fractional Doppler-shift values F(τ) vs Eγ. 154Er; deduced high-spin levels, triaxial strongly deformed (TSD), and superdeformed (SD) bands, transition quadrupole moments, configurations. Configuration-dependent cranked Nilsson-Strutinsky (CNS) calculations. Total energy surface calculations. Systematics of dynamic moment of inertia plots for bands in N=86 isotones 152Dy, 153Ho and 154Er.

doi: 10.1103/PhysRevC.88.031304
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2012HO15      Eur.Phys.J. A 48, 83 (2012)

D.Hojman, M.A.Cardona, B.Roussiere, J.Sauvage, M.A.Riley, S.L.Tabor, C.R.Hoffman, A.Aguilar, W.T.Cluff, T.Hinners, K.Lagergren, S.Lee, M.Perry, A.Pipidis, V.Tripathi

Band structures and shape coexistence in 187Pt

NUCLEAR REACTIONS 181Ta(11B, 5n), E=71 MeV; measured Eγ, Iγ, γγ-coin. 187Pt deduced levels, J, π, γ transitions, bands, backbending, high-spin states, γ linear polarization, shape coexistence; calculated E2/M1, M2/E1 mixing ratio.

doi: 10.1140/epja/i2012-12083-8
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2012RE23      J.Phys.:Conf.Ser. 381, 012066 (2012)

J.P.Revill, E.S.Paul, X.Wang, M.A.Riley, J.Simpson, J.Ollier, A.J.Boston, M.P.Carpenter, C.J.Chiara, C.Hoffman, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, J.M.Rees, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Relative quadrupole moments of exotic shapes at ultrahigh spin in 154Er: calibrating the TSD/SD puzzle

NUCLEAR REACTIONS 110Pd(48Ti, X), E=215 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere, Doppler shift. 154Er deduced high spin (ultrahigh) transition quadrupole moment using DSAAM (Doppler shift attenuation method), axial superdeformed shape, triaxial strongly deformed shape, rotational bands, inertia moments.Inertia moments compared with those obtained in 152Dy and 153Ho.

doi: 10.1088/1742-6596/381/1/012066
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2012WA39      J.Phys.:Conf.Ser. 381, 012065 (2012)

X.Wang, M.A.Riley, J.Simpson, E.S.Paul, R.V.F.Janssens, A.D.Ayangeakaa, H.C.Boston, M.P.Carpenter, C.J.Chiara, U.Garg, P.Hampson, D.J.Hartley, C.R.Hoffman, D.S.Judson, F.G.Kondev, T.Lauritsen, N.M.Lumley, J.Matta, S.Miller, P.J.Nolan, J.Oilier, M.Petri, D.C.Radford, J.M.Rees, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Collective structures up to spin ∼ 65h-(bar) in the N = 90 isotones 158Er and 157Ho

NUCLEAR REACTIONS 114Cd(48Ca, X)158Er, E=215 MeV;124Sn(37Cl, X)157Ho, E=177 MeV; measured Eγ, Iγ, γγ-coin using Compton-suppressed HPGe detectors of Gammasphere; analyzed Doppler shifts. 158Er, 157Ho deduced high-spin (ultrahigh-spin) rotational bands, transition quadrupole moments, Doppler shift vs Eγ.

doi: 10.1088/1742-6596/381/1/012065
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2011HA25      Phys.Rev. C 83, 064307 (2011)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.G.Darby, U.Garg, Q.A.Ijaz, F.G.Kondev, S.Lakshmi, T.Lauritsen, A.Ludington, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, R.Pifer, E.P.Seyfried, U.Shirwadkar, I.Stefanescu, S.K.Tandel, J.R.Vanhoy, S.Zhu, S.Frauendorf

Rotational structures and the wobbling mode in 167Ta

NUCLEAR REACTIONS 120Sn(51V, 4n), E=235 MeV; measured Eγ, Iγ, γγ-coin γγ(θ) using Gammasphere array. 167Ta; deduced levels, J, π, multipolarity, B(M1)/B(E2), rotational bands, alignments, band crossing frequencies, band configurations. Comparison with particle-rotor model calculations, and trends in the wobbling phonon energies in 161,163,165,167Lu, and 167Ta.

doi: 10.1103/PhysRevC.83.064307
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2011MU19      Phys.Rev. C 84, 054320 (2011)

M.Mustafa, J.Ollier, J.Simpson, M.A.Riley, E.S.Paul, X.Wang, A.Aguilar, M.P.Carpenter, I.G.Darby, D.J.Hartley, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, M.Petri, J.M.Rees, J.P.Revill, S.V.Rigby, C.Teal, J.Thomson, C.Unsworth, S.Zhu, B.G.Carlsson, H.L.Ma, T.Mufti, I.Ragnarsson

Diverse collective excitations in 159Er up to high spin

NUCLEAR REACTIONS 116Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using Gammasphere array. 159Er; deduced levels, J, π, multipolarities, bands, triaxial SD band, configurations, alignment plots, band termination, oblate structures, unpaired band crossings; calculated potential energy surfaces. Comparison with cranked Nilsson-Strutinsky (CNS) calculations. systematics of γ-vibrational states in N=88-94 Er nuclei.

doi: 10.1103/PhysRevC.84.054320
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2011OL02      Phys.Rev. C 83, 044309 (2011)

J.Ollier, J.Simpson, M.A.Riley, E.S.Paul, X.Wang, A.Aguilar, M.P.Carpenter, I.G.Darby, D.J.Hartley, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, M.Petri, J.M.Rees, S.V.Rigby, C.Teal, J.Thomson, C.Unsworth, S.Zhu, A.Kardan, I.Ragnarsson

Structure changes in 160Er from low to ultrahigh spin

NUCLEAR REACTIONS 116Cd(48Ca, 4n), E=215 MeV; measured Eγ, Iγ, γγ-coin, angular distributions using Gammasphere Spectrometer. 160Er; deduced levels, J, π, rotational bands, triaxial strongly-deformed (TSD) bands, multipolarity, configurations, angular momentum alignments, B(M1)/B(E2) ratios, potential energy surfaces, dynamic moment of inertia plots, ultra-high spin regime. Comparison with cranked Nilsson-Strutinsky (CNS) calculations.

doi: 10.1103/PhysRevC.83.044309
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2011OL03      Phys.Rev. C 84, 027302 (2011)

J.Ollier, J.Simpson, M.A.Riley, E.S.Paul, X.Wang, A.Aguilar, M.P.Carpenter, I.G.Darby, D.J.Hartley, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, M.Petri, S.V.Rigby, C.Teal, J.Thomson, C.Unsworth, S.Zhu

High-spin yrast structure of 159Ho

NUCLEAR REACTIONS 116Cd(48Ca, 4np), E=215 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array and ATLAS facility at ANL. 159Ho; deduced levels, J, π, rotational bands, configurations, alignments, signature splitting. Comparison with systematics of signature splittings in N=92 isotones 155Eu, 157Tb, 159Ho, 161Tm, 163Lu, 165Ta; and alignments in 160Er, 155,157,159,161,163,165Ho.

doi: 10.1103/PhysRevC.84.027302
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2011RE06      Phys.Rev. C 83, 044314 (2011)

J.M.Rees, E.S.Paul, M.A.Riley, J.Simpson, A.D.Ayangeakaa, H.C.Boston, M.P.Carpenter, C.J.Chiara, U.Garg, D.J.Hartley, R.V.F.Janssens, D.S.Judson, F.G.Kondev, T.Lauritsen, N.M.Lumley, J.Matta, P.J.Nolan, J.Ollier, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Unsworth, X.Wang, S.Zhu

Non-yrast positive-parity structures in the γ -soft nucleus 156Er

NUCLEAR REACTIONS 114Cd(48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin, angular distributions using Gammasphere spectrometer. 156Er; deduced levels, J, π, rotational bands, multipolarity, alignments, staggering parameter, configurations. Comparison with predictions of γ-rigid and γ-soft rotor model. Systematics of γ-vibrational bands for Z=68 isotopes and N=88 isotones.

doi: 10.1103/PhysRevC.83.044314
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2011WA14      Phys.Lett. B 702, 127 (2011)

X.Wang, M.A.Riley, J.Simpson, E.S.Paul, J.Ollier, R.V.F.Janssens, A.D.Ayangeakaa, H.C.Boston, M.P.Carpenter, C.J.Chiara, U.Garg, D.J.Hartley, D.S.Judson, F.G.Kondev, T.Lauritsen, N.M.Lumley, J.Matta, P.J.Nolan, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Quadrupole moments of collective structures up to spin ∼ 65h in 157Er and 158Er: A challenge for understanding triaxiality in nuclei

NUCLEAR REACTIONS 114Cd(48Ca, X)157Er/158Er, E=215 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced transition quadrupole moments for weakly populated collective bands, large deformations, stable triaxial shapes. Comparison with Nilsson-Strutinsky calculations.

doi: 10.1016/j.physletb.2011.07.007
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2010AG06      Phys.Rev. C 81, 064317 (2010)

A.Aguilar, D.J.Hartley, M.A.Riley, C.Teal, M.P.Carpenter, P.Chowdhury, M.Danchev, M.K.Djongolov, G.B.Hagemann, A.A.Hecht, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, W.C.Ma, W.H.Mohr, E.F.Moore, S.W.Odegard, L.L.Riedinger, G.Sletten, S.K.Tandel, J.R.Vanhoy, X.Wang, S.Zhu

Alignments, additivity, and signature inversion in odd-odd 170Ta: A comprehensive high-spin study

NUCLEAR REACTIONS 124Sn(51V, 5n), E=228 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. 170Ta; deduced levels, J, π, rotational bands, configurations, Routhians, signature inversions, B(M1)/B(E2) ratios.

doi: 10.1103/PhysRevC.81.064317
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2010HA26      Phys.Rev. C 82, 057302 (2010)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.G.Darby, U.Garg, Q.A.Ijaz, F.G.Kondev, S.Lakshmi, T.Lauritsen, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, E.P.Seyfried, U.Shirwadkar, I.Stefanescu, S.K.Tandel, J.R.Vanhoy, S.Zhu

Band crossings in 166Ta

NUCLEAR REACTIONS 120Sn(51V, 5n), E=235 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. 166Ta; deduced levels, J, π, rotational bands, alignments and B(M1)/B(E2) ratios. Comparison of alignments with those in 165Hf bands. Comparison with theoretical B(M1)/B(E2) ratios.

doi: 10.1103/PhysRevC.82.057302
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2010MU13      Phys.Rev. C 82, 054316 (2010)

G.Mukherjee, P.Chowdhury, F.G.Kondev, P.M.Walker, G.D.Dracoulis, R.D'Alarcao, I.Shestakova, K.Abu Saleem, I.Ahmad, M.P.Carpenter, A.Heinz, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, C.J.Lister, D.Seweryniak, I.Wiedenhoever, D.M.Cullen, C.Wheldon, D.L.Balabanski, M.Danchev, T.M.Goon, D.J.Hartley, L.L.Riedinger, O.Zeidan, M.A.Riley, R.A.Kaye, G.Sletten

K-hindered decay of a six-quasiparticle isomer in 176Hf

NUCLEAR REACTIONS 130Te(48Ca, 2n), E=194 MeV; measured Eγ, Iγ, γγ-coin, half-lives using Gammasphere array. Beam-on, beam-off measurements of γ spectra. 176Hf; deduced levels, J, π, rotational bands, isomers, multipolarity, configurations, reduced hindrance factors for K-isomers.

doi: 10.1103/PhysRevC.82.054316
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2010WA36      Phys.Rev. C 82, 034315 (2010)

X.Wang, D.J.Hartley, M.A.Riley, L.L.Riedinger, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.Darby, U.Garg, Q.Ijaz, R.V.F.Janssens, F.G.Kondev, S.Lakshmi, T.Lauritsen, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, E.P.Seyfried, I.Stefanescu, S.K.Tandel, U.S.Tandel, C.Teal, J.R.Vanhoy, S.Zhu

Multi-quasiparticle structures up to spin ∼ 44h in the odd-odd nucleus 168Ta

NUCLEAR REACTIONS 120Sn(51V, 3n), E=235 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array. 168Ta, deduced levels, J, π, B(M1)/B(E2) values, energy staggerings of signature partners, alignments, two-quasiparticle bands, configurations. Comparisons with cranked shell model calculations, and with band structures of 162,164,166Tm, 164,166,169Lu, 167Hf and 166,167,170Ta.

doi: 10.1103/PhysRevC.82.034315
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2009HA33      Phys.Rev. C 80, 041304 (2009); Publishers Note, Phys.Rev. C 80, 059901 (2009)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.G.Darby, U.Garg, Q.A.Ijaz, F.G.Kondev, S.Lakshmi, T.Lauritsen, A.Ludington, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, R.Pifer, E.P.Seyfried, I.Stefanescu, S.K.Tandel, U.Tandel, J.R.Vanhoy, X.Wang, S.Zhu, I.Hamamoto, S.Frauendorf

Wobbling mode in 167Ta

NUCLEAR REACTIONS 120Sn(51V, 4n), E=235 MeV; measured Eγ, Iγ, γγ-coin and γγ(θ) using Gammasphere array. 167Ta; deduced levels, J, π, triaxial superdeformed bands, normal deformed bands, dynamic moments of inertia, alignments and rotational frequency. Comparison with ultimate cranked (UC) calculations.

doi: 10.1103/PhysRevC.80.041304
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2009OL09      Phys.Rev. C 80, 064322 (2009)

J.Ollier, J.Simpson, X.Wang, M.A.Riley, A.Aguilar, C.Teal, E.S.Paul, P.J.Nolan, M.Petri, S.V.Rigby, J.Thomson, C.Unsworth, M.P.Carpenter, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, S.Zhu, D.J.Hartley, I.G.Darby, I.Ragnarsson

Ultrahigh-spin spectroscopy of 159, 160Er: Observation of triaxial strongly deformed structures

NUCLEAR REACTIONS 116Cd(48Ca, X), E=215 MeV; measured Eγ, Iγ, γγ using Gammasphere array. 159,160Er; deduced levels, J, π, triaxial strongly deformed (TSD) bands, dynamical moment of inertia plots, and configurations. Calculated potential energy surfaces and single-particle proton and neutron energies (Routhians) with Cranked Nilsson-Strutinsky approach.

doi: 10.1103/PhysRevC.80.064322
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2009PA17      Phys.Rev. C 79, 044324 (2009)

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

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

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

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

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

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


2008AG04      Phys.Rev. C 77, 021302 (2008)

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

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

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

doi: 10.1103/PhysRevC.77.021302
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2008TE07      Phys.Rev. C 78, 017305 (2008)

C.Teal, K.Lagergren, A.Aguilar, D.J.Hartley, M.A.Riley, J.Simpson, M.P.Carpenter, U.Garg, R.V.F.Janssens, D.T.Joss, F.G.Kondev, T.Lauritsen, C.J.Lister, X.Wang, S.Zhu, I.Ragnarsson

Triaxial strongly deformed bands in 160, 161Tm

NUCLEAR REACTIONS 128Te(37Cl, 5n), (37Cl, 4n), E=170 MeV; measured Eγ, Iγ, γγ-coin. 160,161Tm; deduced levels, J, π, triaxial strongly-deformed bands(TSD), moments of inertia. 154,157Er, 163Lu, 153,163Tm; systematics of bands. Comparison with potential energy surfaces calculated using cranked Nilsson Strutinsky calculations. Superdeformation.

doi: 10.1103/PhysRevC.78.017305
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2007CA25      Phys.Rev. C 75, 064314 (2007)

D.B.Campbell, R.W.Laird, M.A.Riley, J.Simpson, F.G.Kondev, D.J.Hartley, R.V.F.Janssens, T.B.Brown, M.P.Carpenter, P.Fallon, S.M.Fischer, T.Lauritsen, D.Nisius, I.Ragnarsson

Rotational structures and their evolution with spin in 152Gd

NUCLEAR REACTIONS 124Sn(36S, 4nα)152Gd, e=175 MeV; measured Eγ, Iγ, γγ-coinc using the Gammasphere. 152Gd deduced levels, J, π. Compared results to model calculations.

doi: 10.1103/PhysRevC.75.064314
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2007PA03      Phys.Rev.Lett. 98, 012501 (2007)

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

Return of Collective Rotation in 157Er and 158Er at Ultrahigh Spin

NUCLEAR REACTIONS 114Cd(48Ca, 4n), (48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157,158Er deduced high-spin levels, J, π, configurations, collective rotation above band-terminating states. Gammasphere array, cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevLett.98.012501
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2006EV02      Phys.Rev. C 73, 064303 (2006)

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

High-spin structure in 157Er up to and above band termination

NUCLEAR REACTIONS 114Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157Er deduced high-spin levels, J, π, configurations, B(M1)/B(E2), band termination. Gammasphere array.

doi: 10.1103/PhysRevC.73.064303
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2006HA46      Phys.Rev. C 74, 054314 (2006); Erratum Phys.Rev. C 75, 029902 (2007)

D.J.Hartley, W.H.Mohr, J.R.Vanhoy, M.A.Riley, A.Aguilar, C.Teal, R.V.F.Janssens, M.P.Carpenter, A.A.Hecht, T.Lauritsen, E.F.Moore, S.Zhu, F.G.Kondev, M.K.Djongolov, M.Danchev, L.L.Riedinger, G.B.Hagemann, G.Sletten, P.Chowdhury, S.K.Tandel, W.C.Ma, S.W.Odegard

Multiple band structures in 169Ta

NUCLEAR REACTIONS 124Sn(51V, 6n), E=228 MeV; measured Eγ, Iγ, γγ-coin. 169Ta deduced high-spin levels, J, π, configurations. Gammasphere array.

doi: 10.1103/PhysRevC.74.054314
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2006JO04      Phys.Rev. C 74, 014302 (2006)

D.T.Joss, J.Simpson, D.E.Appelbe, C.J.Barton, D.D.Warner, K.Lagergren, B.Cederwall, B.Hadinia, S.Eeckhaudt, T.Grahn, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, H.Kettunen, M.Leino, A.-P.Leppanen, P.Nieminen, J.Pakarinen, J.Perkowski, P.Rahkila, C.Scholey, J.Uusitalo, K.Van de Vel, R.D.Page, E.S.Paul, D.R.Wiseman, M.A.Riley

Yrast states and band crossings in the neutron-deficient platinum isotopes 169-173Pt

NUCLEAR REACTIONS 112Sn(60Ni, 2n), (60Ni, 3n), E=266 MeV; Sn(60Ni, xn)171Pt/172Pt/173Pt, E=266 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 170,172,173Pt deduced levels, J, π, configurations. 169,171,173Pt deduced transitions. Jurogam array, recoil-decay tagging.

doi: 10.1103/PhysRevC.74.014302
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2006LE17      Phys.Rev. C 73, 044321 (2006)

S.Lee, S.L.Tabor, T.Baldwin, D.B.Campbell, I.Calderin, C.Chandler, M.W.Cooper, C.R.Hoffman, K.W.Kemper, J.Pavan, A.Pipidis, M.A.Riley, M.Wiedeking

Structure of 26Na from the 14C(14C, d) reaction

NUCLEAR REACTIONS 14C(14C, d), E=22 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 26Na deduced levels, J, π, configurations. Shell model analysis.

doi: 10.1103/PhysRevC.73.044321
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2006RI13      Phys.Scr. T125, 123 (2006)

M.A.Riley, M.K.Djongolov, A.O.Evans, D.J.Hartley, R.V.F.Janssens, E.S.Paul, A.Pipidis, J.Simpson, A.A.Aguilar, D.E.Appelbe, C.R.Bingham, D.B.Campbell, M.P.Carpenter, P.Chowdhury, P.T.W.Choy, R.M.Clark, M.Cromaz, D.M.Cullen, M.Danchev, G.D.Dracoulis, P.Fallon, A.Gorgen, G.B.Hagemann, D.T.Joss, J.Goon, R.A.Kaye, T.L.Khoo, F.G.Kondev, R.W.Laird, K.Lagergren, T.Lauritsen, A.O.Macchiavelli, B.McClain, E.F.Moore, G.Mukherjee, E.Ngijoi-Yogo, P.J.Nolan, H.I.Park, L.L.Riedinger, G.Sletten, S.K.Tandel, P.M.Walker, D.Ward, I.Ragnarsson, F.Saric, J.Zhang

Observation of states beyond band termination in 156, 157, 158Er and strongly deformed structures in 173, 174, 175Hf

NUCLEAR REACTIONS 114Cd(48Ca, 4n), (48Ca, 5n), (48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 156,157,158Er deduced high-spin levels, states above band termination. Gammasphere array.

NUCLEAR STRUCTURE 173,174,175Hf; analyzed data; deduced superdeformed bands features.

doi: 10.1088/0031-8949/2006/T125/028
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2005HA05      Phys.Lett. B 608, 31 (2005)

D.J.Hartley, M.K.Djongolov, L.L.Riedinger, G.B.Hagemann, R.V.F.Janssens, F.G.Kondev, E.F.Moore, M.A.Riley, A.Aguilar, C.R.Bingham, D.B.Campbell, M.P.Carpenter, P.Chowdhury, M.Cromaz, D.M.Cullen, M.Danchev, G.D.Dracoulis, P.Fallon, J.Goon, R.A.Kaye, T.L.Khoo, R.W.Laird, T.Lauritsen, A.O.Macchiavelli, B.McClain, G.Mukherjee, E.Ngijoi-Yogo, H.I.Park, G.Sletten, S.K.Tandel, P.M.Walker, J.-Y.Zhang

Wobbling excitations in strongly deformed Hf nuclei?

NUCLEAR REACTIONS 130Te(48Ca, 4n), (48Ca, 5n), E=200, 205 MeV; measured Eγ, Iγ, γγ-coin, DSA. 174Hf deduced superdeformed bands transitions, T1/2, quadrupole moments. 173Hf deduced superdeformed band transitions. Gammasphere array, comparisons with model predictions.

doi: 10.1016/j.physletb.2005.01.007
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2005HA71      Phys.Rev. C 72, 064325 (2005)

D.J.Hartley, W.H.Mohr, J.R.Vanhoy, M.A.Riley, A.Aguilar, C.Teal, R.V.F.Janssens, M.P.Carpenter, A.A.Hecht, T.Lauritsen, E.F.Moore, S.Zhu, F.G.Kondev, M.K.Djongolov, M.Danchev, L.L.Riedinger, G.B.Hagemann, G.Sletten, P.Chowdhury, S.K.Tandel, W.C.Ma, S.W.Odegard

Detailed high-spin spectroscopy and the search for the wobbling mode in 171Ta

NUCLEAR REACTIONS 124Sn(51V, 4n), E=228 MeV; measured Eγ, Iγ, γγ-coin. 171Ta deduced high-spin levels, J, π, configurations. No wobbling sequence seen. Gammasphere array.

doi: 10.1103/PhysRevC.72.064325
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2005JO18      J.Phys.(London) G31, S1715 (2005)

D.T.Joss, J.Simpson, D.E.Appelbe, K.Lagergren, C.J.Barton, B.Cederwall, S.Eeckhaudt, T.Grahn, P.M.Jones, R.Julin, S.Juutinen, B.Hadinia, H.Kettunen, M.Leino, A.-P.Leppanen, P.Nieminen, R.D.Page, J.Pakarinen, E.S.Paul, J.Perkowski, P.Rahkila, M.A.Riley, C.Scholey, J.Uusitalo, K.Van de Vel, D.D.Warner, D.R.Wiseman

Yrast structures in the light Pt isotopes 169-173Pt

NUCLEAR REACTIONS Sn(58Ni, xn)169Pt/170Pt/171Pt/172Pt/173Pt, E=266 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 169,170,171,172,173Pt deduced levels, J, π. Recoil-decay tagging.

doi: 10.1088/0954-3899/31/10/060
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2005LA32      Phys.Rev. C 72, 057303 (2005)

K.Lagergren, M.A.Riley, J.Simpson, D.E.Appelbe, P.Bednarczyk, D.B.Campbell, C.Chandler, P.T.W.Choy, D.Curien, D.T.Joss, E.S.Paul

Observation of the second proton alignment in 160Tm

NUCLEAR REACTIONS 130Te(35Cl, 5n), E=170 MeV; measured Eγ, Iγ, γγ-coin. 160Tm deduced high-spin levels, J, π, configurations. Euroball array.

doi: 10.1103/PhysRevC.72.057303
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2005PI21      Phys.Rev. C 72, 064307 (2005)

A.Pipidis, M.A.Riley, J.Simpson, R.V.F.Janssens, F.G.Kondev, D.E.Appelbe, A.P.Bagshaw, M.A.Bentley, T.B.Brown, M.P.Carpenter, D.M.Cullen, D.B.Campbell, P.J.Dagnall, P.Fallon, S.M.Fischer, G.B.Hagemann, D.J.Hartley, K.Lagergren, R.W.Laird, T.Lauritsen, J.C.Lisle, D.Nisius, S.L.Shepherd, A.G.Smith, S.Tormanen, I.Ragnarsson

Structural behavior of 157, 158, 159Dy in the I=30-50 (h-bar) spin regime

NUCLEAR REACTIONS 124Sn(36S, 3n), E=165 MeV; 130Te(36S, 3nα), (36S, 4nα), (34S, 3nα), E=170 MeV; measured Eγ, Iγ, γγ-coin. 157,158,159Dy deduced high-spin levels, J, π, configurations. Gammasphere, Euroball arrays.

doi: 10.1103/PhysRevC.72.064307
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2005RI16      J.Phys.(London) G31, S1735 (2005)

M.A.Riley, M.K.Djongolov, A.O.Evans, D.J.Hartley, R.V.F.Janssens, E.S.Paul, J.Simpson, A.A.Aguilar, D.E.Appelbe, C.R.Bingham, D.B.Campbell, M.P.Carpenter, P.Chowdhury, P.T.W.Choy, R.M.Clark, M.Cromaz, D.M.Cullen, M.Danchev, G.D.Dracoulis, P.Fallon, A.Gorgen, G.B.Hagemann, D.T.Joss, J.Goon, R.A.Kaye, T.L.Khoo, F.G.Kondev, R.W.Laird, K.Lagergren, T.Lauritsen, A.O.Macchiavelli, B.McClain, E.F.Moore, G.Mukherjee, E.Ngijoi-Yogo, P.J.Nolan, H.I.Park, A.Pipidis, L.L.Riedinger, G.Sletten, S.K.Tandel, P.M.Walker, D.Ward, I.Ragnarsson, F.Saric, J.Zhang

Beyond band termination in 157Er and the search for wobbling excitations in strongly deformed 174Hf

NUCLEAR REACTIONS 114Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157Er deduced high-spin levels, J, π, band termination features. Gammasphere array.

NUCLEAR STRUCTURE 173,174Hf; analyzed superdeformed band transitions fractional Doppler shifts, transition quadrupole moments.

doi: 10.1088/0954-3899/31/10/064
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2005WI05      Phys.Rev.Lett. 94, 132501 (2005)

M.Wiedeking, S.L.Tabor, J.Pavan, A.Volya, A.L.Aguilar, I.J.Calderin, D.B.Campbell, W.T.Cluff, E.Diffenderfer, J.Fridmann, C.R.Hoffman, K.W.Kemper, S.Lee, M.A.Riley, B.T.Roeder, C.Teal, V.Tripathi, I.Wiedenhover

p-sd Shell Gap Reduction in Neutron-Rich Systems and Cross-Shell Excitations in 20O

NUCLEAR REACTIONS 10Be(14C, α), E=21.4 MeV; measured Eγ, Eα, αγ-, γγ-coin. 20O deduced levels, J, π, core excitation. Comparison with shell model predictions.

doi: 10.1103/PhysRevLett.94.132501
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2004EV01      Phys.Rev.Lett. 92, 252502 (2004)

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

High-Spin Structure beyond Band Termination in 157Er

NUCLEAR REACTIONS 114Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157Er deduced high-spin levels, J, π, configurations, feeding of band-terminating states. Gammasphere array, comparison with cranked mean-field calculations.

doi: 10.1103/PhysRevLett.92.252502
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2004RA08      Int.J.Mod.Phys. E13, 87 (2004)

I.Ragnarsson, F.G.Kondev, E.S.Paul, M.A.Riley, J.Simpson

The nuclear mass at finite angular momenta

NUCLEAR STRUCTURE Nd, Yb; analyzed data; deduced shell energies, pair correlation features. 109,110Sb, 113I, 114Xe, 135Nd, 152,154,156Dy, 163Lu, 194Hg, 192,194Pb; analyzed rotational band energies, superdeformation.

doi: 10.1142/S0218301304001771
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2004SC41      Phys.Rev. C 70, 054314 (2004)

D.T.Scholes, D.M.Cullen, F.G.Kondev, R.V.F.Janssens, M.P.Carpenter, D.J.Hartley, M.K.Djongolov, G.Sletten, G.Hagemann, C.Wheldon, P.M.Walker, K.Abu Saleem, I.Ahmad, D.L.Balabanski, P.Chowdhury, M.Danchev, G.D.Dracoulis, H.M.El-Masri, J.Goon, A.Heinz, R.A.Kaye, T.L.Khoo, T.Lauritsen, C.J.Lister, E.F.Moore, L.L.Riedinger, M.A.Riley, D.Seweryniak, I.Shestakova, I.Wiedenhover, O.Zeidan, J.-ye.Zhang

Highly deformed Bands in 175Hf

NUCLEAR REACTIONS 130Te(48Ca, 3n), E=194 MeV; measured Eγ, Iγ, γγ-coin. 175Hf deduced high-spin levels, J, π, highly deformed bands. Gammasphere array, cranked mean field calculations.

doi: 10.1103/PhysRevC.70.054314
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2003DJ01      Phys.Lett. B 560, 24 (2003)

M.K.Djongolov, D.J.Hartley, L.L.Riedinger, F.G.Kondev, R.V.F.Janssens, K.Abu Saleem, I.Ahmad, D.L.Balabanski, M.P.Carpenter, P.Chowdhury, D.M.Cullen, M.Danchev, G.D.Dracoulis, H.El-Masri, J.Goon, A.Heinz, R.A.Kaye, T.L.Khoo, T.Lauritsen, C.J.Lister, E.F.Moore, M.A.Riley, D.Seweryniak, I.Shestakova, G.Sletten, P.M.Walker, C.Wheldon, I.Wiedenhover, O.Zeidan, J.-Y.Zhang

Extending the region of triaxial superdeformation: candidate TSD bands in 174Hf

NUCLEAR REACTIONS 130Te(48Ca, 4n), E=194 MeV; measured Eγ, Iγ, γγ-coin. 174Hf deduced triaxial superdeformed bands. Gammasphere array, cranked mean-field calculations, comparisons with neighboring nuclides.

doi: 10.1016/S0370-2693(03)00328-9
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2003HO16      Phys.Rev. C 68, 034304 (2003)

C.R.Hoffman, S.L.Tabor, M.W.Cooper, T.Baldwin, D.B.Campbell, C.Chandler, K.W.Kemper, J.Pavan, A.Pipidis, M.A.Riley, M.Wiedeking, B.A.Brown

Structure of T=2 24Ne from 14C on 14C

NUCLEAR REACTIONS 14C(14C, α), E=22 MeV; measured Eγ, Iγ, Eα, γγ-, αγ-coin. 24Ne deduced levels, J, π, configurations. Comparison with shell model predictions, level systematics in neighboring isotopes.

doi: 10.1103/PhysRevC.68.034304
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2002BR52      Phys.Rev. C 66, 064320 (2002)

T.B.Brown, M.A.Riley, D.Campbell, D.J.Hartley, F.G.Kondev, J.Pfohl, R.V.F.Janssens, S.M.Fischer, D.Nisius, P.Fallon, W.C.Ma, J.Simpson, J.F.Sharpey-Schafer

Rotational band structures in N=89 153Gd

NUCLEAR REACTIONS 152Sm(α, 3n), E=37 MeV; 124Sn(36S, 3nα), E=165 MeV; measured Eγ, Iγ, γγ-coin. 153Gd deduced high-spin levels, J, π, configurations. 157Er; analyzed data; deduced levels J, π based on systematics. Gammasphere array.

doi: 10.1103/PhysRevC.66.064320
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2002CO11      Phys.Rev. C65, 051302 (2002)

M.W.Cooper, S.L.Tabor, T.Baldwin, D.B.Campbell, C.Chandler, C.R.Hoffman, K.W.Kemper, J.Pavan, A.Pipidis, M.A.Riley, M.Wiedeking

T = 5/2 27Na from 14C + 14C, and the N = 16 Shell Gap

NUCLEAR REACTIONS 14C(14C, p), E=22 MeV; measured Eγ, Iγ, Ep, γγ-, (charged particle)γ-coin. 27Na deduced levels, J, π, configurations. Shell model analysis.

doi: 10.1103/PhysRevC.65.051302
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2002LA09      Phys.Rev.Lett. 88, 152501 (2002)

R.W.Laird, F.G.Kondev, M.A.Riley, D.E.Archer, T.B.Brown, R.M.Clark, M.Devlin, P.Fallon, D.J.Hartley, I.M.Hibbert, D.T.Joss, D.R.LaFosse, P.J.Nolan, N.J.O'Brien, E.S.Paul, J.Pfohl, D.G.Sarantites, R.K.Sheline, S.L.Shepherd, J.Simpson, R.Wadsworth, M.T.Matev, A.V.Afanasjev, J.Dobaczewski, G.A.Lalazissis, W.Nazarewicz, W.Satula

Quadrupole Moments of Highly Deformed Structures in the A ∼ 135 Region: Probing the single-particle motion in a rotating potential

NUCLEAR REACTIONS 105Pd(35Cl, xnypzα), E=173 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 130,131,132Pr, 133,135Nd, 133,134,136Pm, 135,137Sm deduced rotational bands transition quadrupole moments, additivity of single-particle moments. Cranked Skyrme-Hartree-Fock and cranked relativistic mean field calculations. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevLett.88.152501
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2002MA10      Phys.Rev. C65, 034312 (2002)

W.C.Ma, R.V.F.Janssens, T.L.Khoo, I.Ragnarsson, M.A.Riley, M.P.Carpenter, J.R.Terry, J.P.Zhang, I.Ahmad, P.Bhattacharyya, P.J.Daly, S.M.Fischer, J.H.Hamilton, T.Lauritsen, D.T.Nisius, A.V.Ramayya, R.K.Vadapalli, P.G.Varmette, J.W.Watson, C.T.Zhang, S.J.Zhu

Competition between Terminating and Collective Structures above Spin 40(h-bar) in 154Dy

NUCLEAR REACTIONS 122Sn(36S, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. 154Dy deduced high-spin levels, J, π, configurations, band termination features. Gammasphere array. Comparison with mean-field calculations.

doi: 10.1103/PhysRevC.65.034312
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2002SH09      Phys.Rev. C65, 034320 (2002)

S.L.Shepherd, J.Simpson, A.Dewald, P.Petkov, P.J.Nolan, M.A.Riley, A.J.Boston, T.B.Brown, R.M.Clark, P.Fallon, D.J.Hartley, S.Kasemann, R.Krucken, P.von Brentano, R.W.Laird, E.S.Paul, R.Peusquens

High Precision Quadrupole Moment Measurements of States up to I = 20(h-bar) in the Yrast Band of 158Er

NUCLEAR REACTIONS 122Sn(40Ar, 4n), E=185 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 158Er levels deduced T1/2, B(E2), transition quadrupole moments. Gammasphere array, recoil-distance technique.

doi: 10.1103/PhysRevC.65.034320
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2002TA10      Yad.Fiz. 65, 745 (2002); Phys.Atomic Nuclei 65, 713 (2002)

S.L.Tabor, M.W.Cooper, D.B.Campbell, C.Chandler, K.W.Kemper, A.Pipidis, M.A.Riley, M.Wiedeking, I.Ragnarsson

Structure of Neutron-Rich s-d Shell Nuclei

NUCLEAR REACTIONS 14C(14C, 2n), (14C, p), (14C, α), E=22 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 26Mg, 27Na, 24Ne deduced levels, J, π. Comparison with shell model results.

doi: 10.1134/1.1471279
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2001CO05      Nucl.Phys. A682, 131c (2001)

M.W.Cooper, D.B.Campbell, C.Chandler, K.W.Kemper, A.Pipidis, I.Ragnarsson, M.A.Riley, M.Wiedeking, S.L.Tabor

New γ Transitions in 27Na from 14C on 14C

NUCLEAR REACTIONS 14C(14C, p), E=22 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 27Na deduced levels, J, π. Comparison with shell model.

doi: 10.1016/S0375-9474(00)00631-X
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2001HA47      Phys.Rev. C64, 031304 (2001)

D.J.Hartley, L.L.Riedinger, M.A.Riley, D.L.Balabanski, F.G.Kondev, R.W.Laird, J.Pfohl, D.E.Archer, T.B.Brown, R.M.Clark, M.Devlin, P.Fallon, I.M.Hibbert, D.T.Joss, D.R.LaFosse, P.J.Nolan, N.J.O'Brien, E.S.Paul, D.G.Sarantites, R.K.Sheline, S.L.Shepherd, J.Simpson, R.Wadsworth, J.-Y.Zhang, P.B.Semmes, F.Donau

Detailed Spectroscopy of the Chiral-Twin Candidate Bands in 136Pm

NUCLEAR REACTIONS 105Pd(35Cl, 2n2p), E=173 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 136Pm deduced high-spin levels, J, π, configurations, B(M1), B(E2). Comparisons with neighboring nuclides, model predictions. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.64.031304
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2001RI20      Acta Phys.Pol. B32, 2683 (2001)

M.A.Riley, R.W.Laird, F.G.Kondev, D.J.Hartley, D.E.Archer, T.B.Brown, R.M.Clark, M.Devlin, P.Fallon, I.M.Hibbert, D.T.Joss, D.R.LaFosse, P.J.Nolan, N.J.O'Brien, E.S.Paul, J.Pfohl, D.G.Sarantites, R.K.Sheline, S.L.Shepherd, J.Simpson, R.Wadsworth, M.T.Matev, A.V.Afanasjev, J.Dobaczewski, G.A.Lalazissis, W.Nazarewicz, W.Satula

Global Lifetime Measurements of Highly-Deformed and Other Rotational Structures in the A ∼ 135 Light Rare-Earth Region: Probing the single-particle motion in a rotating potential

NUCLEAR REACTIONS 105Pd(35Cl, xnypzα), E=173 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 130,131,132,133Pr, 132,133,134,135Nd, 133,134,136Pm, 135,136,137Sm deduced rotational bands T1/2, transition quadrupole moments. Gammasphere, Microball arrays. Comparisons with model predictions.


2000PF01      Phys.Rev. C62, 031304 (2000)

J.Pfohl, R.W.Laird, M.A.Riley, F.G.Kondev, D.E.Archer, T.B.Brown, R.M.Clark, M.Devlin, P.Fallon, D.J.Hartley, I.M.Hibbert, D.T.Joss, D.R.LaFosse, P.J.Nolan, N.J.O'Brien, E.S.Paul, D.G.Sarantites, R.K.Sheline, S.L.Shepherd, J.Simpson, R.Wadsworth, Y.Sun, A.V.Afanasjev, I.Ragnarsson

Highly Deformed Rotational Structures in 136Pm

NUCLEAR REACTIONS 105Pd(35Cl, 2n2p), E=173, 180 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 136Pm deduced high-spin levels, J, π, T1/2, configurations, quadrupole moments. Comparison with model predictions. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.62.031304
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2000SH18      Phys.Rev. C61, 057301 (2000)

R.K.Sheline, M.A.Riley

Secondary Maximum in Octupole Correlations in the Actinides Near 238, 240Pu

NUCLEAR STRUCTURE Rn, Ra, Th, U, Pu; analyzed 1- level energies, α-decay hindrance factors for even-even isotopes. 238,240Pu deduced increased octupole correlations.

doi: 10.1103/PhysRevC.61.057301
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2000SI26      Phys.Rev. C62, 024321 (2000)

J.Simpson, A.P.Bagshaw, A.Pipidis, M.A.Riley, M.A.Bentley, D.M.Cullen, P.J.Dagnall, G.B.Hagemann, S.L.King, R.W.Laird, J.C.Lisle, S.Shepherd, A.G.Smith, S.Tormanen, A.V.Afanasjev, I.Ragnarsson

Discrete Line γ-Ray Spectroscopy in the (50-60) (h-bar) Spin Domain of 161, 162Er

NUCLEAR REACTIONS 130Te(36S, 4n), (36S, 5n), E=170 MeV; measured Eγ, Iγ, γγ-coin. 161,162Er deduced high-spin levels, J, π, configurations, unpaired band crossings. Euroball array, cranked mean-field calculations.

doi: 10.1103/PhysRevC.62.024321
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1999CO10      Phys.Rev. C59, 2268 (1999)

M.W.Cooper, D.J.Hartley, R.A.Kaye, K.W.Kemper, M.A.Riley, C.Smith, G.Z.Solomon, D.A.Soltysik, S.L.Tabor

Parity Measurements in Odd-Odd 86Nb

NUCLEAR REACTIONS 58Ni(32S, n3p), E=130 MeV; measured Eγ, Iγ(θ), γ-ray linear polarization. 86Nb deduced levels J, π. Clover detector.

doi: 10.1103/PhysRevC.59.2268
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1999DO02      Phys.Rev. C59, 71 (1999)

J.Doring, D.Ulrich, G.D.Johns, M.A.Riley, S.L.Tabor

Signature Inversion and the First Observation of a Magnetic Dipole Band in Odd-Odd Rubidium Isotope 82Rb

NUCLEAR REACTIONS 68Zn(18O, 3np), E=56 MeV; measured Eγ, Iγ, γγ-coin. 82Rb deduced high-spin levels, J, π, configurations, signature inversion, magnetic dipole band. TRS calculations, comparisons with nearby nuclides.

doi: 10.1103/PhysRevC.59.71
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1999DO13      Phys.Rev. C60, 014314 (1999)

J.Doring, G.D.Johns, R.A.Kaye, M.A.Riley, S.L.Tabor

Band Crossings in the Positive-Parity High-Spin States of 83Rb and 85Y

NUCLEAR REACTIONS 68Zn(18O, 2np), E=56 MeV; 59Co(28Si, 2p), E=99 MeV; measured Eγ, Iγ, γγ-coin. 83Rb, 85Y deduced high-spin levels, J, π, deformation. TRS calculations. Rotational band systematics in N=46 isotones discussed.

doi: 10.1103/PhysRevC.60.014314
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1999HA04      Phys.Rev. C59, 1171 (1999)

D.J.Hartley, J.L.Allen, T.B.Brown, F.G.Kondev, J.Pfohl, M.A.Riley, S.M.Fischer, R.V.F.Janssens, D.T.Nisius, P.Fallon, W.C.Ma, J.Simpson

Second Proton and Neutron Alignments in the Doubly-Odd Nuclei 154, 156Tb

NUCLEAR REACTIONS 124Sn(36S, 3np), (36S, 5np), E=160, 175 MeV; measured Eγ, Iγ, γγ-coin. 154,156Tb deduced high-spin levels, J, π, configurations. Gammasphere array.

doi: 10.1103/PhysRevC.59.1171
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1999KO03      Phys.Rev. C59, R575 (1999)

F.G.Kondev, M.A.Riley, D.J.Hartley, R.W.Laird, T.B.Brown, M.Lively, K.W.Kemper, J.Pfohl, S.L.Tabor, R.K.Sheline

Configuration and Unusually Fast Decay of the Kπ = 16- Four-Quasiparticle Isomer in 182Re

NUCLEAR REACTIONS 176Yb(11B, 5n), E=70 MeV; measured Eγ, Iγ, γγ(θ). 182Re deduced high-spin levels, J, π, δ, configurations. Lipkin-Nogami quasiparticle model.

doi: 10.1103/PhysRevC.59.R575
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1999KO19      J.Phys.(London) G25, 893 (1999)

F.G.Kondev, M.A.Riley, T.B.Brown, R.M.Clark, M.Devlin, P.Fallon, D.J.Hartley, I.M.Hibbert, D.T.Joss, D.R.LaFosse, R.W.Laird, F.Lerma, M.Lively, P.J.Nolan, N.J.O'Brien, E.S.Paul, J.Pfohl, D.G.Sarantites, R.K.Sheline, S.L.Shepherd, J.Simpson, R.Wadsworth

Relative Quadrupole Deformations for Structures in Odd Proton (Z = 59)Pr Nuclei Near Mass ∼ 130

NUCLEAR REACTIONS 105Pd(35Cl, n2α), (35Cl, 2n2α), (35Cl, 2n2pα), E=173 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 130,131,132Pr deduced high-spin levels, J, π, configurations. Gammasphere, microball arrays.

doi: 10.1088/0954-3899/25/4/063
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1999KO20      J.Phys.(London) G25, 897 (1999)

F.G.Kondev, M.A.Riley, J.Simpson, R.V.F.Janssens, A.V.Afanasjev, I.Ragnarsson, T.B.Brown, D.J.Hartley, M.P.Carpenter, P.Fallon, S.M.Fischer, T.L.Khoo, T.Lauritsen, W.C.Ma, J.F.Sharpey-Schafer, J.C.Lisle, C.A.Kalfas

Exploring the I = 50-60 (h-bar) Domain: Collective and terminating structures in 156Dy, 159Er and 160Er

NUCLEAR REACTIONS 124Sn(36S, 4n), E=165 MeV; 116Cd(48Ca, 4n), (48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 156Dy, 159,160Er deduced high-spin levels, J, π, configurations. Eurogam array.

doi: 10.1088/0954-3899/25/4/064
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1999KO21      Phys.Rev. C59, 3076 (1999)

F.G.Kondev, M.A.Riley, D.J.Hartley, T.B.Brown, R.W.Laird, M.Lively, J.Pfohl, R.K.Sheline, R.M.Clark, P.Fallon, D.G.Sarantites, M.Devlin, D.R.LaFosse, F.Lerma, R.Wadsworth, I.M.Hibbert, N.J.O'Brien, E.S.Paul, D.T.Joss, P.J.Nolan, S.L.Shepherd, D.E.Archer, J.Simpson

Relative Quadrupole Deformations for Decoupled Structures in the Odd-Odd 130Pr and 132Pr Nuclei

NUCLEAR REACTIONS 105Pd(35Cl, 2n2α), (35Cl, 2n2pα), E=173, 180 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 130,132Pr deduced high-spin levels, J, π, T1/2, configurations, quadrupole moments. Quasiparticle blocking calculations, Nilsson model, Lipkin-Nogami method.

doi: 10.1103/PhysRevC.59.3076
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1999KO28      Phys.Rev. C60, 011303 (1999)

F.G.Kondev, M.A.Riley, D.J.Hartley, T.B.Brown, R.W.Laird, M.Lively, J.Pfohl, R.K.Sheline, E.S.Paul, D.T.Joss, P.J.Nolan, S.L.Shepherd, R.M.Clark, P.Fallon, D.G.Sarantites, M.Devlin, D.R.LaFosse, F.Lerma, R.Wadsworth, I.M.Hibbert, N.J.O'Brien, J.Simpson, D.E.Archer

Differential Quadrupole Moment Measurements of the 1/2+ [660](i13/2) Neutron Intruder Band in 133Nd and 135Nd

NUCLEAR REACTIONS 105Pd(35Cl, 2npα), (35Cl, 2n3p), E=173 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 133,135Nd deduced rotational bands quadrupole moments. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.60.011303
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1998AR08      Phys.Rev. C57, 2924 (1998)

D.E.Archer, M.A.Riley, T.B.Brown, D.J.Hartley, J.Doring, G.D.Johns, J.Pfohl, S.L.Tabor, J.Simpson, Y.Sun, J.L.Egido

Rotational Bands in 170Yb and 171Yb and the Projected Shell Model

NUCLEAR REACTIONS 170Er(α, 3n), (α, 4n), E=35, 40 MeV; measured Eγ, Iγ, γγ-coin, DCO. 170,171Yb deduced high-spin levels, J, π, band structure, configurations. Cranked shell-model analysis, projected shell-model calculations.

doi: 10.1103/PhysRevC.57.2924
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1998BO20      Eur.Phys.J. A 2, 245 (1998)

S.Bouneau, F.Azaiez, J.Duprat, I.Deloncle, M.G.Porquet, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, B.J.P.Gall, M.Kaci, Y.Le Coz, M.Meyer, E.S.Paul, N.Redon, M.A.Riley, H.Sergolle, J.F.Sharpey-Schafer, J.Timar, A.N.Wilson, R.Wyss

Decay from Superdeformed Yrast States to Normal Deformed States in 193Tl

NUCLEAR REACTIONS 181Ta(16O, 4n), E=110 MeV; measured Eγ, Iγ, γγ-coin. 193Tl deduced high-spin levels J, π, superdeformed bands, linking transitions.

doi: 10.1007/s100500050115
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1998BO32      Phys.Rev. C58, 3260 (1998)

S.Bouneau, F.Azaiez, J.Duprat, I.Deloncle, M.G.Porquet, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, B.J.P.Gall, M.Kaci, Y.Le Coz, M.Meyer, E.S.Paul, N.Redon, M.A.Riley, H.Sergolle, J.F.Sharpey-Schafer, J.Timar, A.N.Wilson, R.Wyss, P.-H.Heenen

Intrinsic Proton States Around the Superdeformed Shell Closure Z = 80

NUCLEAR REACTIONS 181Ta(16O, 4n), E=110 MeV; measured Eγ, Iγ, γγ-coin. 193Tl deduced superdeformed bands transitions, moments of inertia, configurations, decoupling parameter. Intrinsic proton states. Eurogam II. Cranked Woods-Saxon calculations.

doi: 10.1103/PhysRevC.58.3260
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1998CU01      Phys.Rev. C57, 2170 (1998)

D.M.Cullen, C.-H.Yu, D.Cline, M.Simon, D.C.Radford, M.A.Riley, J.Simpson

High-Spin States and the First Signs of Band Termination in 156Ho

NUCLEAR REACTIONS 148Nd(14N, 6n), E=96 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 156Ho deduced high-spin levels, J, π, rotational bands, configurations, B(M1)/B(E2), band termination.

doi: 10.1103/PhysRevC.57.2170
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1998DO09      Phys.Rev. C57, 2912 (1998)

J.Doring, G.D.Johns, M.A.Riley, S.L.Tabor, Y.Sun, J.A.Sheikh

Band Structures and Alignment Properties in 74Se

NUCLEAR REACTIONS 65Cu(12C, 2np), E=50 MeV; measured Eγ, Iγ, γγ-coin, DCO. 74Se deduced high-spin levels, J, π, band structure, configurations. TRS, projected shell-model calculations.

doi: 10.1103/PhysRevC.57.2912
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1998HA27      Phys.Rev. C57, 2944 (1998)

D.J.Hartley, M.A.Riley, D.E.Archer, T.B.Brown, J.Doring, R.A.Kaye, F.G.Kondev, T.Petters, J.Pfohl, R.K.Sheline, S.L.Tabor, J.Simpson

Rotational Structures in 155Eu and 157Tb

NUCLEAR REACTIONS 154Sm(7Li, 4n), E=35 MeV; 150Nd(11B, 4n), E=55 MeV; measured Eγ, Iγ, γγ-coin, DCO. 155Eu, 157Tb deduced high-spin levels, J, π, band structure, identical bands, B(M1)/B(E2), B(E1)/B(E2). Cranked shell-model analysis.

doi: 10.1103/PhysRevC.57.2944
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1998HA37      Phys.Rev. C58, 1321 (1998)

D.J.Hartley, T.B.Brown, F.G.Kondev, R.W.Laird, J.Pfohl, A.M.Richmond, M.A.Riley, J.Doring, J.Simpson

Observation of Three-Quasiparticle Structures in the N = 88 Nucleus 153Tb

NUCLEAR REACTIONS 139La(18O, 4n), E=100 MeV; measured Eγ, Iγ, γγ-coin. 153Tb deduced high-spin levels, J, π, configurations, B(M1)/B(E2) ratios.

doi: 10.1103/PhysRevC.58.1321
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1998HA54      Phys.Rev. C58, 2720 (1998)

D.J.Hartley, T.B.Brown, F.G.Kondev, J.Pfohl, M.A.Riley, S.M.Fischer, R.V.F.Janssens, D.T.Nisius, P.Fallon, W.C.Ma, J.Simpson

High-Spin Structures in 155Tb and Signature Splitting Systematics of the πh11/2 Bands in Odd A ≈ 160 Nuclei

NUCLEAR REACTIONS 152Sm(7Li, 4n), E=45 MeV; 124Sn(36S, 4np), E=165 MeV; measured Eγ, Iγ, γγ-coin. 155Tb deduced high-spin levels, J, π, configurations, signature splitting features, B(M1)/B(E2). Signature splitting of other odd-A, mass ≈ 160 nuclei discussed. Gammasphere array.

doi: 10.1103/PhysRevC.58.2720
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1998KO34      Eur.Phys.J. A 2, 249 (1998)

F.G.Kondev, M.A.Riley, T.B.Brown, R.M.Clark, M.Devlin, P.Fallon, D.J.Hartley, I.M.Hibbert, D.T.Joss, D.R.LaFosse, R.W.Laird, F.Lerma, M.Lively, P.J.Nolan, N.J.O'Brien, E.S.Paul, J.Pfohl, D.G.Sarantites, R.K.Sheline, S.L.Shepherd, J.Simpson, R.Wadsworth

Quadrupole Moment Measurement of the Highly Deformed πg9/2 ηh11/2 Band in 130Pr

NUCLEAR REACTIONS 105Pd(35Cl, 2n2α), (35Cl, n2α), E=173 MeV; measured Eγ, Iγ, γγ-, (charged-particle)γ-coin. 130,131Pr deduced high-spin levels, rotational bands T1/2, quadrupole moments, configurations. Fractional Doppler shift technique.

doi: 10.1007/s100500050116
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1998KO49      Phys.Lett. 437B, 35 (1998)

F.G.Kondev, M.A.Riley, R.V.F.Janssens, J.Simpson, A.V.Afanasjev, I.Ragnarsson, I.Ahmad, D.J.Blumenthal, T.B.Brown, M.P.Carpenter, P.Fallon, S.M.Fischer, G.Hackman, D.J.Hartley, C.A.Kalfas, T.L.Khoo, T.Lauritsen, W.C.Ma, D.Nisius, J.F.Sharpey-Schafer, P.G.Varmette

Spin ∼ 60 (h-bar) in 156Dy: Competition between collective and terminating structures at very high-spin

NUCLEAR REACTIONS 124Sn(36S, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. 156Dy deduced high-spin levels, J, π, B(E2), configurations, band termination. Cranked Nilsson-Strutinsky calculations.

doi: 10.1016/S0370-2693(98)00938-1
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1998OB02      Phys.Rev. C58, 3212 (1998)

N.J.O'Brien, R.Wadsworth, D.E.Archer, P.Fallon, I.M.Hibbert, D.T.Joss, D.R.LaFosse, P.J.Nolan, E.S.Paul, J.Pfohl, M.A.Riley, D.G.Sarantites, R.Wyss

Highly Deformed Structures in 135, 136Sm

NUCLEAR REACTIONS 105Pd(35Cl, 3np), (35Cl, 4np), E=180 MeV; measured Eγ, Iγ, (charged particle)γ-, γγ-coin. 135,136Sm deduced high-spin levels, J, π, highly-deformed rotational bands. Cranked shell model calculations. Gammaspere, Microball.

doi: 10.1103/PhysRevC.58.3212
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1998SI03      Eur.Phys.J. A 1, 267 (1998)

J.Simpson, M.A.Riley, R.W.Laird, D.J.Hartley, F.G.Kondev, J.Sweeney, A.N.Wilson, S.J.Gale, M.A.Bentley, A.M.Bruce, R.Chapman, R.M.Clark, D.M.Cullen, P.Fallon, P.D.Forsyth, S.J.Freeman, P.M.Jones, J.C.Lisle, A.O.Macchiavelli, J.F.Sharpey-Schafer, A.G.Smith, J.F.Smith, D.M.Thompson

High-K Quasiparticle Structures in 159Er and 160Er

NUCLEAR REACTIONS 116Cd(48Ca, 4n), (48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 159,160Er deduced high-spin levels, J, π, band structure, configurations, B(M1)/B(E2) ratios. Cranked shell model.

doi: 10.1007/s100500050061
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1997BR17      Phys.Rev. C56, R1210 (1997)

T.B.Brown, J.Pfohl, M.A.Riley, D.J.Hartley, D.G.Sarantites, M.Devlin, D.R.LaFosse, F.Lerma, D.E.Archer, R.M.Clark, P.Fallon, I.M.Hibbert, D.T.Joss, P.J.Nolan, N.J.O'Brien, E.S.Paul, R.K.Sheline, J.Simpson, R.Wadsworth, Y.Sun

πg9/2 Structures in Odd-Odd 130Pr and Alignment Processes in Superdeformed Praseodymium Nuclei

NUCLEAR REACTIONS 105Pd(35Cl, xnypzα), E=180 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin; deduced neutron intruder orbital related feature in mass=135 superdeformed region. 130Pr deduced high-spin levels, J, π, configuration related features. Projected shell model calculations, other data input.

doi: 10.1103/PhysRevC.56.R1210
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1997GA26      Phys.Rev. C56, 2869 (1997)

G.Garcia Bermudez, J.Doring, G.D.Johns, R.A.Kaye, M.A.Riley, S.L.Tabor, C.J.Gross, M.J.Brinkman, H.Q.Jin

Collective Structure in 70As

NUCLEAR REACTIONS 58Ni(16O, n3p), E=70 MeV; measured Eγ, Iγ, γγ-coin. 70As deduced high-spin levels T1/2, B(E2), deformation. Total Routhian Surface calculation.

doi: 10.1103/PhysRevC.56.2869
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1997HA05      Phys.Rev. C55, R985 (1997)

D.J.Hartley, J.Pfohl, M.A.Riley, D.G.Sarantites, M.Devlin, D.R.LaFosse, D.E.Archer, T.B.Brown, R.M.Clark, P.Fallon, I.M.Hibbert, D.T.Joss, P.J.Nolan, N.O'Brien, E.S.Paul, R.K.Sheline, J.Simpson, R.Wadsworth

Proton Orbital Effects in the Second Minimum of Doubly Odd 132Pr

NUCLEAR REACTIONS 105Pd(35Cl, 2n2pα), E=180 MeV; measured Eγ, γγγ-coin. 132Pr deduced high-spin levels, J, π, superdeformed bands, B(λ), band structure, configuration.

doi: 10.1103/PhysRevC.55.R985
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1996BO02      Phys.Rev. C53, R9 (1996)

S.Bouneau, A.N.Wilson, F.Azaiez, J.F.Sharpey-Schafer, A.Korichi, I.Deloncle, M.G.Porquet, J.Timar, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, J.Duprat, B.J.P.Gall, F.Hannachi, M.Kaci, Y.Le Coz, A.Lopez-Martens, M.Meyer, E.S.Paul, N.Perrin, S.Pilotte, N.Redon, M.A.Riley, C.Schuck, H.Sergolle, R.Wyss

The i13/2 Proton Intruder Orbital in the Superdeformed 193Tl Nucleus: Effective magnetic moment and blocking of proton pairing

NUCLEAR REACTIONS 181Ta(18O, 6n), E=110 MeV; measured γγ-coin, Eγ, Iγ. 193Tl deduced levels, J, π, superdeformed band structure, γ-multipolarity, (g(k)-g(R))/(Q0).

doi: 10.1103/PhysRevC.53.R9
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1996BO15      Acta Phys.Pol. B27, 197 (1996)

S.Bouneau, A.N.Wilson, F.Azaiez, J.F.Sharpey-Schafer, A.Korichi, I.Deloncle, M.G.Porquet, J.Timar, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, J.Duprat, B.J.P.Gall, F.Hannachi, M.Kaci, Y.Le Coz, A.Lopez-Martens, M.Meyer, E.S.Paul, N.Perrin, S.Pilotte, N.Redon, M.A.Riley, C.Schuck, H.Sergolle, R.Wyss

Proton Excitations in the SD Nuclei of the Mass 190 Region

NUCLEAR REACTIONS 181Ta(18O, 6n), E=110 MeV; measured γγ-coin. 193Tl deduced levels, J, π, superdeformed bands, configuration, moments of inertia.


1996DO07      Phys.Lett. 381B, 40 (1996)

J.Doring, G.D.Johns, R.A.Kaye, M.A.Riley, S.L.Tabor, J.X.Saladin

First Observation of a Strongly-Coupled Band in Even-Even A ≈ 80 Nuclei: 76Kr

NUCLEAR REACTIONS 54Fe(28Si, 2pα), E=120 MeV; measured γγ-coin, DCO ratios. 76Kr deduced levels, J, π, band structure, configuration, deformation features.

doi: 10.1016/0370-2693(96)00611-9
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1996FI08      Phys.Rev. C54, R2806 (1996)

S.M.Fischer, R.V.F.Janssens, M.A.Riley, R.R.Chasman, I.Ahmad, D.J.Blumenthal, T.B.Brown, M.P.Carpenter, G.Hackman, D.J.Hartley, T.L.Khoo, T.Lauritsen, W.C.Ma, D.Nisius, J.Simpson, P.G.Varmette

Superdeformed Band in 155Dy: Where does the ' island ' of superdeformation end ( Question )

NUCLEAR REACTIONS 124Sn(36S, 5n), E=175 MeV; measured Eγ, (γγγ)-coin, Iγ, DSA. 155Dy deduced superdeformed band, dynamic moment of inertia, quadrupole moment, configuration, deformation from T1/2 analysis.

doi: 10.1103/PhysRevC.54.R2806
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