NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = M.A.Riley Found 174 matches. Showing 1 to 100. [Next]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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
2000SH18 Phys.Rev. C61, 057301 (2000) 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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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