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NSR database version of March 21, 2024.

Search: Author = D.Ward

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

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

Evolution of structure and shapes in 158Er to ultrahigh spin

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

doi: 10.1103/PhysRevC.107.054305
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2021RO11      Phys.Rev. C 103, 034326 (2021)

D.G.Roux, W.C.Ma, G.B.Hagemann, D.R.Elema, P.Fallon, A.Gorgen, B.Herskind, H.Hubel, J.C.Marsh, G.Sletten, D.Ward, J.N.Wilson

High-spin states and signature inversion in odd-odd 168Lu

NUCLEAR REACTIONS 123Sb(48Ca, 3n), E=203 MeV; measured Eγ, Iγ, multi-fold γγ-coin, γγ(θ)(DCO) using Gammasphere array at LBNL. 168Lu; deduced high-spin levels, J, p, multipolarities, B(M1)/B(E2), rotational bands, alignments, band crossing frequencies, band configurations, signature splittings and inversions; calculated quasiparticle Routhians. Comparison with cranked shell model calculations using ULTIMATE CRANKER code.

doi: 10.1103/PhysRevC.103.034326
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2019KH04      Phys.Rev. C 99, 054306 (2019)

J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

Fusion reaction 48Ca + 249Bk leading to formation of the element Ts (Z=117)

NUCLEAR REACTIONS 249Bk(48Ca, 3n), (48Ca, 4n)293Ts/294Ts, E=252.1, 254.0, 258.0 MeV; measured reaction products, evaporation residues (ER), Eα, Iα, (ER)α-correlated decay chains, and σ using double-sided silicon strip detectors for α detection, TASCA separator for evaporation residue, and multiwire proportional counter for detection of residues at UNILAC accelerator facility of GSI. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility.

RADIOACTIVITY 294Ts, 290Mc, 286Nh, 282Rg, 278Mt, 274Bh, 270Db(α); 293Ts, 289Mc, 285Nh, 281Rg(α); 266Lr, 270Db, 277Mt, 277Hs(SF); measured Eα, Iα, SF events, half-lives. 266Lr, 270Db(α), (SF); measured half-lives and α/SF branching ratios. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility. A=200-240; A=240-260; systematics of α-decay half-lives of isotopes produced in 48Ca+249Bk and 48Ca+249Cf reactions.

doi: 10.1103/PhysRevC.99.054306
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2019WA27      Phys.Rev. C 100, 034301 (2019)

D.E.Ward, B.G.Carlsson, P.Moller, S.AAberg

Global microscopic calculations of odd-odd nuclei

NUCLEAR STRUCTURE Z=8-100, N=8-156; calculated ground-state Jπ for odd-A nuclei from the lowest-energy proton or neutron quasiparticle. 158,160Tb, 164,166Ho, 168,170Tm, 174,176Lu, 182Ta, 186,188Re, 234,236Pa, 238Np, 240,242,244Cm, 250Bk; calculated excitation energies of the 2-qp bandheads, bandhead splittings in rare-earth nuclei and actinides using Folded-Yukawa quasiparticles-plus-rotor model with three different residual interactions. 50Sc, 90Y, 208,210Bi; calculated low-lying multiplets in the spherical nuclei. 174,176Lu, 180,182Ta; calculated low-lying rotational bands and K=0 bands. 248,250,252,254,256Es, 256Md; predicted ground-state spins of superheavy nuclei. Z=101-119, N=138-182; calculated Q(α) values for odd-odd superheavy nuclei. Macroscopic-microscopic finite-range droplet model combined with particle-rotor coupling model order to describe low-energy spectra of odd-odd nuclei, using different interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.034301
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2018DI11      Phys.Lett. B 784, 199 (2018)

A.Di Nitto, J.Khuyagbaatar, D.Ackermann, L.-L.Andersson, E.Badura, M.Block, H.Brand, I.Conrad, D.M.Cox, Ch.E.Dullmann, J.Dvorak, K.Eberhardt, P.A.Ellison, N.E.Esker, J.Even, C.Fahlander, U.Forsberg, J.M.Gates, P.Golubev, O.Gothe, K.E.Gregorich, W.Hartmann, R.D.Herzberg, F.P.Hessberger, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, S.Klein, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, S.Lahiri, B.Lommel, M.Maiti, R.Mandl, E.Merchan, S.Minami, A.K.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, D.Renisch, D.Rudolph, J.Runke, L.G.Sarmiento, M.Schadel, H.Schaffner, B.Schausten, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, N.Trautmann, A.Turler, J.Uusitalo, D.Ward, M.Wegrzecki, P.Wieczorek, N.Wiehl, A.Yakushev, V.Yakusheva

Study of non-fusion products in the 50Ti + 249Cf reaction

NUCLEAR REACTIONS 249Cf(50Ti, X)211Po/212At/213Rn/214Fr/215Ra/222Ra/221Ra/223Ac/218Rn/224Th/219Fr/223Th/218Rn/219Fr/220Ra/214Po/219Ra/217Rn/215At, E=306 MeV; measured reaction products, Eα, Iα; deduced σ.

doi: 10.1016/j.physletb.2018.07.058
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2018SI03      Phys.Rev. C 97, 024323 (2018)

A.K.Singh, A.Basu, S.Nag, H.Hubel, J.Domscheit, I.Ragnarsson, A.Al-Khatib, G.B.Hagemann, B.Herskind, D.R.Elema, J.N.Wilson, R.M.Clark, M.Cromaz, P.Fallon, A.Gorgen, I.-Y.Lee, D.Ward, W.C.Ma

Absence of paired crossing in the positive parity bands of 124Cs

NUCLEAR REACTIONS 64Ni(64Ni, 3np), E=265 MeV from the 88-inch cyclotron at Lawrence Berkeley National Laboratory; measured Eγ, Iγ, γγ-coin, γγ(θ) angular distribution ratios using Gammasphere array of 100 Compton-suppressed Ge detectors, enriched target. 124Cs; deduced high-spin levels, J, π, multipolarities, rotational bands, chiral partner bands, configurations, alignments, band crossings; calculated potential-energy surfaces, single-neutron routhians. Comparison with configuration-dependent cranked Nilsson-Strutinsky model calculations.

doi: 10.1103/PhysRevC.97.024323
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2017LO13      Phys.Rev. C 96, 034315 (2017)

Ch.Lorenz, L.G.Sarmiento, D.Rudolph, D.E.Ward, M.Block, F.P.Hessberger, D.Ackermann, L.-L.Andersson, M.L.Cortes, C.Droese, M.Dworschak, M.Eibach, U.Forsberg, P.Golubev, R.Hoischen, I.Kojouharov, J.Khuyagbaatar, D.Nesterenko, I.Ragnarsson, H.Schaffner, L.Schweikhard, S.Stolze, J.Wenzl

Quantum-state-selective decay spectroscopy of 213Ra

RADIOACTIVITY 213Ra(α), (EC), (β+)[from 170Er(48Ca, 5n), E=4.30 MeV/nucleon using velocity filter SHIP and SHIPTRAP Penning trap at GSI UNILAC facility]; 209Rn(α), (EC), (β+)[from 213Ra α decay]; 213Fr(α), (EC), (β+)[from 213Ra EC decay]; 209At(α), (EC), (β+)[from 209Rn EC decay]; measured Eα, Iα, Eγ, Iγ, αγ-coin, (x ray)α-coin, α and EC+β+ branching ratios using TASISpec setup at GSI. GEANT4 simulations. 209Rn; deduced levels, α feedings, γ-ray branching ratios, multipolarity. Comparison with evaluated data, and Nilsson-Strutinsky and shell-model calculations. 209Rn; calculated levels, J, π using shell model with pbpop interaction, total energy surface in (ϵ2, ϵ4) plane, and compared with experimental data, and other theoretical calculations.

doi: 10.1103/PhysRevC.96.034315
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2017WA08      Phys.Rev. C 95, 024618 (2017)

D.E.Ward, B.G.Carlsson, T.Dossing, P.Moller, J.Randrup, S.AAberg

Nuclear shape evolution based on microscopic level densities

NUCLEAR REACTIONS 226Th, 234,236U, 240Pu(γ, F), (n, F), E(n)=thermal; calculated yield of fragments as function of proton number and angular momentum and excitation energy using parameter-free microscopic level densities obtained with the Metropolis-walk method. Comparison with experimental data.

NUCLEAR STRUCTURE 236U; calculated microscopic level density as a function of angular momentum and excitation energy, potential-energy curves and mass asymmetry versus elongation using Metropolis walk, combinatorial method.

doi: 10.1103/PhysRevC.95.024618
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2016FO10      Nucl.Phys. A953, 117 (2016)

U.Forsberg, D.Rudolph, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, C.Fahlander, J.M.Gates, P.Golubev, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, L.G.Sarmiento, M.Schadel, A.Yakushev, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, J.Dobaczewski, K.Eberhardt, J.Even, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, W.Nazarewicz, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, Y.Shi, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Recoil-α-fission and recoil-α-α- fission events observed in the reaction 48Ca + 243Am

NUCLEAR REACTIONS 243Am(48Ca, x), E=242.1, 245.0 MeV; measured reaction products, fission products, Eα, Iα(t), αα-coin, (recoil)α-coin, En, In using He-gas filled TASCA, TASISpec based on DSSSDs, other DSSSDs; deduced correlation times, α energy spectra, 23 α-decay chains of five α's and α+3n, fragments T1/2. Discussed existence of long decay chains; compared with published results.

RADIOACTIVITY 289,288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2016.04.025
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2016VO04      Phys.Rev. C 93, 054325 (2016)

A.Vogt, B.Birkenbach, P.Reiter, A.Blazhev, M.Siciliano, J.J.Valiente-Dobon, C.Wheldon, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, S.J.Freeman, A.Gadea, K.Geibel, W.Gelletly, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, H.Hua, P.R.John, J.Jolie, A.Jungclaus, W.Korten, I.Y.Lee, S.Leoni, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, D.Napoli, C.J.Pearson, L.Pellegri, Zs.Podolyak, G.Pollarolo, A.Pullia, F.Radeck, F.Recchia, P.H.Regan, E.Sahin, F.Scarlassara, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, V.Vandone, D.Ward, D.D.Warner, A.Wiens, C.Y.Wu

High-spin structure of 134Xe

NUCLEAR REACTIONS 198Pt(136Xe, 134Xe), E=850 MeV; 208Pb(136Xe, 134Xe), E=930 MeV; 238U(136Xe, 134Xe), E=1 GeV; measured Eγ, Iγ, γγ-coin, γ(θ), time-of-flight total kinetic energy loss (TKEL) using Gammasphere and Chico arrays at LBNL cyclotron facility for the 198Pt+136Xe reaction, and PRISMA spectrometer, Dante and AGATA arrays at PIAVE+ALPI accelerator complex for the 208Pb+136Xe and 238U+136Xe reactions. 134Xe; deduced high-spin levels, J, π, multipolarity, configurations. Comparison with shell-model calculations using the jj55 effective interaction.

doi: 10.1103/PhysRevC.93.054325
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2015RO27      Phys.Rev. C 92, 064313 (2015)

D.G.Roux, W.C.Ma, G.B.Hagemann, H.Amro, D.R.Elema, P.Fallon, A.Gorgen, B.Herskind, H.Hubel, Y.Li, A.O.Macchiavelli, J.C.Marsh, G.Sletten, D.Ward, J.N.Wilson

Toward complete spectroscopy of 167Lu

NUCLEAR REACTIONS 123Sb(48Ca, 4n), E=203 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using Gammasphere array at LBNL cyclotron facility. 167Lu; deduced high-spin levels, J, π, multipolarity, rotational bands, triaxial strongly-deformed (TSD) bands, alignments, dynamic moments of inertia, band crossings, zero- and one-phonon wobbling, and multiquasiparticle excitations, quasiparticle and Nilsson configurations. Comparison with cranked shell model calculations, and with previous experimental results. Calculated quasiparticle Routhians as function of rotational frequency.

doi: 10.1103/PhysRevC.92.064313
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2015RU11      J.Radioanal.Nucl.Chem. 303, 1185 (2015)

D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Selected spectroscopic results on element 115 decay chains

RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced Q-values, level energies, branching ratios. Comparison with GEANT4 Monte-Carlo simulations.

doi: 10.1007/s10967-014-3445-y
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2015WA20      Phys.Rev. C 92, 014314 (2015)

D.E.Ward, B.G.Carlsson, S.AAberg

α-decay spectra of odd nuclei using the effective Skyrme interaction

RADIOACTIVITY 145Pm, 147Sm, 147Eu, 149,149mTb, 187,189,191,193,195,197,199,201,201m,203,205,207,209,211,213,215,217Po, 203,205,207,209,211,213At, 207,209,211Rn, 207,209,211,213Fr, 213Ra(α); analyzed experimental data for partial half-lives and reduced widths, compared with calculated microscopic reduced widths using SLy4 and surface pairing. 279,281,283,285,287,289,291,293Bh, 281,283,285,287,289,291,293Hs, 281,283,285,287,289,291,293,295Mt, 283,285,287,289,291,293,295Ds, 283,285,287,289,291,293,295,297Rg, 285,287,289,291,293,295,297,299Cn, 285,287,289,291,293,295,297,299Nh, 287,289,291,293,295,297,299,301Fl, 287,289,291,293,295,297,299,301Mc, 289,291,293,295,297,299,301,303Lv, 289,291,293,295,297,299,301,303Ts, 291,293,295,297,299,301,303,305Og, 291,293,295,297,299,301,303,305119, 293,295,297,299,301,303,305,307120, 280,282,284,286,288,290,292,294Hs, 282,284,286,288,290,292,294,296Ds, 284,286,288,290,292,294,296,298Cn, 286,288,290,292,294,296,298,300Fl, 288,290,292,294,296,298,300,302Lv, 290,292,294,296,298,300,302,304Og, 292,294,296,298,300,302,304,306120(α); calculated Q(α) values, half-lives and reduced widths for superheavy odd-A and even-even nuclei using axially deformed Skyrme-HFB. R-matrix-type microscopic formalism for the calculation of the decay rate, using HFB wave functions obtained with SLy4 Skyrme effective interaction.

NUCLEAR STRUCTURE 208Pb, 298Fl; calculated HF single-particle energies for 208Pb and Nilsson diagrams for neutron and proton levels using SLy4.

doi: 10.1103/PhysRevC.92.014314
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2014KH04      Phys.Rev.Lett. 112, 172501 (2014)

J.Khuyagbaatar, A.Yakushev, C.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

48Ca + 249Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying 270Db and Discovery of 266Lr

NUCLEAR REACTIONS 249Bk(48Ca, X)294Ts, E=268.3, 270.2, 274.1 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with experimental data.

RADIOACTIVITY 294Ts, 290Mc, 286Nh, 282Rg, 278Mt, 274Bh, 270Db, 266Lr(α); measured decay products, Eα, Iα; deduced T1/2. Comparison with experimental data.

doi: 10.1103/PhysRevLett.112.172501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0731. Data from this article have been entered in the XUNDL database. For more information, click here.


2014RU04      Acta Phys.Pol. B45, 263 (2014)

D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Alpha-Photon Coincidence Spectroscopy Along Element 115 Decay Chains

RADIOACTIVITY 287,288Mc, 283,284Nh, 279,280Rg, 275,276Mt, 271,272Bh(α), 267,268Db(SF) [from 243Am(48Ca, X), E not given]; measured decay products, Eα, Iα, Eγ, Iγ, X-rays; deduced T1/2, correlated α-decay chains. Comparison with available data.

doi: 10.5506/APhysPolB.45.263
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2014SH15      Phys.Rev. C 90, 014308 (2014)

Y.Shi, D.E.Ward, B.G.Carlsson, J.Dobaczewski, W.Nazarewicz, I.Ragnarsson, D.Rudolph

Structure of superheavy nuclei along decay chains of element 115

NUCLEAR STRUCTURE 264Rf, 268Sg, 272Hs, 276Ds, 280Cn, 284Fl, 288Lv, 292Og, 296120; calculated quadrupole moments. 293Ts, 287,289Mc, 283,285Nh, 279,281Rg, 287,289Lv, 283,285Fl, 279,281Cn, 275,277Ds, 275,277Mt, 273,275Hs, 271,272,273Bh, 271Sg; calculated level energies for various Nilsson configurations, total quadrupole moments, quadrupole mass deformations β2 for one-quasiparticle excitations in nuclei associated with α-decay chains of 287,289Lv, 287Mc, 293Ts and some neighboring nuclei. Self-consistent Skyrme Hartree-Fock-Bogolyubov (SHFB), energy density functional approach (using UNEDF1 and UNEDF1SO) and macroscopic-microscopic Nilsson model for superheavy nuclei. Discussed E1 transitions.

doi: 10.1103/PhysRevC.90.014308
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2014WA55      Phys.Scr. 89, 054027 (2014)

D.E.Ward, B.G.Carlsson, S.Aberg

Alpha-particle formation and decay rates from Skyrme-HFB wave functions

RADIOACTIVITY 212Po(α); calculated α-particle formation amplitude, α-decay width using R-matrix with HFB wavefunctions with Skyrme interactions. Decay width compared to data.

doi: 10.1088/0031-8949/89/5/054027
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2013RU11      Phys.Rev.Lett. 111, 112502 (2013)

D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, F.P.Hessberger, R.-D.Herzberg, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Spectroscopy of Element 115 Decay Chains

RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α) [from 243Am(48Ca, X), E=5.4 MeV/nucleon]; measured decay products, Eα, Iα, Eγ, Iγ, X-rays. 280Rg, 276Mt; deduced T1/2, Q-value, α-decay scheme. Comparison with Monte Carlo calculations.

doi: 10.1103/PhysRevLett.111.112502
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2013WA30      Phys.Rev. C 88, 064316 (2013)

D.E.Ward, B.G.Carlsson, S.AAberg

α-decay calculations of heavy nuclei using an effective Skyrme interaction

NUCLEAR STRUCTURE 208Pb; calculated neutron and proton densities by solving the HFB equations using a spherical oscillator basis.

RADIOACTIVITY 210Pb, 210,212Po(α); calculated decay widths for different sizes of the oscillator basis, and three different Skyrme forces, effect on decay rate with the Lipkin-Nogami (LN) procedure, HFB+LN and HFB approaches density dependence of pairing forces. 194,196,198,200,202,204,206,208,210,212,214,216,218Po, 202,204,206,208,210,212,214,216,218Rn, 206,208,210,212,214,216,218Ra, 144Nd, 146Sm, 148Gd, 150Dy, 152,154Er, 154,156Yb, 156,158Hf, 158,160W, 162Os, 294,296,298,300Fl, 294,296,298,300Fl, 306,308,310,312126(α); calculated α decay widths, half-lives of Fl and Z=126 isotopes. Nuclear ground states calculated with the Hartree-Fock-Bogoliubov (HFB) method with Skyrme interaction. Microscopic α-decay formation amplitudes calculated from HFB wave functions, and α widths with R-matrix formalism. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.064316
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2012WA35      Phys.Rev. C 86, 064319 (2012)

D.Ward, A.O.Macchiavelli, R.M.Clark, D.Cline, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, A.Gorgen, A.B.Hayes, G.J.Lane, I.-Y.Lee, T.Nakatsukasa, G.Schmidt, F.S.Stephens, C.E.Svensson, R.Teng, K.Vetter, C.Y.Wu

Band structure of 235U

NUCLEAR REACTIONS 235U(136Xe, 136Xe'), E=720 MeV; 235U(40Ca, 40Ca'), E=184 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, Coulomb excitation yields, γ branching ratios using Gammasphere, 8π and CHICO arrays. 235U; deduced high-spin levels, J, π, B(M1), B(E2), B(E3) from Winther-deBoer analysis, gK, magnetic decoupling parameter, rotational bands, configurations. Analyzed coriolis interaction in j15/2 orbital. Comparison with quasiparticle random phase approximation (QRPA) calculations for B(E3). Discussed E3 correlations and Coriolis effects.

doi: 10.1103/PhysRevC.86.064319
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2010DA19      Phys.Rev. C 82, 061303 (2010)

P.J.Davies, A.V.Afanasjev, R.Wadsworth, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, J.Greene, G.F.Grinyer, B.Hyland, D.G.Jenkins, F.L.Johnston-Theasby, P.Joshi, A.O.Macchiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, D.Ward

Evidence of nontermination of collective rotation near the maximum angular momentum in 75Rb

NUCLEAR REACTIONS 40Ca(40Ca, pα), E=165 MeV; measured Eγ, Iγ, γγ-coin, level half-lives with residual Doppler attenuation method using Gammasphere array. 75Kr; deduced transition quadrupole moments for two rotational bands from measured half-lives. Comparison with data for bands in 74Kr and 109Sb. Cranked Nilsson-Strutinsky (CNS) and cranked relativistic mean field (CRMF) calculations.

doi: 10.1103/PhysRevC.82.061303
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2010WI08      Eur.Phys.J. A 43, 145 (2010)

A.N.Wilson, M.C.East, G.D.Dracoulis, A.P.Byrne, R.M.Clark, P.M.Davidson, P.Fallon, A.Gorgen, G.J.Lane, A.O.Macchiavelli, D.Ward

On the character of three 8+ states in 192Pb

NUCLEAR REACTIONS 168Er(29Si, 5n), E=154 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere HPGe detector array. 192Pb; deduced levels, J, π, multipolarities, deformation, configurations. Time-correlated spectroscopy, DCO analysis. Comparison with systematics.

doi: 10.1140/epja/i2010-10905-3
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2009PA17      Phys.Rev. C 79, 044324 (2009)

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

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

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

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

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

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


2008JO07      Phys.Rev. C 78, 034312 (2008)

F.Johnston-Theasby, A.V.Afanasjev, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, S.J.Freeman, P.E.Garrett, J.Greene, A.Gorgen, D.G.Jenkins, P.Joshi, A.O.Macchiavelli, F.Moore, G.Mukherjee, W.Reviol, D.Sarantites, D.Seweryniak, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, R.Wadsworth, D.Ward

Deformation of rotational structures in 73Kr and 74Rb: Probing the additivity principle at triaxial shapes

NUCLEAR REACTIONS 40Ca(40Ca, n2pα), (40Ca, npα), E=165 MeV; measured Eγ, Iγ, electric quadrupole moments, half-lives using residual doppler shift method. 73Kr, 74Rb; deduced levels, J, π, bands, transition quadrupole moments, configurations. Comparisons with cranked Nilsson-Strutinsky and relativistic mean-field calculations.

doi: 10.1103/PhysRevC.78.034312
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2008ST17      Phys.Rev. C 78, 034303 (2008)

F.S.Stephens, M.A.Deleplanque, I.Y.Lee, A.O.Macchiavelli, P.Fallon, R.M.Diamond, D.Ward, R.M.Clark, M.Cromaz

Damping, motional narrowing, and chaos in rotational nuclei

NUCLEAR REACTIONS 124Sn(48Ca, 4n), (48Ca, 5n), (48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin, rotational damping and spreading widths, level mixing. Continuum gamma-ray spectroscopy.

doi: 10.1103/PhysRevC.78.034303
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2008VA03      Phys.Rev. C 77, 024312 (2008)

J.J.Valiente-Dobon, C.E.Svensson, A.V.Afanasjev, I.Ragnarsson, C.Andreoiu, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, D.Dashdorj, P.Fallon, S.J.Freeman, P.E.Garrett, A.Gorgen, G.F.Grinyer, D.F.Hodgson, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, D.Mengoni, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.C.Waddington, R.Wadsworth, D.Ward

Low-spin lifetime measurements in 74Kr

NUCLEAR REACTIONS 40Ca(40Ca, 2pα), E=165 MeV; measured Eγ, Iγ, half-lives, transition quadrupole moments. 74Kr; deduced excitation energies, rotational bands.

doi: 10.1103/PhysRevC.77.024312
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2008WI09      Phys.Rev. C 78, 037302 (2008)

M.Wiedeking, E.Rodriguez-Vieitez, P.Fallon, M.P.Carpenter, R.M.Clark, D.Cline, M.Cromaz, M.Descovich, R.V.F.Janssens, I.-Y.Lee, M.-A.Deleplanque, A.O.Macchiavelli, F.S.Stephens, R.Teng, X.Wang, D.Ward, C.Y.Wu, S.Zhu, T.Otsuka, Y.Utsuno, A.Volya

Intruder excitations in 35P

NUCLEAR REACTIONS 208Pb(36S, X), E=230 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 34Si, 35P; deduced levels, J, π, B(E2). Comparison with shell model calculations.

doi: 10.1103/PhysRevC.78.037302
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2007DA04      Phys.Rev. C 75, 011302 (2007)

P.J.Davies, A.V.Afanasjev, R.Wadsworth, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, S.J.Freeman, P.E.Garrett, A.Gorgen, J.Greene, D.G.Jenkins, F.L.Johnston-Theasby, P.Joshi, A.O.Macchiavelli, F.Moore, G.Mukherjee, W.Reviol, D.Sarantites, D.Seweryniak, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, D.Ward

Identification of the g9/2 proton and neutron band crossing in the N = Z nucleus 76Sr

NUCLEAR REACTIONS 40Ca(40Ca, 2n2p), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 76Sr deduced high-spin levels, J, π, configurations. Gammasphere, Microball arrays, comparison with model predictions.

doi: 10.1103/PhysRevC.75.011302
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2007LA20      Phys.Rev. C 75, 064309 (2007)

T.Lauritsen, R.V.F.Janssens, T.L.Khoo, I.Ahmad, M.P.Carpenter, F.G.Kondev, C.J.Lister, E.F.Moore, D.Seweryniak, S.Zhu, T.Dossing, B.Herskind, A.Korichi, A.Lopez-Martens, R.M.Clark, P.Fallon, G.Lane, A.O.Macchiavelli, D.Ward, A.M.Heinz, D.G.Jenkins, A.J.Larabee, B.Meredith, J.Kozemczak, P.Chowdhury

Rotational damping, ridges, and the quasicontinuum of γ rays in 152Dy

NUCLEAR REACTIONS 108Pd(48Ca, 4n)152Dy, E=191 MeV; measured Eγ, Iγ, γγ-coinc. Analyzed quasicontinuum and ridge spectra and feeding intensity of the superdeformed bands.

doi: 10.1103/PhysRevC.75.064309
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2007PA03      Phys.Rev.Lett. 98, 012501 (2007)

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

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

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

doi: 10.1103/PhysRevLett.98.012501
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2006AL15      Phys.Rev. C 74, 014305 (2006)

A.Al-Khatib, A.K.Singh, H.Hubel, P.Bringel, A.Burger, J.Domscheit, A.Neusser-Neffgen, G.Schonwasser, G.B.Hagemann, C.R.Hansen, B.Herskind, G.Sletten, J.N.Wilson, J.Timar, A.Algora, Zs.Dombradi, J.Gal, G.Kalinka, J.Molnar, B.M.Nyako, D.Sohler, L.Zolnai, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, A.O.Macchiavelli, D.Ward, H.Amro, W.C.Ma, M.Kmiecik, A.Maj, J.Styczen, K.Zuber, K.Hauschild, A.Korichi, A.Lopez-Martens, J.Roccaz, S.Siem, F.Hannachi, J.N.Scheurer, P.Bednarczyk, Th.Byrski, D.Curien, O.Dorvaux, G.Duchene, B.Gall, F.Khalfallah, I.Piqueras, J.Robin, A.Gorgen, K.Juhasz, S.B.Patel, A.O.Evans, G.Rainovski, G.Benzoni, A.Bracco, F.Camera, S.Leoni, P.Mason, B.Million, A.Paleni, R.Sacchi, O.Wieland, C.M.Petrache, D.Petrache, G.La Rana, R.Moro, G.De Angelis, J.C.Lisle, B.Cederwall, K.Lagergren, R.M.Lieder, E.Podsvirova, W.Gast, H.Jager, N.Redon

Competition between collective and noncollective excitation modes at high spin in 124Ba

NUCLEAR REACTIONS 64Ni(64Ni, 4n), E=255, 261, 265 MeV; measured Eγ, Iγ, γγ-coin. 124Ba deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Euroball and Gammasphere arrays.

doi: 10.1103/PhysRevC.74.014305
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2006CH09      Phys.Rev. C 73, 021301 (2006)

C.J.Chiara, D.G.Sarantites, M.Montero, J.O'Brien, W.Reviol, O.L.Pechenaya, R.M.Clark, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Ward, Y.R.Shimizu, W.Satula

Decay-out properties of a linked superdeformed band in 84Zr

NUCLEAR REACTIONS 58Ni(32S, 2pα), E=140 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 84Zr deduced high-spin levels, J, π, superdeformed bands, linking transitions. Gammasphere, Microball arrays. Potential energy surface calculations.

doi: 10.1103/PhysRevC.73.021301
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2006CH57      Phys.Scr. T125, 119 (2006)

C.J.Chiara, D.G.Sarantites, M.Montero, J.O'Brien, W.Reviol, O.L.Pechenaya, R.M.Clark, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Ward, W.Satula, Y.R.Shimizu

Linking transitions in the A ≈ 80 region of superdeformation

NUCLEAR REACTIONS 58Ni(32S, 2pα), E=140 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 84Zr deduced superdeformed band transitions, linking transitions to normal-deformed states. Gammasphere, Microball arrays.

doi: 10.1088/0031-8949/2006/T125/027
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2006EV02      Phys.Rev. C 73, 064303 (2006)

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

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

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

doi: 10.1103/PhysRevC.73.064303
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2006LE41      Phys.Scr. T125, 142 (2006)

I.Y.Lee, F.S.Stephens, M.A.Deleplanque, A.O.Macchiavelli, D.Ward, P.Fallon, M.Cromaz, R.M.Clark, M.Descovich, R.M.Diamond, E.Rodriguez-Vieitez

Order-to-chaos transition in rotational nuclei

NUCLEAR REACTIONS 124Sn(48Ca, 4n), (48Ca, 5n), (48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 168,169,170Yb deduced rotational damping widths, spreading widths, correlation probabilities, ordered and chaotic behavior. Gammasphere array.

doi: 10.1088/0031-8949/2006/T125/033
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2006RI13      Phys.Scr. T125, 123 (2006)

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

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

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

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

doi: 10.1088/0031-8949/2006/T125/028
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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
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2005CL07      Phys.Rev. C 72, 054605 (2005)

R.M.Clark, L.W.Phair, M.Descovich, M.Cromaz, M.A.Deleplanque, P.Fallon, I.Y.Lee, A.O.Macchiavelli, M.A.McMahan, L.G.Moretto, E.Rodriguez-Vieitez, S.Sinha, F.S.Stephens, D.Ward, M.Wiedeking, L.A.Bernstein, J.T.Burke, J.A.Church

Population of nuclei via 7Li-induced binary reactions

NUCLEAR REACTIONS 184W(7Li, xn), (7Li, xnp), (7Li, xnα), E=35-70 MeV; calculated σ. 184W(7Li, X)184Os/185Os/186Os/188Os/184Ir/185Ir/186Ir/183Re/185Re, E=40-70 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, particle yield ratios. 160Gd(7Li, xnp), E=35-65 MeV; analyzed σ. Liberace, Stars arrays.

doi: 10.1103/PhysRevC.72.054605
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2005RI16      J.Phys.(London) G31, S1735 (2005)

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

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

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

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

doi: 10.1088/0954-3899/31/10/064
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2005SI23      Phys.Rev. C 72, 024318 (2005)

A.J.Simons, R.Wadsworth, D.G.Jenkins, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens, C.E.Svensson, K.Vetter, D.Ward, S.Frauendorf, Y.Gu

Investigation of antimagnetic rotation in light Cadmium nuclei: 106, 108Cd

NUCLEAR REACTIONS 62Ni(48Ca, 4n), E=183, 207 MeV; 96Zr(16O, 4n), E=72 MeV; measured Eγ, Iγ, γγ-coin, DSA. 106,108Cd deduced high-spin levels, J, π, T1/2, B(E2), configurations. Gammasphere array.

doi: 10.1103/PhysRevC.72.024318
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2005ST03      Phys.Rev.Lett. 94, 042501 (2005)

F.S.Stephens, M.A.Deleplanque, I.Y.Lee, A.O.Macchiavelli, D.Ward, P.Fallon, M.Cromaz, R.M.Clark, M.Descovich, R.M.Diamond, E.Rodriguez-Vieitez

Order-to-Chaos Transition in Rotational Nuclei

NUCLEAR REACTIONS 124Sn(48Ca, 4n), (48Ca, 5n), (48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 166,167,168Yb deduced transition energy correlations, level spacing and interaction potential features, order-to-chaos transition. Gammasphere array.

doi: 10.1103/PhysRevLett.94.042501
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2005VA09      Phys.Rev. C 71, 034311 (2005)

J.J.Valiente-Dobon, C.E.Svensson, C.D.O'Leary, I.Ragnarsson, C.Andreoiu, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, D.Dashdorj, P.Fallon, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, G.F.Grinyer, D.F.Hodgson, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.C.Waddington, R.Wadsworth, D.Ward, S.J.Williams

High-spin rotational structures in 76Kr

NUCLEAR REACTIONS 40Ca(40Ca, 4p), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 76Kr deduced high-spin levels, J, π, T1/2, transition quadrupole moments, configurations. Gammasphere, Microball arrays, comparison with cranked mean-field model predictions.

doi: 10.1103/PhysRevC.71.034311
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2005VA18      Acta Phys.Pol. B36, 1339 (2005)

J.J.Valiente-Dobon, C.E.Svensson, C.D.O'Leary, I.Ragnarsson, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, J.Greene, G.F.Grinyer, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, R.Wadsworth, D.Ward

Lifetimes of High-spin states in 76Kr

NUCLEAR REACTIONS 40Ca(40Ca, 4p), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 76Kr deduced high-spin levels, J, π, T1/2, configurations. Gammasphere, Microball arrays.


2005WI01      Nucl.Phys. A748, 12 (2005)

A.N.Wilson, G.D.Dracoulis, P.M.Davidson, A.P.Byrne, R.M.Clark, P.Fallon, A.Gorgen, G.J.Lane, A.O.Macchiavelli, D.Ward

Quadrupole moment of the yrast superdeformed band in 192Pb

NUCLEAR REACTIONS 168Er(29Si, 5n), E=154 MeV; measured Eγ, Iγ, γγ-coin, DSA. 192Pb deduced superdeformed band levels T1/2, quadrupole moment. Gammasphere array, total Routhian surface calculations.

doi: 10.1016/j.nuclphysa.2004.10.017
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2005WI10      Eur.Phys.J. A 24, 179 (2005)

A.N.Wilson, G.D.Dracoulis, A.P.Byrne, P.M.Davidson, G.J.Lane, R.M.Clark, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Ward

Observation of a superdeformed band in 190Pb

NUCLEAR REACTIONS 166Er(28Si, 4n), E=143 MeV; measured Eγ, Iγ, γγ-coin. 190Pb deduced high-spin levels, J, π, superdeformed band. Gammasphere array.

doi: 10.1140/epja/i2005-10001-y
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2004CL04      Phys.Rev. C 69, 064322 (2004); Comment Phys.Rev. C 70, 049801 (2004)

R.M.Clark, M.Cromaz, M.A.Deleplanque, M.Descovich, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, H.Mahmud, E.Rodriguez-Vieitez, F.S.Stephens, D.Ward

Searching for E(5) behavior in nuclei

NUCLEAR STRUCTURE Z=30-82; analyzed level energies, B(E2) for even-even nuclides. 102Pd, 106,108Cd, 124Te, 128Xe, 134Ba deduced E(5) symmetry features.

doi: 10.1103/PhysRevC.69.064322
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2004EV01      Phys.Rev.Lett. 92, 252502 (2004)

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

High-Spin Structure beyond Band Termination in 157Er

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

doi: 10.1103/PhysRevLett.92.252502
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2004GO14      Phys.Rev. C 69, 031301 (2004)

A.Gorgen, R.M.Clark, M.Cromaz, P.Fallon, G.B.Hagemann, H.Hubel, I.Y.Lee, A.O.Macchiavelli, G.Sletten, D.Ward, R.Bengtsson

Quadrupole moments of wobbling excitations in 163Lu

NUCLEAR REACTIONS 123Sb(44Ca, 4n), E=190 MeV; measured Eγ, Iγ, γγ-coin, DSA. 163Lu deduced triaxial superdeformed bands transitions T1/2, B(E2), B(M1), quadrupole moments. Gammasphere array. Comparison with cranking calculations.

doi: 10.1103/PhysRevC.69.031301
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2004KA18      Phys.Rev. C 69, 034330 (2004)

D.Karlgren, R.M.Clark, I.Ragnarsson, C.E.Svensson, D.Ward, R.Wyss, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, A.Gorgen, R.V.F.Janssens, T.L.Khoo, F.Kondev, G.J.Lane, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, T.Rodinger, D.Rudolph, D.G.Sarantites, D.Seweryniak, T.Steinhardt, F.S.Stephens, O.Thelen, K.Vetter, J.C.Waddington

High-angular-momentum structures in 64Zn

NUCLEAR REACTIONS 40Ca(28Si, 4p), E=122 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 64Zn deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Gammasphere, Microball arrays, cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.69.034330
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2004KE04      Eur.Phys.J. A 20, 131 (2004)

N.S.Kelsall, C.E.Svensson, S.Fischer, D.E.Appelbe, R.A.E.Austin, D.P.Balamuth, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, D.F.Hodgson, R.V.F.Janssens, D.G.Jenkins, G.J.Lane, C.J.Lister, A.O.Macchiavelli, C.D.O'Leary, D.G.Sarantites, F.S.Stephens, D.C.Schmidt, D.Seweryniak, K.Vetter, J.C.Waddington, R.Wadsworth, D.Ward, A.N.Wilson, A.V.Afanasjev, S.Frauendorf, I.Ragnarsson

High-spin structure of N ≈ Z nuclei around the A = 72 region

NUCLEAR REACTIONS 40Ca(36Ar, n3p), E=145 MeV; 40Ca(40Ca, 2α), E=164 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 72Br, 72Kr deduced high-spin levels.

doi: 10.1140/epja/i2002-10338-7
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2004LE39      Nucl.Phys. A746, 255c (2004)

I.Y.Lee, R.M.Clark, M.Cromaz, M.A.Deleplanque, M.Descovich, R.M.Diamond, P.Fallon, A.O.Macchiavelli, F.S.Stephens, D.Ward

GRETINA: A gamma ray energy tracking array

doi: 10.1016/j.nuclphysa.2004.09.038
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2004MB08      Braz.J.Phys. 34, 885 (2004)

G.V.Marti, A.J.Pacheco, J.E.Testoni, D.Abriola, O.A.Capurro, D.E.DiGregorio, J.O.Fernandez Niello, A.O.Macchiavelli, R.M.Clark, P.Fallon, A.Goergen, D.Ward, C.Y.Wu, A.Hayes, D.Cline, R.Teng

Measurement of Inelastic-Scattering Cross Sections in the 16O+28Si System to Discriminate Regular and Chaotic Regimes

NUCLEAR REACTIONS 28Si(16O, 16O'), E=40-46, 71, 73, 75 MeV; measured Eγ, Iγ, (particle)γ-coin, σ(θ). Gammasphere, Chico arrays.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1543.


2004OL04      Phys.Rev. C 69, 034316 (2004)

C.D.O'Leary, R.Wadsworth, P.Fallon, C.E.Svensson, I.Ragnarsson, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, D.F.Hodgson, R.V.F.Janssens, D.G.Jenkins, N.S.Kelsall, G.J.Lane, C.J.Lister, A.O.Macchiavelli, D.Sarantites, F.S.Stephens, D.Seweryniak, K.Vetter, J.C.Waddington, D.Ward

High-spin study of rotational structures in 72Br

NUCLEAR REACTIONS 40Ca(36Ar, n3p), E=145 MeV; measured Eγ, Iγ, γγ-, (neutron)γ-, (charged particle)γ-coin. 72Br deduced high-spin levels, J, π, configurations, transition quadrupole moments. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.69.034316
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Data from this article have been entered in the XUNDL database. For more information, click here.


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
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2004SI27      Phys.Rev. C 70, 034315 (2004)

A.K.Singh, H.Hubel, J.Domscheit, G.B.Hagemann, B.Herskind, D.R.Jensen, J.N.Wilson, R.Clark, M.Cromaz, P.Fallon, A.Gorgen, I.Y.Lee, A.O.Macchiavelli, D.Ward, H.Amro, W.C.Ma, J.Timar, I.Ragnarsson

Evidence for noncollective oblate structures at high spin in 123Cs

NUCLEAR REACTIONS 64Ni(64Ni, 4np), E=265 MeV; measured Eγ, Iγ, γγ-coin. 123Cs deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Gammasphere array, cranked mean-field calculations.

doi: 10.1103/PhysRevC.70.034315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2004SM10      Nucl.Phys. A746, 617c (2004)

M.B.Smith, P.M.Walker, R.S.Chakrawarthy, R.A.E.Austin, G.C.Ball, J.J.Carroll, E.Cunningham, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, B.Hyland, K.Koopmans, W.D.Kulp, J.R.Leslie, A.A.Phillips, R.Propri, P.H.Regan, F.Sarazin, M.A.Schumaker, H.C.Scraggs, T.Shizuma, C.E.Svensson, J.von Schwarzenberg, J.C.Waddington, D.Ward, J.L.Wood, B.Washbrook, E.F.Zganjar

Studies of high-K isomers at TRIUMF-ISAC

RADIOACTIVITY 178Hf, 178,179Lu(IT) [from Ta(p, X)]; measured Eγ, Iγ, γγ-coin following high-spin isomer decay.

doi: 10.1016/j.nuclphysa.2004.09.101
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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
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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
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2003AM01      Phys.Lett. B 553, 197 (2003)

H.Amro, W.C.Ma, G.B.Hagemann, R.M.Diamond, J.Domscheit, P.Fallon, A.Gorgen, B.Herskind, H.Hubel, D.R.Jensen, Y.Li, A.O.Macchiavelli, D.Roux, G.Sletten, J.Thompson, D.Ward, I.Wiedenhover, J.N.Wilson, J.A.Winger

The wobbling mode in 167Lu

NUCLEAR REACTIONS 123Sb(48Ca, 4n), E=203 MeV; measured Eγ, Iγ, γγ-coin. 167Lu deduced high-spin levels, J, π, δ, triaxial superdeformed bands, wobbling mode. Gammasphere array, cranked mean-field calculations.

doi: 10.1016/S0370-2693(02)03199-4
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2003CL02      Phys.Rev. C 67, 041302 (2003); Comment Phys.Rev. C 68, 059801 (2003)

R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, A.Gorgen, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens, D.Ward

Reexamination of the N = 90 transitional nuclei 150Nd and 152Sm

NUCLEAR STRUCTURE 150Nd, 152Sm; analyzed rotational band transitions B(E2), level energies, configurations. Several models compared.

doi: 10.1103/PhysRevC.67.041302
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2003CL06      Phys.Rev. C 68, 037301 (2003)

R.M.Clark, M.Cromaz, M.A.Deleplanque, M.Descovich, R.M.Diamond, P.Fallon, R.B.Firestone I.Y.Lee, A.O.Macchiavelli, H.Mahmud, E.Rodriguez-Vieitez, F.S.Stephens, D.Ward

Searching for X(5) behavior in nuclei

NUCLEAR STRUCTURE 104Mo, 126Ba, 126,130Ce, 134Sm, 150Nd, 152Sm, 154Gd, 156Dy, 158Er, 162Yb, 170,172W, 190,192Os; analyzed yrast level energies, B(E2). 126Ba, 130Ce, 150Nd, 152Sm, 154Gd, 156Dy; deduced possible X(5) critical point behavior.

doi: 10.1103/PhysRevC.68.037301
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2003HE27      Acta Phys.Pol. B34, 2467 (2003)

B.Herskind, G.Benzoni, J.N.Wilson, T.Dossing, G.B.Hagemann, G.Sletten, C.R.Hansen, D.R.Jensen, A.Bracco, F.Camera, S.Leoni, P.Mason, O.Wieland, A.Maj, M.Brekiesz, M.Kmiecik, H.Hubel, P.Bringel, A.Neusser, A.K.Singh, R.M.Diamond, R.M.Clark, M.Cromaz, P.Fallon, A.Gorgen, I.Y.Lee, A.O.Macchiavelli, D.Ward, F.Hannachi, A.Korichi, A.Lopez-Martens, T.Byrski, D.Curien, P.Bednarczyk, J.Dudek, H.Amro, W.C.Ma, J.Lisle, S.Odegard, C.Petrache, D.Petrache, T.Steinhardt, O.Thelen

Hunting grounds for Jacobi transitions and hyperdeformations

NUCLEAR REACTIONS 64Ni(64Ni, 2n), E=261 MeV; 82Se(48Ca, 4n), E=195 MeV; measured Eγ, Iγ, γγ-coin. 126Ba, 126Xe deduced quasi-continuum rotational bands deformation, related features. Gammasphere, Euroball arrays.


2003SI14      Phys.Rev.Lett. 91, 162501 (2003)

A.J.Simons, R.Wadsworth, D.G.Jenkins, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens, C.E.Svensson, K.Vetter, D.Ward, S.Frauendorf

Evidence for a New Type of Shears Mechanism in 106Cd

NUCLEAR REACTIONS 62Ni(48Ca, 4n), E=183, 207 MeV; measured Eγ, Iγ, γγ-coin, DSA. 106Cd deduced high-spin levels T1/2, B(E2), deformations, shears band, antimagnetic rotation. Gammasphere array.

doi: 10.1103/PhysRevLett.91.162501
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2003WI04      Phys.Rev.Lett. 90, 142501 (2003)

A.N.Wilson, G.D.Dracoulis, A.P.Byrne, P.M.Davidson, G.J.Lane, R.M.Clark, P.Fallon, A.Gorgen, A.O.Macchiavelli, D.Ward

Direct Decays from Superdeformed States in 192Pb Observed Using Time-Correlated γ-Ray Spectroscopy

NUCLEAR REACTIONS 168Er(29Si, 5n), E=154 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin. 192Pb deduced linking transitions between normal-deformed and superdeformed states, superdeformed band excitation energy, J, π. Gammasphere array. Comparison with model predictions.

doi: 10.1103/PhysRevLett.90.142501
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2002GO03      Phys.Rev. C65, 027302 (2002)

A.Gorgen, R.M.Clark, P.Fallon, M.Cromaz, M.A.Deleplanque, R.M.Diamond, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, R.G.Ramos, F.S.Stephens, C.E.Svensson, K.Vetter, D.Ward, M.P.Carpenter, R.V.F.Janssens, R.Wadsworth

Excited Structure with a Very Extended Shape in 108Cd

NUCLEAR REACTIONS 64Ni(48Ca, 4n), E=207 MeV; measured Eγ, Iγ, γγ-coin, fractional Doppler shifts. 108Cd deduced high-spin levels, J, π, rotational band quadrupole moment, extreme deformation. Gammasphere array.

doi: 10.1103/PhysRevC.65.027302
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2002LA02      Phys.Rev.Lett. 88, 042501 (2002)

T.Lauritsen, M.P.Carpenter, T.Dossing, P.Fallon, B.Herskind, R.V.F.Janssens, D.G.Jenkins, T.L.Khoo, F.G.Kondev, A.Lopez-Martens, A.O.Macchiavelli, D.Ward, K.S.Abu Saleem, I.Ahmad, R.Clark, M.Cromaz, J.P.Greene, F.Hannachi, A.M.Heinz, A.Korichi, G.Lane, C.J.Lister, P.Reiter, D.Seweryniak, S.Siem, R.C.Vondrasek, I.Wiedenhover

Direct Decay from the Superdeformed Band to the Yrast Line in 66152Dy86

NUCLEAR REACTIONS 76Ge(80Se, 4n), E=311 MeV; 108Pd(48Ca, 4n), E=191 MeV; measured Eγ, Iγ, γγ-coin. 152Dy deduced superdeformed levels J, π, linking transitions. Gammasphere array.

doi: 10.1103/PhysRevLett.88.042501
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2002LA35      Phys.Rev.Lett. 89, 282501 (2002)

T.Lauritsen, R.V.F.Janssens, M.P.Carpenter, P.Fallon, B.Herskind, D.G.Jenkins, T.L.Khoo, F.G.Kondev, A.Lopez-Martens, A.O.Macchiavelli, D.Ward, K.Abu Saleem, I.Ahmad, R.M.Clark, M.Cromaz, T.Dossing, A.M.Heinz, A.Korichi, G.Lane, C.J.Lister, D.Seweryniak

Octupole Vibration in Superdeformed 15266Dy86

NUCLEAR REACTIONS 108Pd(48Ca, 4n), E=191 MeV; measured Eγ, Iγ, γγ-coin. 152Dy deduced high-spin levels, J, π, superdeformed band energy, octupole vibration, linking transitions branching ratios, B(E1), B(M1). Gammasphere array.

doi: 10.1103/PhysRevLett.89.282501
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2002SC47      Eur.Phys.J. A 15, 435 (2002)

G.Schonwasser, H.Hubel, G.B.Hagemann, H.Amro, R.M.Clark, M.Cromaz, R.M.Diamond, P.Fallon, B.Herskind, G.Lane, W.C.Ma, A.O.Macchiavelli, S.W.Odegard, G.Sletten, D.Ward, J.N.Wilson

Comparative quadrupole moments of triaxial superdeformed states in 163, 164, 165Lu

NUCLEAR REACTIONS 124Sn(45Sc, 4n), (45Sc, 5n), (45Sc, 6n), E=217 MeV; measured Eγ, Iγ, γγ-coin, DSA. 163,164,165Lu deduced rotational bands T1/2, transition quadrupole moments. Gammasphere array.

doi: 10.1140/epja/i2002-10097-5
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2002ST12      Phys.Rev.Lett. 88, 142501 (2002)

F.S.Stephens, M.A.Deleplanque, I.Y.Lee, D.Ward, P.Fallon, M.Cromaz, R.M.Clark, R.M.Diamond, A.O.Macchiavelli, K.Vetter

Rotational Damping in Ytterbium Nuclei

NUCLEAR REACTIONS 124Sn(48Ca, 4n), (48Ca, 5n), (48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 166,167,168Yb deduced rotational damping widths.

doi: 10.1103/PhysRevLett.88.142501
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2002WA24      Phys.Rev. C66, 024317 (2002)

D.Ward, R.M.Diamond, W.J.Swiatecki, R.M.Clark, M.Cromaz, M.A.Deleplanque, P.Fallon, A.Goergen, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, W.Myers, F.S.Stephens, C.E.Svensson, K.Vetter

Search for the Jacobi shape transition in rapidly rotating nuclei

NUCLEAR REACTIONS 50Ti, 64Ni, 96Zr, 124Sn(48Ca, xnypzα), E=195-215 MeV; measured Eγ, Iγ, γγ-coin, multiplicities; deduced quasicontinuum spectrum features, moment of inertia vs angular momentum, possible Jacobi shape transition. 91Nb, 108Cd, 140Nd, 168Yb; deduced collective E2 bump centroids. Gammasphere and 8PI arrays.

doi: 10.1103/PhysRevC.66.024317
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2001CH71      Phys.Rev. C64, 054314 (2001)

C.J.Chiara, D.B.Fossan, V.P.Janzen, T.Koike, D.R.LaFosse, G.J.Lane, S.M.Mullins, E.S.Paul, D.C.Radford, H.Schnare, J.M.Sears, J.F.Smith, K.Starosta, P.Vaska, R.Wadsworth, D.Ward, S.Frauendorf

Spectroscopy in the Z = 49 108, 110In Isotopes: Lifetime measurements in shears bands

NUCLEAR REACTIONS 76Ge(37Cl, 5n), E=138 MeV; measured Eγ, Iγ, γγ-coin. 96Zr(19F, 5n), E=85, 88 MeV; 94Mo(18O, 3np), E=85 MeV; measured Eγ, Iγ, γγ-coin, DSA. 108,110In deduced high-spin levels, J, π, configurations, T1/2, B(M1), B(E2), shears bands features. Tilted-axis cranking calculations.

doi: 10.1103/PhysRevC.64.054314
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2001CL06      Phys.Rev.Lett. 87, 202502 (2001)

R.M.Clark, P.Fallon, A.Gorgen, M.Cromaz, M.A.Deleplanque, R.M.Diamond, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, R.G.Ramos, F.S.Stephens, C.E.Svensson, K.Vetter, D.Ward, M.P.Carpenter, R.V.F.Janssens, R.Wadsworth

Very Extended Shapes in the A ∼ 110 Region

NUCLEAR REACTIONS 64Ni(48Ca, 4n), E=207 MeV; measured Eγ, Iγ, γγ-coin. 108Cd deduced superdeformed band transitions, quadrupole moments, deformation. Gammasphere array.

NUCLEAR STRUCTURE 36Ar, 60Zn, 82Sr, 91Tc, 108Cd, 132Ce, 152Dy, 192Hg, 236U; A=20-250; compiled, analyzed ground-state and superdeformed bands quadrupole moments.

doi: 10.1103/PhysRevLett.87.202502
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2001DO09      Nucl.Phys. A689, 655 (2001)

J.Domscheit, A.Gorgen, J.Ernst, P.Fallon, B.Herskind, H.Hubel, W.Korten, I.Y.Lee, A.O.Macchiavelli, N.Nenoff, S.Siem, D.Ward, J.N.Wilson

Angular Momentum Limit of Hf Isotopes Produced in Three Fusion-Evaporation Reactions

NUCLEAR REACTIONS 118Sn(50Ti, xn), E=215-231; 104Ru(64Ni, xn), E=255-282 MeV; 94Zr(74Ge, xn), E=291-321 MeV; measured Eγ, Iγ, γγ-coin, relative cross section. 163,164,165,166Hf deduced γ-ray multiplicity, angular momentum, γ-decay entry region.

doi: 10.1016/S0375-9474(00)00614-X
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2001GR07      Nucl.Phys. A682, 41c (2001)

R.Grzywacz, C.H.Yu, Z.Janas, S.D.Paul, J.C.Batchelder, C.R.Bingham, T.N.Ginter, C.J.Gross, J.McConnell, M.Lipoglavsek, A.Piechaczek, D.C.Radford, J.J.Ressler, K.Rykaczewski, J.Shergur, W.B.Walters, E.F.Zganjar, C.Baktash, M.P.Carpenter, R.V.F.Janssens, C.E.Svensson, J.C.Waddington, D.Ward, E.Dragulescu

In-Beam Study of the N = Z Nucleus 3366As33 using the Decay Tagging Technique

NUCLEAR REACTIONS 40Ca(28Si, np), E=85.3 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 66As deduced levels, J, π, isomers T1/2. Clarion array, mass separator, recoil-decay tagging.

doi: 10.1016/S0375-9474(00)00620-5
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2001LA09      Nucl.Phys. A682, 71c (2001)

G.J.Lane, R.Broda, B.Fornal, A.P.Byrne, G.D.Dracoulis, J.Blomqvist, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, R.V.F.Janssens, I.Y.Lee, A.O.Macchiavelli, K.H.Maier, M.Rejmund, F.S.Stephens, C.E.Svensson, K.Vetter, D.Ward, I.Wiedenhover, J.Wrzesinski

Structure of Exotic Nuclei Near and Above 208Pb Populated via Deep-Inelastic Collisions

NUCLEAR REACTIONS 238U(208Pb, X)206Hg/210Pb/211Bi, E not given; measured prompt and delayed Eγ, Iγ, γγ-coin. 206Hg, 210Pb, 211Bi deduced levels, J, π, configurations. Gammasphere array.

doi: 10.1016/S0375-9474(00)00624-2
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2001LE37      Acta Phys.Pol. B32, 2499 (2001)

I.Y.Lee, R.M.Clark, D.Ward, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, A.Gorgen, G.J.Lane, A.O.Macchiavelli, F.S.Stephens, C.E.Svensson, K.Vetter

Recent Results from Gammasphere

NUCLEAR REACTIONS 64Ni(48Ca, 4n), E=207 MeV; measured Eγ, Iγ, γγ-coin. 108Cd deduced superdeformed band. 50Ti, 64Ni, 96Zr, 124Sn(48Ca, X), E not given; measured Eγ, Iγ, fold. 98Mo, 112Cd, 144Nd, 172Yb deduced Eγ vs spin for compound nucleus decay. 51V(13C, X), E=30 MeV/nucleon; measured Eγ, Iγ; deduced fragment yields. 48Ti, 42Ar deduced transitions. Gammasphere array.


2001SV01      Nucl.Phys. A682, 1c (2001)

C.E.Svensson, A.O.Macchiavelli, A.Juodagalvis, A.Poves, I.Ragnarsson, S.Aberg, D.E.Appelbe, R.A.E.Austin, C.Baktash, G.C.Ball, M.P.Carpenter, E.Caurier, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, M.Furlotti, A.Galindo-Uribarri, R.V.F.Janssens, G.J.Lane, I.Y.Lee, M.Lipoglavsek, F.Nowacki, S.D.Paul, D.C.Radford, D.G.Sarantites, D.Seweryniak, F.S.Stephens, V.Tomov, K.Vetter, D.Ward, C.H.Yu

Collective Rotational Motion in the N = Z Nucleus 36Ar

NUCLEAR REACTIONS 24Mg(20Ne, 2α), E=80 MeV; measured Eγ, Iγ, (charged particle)γ-, γγ-coin, DSA. 36Ar deduced high-spin levels, J, π, T1/2, superdeformed band. Gammasphere, Microball arrays. Shell model and cranked mean-field calculations.

doi: 10.1016/S0375-9474(00)00615-1
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2001SV02      Phys.Rev. C63, 061301 (2001)

C.E.Svensson, A.O.Macchiavelli, A.Juodagalvis, A.Poves, I.Ragnarsson, S.Aberg, D.E.Appelbe, R.A.E.Austin, G.C.Ball, M.P.Carpenter, E.Caurier, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, R.V.F.Janssens, G.J.Lane, I.Y.Lee, F.Nowacki, D.G.Sarantites, F.S.Stephens, K.Vetter, D.Ward

Lifetimes of Superdeformed Rotational States in 36Ar

NUCLEAR REACTIONS 24Mg(20Ne, 2α), E=80 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 36Ar deduced high-spin levels, superdeformed band J, π, T1/2, B(E2), quadrupole deformation. Gammasphere, Microball arrays. Comparison with cranked mean-field and large-scale shell model calculations.

doi: 10.1103/PhysRevC.63.061301
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2001SV03      Acta Phys.Pol. B32, 2413 (2001)

C.E.Svensson, A.O.Macchiavelli, A.Juodagalvis, A.Poves, I.Ragnarsson, S.Aberg, D.E.Appelbe, R.A.E.Austin, C.Baktash, G.C.Ball, M.P.Carpenter, E.Caurier, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, M.Furlotti, A.Galindo-Uribarri, R.V.F.Janssens, G.J.Lane, I.Y.Lee, M.Lipoglavsek, F.Nowacki, S.D.Paul, D.C.Radford, D.G.Sarantites, D.Seweryniak, F.S.Stephens, V.Tomov, K.Vetter, D.Ward, C.H.Yu

Fast Rotation of the N = Z Nucleus 36Ar

NUCLEAR REACTIONS 24Mg(20Ne, 2α), E=80 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 36Ar deduced high-spin levels, J, π, configurations, deformation, band termination. Gammasphere, Microball arrays. Cranked mean-field calculations.


2001WA02      Phys.Rev. C63, 014301 (2001)

D.Ward, C.E.Svensson, I.Ragnarsson, C.Baktash, M.A.Bentley, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, M.A.Deleplanque, M.Devlin, R.M.Diamond, P.Fallon, S.Flibotte, A.Galindo-Uribarri, D.S.Haslip, R.V.F.Janssens, T.Lampman, G.J.Lane, I.Y.Lee, F.Lerma, A.O.Macchiavelli, S.D.Paul, D.Radford, D.Rudolph, D.G.Sarantites, B.Schaly, D.Seweryniak, F.S.Stephens, O.Thelen, K.Vetter, J.C.Waddington, J.N.Wilson, C.-H.Yu

Band Structure of 68Ge

NUCLEAR REACTIONS 40Ca(32S, 4p), E=134 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 68Ge deduced high-spin levels, J, π, configurations, superdeformed band, terminating bands. Gammasphere, Microball arrays. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.63.014301
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2000AP02      Eur.Phys.J. A 8, 153 (2000)

D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, B.Djerroud, T.E.Drake, S.Flibotte, C.D.O'Leary, A.Melarangi, C.E.Svensson, J.C.Waddington, D.Ward

Gamma-Ray Spectroscopy of 2557Mn32 and 2558Mn33

NUCLEAR REACTIONS 48Ca(13C, 2np), (13C, 3np), E=40 MeV; measured Eγ, Iγ, γγ-coin. 57,58Mn deduced high-spin levels, J, π.

doi: 10.1007/s100530050020
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2000AP03      Phys.Rev. C62, 064314 (2000)

D.E.Appelbe, G.Martinez-Pinedo, R.A.E.Austin, J.A.Cameron, J.Chenkin, T.E.Drake, B.Djerroud, S.Flibotte, D.N.Parker, C.E.Svensson, J.C.Waddington, D.Ward

γ-Ray Spectroscopy of 2656Fe30

NUCLEAR REACTIONS 48Ca(13C, 5n), E=65 MeV; measured Eγ, Iγ, γγ-coin. 56Fe deduced high-spin levels, J, π, quadrupole moments. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.62.064314
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2000CL01      Phys.Rev. C61, 044311 (2000)

R.M.Clark, J.N.Wilson, D.Appelbe, M.P.Carpenter, C.J.Chiara, M.Cromaz, M.A.Deleplanque, M.Devlin, R.M.Diamond, P.Fallon, D.B.Fossan, R.V.F.Janssens, D.G.Jenkins, N.Kelsall, T.Koike, D.R.LaFosse, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, D.G.Sarantites, D.Seweryniak, K.Starosta, F.S.Stephens, C.E.Svensson, K.Vetter, R.Wadsworth, J.C.Waddington, D.Ward, I.Wiedenhover, B.A.Brown

Yrast and Near-Yrast Excitations Up to High Spin in 48100Cd52

NUCLEAR REACTIONS 46Ti(58Ni, 2n2p), E=215 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 100Cd deduced levels, J, π. Gammasphere, Microball arrays. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.61.044311
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2000DJ01      Phys.Rev. C61, 024607 (2000)

B.Djerroud, B.Schaly, S.Flibotte, G.C.Ball, S.Courtin, M.Cromaz, D.S.Haslip, T.Lampman, A.O.Macchiavelli, J.M.Nieminen, C.E.Svensson, J.C.Waddington, D.Ward, J.N.Wilson

Fission Barriers, Coupled-Channel, and Shell Effects at the Coulomb Barrier in the A ∼ 190 Mass Region

NUCLEAR REACTIONS 142Nd(48Ca, 2n), E=185 MeV; 110Pd(80Se, 2n), E=304 MeV; measured γ-ray fold; deduced role of shell effects, coupled channels, fission barrier features. Statistical model calculations.

doi: 10.1103/PhysRevC.61.024607
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2000GO47      Eur.Phys.J. A 9, 161 (2000)

A.Gorgen, H.Hubel, D.Ward, S.Chmel, R.M.Clark, M.Cromaz, R.M.Diamond, P.Fallon, K.Hauschild, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, K.Vetter

Search for Magnetic Rotation in 202Pb and 203Pb

NUCLEAR REACTIONS 198Pt(9Be, 4n), (9Be, 5n), E=60 MeV; measured Eγ, Iγ, γγ-coin. 202Pb deduced high-spin levels, J, π, δ, magnetic rotation. 203Pb deduced transitions.

doi: 10.1007/s100500070032
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2000MA13      Phys.Rev. C61, 041303 (2000)

A.O.Macchiavelli, P.Fallon, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, G.J.Lane, I.Y.Lee, F.S.Stephens, C.E.Svensson, K.Vetter, D.Ward

Is There np Pairing in N = Z Nuclei ?

NUCLEAR STRUCTURE A=10-64; analyzed N=Z nuclei binding energies; deduced isovector np pairing, no deuteron-like pair correlations.

doi: 10.1103/PhysRevC.61.041303
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2000MA31      Phys.Lett. 480B, 1 (2000)

A.O.Macchiavelli, P.Fallon, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, G.J.Lane, I.Y.Lee, F.S.Stephens, C.E.Svensson, K.Vetter, D.Ward

Collective T = 0 Pairing in N = Z Nuclei ? Pairing Vibrations Around 56Ni Revisited

NUCLEAR STRUCTURE 52Cr, 52Mn, 52,54Fe, 54,56,58,60Ni, 58,60Cu, 58,60Zn; analyzed pairing-vibrational levels; deduced collectivity in isovector vibrations, no collectivity in isoscalar vibrations.

doi: 10.1016/S0370-2693(00)00381-6
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2000PE01      Phys.Rev. C61, 011305 (1999)(2000)

C.M.Petrache, G.Lo Bianco, D.Ward, A.Galindo-Uribarri, P.Spolaore, D.Bazzacco, T.Kroll, S.Lunardi, R.Menegazzo, C.Rossi Alvarez, A.O.Macchiavelli, M.Cromaz, P.Fallon, G.J.Lane, W.Gast, R.M.Lieder, G.Falconi, A.V.Afanasjev, I.Ragnarsson

Stable Triaxiality at the Highest Spins in 138Nd and 139Nd

NUCLEAR REACTIONS 94Zr(48Ca, 3n), (48Ca, 4n), E=195 MeV; measured Eγ, Iγ, γγ-coin. 138,139Nd deduced high-spin levels, J, π, configurations, triaxial deformation. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.61.011305
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2000PO16      Phys.Rev. C62, 034303 (2000)

Zs.Podolyak, P.M.Walker, D.M.Cullen, G.D.Dracoulis, P.Fallon, B.Fairchild, K.Hauschild, A.O.Macchiavelli, D.P.McNabb, A.Savelius, D.Ward, C.Wheldon

Search for Very Long-Lived Isomers in the Hafnium-Tungsten Region

NUCLEAR REACTIONS 48Ca(134Xe, xnypzα), E=535 MeV; 48Ca(136Xe, xnypzα), E=535, 550 MeV; measured delayed Eγ, Iγ, γγ-coin. 177,178,179,180,181W, 177,178,179,180,181Ta, 175,176,177,178Hf; deduced limits on isomer T1/2.

doi: 10.1103/PhysRevC.62.034303
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2000SV02      Phys.Rev.Lett. 85, 2693 (2000)

C.E.Svensson, A.O.Macchiavelli, A.Juodagalvis, A.Poves, I.Ragnarsson, S.Aberg, D.E.Appelbe, R.A.E.Austin, C.Baktash, G.C.Ball, M.P.Carpenter, E.Caurier, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, M.Furlotti, A.Galindo-Uribarri, R.V.F.Janssens, G.J.Lane, I.Y.Lee, M.Lipoglavsek, F.Nowacki, S.D.Paul, D.C.Radford, D.G.Sarantites, D.Seweryniak, F.S.Stephens, V.Tomov, K.Vetter, D.Ward, C.H.Yu

Superdeformation in the N = Z Nucleus 36Ar: Experimental, deformed mean field, and spherical shell model descriptions

NUCLEAR REACTIONS 24Mg(20Ne, 2α), E=80 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 36Ar deduced high-spin levels, J, π, superdeformed band, configurations. Gammasphere, Microball arrays. Cranked mean-field calculations, shell model calculations.

doi: 10.1103/PhysRevLett.85.2693
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2000ZW02      J.Phys.(London) G26, 849 (2000)

G.Zwartz, T.E.Drake, M.Cromaz, D.Ward, V.Janzen, A.Galindo-Uribarri, D.Prevost, J.Waddington, S.M.Mullins

Magnetic Dipole Bands in 198Bi

NUCLEAR REACTIONS 184W(19F, 5n), E=107 MeV; measured Eγ, Iγ(θ), γγ-coin. 198Bi deduced high-spin levels, γ multipolarities, B(M1)/B(E2), band characteristics, moment of inertia and configuration.

doi: 10.1088/0954-3899/26/6/308
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2000ZW03      J.Phys.(London) G26, 1723 (2000)

G.Zwartz, T.E.Drake, M.Cromaz, D.Ward, V.Janzen, A.Galindo-Uribarri, D.Prevost, J.Waddington, S.M.Mullins

Investigation of the use of an α + Xn Reaction Channel to Enhance the Population of Superdeformed States in 193Hg and 195Hg

NUCLEAR REACTIONS 184W(18O, 5nα), (18O, 6n), (18O, 7n), E=115, 120 MeV; 186W(18O, 5nα), E=105, 110 MeV; 164Dy(30Si, 4n), E=147 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 190,193Hg deduced superdeformed bands transitions, relative intensities.

doi: 10.1088/0954-3899/26/11/307
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1999CR01      Phys.Rev. C59, 2406 (1999)

M.Cromaz, J.DeGraaf, T.E.Drake, D.Ward, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, S.Flibotte, S.M.Mullins, J.Rodriguez, S.Pilotte

High Spin Spectroscopy of 167Hf

NUCLEAR REACTIONS 155Gd(16O, 4n), E=85 MeV; 146Nd(26Mg, 5n), E=142 MeV; measured Eγ, Iγ, γγ-coin. 167Hf deduced high-spin levels, J, π, configurations. Cranked mean field calculations. Quasi-continuum ridge discussed, crossing frequencies from neighboring isotopes compared.

doi: 10.1103/PhysRevC.59.2406
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1999GO21      Eur.Phys.J. A 6, 141 (1999)

A.Gorgen, H.Hubel, D.Ward, S.Chmel, R.M.Clark, M.Cromaz, R.M.Diamond, P.Fallon, K.Hauschild, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, K.Vetter

Spectroscopy of 200Hg After Incomplete Fusion Reaction

NUCLEAR REACTIONS 198Pt(9Be, X)201Pb/202Pb/203Pb/199Hg/200Hg, E=60 MeV; measured Eγ, Iγ, γγ-coin; deduced yields, incomplete fusion mechanism. 200Hg deduced high-spin levels, J, π. Comparison with rotational bands in lighter even-A Hg isotopes.

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1999OB01      Phys.Rev. C59, 1334 (1999)

N.J.O'Brien, A.Galindo-Uribarri, V.P.Janzen, D.T.Joss, P.J.Nolan, C.M.Parry, E.S.Paul, D.C.Radford, R.Wadsworth, D.Ward

Highly Deformed and Triaxial Structures in 134Ce

NUCLEAR REACTIONS 124Sn(16O, 6n), E=120, 125 MeV; measured Eγ, Iγ, γγ-coin. 134Ce deduced high-spin, highly-deformed rotational bands, moments of inertia. Cranked Woods-Saxon, TRS calculations.

doi: 10.1103/PhysRevC.59.1334
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1999PA46      Phys.Rev. C60, 054314 (1999)

C.M.Parry, I.M.Hibbert, R.Wadsworth, A.N.Wilson, E.S.Paul, A.Galindo-Uribarri, V.P.Janzen, D.Ward, S.M.Mullins, P.H.Regan, C.E.Svensson, R.Wyss

Evidence for Highly Deformed Bands in 62133Sm71

NUCLEAR REACTIONS 96Ru(40Ca, n2p), E ≈ 180 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 133Sm deduced high-spin levels, J, π, B(M1)/B(E2), configurations, deformation. Cranked mean field calculations, total Routhian surfaces.

doi: 10.1103/PhysRevC.60.054314
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1999SV01      Phys.Rev.Lett. 82, 3400 (1999)

C.E.Svensson, D.Rudolph, C.Baktash, M.A.Bentley, J.A.Cameron, M.P.Carpenter, M.Devlin, J.Eberth, S.Flibotte, A.Galindo-Uribarri, G.Hackman, D.S.Haslip, R.V.F.Janssens, D.R.LaFosse, T.J.Lampman, I.Y.Lee, F.Lerma, A.O.Macchiavelli, J.M.Nieminen, S.D.Paul, D.C.Radford, P.Reiter, L.L.Riedinger, D.G.Sarantites, B.Schaly, D.Seweryniak, O.Thelen, H.G.Thomas, J.C.Waddington, D.Ward, W.Weintraub, J.N.Wilson, C.H.Yu, A.V.Afanasjev, I.Ragnarsson

Decay Out of the Doubly Magic Superdeformed Band in the N = Z Nucleus 60Zn

NUCLEAR REACTIONS 40Ca(28Si, 2α), E=125 MeV; 40Ca(32S, 3α), E=134 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 60Zn deduced high-spin levels, J, π, superdeformed band quadrupole moment, linking transitions, B(E2). Gammasphere, Microball arrays.

doi: 10.1103/PhysRevLett.82.3400
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1998CA26      Phys.Rev. C58, 808 (1998)

J.A.Cameron, J.L.Rodriguez, J.Jonkman, G.Hackman, S.M.Mullins, C.E.Svensson, J.C.Waddington, L.Yao, T.E.Drake, M.Cromaz, J.H.DeGraaf, G.Zwartz, H.R.Andrews, G.Ball, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, D.Ward

Spectroscopy of Cross-Conjugate Nuclei 46Ti - 50Cr and 47V - 49Cr Near the f7/2-Shell Band Termination

NUCLEAR REACTIONS 28Si(28Si, 2p2α), (28Si, p2α), (28Si, 2pα), (28Si, n2pα), E=125 MeV; measured Eγ, Iγ, γγ-coin, DSA. 49,50Cr, 47V, 46Ti deduced high-spin levels, J, π, T1/2, B(M1), B(E2).

doi: 10.1103/PhysRevC.58.808
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1998DE29      Phys.Rev. C58, 164 (1998); Erratum Phys.Rev. C59, 1818 (1999)

J.DeGraaf, M.Cromaz, T.E.Drake, V.P.Janzen, D.C.Radford, D.Ward

Lifetime Measurements in 114,116Xe Isotopes

NUCLEAR REACTIONS 58Ni(58Ni, 2p), E=215 MeV; 58Ni(60Ni, 2p), E=223 MeV; measured Eγ, Iγ, Doppler-shifted spectra. 114,116Xe deduced transitions T1/2, B(E2), B(E1). Several models compared. Systematics for Xe isotopes discussed.

doi: 10.1103/PhysRevC.58.164
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