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NSR database version of April 25, 2024.

Search: Author = N.M.Lumley

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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 ^{168,170,172,174,176,178,180,182,184}Os.

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, T_1/2.

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, h_11/2 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, g_K-g_R. 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 T_1/2 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