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NSR database version of May 22, 2024.

Search: Author = S.D.Langdown

Found 17 matches.

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2007JO14      Phys.Rev. C 76, 054317 (2007); Erratum Phys.Rev. C 76, 069905 (2007)

G.A.Jones, P.H.Regan, Zs.Podolyak, N.Yoshinaga, K.Higashiyama, G.de Angelis, Y.H.Zhang, A.Gadea, C.A.Ur, M.Axiotis, D.Bazzacco, D.Bucurescu, E.Farnea, W.Gelletly, M.Ionescu-Bujor, A.Iordachescu, Th.Kroll, S.D.Langdown, S.Lenzi, S.Lunardi, N.Marginean, T.Martinez, N.H.Medina, R.Menegazzo, D.R.Napoli, B.Quintana, B.Rubio, C.Rusu, R.Schwenger, D.Tonev, J.J.Valiente Doban, W.von Oertzen

Yrast studies of 80, 82Se using deep-inelastic reactions

NUCLEAR REACTIONS 192Os(82Se, X), E=460 MeV; measured Eγ, Iγ, γγ-coin. 80,82Se; deduced levels, J, π, configurations.

doi: 10.1103/PhysRevC.76.054317
Citations: PlumX Metrics

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2006WH02      Phys.Rev. C 74, 027303 (2006)

C.Wheldon, J.J.Valiente-Dobon, P.H.Regan, C.J.Pearson, C.Y.Wu, J.F.Smith, A.O.Macchiavelli, D.Cline, R.S.Chakrawarthy, R.Chapman, M.Cromaz, P.Fallon, S.J.Freeman, W.Gelletly, A.Gorgen, A.B.Hayes, H.Hua, S.D.Langdown, I.Y.Lee, X.Liang, Zs.Podolyak, G.Sletten, R.Teng, D.Ward, D.D.Warner, A.D.Yamamoto

Observation of an isomeric state in 197Au

NUCLEAR REACTIONS 198Pt(136Xe, X)195Au/197Au, E=850 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 197Au deduced levels, J, π, configurations, high-spin isomer T1/2. 195Au deduced transition. Gammasphere, Chico arrays.

doi: 10.1103/PhysRevC.74.027303
Citations: PlumX Metrics

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2005BU08      Phys.Rev. C 71, 034315 (2005)

D.Bucurescu, Zs.Podolyak, C.Rusu, G.de Angelis, Y.H.Zhang, G.Cata-Danil, I.Cata-Danil, M.Ivascu, N.Marginean, R.Marginean, L.C.Mihailescu, G.A.Suliman, P.H.Regan, W.Gelletly, S.D.Langdown, J.J.Valiente-Dobon, D.Bazzacco, S.Lunardi, C.A.Ur, M.Axiotis, A.Gadea, E.Farnea, M.Ionescu-Bujor, A.Iordachescu, Th.Kroll, T.Martinez, P.G.Bizzeti, R.Broda, N.H.Medina, B.Quintana, B.Rubio

High-spin states in the nuclei 91Y and 95Nb

NUCLEAR REACTIONS 82Se(12C, 2np), E=38 MeV; 82Se(16O, 2np), E=48 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 12C, 16O(82Se, X)91Y/95Nb, E=470 MeV; measured Eγ, Iγ, γγ-coin. 91Y, 95Nb deduced high-spin levels, J, π, configurations. GASP array, comparison with shell model predictions, level systematics in neighboring isotones discussed.

doi: 10.1103/PhysRevC.71.034315
Citations: PlumX Metrics

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2005JO11      Acta Phys.Pol. B36, 1323 (2005)

G.A.Jones, Zs.Podolyak, N.Schunck, P.M.Walker, G.De Angelis, Y.H.Zhang, M.Axiotis, D.Bazzacco, P.G.Bizzeti, F.Brandolini, R.Broda, D.Bucurescu, E.Farnea, W.Gelletly, A.Gadea, M.Ionescu-Bujor, A.Iordachescu, Th.Kroll, S.D.Langdown, S.Lunardi, N.Marginean, T.Martinez, N.H.Medina, B.Quintana, P.H.Regan, B.Rubio, C.A.Ur, J.J.Valiente-Dobon, S.J.Williams

Oblate collectivity in the yrast structure of 194Pt

NUCLEAR REACTIONS 192Os(82Se, X)194Pt, E=460 MeV; measured Eγ, Iγ, γγ-coin. 194Pt deduced levels, J, π, configurations, B(E2). GASP array.

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2005JO19      J.Phys.(London) G31, S1891 (2005)

G.A.Jones, Zs.Podolyak, P.M.Walker, P.H.Regan, G.de Angelis, M.Axiotis, D.Bazzacco, P.G.Bizzeti, F.Brandolini, R.Broda, D.Bucurescu, E.Farnea, W.Gelletly, A.Gadea, M.Ionescu-Bujor, A.Iordachescu, Th.Kroll, S.D.Langdown, S.Lunardi, N.Marginean, T.Martinez, N.H.Medina, B.Quintana, B.Rubio, C.A.Ur, J.J.Valiente-Dobon, S.J.Williams, Y.H.Zhang

Population of yrast states in 191Os using deep-inelastic reactions

NUCLEAR REACTIONS 192Os(82Se, X)191Os, E=460 MeV; measured Eγ, Iγ, γγ-coin. 191Os deduced levels, J, π, branching ratios, configurations, isomeric state features. GASP array.

doi: 10.1088/0954-3899/31/10/095
Citations: PlumX Metrics


2005RE11      Acta Phys.Pol. B36, 1313 (2005)

P.H.Regan, C.Wheldon, A.D.Yamamoto, J.J.Valiente-Dobon, D.Cline, C.Y.Wu, A.O.Macchiavelli, F.R.Xu, J.F.Smith, K.Andgren, R.S.Chakrawarthy, M.Cromaz, P.Fallon, S.J.Freeman, A.Gorgen, A.Hayes, H.Hua, S.D.Langdown, I-Y.Lee, C.J.Pearson, Zs.Podolyak, R.Teng

Vibrational and rotational sequences in 101Mo and 103, 4Ru studied via multinucleon transfer reactions

NUCLEAR REACTIONS 100Mo(136Xe, X)101Mo/103Ru/104Ru, E=700 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 101Mo, 103,104Ru deduced high-spin levels, J, π, configurations. Gammasphere, Chico arrays.


2005RE23      J.Phys.(London) G31, S1605 (2005)

J.J.Ressler, C.W.Beausang, R.F.Casten, N.V.Zamfir, H.Ai, H.Amro, M.Babilon, R.B.Cakirli, J.A.Caggiano, G.Gurdal, A.Heinz, R.O.Hughes, S.D.Langdown, E.A.McCutchan, D.A.Meyer, C.Plettner, J.Qian, P.H.Regan, M.J.S.Sciacchitano, N.J.Thomas, E.Williams, A.Yamamoto

Isomers and seniority in the trans-Pb nuclei

NUCLEAR REACTIONS 182,184W(30Si, 4n), E=148 MeV; measured delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 208,210Ra deduced levels, J, π, isomers T1/2, B(E2). Mass separator.

doi: 10.1088/0954-3899/31/10/041
Citations: PlumX Metrics


2004MC01      Phys.Rev. C 69, 024308 (2004)

E.A.McCutchan, N.V.Zamfir, M.A.Caprio, R.F.Casten, H.Amro, C.W.Beausang, D.S.Brenner, A.A.Hecht, C.Hutter, S.D.Langdown, D.A.Meyer, P.H.Regan, J.J.Ressler, A.D.Yamamoto

Low spin states in 162Yb and the X(5) critical point symmetry

RADIOACTIVITY 162Lu(β+), (EC) [from 147Sm(19F, 4n)]; measured Eγ, Iγ, γγ-coin. 162Yb deduced levels, J, π, symmetry features.

doi: 10.1103/PhysRevC.69.024308
Citations: PlumX Metrics

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2004PO06      Int.J.Mod.Phys. E13, 123 (2004)

Zs.Podolyak, S.Mohammadi, G.De Angelis, Y.H.Zhang, M.Axiotis, D.Bazzacco, P.F.Bizzeti, F.Brandolini, R.Broda, D.Bucurescu, E.Farnea, W.Gelletly, A.Gadea, M.Ionescu-Bujor, A.Iordachescu, Th.Kroll, S.D.Langdown, S.Lunardi, N.Marginean, T.Martinez, N.H.Medina, B.Quintana, P.H.Regan, B.Rubio, C.A.Ur, J.J.Valiente-Dobon, P.M.Walker

Structure of neutron-rich nuclei from deep-inelastic reactions

NUCLEAR REACTIONS 192Os(82Se, X), E=460 MeV; measured Eγ, Iγ, γγ-coin. 72,74,76,78,80,82Ge, 188W, 184,186,188,190Os deduced levels, J, π. GASP array.

doi: 10.1142/S0218301304001837
Citations: PlumX Metrics

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2004RE03      Phys.Rev. C 69, 034317 (2004)

J.J.Ressler, R.F.Casten, N.V.Zamfir, C.W.Beausang, R.B.Cakirli, H.Ai, H.Amro, M.A.Caprio, A.A.Hecht, A.Heinz, S.D.Langdown, E.A.McCutchan, D.A.Meyer, C.Plettner, P.H.Regan, M.J.S.Sciacchitano, A.D.Yamamoto

Transition from the seniority regime to collective motion

NUCLEAR STRUCTURE 92Mo, 94Ru, 96Pd, 98Cd, 118,120,122,124,126Sn, 148Dy, 150Er, 152Yb, 154Hf, 202,204,206,208,210,212Po, 204,206,208,210,212,214Rn, 206,208,210,212,214,216Ra; analyzed B(E2); deduced signature for transition to collective motion.

doi: 10.1103/PhysRevC.69.034317
Citations: PlumX Metrics


2004RE04      Phys.Rev. C 69, 034331 (2004)

J.J.Ressler, C.W.Beausang, H.Ai, H.Amro, M.A.Caprio, R.F.Casten, A.A.Hecht, S.D.Langdown, E.A.McCutchan, D.A.Meyer, P.H.Regan, M.J.S.Sciacchitano, A.Yamamoto, N.V.Zamfir

Isomer decay tagging in the heavy nuclei: 210Ra and 209Ra

NUCLEAR REACTIONS 184W(30Si, 4n), (30Si, 5n), E=148 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 209,210Ra deduced levels, J, π, configurations, isomers T1/2. Gas-filled spectrometer, isomer decay tagging.

doi: 10.1103/PhysRevC.69.034331
Citations: PlumX Metrics

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2004RE11      Laser Phys.Lett. 1, 317 (2004)

P.H.Regan, J.J.Valiente-Dobon, C.Wheldon, C.Y.Wu, J.F.Smith, A.O.Macchiavelli, D.Cline, R.S.Chakrawarthy, R.Chapman, M.Cromaz, P.Fallon, S.J.Freeman, A.Gorgen, W.Gelletly, A.Hayes, S.D.Langdown, I.Y.Lee, X.Liang, C.J.Pearson, Zs.Podolyak, R.Teng, D.Ward, D.D.Warner, A.D.Yamamoto

Production of exotic nuclear isomers in multi-nucleon transfer reactions

NUCLEAR REACTIONS 198Pt(136Xe, X), E=850 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (particle)γ-coin following multinucleon transfer reactions. 198Pt deduced levels, J, π. 184W, 185Re, 191,192,195Os, 192,198Pt, 193Au deduced transitions, high-spin isomeric states T1/2. 136Ba, 133,134,136Xe deduced delayed transitions. Gammasphere, Chico arrays.

doi: 10.1002/lapl.200410073
Citations: PlumX Metrics

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2004VA03      Phys.Rev. C 69, 024316 (2004)

J.J.Valiente-Dobon, P.H.Regan, C.Wheldon, C.Y.Wu, N.Yoshinaga, K.Higashiyama, J.F.Smith, D.Cline, R.S.Chakrawarthy, R.Chapman, M.Cromaz, P.Fallon, S.J.Freeman, A.Gorgen, W.Gelletly, A.Hayes, H.Hua, S.D.Langdown, I.Y.Lee, X.Liang, A.O.Macchiavelli, C.J.Pearson, Zs.Podolyak, G.Sletten, R.Teng, D.Ward, D.D.Warner, A.D.Yamamoto

136Ba studied via deep-inelastic collisions: Identification of the (νh11/2)-210+ isomer

NUCLEAR REACTIONS 198Pt(136Xe, X), E=850 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (particle)γ-coin. 136Ba deduced levels, J, π, B(E2), isomer T1/2. 128,130Te, 131,133I, 132,136Xe, 138Ba, 137La, 184W, 185Re, 191,192,195Os, 192,198Pt, 193Au; deduced isomers T1/2. Gammasphere, Chico arrays.

doi: 10.1103/PhysRevC.69.024316
Citations: PlumX Metrics

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2004WH02      Eur.Phys.J. A 20, 365 (2004)

C.Wheldon, J.J.Valiente-Dobon, P.H.Regan, C.J.Pearson, C.Y.Wu, J.F.Smith, A.O.Macchiavelli, D.Cline, R.S.Chakrawarthy, R.Chapman, M.Cromaz, P.Fallon, S.J.Freeman, A.Gorgen, W.Gelletly, A.Hayes, H.Hua, S.D.Langdown, I.Y.Lee, X.Liang, Zs.Podolyak, G.Sletten, R.Teng, D.Ward, D.D.Warner, A.D.Yamamoto

Multi-quasiparticle states in 184W via multi-nucleon transfer

NUCLEAR REACTIONS 198Pt(136Xe, X)184W, E=850 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 184W deduced levels, J, π, configurations, isomer T1/2. Gammasphere, Chico arrays, comparison with model predictions.

doi: 10.1140/epja/i2003-10189-8
Citations: PlumX Metrics

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2003RE10      Phys.Rev.Lett. 90, 152502 (2003)

P.H.Regan, C.W.Beausang, N.V.Zamfir, R.F.Casten, J.-Y.Zhang, A.D.Yamamoto, M.A.Caprio, G.Gurdal, A.A.Hecht, C.Hutter, R.Krucken, S.D.Langdown, D.A.Meyer, J.J.Ressler

Signature for Vibrational to Rotational Evolution Along the Yrast Line

NUCLEAR REACTIONS 96Zr(9Be, 3n), E=44 MeV; measured Eγ, Iγ, γγ-coin. 102Ru deduced high-spin levels, J, π, evolution from vibrational to rotational structure.

NUCLEAR STRUCTURE 98,100,102,104,106,108Mo, 100,102,104,106,108,110Ru, 102,104,106,108,110,112Pd, 104,106,108,110,112,114Cd; analyzed transition energies vs spin; deduced evolution from vibrational to rotational behavior.

doi: 10.1103/PhysRevLett.90.152502
Citations: PlumX Metrics

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2003RE29      Phys.Rev. C 68, 044313 (2003)

P.H.Regan, A.D.Yamamoto, F.R.Xu, C.Y.Wu, A.O.Macchiavelli, D.Cline, J.F.Smith, S.J.Freeman, J.J.Valiente-Dobon, K.Andgren, R.S.Chakrawarthy, M.Cromaz, P.Fallon, W.Gelletly, A.Gorgen, A.Hayes, H.Hua, S.D.Langdown, I.-Y.Lee, C.J.Pearson, Zs.Podolyak, R.Teng, C.Wheldon

Binary-reaction spectroscopy of 99, 100Mo: Intruder alignment systematics in N = 57 and N = 58 isotones

NUCLEAR REACTIONS 100Mo(136Xe, X)99Mo/100Mo, E=700 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 99,100Mo deduced levels, J, configurations, rotational band features. Gammasphere, Chico arrays. Cranked mean-field, total Routhian surface calculations.

doi: 10.1103/PhysRevC.68.044313
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2002YA13      Phys.Rev. C66, 024302 (2002)

A.D.Yamamoto, P.H.Regan, C.W.Beausang, F.R.Xu, M.A.Caprio, R.F.Casten, G.Gurdal, A.A.Hecht, C.Hutter, R.Krucken, S.D.Langdown, D.Meyer, J.J.Ressler, N.V.Zamfir

High-j proton and neutron alignments in γ-soft 101Ru

NUCLEAR REACTIONS 96Zr(9Be, 4n), E ≈ 44 MeV; measured Eγ, Iγ, γγ-coin. 101Ru deduced high-spin levels, J, π, configurations. Total Routhian surface calculations, comparisons with previous results.

doi: 10.1103/PhysRevC.66.024302
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