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NSR database version of May 19, 2024.

Search: Author = N.M.Lumley

Found 15 matches.

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2016GR15      Phys.Rev. C 94, 044327 (2016)

T.Grahn, S.Stolze, D.T.Joss, R.D.Page, B.Saygi, D.O'Donnell, M.Akmali, K.Andgren, L.Bianco, D.M.Cullen, A.Dewald, P.T.Greenlees, K.Heyde, H.Iwasaki, U.Jakobsson, P.Jones, D.S.Judson, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, N.Lumley, P.J.R.Mason, O.Moller, K.Nomura, M.Nyman, A.Petts, P.Peura, N.Pietralla, Th.Pissulla, P.Rahkila, P.J.Sapple, J.Saren, C.Scholey, J.Simpson, J.Sorri, P.D.Stevenson, J.Uusitalo, H.V.Watkins, J.L.Wood

Excited states and reduced transition probabilities in 168Os

NUCLEAR REACTIONS 92Mo(78Kr, 2p), E=335, 345, 348 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin, level half-lives by recoil-distance method using a plunger device, RITU separator, GREAT spectrometer, JUROGAM array at Jyvaskyla accelerator facility. 168Os; deduced high-spin levels, J, π, bands, B(E2), B(E1), transition quadrupole and dipole moments. Comparisons with interacting boson model (IBM-2) calculations based on the SkM* energy-density functional. Systematics of ground bands, and excited positive-parity level energies up to 8+ in 168,170,172,174,176,178,180,182,184Os.

doi: 10.1103/PhysRevC.94.044327
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2013RU10      Phys.Rev. C 88, 024320 (2013)

P.Ruotsalainen, C.Scholey, R.Julin, K.Hauschild, K.Kaneko, B.S.Nara Singh, R.Wadsworth, D.G.Jenkins, T.S.Brock, P.T.Greenlees, J.Henderson, U.Jakobsson, P.Jones, S.Juutinen, S.Ketelhut, M.Leino, N.M.Lumley, P.J.R.Mason, P.Nieminen, M.Nyman, I.Paterson, P.Peura, M.G.Procter, P.Rahkila, J.Saren, J.Sorri, J.Uusitalo

Recoil-β tagging study of the N=Z nucleus 66As

NUCLEAR REACTIONS 40Ca(28Si, np), E=75, 83 MeV; measured reaction products, Eγ, Iγ, γ(θ), γγ(θ)(ADO ratios), βγ-, (recoil)βγ-, γγ-coin, isomer half-lives by γγ(t) using RITU separator, GREAT spectrometer and JUROGAM II array at Jyvaskyla facility. Recoil-beta tagging (RBT) and recoil-isomer tagging methods. 66As; deduced high-spin levels, isomers, J, π, T=1 band, T=0 states, conversion coefficients, multipolarity, configuration, B(E2), B(M1), oblate 3+ shape isomer. 64Zn, 65Ga, 66Ge; observed γ rays from low-lying states. Systematics of Coulomb energy differences (CEDs) for A=66, 70, 74, and 78 systems. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.88.024320
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2012AL26      J.Phys.:Conf.Ser. 381, 012126 (2012)

G.A.Alharshan, D.M.Cullen, M.J.Taylor, M.G.Procter, N.M.Lumley, T.Grahn, P.T.Greenless, K.Hauschild, A.Herzon, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.Lopez-Martens, P.Nieminen, J.Pantanen, P.Peura, P.Rahkila, S.Rinta-Antilla, P.Ruatsalainen, H.M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo

The isomeric structure of 132Pr

NUCLEAR REACTIONS 98Mo(40Ar, n5p), E=150, 158, 165 MeV; measured prompt Eγ, Iγ using JUROGAM II, recoil gas-filled separator, β-delayed Eγ, Iγ(θ), γγ-coin, X-rays; deduced recoil isomer-tagged γ spectra, EC coefficient, new isomer, T1/2.

doi: 10.1088/1742-6596/381/1/012126
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2012PR10      Phys.Rev. C 86, 034308 (2012)

M.G.Procter, D.M.Cullen, C.Scholey, P.Ruotsalainen, L.Angus, T.Back, B.Cederwall, A.Dewald, C.Fransen, T.Grahn, P.T.Greenlees, M.Hackstein, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, R.Liotta, N.M.Lumley, P.J.R.Mason, P.Nieminen, M.Nyman, J.Pakarinen, T.Pissulla, P.Peura, P.Rahkila, J.Revill, S.V.Rigby, W.Rother, M.Sandzelius, J.Saren, J.Sorri, M.J.Taylor, J.Uusitalo, P.Wady, C.Qi, F.R.Xu

Electromagnetic transition strengths in 52109Te

NUCLEAR REACTIONS 58Ni(54Fe, n2p), E=206 MeV; measured Eγ, Iγ, γγ-, (particle)γ-, (recoil)γ-coin, level half-lives using the recoil distance Doppler-shift method using PRE-JUROGAM II spectrometer, RITU and GREAT focal-plane spectrometer at Jyvaskyla. Recoil-decay tagging method. 109Te; deduced levels, J, π, bands, multipolarity, B(E2), B(M1). Comparison of experimental B(E2) for ground-state transitions in 108,109Te, 109I with theory. Systematics of 11/2- states in N=57-81 Te isotopes, first 2+ states in N=54-82 Te, h11/2 bands in N=57-63 Te, and ground-state bands in N=54-64 even A Te nuclei. Comparison of levels, J, π, B(E2), B(M1) values with shell model calculations.

NUCLEAR REACTIONS 58Ni(54Fe, X)105In/106Sn/108Sn/108Sb/109Sb/109Te/110Te, E=206 MeV; measured yields from ground-state transitions in (recoil)γγ-coin spectra.

doi: 10.1103/PhysRevC.86.034308
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2012TA18      Phys.Rev. C 86, 044310 (2012)

M.J.Taylor, G.A.Alharshan, D.M.Cullen, M.G.Procter, N.M.Lumley, T.Grahn, P.T.Greenlees, K.Hauschild, A.Herzan, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.Lopez-Martens, P.Nieminen, J.Partanen, P.Peura, P.Rahkila, S.Rinta-Antila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo, F.R.Xu, Z.J.Bai

Identification of isomeric states in the N=73 neutron-deficient nuclei 132Pr and 130La

NUCLEAR REACTIONS 98Mo(40Ar, 5np), (40Ar, 3npα), E=150, 158, 165 MeV; measured Eγ, Iγ, γγ-, βγ-coin, delayed and prompt γ spectra, γγ(t), isomer half-lives using Jurogam-II array, RITU separator and GREAT spectrometer at Jyvaskyla. 130La, 132Pr; deduced levels, J, π, bands, configurations. Potential-energy-surface calculations.

doi: 10.1103/PhysRevC.86.044310
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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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2011HA15      Int.J.Mod.Phys. E20, 474 (2011)

A.B.Hayes, D.Cline, C.Y.Wu, A.M.Hurst, M.P.Carpenter, J.P.Greene, R.V.F.Janssens, T.Lauritsen, D.Seweryniak, S.Zhu, S.A.Karamian, P.M.Walker, T.P.D.Swan, S.V.Rigby, D.M.Cullen, N.M.Lumley, P.Mason, J.J.Carroll, B.Detwiler, T.Harle, I.Mills, G.Trees

New structures in 178Hf and Coulomb excitation of isomers

NUCLEAR REACTIONS 208Pb(178Hf, 178Hf'), E=985 MeV; measured Eγ, Iγ, particle-γ-coin.; deduced energy levels, J, π, isomer bands, rotational sequence feeding.

doi: 10.1142/S0218301311017879
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2011PR02      Phys.Rev. C 83, 034311 (2011)

M.G.Procter, D.M.Cullen, C.Scholey, P.T.Greenlees, J.Hirvonen, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, N.M.Lumley, P.J.R.Mason, P.Nieminen, M.Nyman, P.Peura, P.Rahkila, J.-M.Regis, P.Ruotsalainen, J.Saren, Y.Shi, J.Sorri, S.Stolze, J.Uusitalo, F.R.Xu

High-K four-quasiparticle states in 138Gd

NUCLEAR REACTIONS 106Cd(36Ar, 2n2p), E=180 MeV; measured Eγ, Iγ, particle spectra, γγ-, (particle)γ-coin, (particle)γ(t), γ(θ), half-lives, using JUROGAM II array and GREAT spectrometer and recoil isomer-tagging technique. 138Gd; deduced levels, J, π, multipolarity, mixing ratios, bands, high-K isomer, alignment plots, configurations, β2, β4, potential energy surfaces, gK-gR. Comparison with high-K band structures in 132Ce, 134Nd and 136Sm. Calculated PES for high-K isomer in 138Gd.

doi: 10.1103/PhysRevC.83.034311
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2011PR12      Phys.Lett. B 704, 118 (2011)

M.G.Procter, D.M.Cullen, C.Scholey, P.Ruotsalainen, L.Angus, T.Back, B.Cederwall, A.Dewald, C.Fransen, T.Grahn, P.T.Greenlees, M.Hackstein, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, R.Liotta, N.M.Lumley, P.J.R.Mason, P.Nieminen, M.Nyman, J.Pakarinen, T.Pissulla, P.Peura, P.Rahkila, J.Revill, S.V.Rigby, W.Rother, M.Sandzelius, J.Saren, J.Sorri, M.J.Taylor, J.Uusitalo, P.Wady, C.Qi, F.R.Xu

Anomalous transition strength in the proton-unbound nucleus 10953I56

NUCLEAR REACTIONS 58Ni(54Fe, 2np)109I, E=206 MeV; measured reaction products, Eγ, Iγ; deduced σ, lifetime or T1/2 for the first excited state. Comparison with theoretical calculations, Recoil distance Doppler-shift method.

doi: 10.1016/j.physletb.2011.09.012
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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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2011WA37      Phys.Rev. C 84, 051302 (2011)

H.Watkins, D.T.Joss, T.Grahn, R.D.Page, R.J.Carroll, A.Dewald, P.T.Greenlees, M.Hackstein, R.-D.Herzberg, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, T.Kroll, R.Krucken, M.Labiche, M.Leino, N.Lumley, P.Maierbeck, M.Nyman, P.Nieminen, D.O'Donnell, J.Ollier, J.Pakarinen, P.Peura, T.Pissulla, P.Rahkila, J.P.Revill, W.Rother, P.Ruotsalainen, S.V.Rigby, J.Saren, P.J.Sapple, M.Scheck, C.Scholey, J.Simpson, J.Sorri, J.Uusitalo, M.Venhart

Lifetime measurements probing triple shape coexistence in 175Au

NUCLEAR REACTIONS 92Mo(86Sr, 2np), E=401 MeV; measured Eγ, Iγ, αγ-, (evaporation residues)αγ-coin, half-lives by recoil-distance Doppler-shift (RDDS) and differential decay curve methods using Cologne plunger device and JUROGAM array. Recoil-decay tagging method using Gamma Recoil Electron Alpha Tagging (GREAT) spectrometer. 175Au; deduced level, J, π, B(E2), B(E1), transition quadrupole moment. Systematics of transition quadrupole moments in 175Au, 178Pt, 180,182Hg, 186Pb, 187Tl. Spherical, prolate, and mixed oblate-prolate configurations.

RADIOACTIVITY 175mAu(α); measured Eα, half-life of 11/2- isomer by correlations between recoil implantations and α decays.

doi: 10.1103/PhysRevC.84.051302
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2010MA15      Phys.Lett. B 683, 17 (2010)

P.J.R.Mason, D.M.Cullen, C.Scholey, A.Dewald, O.Moller, H.Iwasaki, T.Pissulla, W.Rother, J.A.Dare, P.T.Greenlees, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, N.M.Lumley, B.Niclasen, M.Nyman, P.Peura, A.Puurunen, P.Rahkila, P.Ruotsalainen, J.Sorri, J.Saren, J.Uusitalo, F.R.Xu

Isomer-tagged differential-plunger measurements in proton-unbound 144Ho

NUCLEAR REACTIONS 92Mo(54Fe, np), E=226 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin, half-life, prompt and delayed γ rays using JUROGAM array. 144Ho; deduced energy levels, J, π, isomer, configurations. Recoil-isomer tagging method.

doi: 10.1016/j.physletb.2009.11.042
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2010PR04      Phys.Rev. C 81, 054320 (2010)

M.G.Procter, D.M.Cullen, C.Scholey, B.Niclasen, P.J.R.Mason, S.V.Rigby, J.A.Dare, A.Dewald, P.T.Greenlees, H.Iwasaki, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, N.M.Lumley, O.Moller, M.Nyman, P.Peura, T.Pissulla, A.Puurunen, P.Rahkila, W.Rother, P.Ruotsalainen, J.Saren, J.Sorri, J.Uusitalo

Lifetime measurements and shape coexistence in 144Dy

NUCLEAR REACTIONS 92Mo(54Fe, 2p)144Dy, E=226 MeV; measured Eγ, Iγ, γγ-coin, DCO, half-lives by RDDS using JUROGAM array. 144Dy; deduced levels, J, π, multipolarity, bands, B(M1), B(E2), B(M1)/B(E2), Q(t), β2, configurations, magnetic-dipole shears bands. Comparison with systematics of bands in 142Gd, 143Tb, 145,146Dy and with cranked shell-model (CSM) calculations.

doi: 10.1103/PhysRevC.81.054320
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2009OD02      Phys.Rev. C 79, 064309 (2009)

D.O'Donnell, T.Grahn, D.T.Joss, J.Simpson, C.Scholey, K.Andgren, L.Bianco, B.Cederwall, D.M.Cullen, A.Dewald, E.Ganioglu, M.B.Gomez Hornillos, P.T.Greenlees, B.Hadinia, H.Iwasaki, U.Jakobsson, J.Jolie, P.Jones, D.S.Judson, R.Julin, S.Juutinen, S.Ketelhut, M.Labiche, M.Leino, N.M.Lumley, P.J.R.Mason, O.Moller, P.Nieminen, M.Nyman, R.D.Page, J.Pakarinen, E.S.Paul, M.Petri, A.Petts, P.Peura, N.Pietralla, Th.Pissulla, P.Rahkila, P.Ruotsalainen, M.Sandzelius, P.J.Sapple, J.Saren, J.Sorri, J.Thomson, J.Uusitalo, H.V.Watkins

Spectroscopy of the neutron-deficient nucleus 167Os91

NUCLEAR REACTIONS 92Mo(78Kr, n2p), E=335, 357, 365 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), and half-lives by recoil-distance method. 167Os; deduced levels, J, π, bands, and multipolarity. 168Os; deduced levels. Recoil-decay tagging technique. A=161-173, odd-A Yb, Hf, W and Os; systematics of experimental aligned momentum as a function of rotational frequency. Z=64-78, N=91; systematics of yrast states. Comparison with cranked shell-model calculations.

RADIOACTIVITY 162,163,164W, 167,168Os, 168,169Ir, 168,169,170Pt(α); measured Eα, Iα.

doi: 10.1103/PhysRevC.79.064309
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Note: The following list of authors and aliases matches the search parameter N.M.Lumley: , N.M.LUMLEY