NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = E.Williams Found 92 matches. 2023JE01 Phys.Lett. B 837, 137641 (2023) D.Y.Jeung, D.J.Hinde, M.Dasgupta, C.Simenel, E.C.Simpson, K.J.Cook, H.M.Albers, J.Buete, I.P.Carter, Ch.E.Dullmann, J.Khuyagbaatar, B.Kindler, N.Lobanov, B.Lommel, C.Mokry, E.Prasad, J.Runke, C.Sengupta, J.F.Smith, P.Thorle-Pospiech, N.Trautmann, K.Vo-Phuoc, J.Walshe, E.Williams, A.Yakushev Sequential fission and the influence of 208Pb closed shells on the dynamics of superheavy element synthesis reactions NUCLEAR REACTIONS 238U, 244Pu, 248Cm, 249Cf(50Ti, F), E ∼ 230 MeV; measured fission fragments. 208Pb; deduced σ, binary quasifission mass spectra, sequential fission survival probabilities. The ANU Heavy Ion Accelerator Facility.
doi: 10.1016/j.physletb.2022.137641
2023TA12 Phys.Rev. C 107, 054601 (2023) T.Tanaka, D.J.Hinde, M.Dasgupta, E.Williams, K.Vo-Phuoc, C.Simenel, E.C.Simpson, D.Y.Jeung, I.P.Carter, K.J.Cook, N.R.Lobanov, D.H.Luong, C.Palshetkar, D.C.Rafferty, K.Ramachandran Competition between fusion and quasifission in the angular momentum dependent dynamics of heavy element synthesis reactions NUCLEAR REACTIONS 196Pt(54Cr, X), E(cm)=209.5, 215.7, 219.0, 223.8 MeV;198Pt(52Cr, X), E(cm)=213.4, 218.1, 222.9, 226.7 MeV; measured reaction products; deduced capture σ(E), fission and scattering σ(θ), dependence of capture σ on the angular momentum, fragments angular momentum distribution, correlated distributions of mass and angle (MADs) of the fragments, fragments total kinetic energies, ratio of symmetric component to total fission component (quasifission and fusion-fission). ANU CUBE detector system consisting of two large-area position-sensitive MWPCs at 14UD tandem electrostatic accelerator of the Australian National University Heavy Ion Accelerator Facility.
doi: 10.1103/PhysRevC.107.054601
2022BE17 Phys.Rev. C 105, 064614 (2022) A.C.Berriman, D.J.Hinde, D.Y.Jeung, M.Dasgupta, H.Haba, T.Tanaka, K.Banerjee, T.Banerjee, L.T.Bezzina, J.Buete, K.J.Cook, S.Parker-Steele, C.Sengupta, C.Simenel, E.C.Simpson, M.A.Stoyer, B.M.A.Swinton-Bland, E.Williams Energy dependence of p + 232Th fission mass distributions: Mass-asymmetric standard I and standard II modes, and multichance fission NUCLEAR REACTIONS 232Th(p, F), E=6.2-28MeV; measured reaction products, fission fragments; deduced fission fragment yields mass distribution. Studied the influence of the multichance fission on the shape of the mass distribution. Comparison to other experimental data and GEF calculations. CUBE spectrometer consisting of large MWPCs at 14UD tandem electrostatic accelerator of the Australian National University Heavy Ion Accelerator Facility. RADIOACTIVITY 248Cm(SF); measured fission fragments; deduced fission fragment yields mass distribution.
doi: 10.1103/PhysRevC.105.064614
2021BA41 Phys.Lett. B 820, 136601 (2021) K.Banerjee, D.J.Hinde, M.Dasgupta, J.Sadhukhan, E.C.Simpson, D.Y.Jeung, C.Simenel, B.M.A.Swinton-Bland, E.Williams, L.T.Bezzina, I.P.Carter, K.J.Cook, H.M.Albers, Ch.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, C.Mokry, E.Prasad, J.Runke, N.Schunck, C.Sengupta, J.F.Smith, P.Thorle-Pospiech, N.Trautmann, K.Vo-Phuoc, J.Walshe, A.Yakushev Sensitive search for near-symmetric and super-asymmetric fusion-fission of the superheavy element Flerovium (Z=114) NUCLEAR REACTIONS 208Pb, 244Pu(48Ca, X), 232Th(54Cr, X)Fl, E not given; analyzed available data; deduced masses, σ(θ). Comparison with microscopic calculations of Helmholtz free energy surfaces (FES).
doi: 10.1016/j.physletb.2021.136601
2021JE02 Phys.Rev. C 103, 034603 (2021) D.Y.Jeung, D.J.Hinde, E.Williams, M.Dasgupta, E.C.Simpson, R.du Rietz, D.H.Luong, R.Rafiei, M.Evers, I.P.Carter, K.Ramachandran, C.Palshetkar, D.C.Rafferty, C.Simenel, A.Wakhle Energy dissipation and suppression of capture cross sections in heavy ion reactions NUCLEAR REACTIONS 232Th(18O, X), (30Si, X), (34S, X), (40Ca, X), E(cm)=145-203 MeV; measured binary reaction products, including pairs of fission fragments, scattered beam particles and recoils in coincidence, and σ(θ) using the CUBE spectrometer at the 14UD tandem accelerator of Australian National University Heavy Ion Accelerator Facility; deduced distributions of the source velocity components of the fissioning nuclei, mass angle distributions (MADs), CC capture cross sections, full momentum transfer (FMT) fission cross sections, ratio of sequential fission to capture-fission, capture barriers. Comparison with coupled-channel (CC) calculations using CCFULL code; discussed sequential and total fission cross sections.
doi: 10.1103/PhysRevC.103.034603
2021TA31 Phys.Rev.Lett. 127, 222501 (2021) T.Tanaka, D.J.Hinde, M.Dasgupta, E.Williams, K.Vo-Phuoc, C.Simenel, E.C.Simpson, D.Y.Jeung, I.P.Carter, K.J.Cook, N.R.Lobanov, D.H.Luong, C.Palshetkar, D.C.Rafferty, K.Ramachandran Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions NUCLEAR REACTIONS 198Pt(52Cr, X)250No, E=219 MeV; 196Pt(54Cr, X)250No, E=222.9 MeV; measured reaction products; deduced correlated distributions of mass and angle is called a mass-angle distribution (MAD), scattering σ. TDHF calculations. The Heavy Ion Accelerator Facility of the Australian National University.
doi: 10.1103/PhysRevLett.127.222501
2020PR14 Phys.Lett. B 811, 135941 (2020) E.Prasad, D.J.Hinde, M.Dasgupta, D.Y.Jeung, A.C.Berriman, B.M.A.Swinton-Bland, C.Simenel, E.C.Simpson, R.Bernard, E.Williams, K.J.Cook, D.C.Rafferty, C.Sengupta, J.F.Smith, K.Vo-Phuoc, J.Walshe Systematics of the mass-asymmetric fission of excited nuclei from 176Os to 206Pb NUCLEAR REACTIONS 176Os, 176,180Pt, 192,198Hg, 206Pb(p, F), (12C, F), (32S, F), (40Ca, F), (48Ca, F), E not given; analyzed available data; deduced mass-asymmetric fission systematics, total kinetic energy distributions, fission mass-ratio distributions. Comparison with GEF calculations.
doi: 10.1016/j.physletb.2020.135941
2019BA26 Phys.Rev.Lett. 122, 232503 (2019) K.Banerjee, D.J.Hinde, M.Dasgupta, E.C.Simpson, D.Y.Jeung, C.Simenel, B.M.A.Swinton-Bland, E.Williams, I.P.Carter, K.J.Cook, H.M.David, C.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, E.Prasad, C.Sengupta, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Yakushev Mechanisms Suppressing Superheavy Element Yields in Cold Fusion Reactions NUCLEAR REACTIONS 208Pb(50Ti, X), (48Ca, X), (54Cr, X), E not given; analyzed available data; deduced projectile impact on drastic fall in the symmetric fission yield, which is reflected in the measured mass-angle distribution by the presence of competing fast nonequilibrium deep inelastic and quasifission processes.
doi: 10.1103/PhysRevLett.122.232503
2019HA17 Phys.Rev. C 99, 054621 (2019) K.Hammerton, D.J.Morrissey, Z.Kohley, D.J.Hinde, M.Dasgupta, A.Wakhle, E.Williams, I.P.Carter, K.J.Cook, J.Greene, D.Y.Jeung, D.H.Luong, S.D.McNeil, C.Palshetkar, D.C.Rafferty, C.Simenel, K.Stiefel Entrance channel effects on the quasifission reaction channel in Cr + W systems NUCLEAR REACTIONS 180W(50Cr, X)230Cf*, E(cm)=210.0 MeV; 180W(52Cr, X)232Cf*, E(cm)=214.1; 180W(54Cr, X)234Cf*, E(cm)=215.4 MeV; 182W(54Cr, X)236Cf*, E(cm)=213.8 MeV; 184W(52Cr, X)236Cf*, E(cm)=209.7 MeV; 184W(54Cr, X)238Cf*, E(cm)=211.8 MeV; 186W(50Cr, X)236Cf*, E(cm)=201.3 MeV; 186W(54Cr, X)240Cf*, E(cm)=209.5 MeV; measured fission fragments, mass-angle distributions, mass distribution of fragments using the CUBE detector for charged particle detection at the Heavy Ion Accelerator Facility of the Australian National University; deduced curvature parameter, entrance channel effects, and impact of target deformation effects on the quasifission process.
doi: 10.1103/PhysRevC.99.054621
2018CO01 Phys.Rev. C 97, 021601 (2018) K.J.Cook, I.P.Carter, E.C.Simpson, M.Dasgupta, D.J.Hinde, L.T.Bezzina, S.Kalkal, C.Sengupta, C.Simenel, B.M.A.Swinton-Bland, K.Vo-Phuoc, E.Williams Interplay of charge clustering and weak binding in reactions of 8Li NUCLEAR REACTIONS 209Bi(8Li, X), E=38.2-40.9 MeV, [secondary 8Li from primary reaction 9Be(7Li, 8Li)8Be, E=45 MeV using SOLEROO separator at Australian National University]; measured proton, deuteron, triton, α, 7,8Li spectra using two ΔE-E telescopes, energy and angle, αα-, αt-, αd-, and αp-coin; deduced total α production σ, energy averages σ(θ) for singles and coincidence events, reaction Q values, relative energy distribution, 8Li breakup into charged clusters; calculated time of breakup for αt-pairs using classical dynamical model.
doi: 10.1103/PhysRevC.97.021601
2018HI02 Phys.Rev. C 97, 024616 (2018) D.J.Hinde, D.Y.Jeung, E.Prasad, A.Wakhle, M.Dasgupta, M.Evers, D.H.Luong, R.du Rietz, C.Simenel, E.C.Simpson, E.Williams Sub-barrier quasifission in heavy element formation reactions with deformed actinide target nuclei NUCLEAR REACTIONS 232Th(34S, X)266Sg*, E(cm)=143.6, 145.7, 147.9, 150.5, 158.4, 166.7 MeV; 238U(28Si, X)266Sg*, E(cm)=126.9, 129.5, 137.4, 145.7, 151.0, 155.5 MeV; 232Th(30Si, X)262Rf*, E(cm)=128.2, 131.8, 135.9, 139.5, 143.1, 146.7 MeV; 238U(24Mg, X)262Rf*, E(cm)=110.0, 113.2, 116.4, 120.0, 126.3, 129.5 MeV; measured reaction products, fission and quasifission mass and angle distributions (MADs); 232Th(19F, X), E=76.4, 78.3, 80.1, 82.0, 83.8, 85.7, 87.6, 89.4, 91.2, 93.1, 95.0, 96.8, 98.6, 100.5, 102.4, 107.0 MeV; 232Th(32S, X), (19F, X), (16O, X), (12C, X), (11B, X), E/VB=0.8-1.3; 238U(16O, X), (12C, X), (11B, X), E/VB=0.8-1.3; measured angular distribution of mass-symmetric fission events, σ(E) for full momentum transfer (FMT) fission for 19F+232Th reaction. Experiments used CUBE fission spectrometer at the Australian National University 14UD tandem accelerator facility to determine the probabilities of fast and slow quasifission in reactions with prolate deformed actinide nuclei. Relevance to formation of superheavy elements (SHEs) by fusion of two massive nuclei.
doi: 10.1103/PhysRevC.97.024616
2018KH05 Phys.Rev. C 97, 064618 (2018) J.Khuyagbaatar, H.M.David, D.J.Hinde, I.P.Carter, K.J.Cook, M.Dasgupta, Ch.E.Dullmann, D.Y.Jeung, B.Kindler, B.Lommel, D.H.Luong, E.Prasad, D.C.Rafferty, C.Sengupta, C.Simenel, E.C.Simpson, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Wakhle, E.Williams, A.Yakushev Nuclear structure dependence of fusion hindrance in heavy element synthesis NUCLEAR REACTIONS 204,208Pb(48Ti, X), E=240.0, 245.0, 252.2, 259.0, 270.0, 280.0 MeV; 206,208Pb(50Ti, X), E=236.0, 240.0, 252.0, 258.0, 264.0, 270.0, 280.2 MeV; measured reaction products, mass ratio and angular distributions (MAD) of fragments, double differential σ(θ, MR), and widths using CUBE detector array at the Heavy Ion Accelerator Facility of Australian National University. 206Pb(36S, X), (34S, X), (48Ti, X), (50Ti, X), E*=25-60 MeV; calculated mean-squared angular momenta, widths and MR distributions, and compared with experimental data. Discussed impact of nuclear structure on fusion-evaporation reactions.
doi: 10.1103/PhysRevC.97.064618
2018MO13 Phys.Rev. C 97, 054603 (2018) G.Mohanto, D.J.Hinde, K.Banerjee, M.Dasgupta, D.Y.Jeung, C.Simenel, E.C.Simpson, A.Wakhle, E.Williams, I.P.Carter, K.J.Cook, D.H.Luong, C.S.Palshetkar, D.C.Rafferty Interplay of spherical closed shells and N/Z asymmetry in quasifission dynamics NUCLEAR REACTIONS 208Pb(50Cr, X)258Sg*,208Pb(52Cr, X)260Sg*,208Pb(54Cr, X)262Sg*,206Pb(52Cr, X)258Sg*,204Pb(54Cr, X), 258Sg*, E=257-292.7 MeV; measured fission fragments, two fission fragments in coincidence mode, and mass angle distributions (MADs) using CUBE spectrometer at the Australian National University 14 UD tandem accelerator facility; deduced mass-ratio distributions of fission fragments, symmetric-peaked fission to total fission ratio, symmetric fission as a function of entrance channel magicity, effect of entrance-channel spherical closed shells and N/Z asymmetry on quasifission dynamics. Relevance to synthesis of superheavy-elements.
doi: 10.1103/PhysRevC.97.054603
2018PA48 Phys.Rev. C 98, 044603 (2018) C.S.Palshetkar, D.J.Hinde, M.Dasgupta, E.Williams, K.Ramachandran, I.P.Carter, K.J.Cook, D.Y.Jeung, D.H.Luong, S.D.McNeil, D.C.Rafferty, A.Wakhle Fission cross sections as a probe of fusion dynamics at high angular momentum NUCLEAR REACTIONS 148Sm(16O, X)164Yb*, E(cm)=73.92, 82.04, 90.21, 99.24 MeV; 136Ba(28Si, X)164Yb*, E(cm)=108.22, 116.38, 119.07, 125.42 MeV; 124Sn(40Ca, X)164Yb*, E(cm)=126.00, 130.11, 139.19, 144.07 MeV; measured angular distributions and mass-angle distributions (MADs) of fission fragments using CUBE spectrometer at the 14UD tandem accelerator at the Australian National University; deduced fission σ(E) of excited compound nuclei with coupled channel analysis for angular momentum distributions. Comparison with previous experimental fusion and fission σ(E), and with statistical model calculations. Discussed fission cross-section as a sensitive probe of fusion dynamics at high angular momentum.
doi: 10.1103/PhysRevC.98.044603
2018WI01 Phys.Rev.Lett. 120, 022501 (2018) E.Williams, K.Sekizawa, D.J.Hinde, C.Simenel, M.Dasgupta, I.P.Carter, K.J.Cook, D.Y.Jeung, S.D.McNeil, C.S.Palshetkar, D.C.Rafferty, K.Ramachandran, A.Wakhle Exploring Zeptosecond Quantum Equilibration Dynamics: From Deep-Inelastic to Fusion-Fission Outcomes in 58Ni + 60Ni Reactions NUCLEAR REACTIONS 58,60Ni(58Ni, X), E=158.4 MeV; measured reaction products; deduced σ, σ(θ, E). Comparison with theoretical predictions using time dependent Hartree-Fock and time dependent random phase approximation approaches, which, respectively, incorporate one-body energy dissipation and fluctuations.
doi: 10.1103/PhysRevLett.120.022501
2017MO40 Phys.Rev.Lett. 119, 222502 (2017) M.Morjean, D.J.Hinde, C.Simenel, D.Y.Jeung, M.Airiau, K.J.Cook, M.Dasgupta, A.Drouart, D.Jacquet, S.Kalkal, C.S.Palshetkar, E.Prasad, D.Rafferty, E.C.Simpson, L.Tassan-Got, K.Vo-Phuoc, E.Williams Evidence for the Role of Proton Shell Closure in Quasifission Reactions from X-Ray Fluorescence of Mass-Identified Fragments NUCLEAR REACTIONS 238U(48Ti, X), E=276 MeV; measured reaction products, characteristic fluorescence x rays; deduced photon spectrum, fragment yields.
doi: 10.1103/PhysRevLett.119.222502
2017PR07 Phys.Rev. C 96, 034608 (2017) E.Prasad, D.J.Hinde, E.Williams, M.Dasgupta, I.P.Carter, K.J.Cook, D.Y.Jeung, D.H.Luong, C.S.Palshetkar, D.C.Rafferty, K.Ramachandran, C.Simenel, A.Wakhle Fusion and quasifission studies for the 40Ca + 186W, 192Os reactions NUCLEAR REACTIONS 186W(40Ca, X)226Pu*, E=199.3, 204.3, 214.3, 225.4 MeV; 192Os(40Ca, X)232Cm*, E=199.3, 204.3, 214.3, 225.3, 239.8, 262.6 MeV; measured mass-angle distributions (MADs) of the fragments, differential σ(θ, E), total fusion σ(E) using the CUBE spectrometer at the Heavy Ion Accelerator Facility of the Australian National University; deduced fragment mass ratio σ(MR), potential parameters from Coupled-channels calculations, Coulomb barriers as a function of orientation angles, parameters of the sticking-time distribution and average sticking time for quasifission components. Comparison with theoretical calculations using classical phenomenological approach by GEneral description of Fission observables (GEF) model. Relevance to quasifission and fusion-fission processes in the production of superheavy elements (SHE).
doi: 10.1103/PhysRevC.96.034608
2016KA16 Phys.Rev. C 93, 044605 (2016) S.Kalkal, E.C.Simpson, D.H.Luong, K.J.Cook, M.Dasgupta, D.J.Hinde, I.P.Carter, D.Y.Jeung, G.Mohanto, C.S.Palshetkar, E.Prasad, D.C.Rafferty, C.Simenel, K.Vo-Phuoc, E.Williams, L.R.Gasques, P.R.S.Gomes, R.Linares Asymptotic and near-target direct breakup of 6Li and 7Li NUCLEAR REACTIONS 58Ni(6Li, X), (7Li, X), E=13.07 MeV; 64Zn(6Li, X), E=13.55 MeV; 64Zn(7Li, X), E=13.60 MeV; measured energy, position, and time of flight (TOF) of the charged breakup fragments in coincidence mode using BALiN array, spectra of α-d and α-t breakup pairs at ANU Heavy Ion accelerator facility; deduced prompt and asymptotic breakups, probability of populating the excitation energies above the breakup threshold for 3+ resonant states of 6Li, excitation energy dependent mean-lives, β versus θ12 distributions, asymptotic, near-target, and total direct breakup differential σ(θ). Simulations using a modified version of Monte Carlo classical trajectory model code PLATYPUS.
doi: 10.1103/PhysRevC.93.044605
2016LI42 Phys.Rev. C 94, 024616 (2016) J.F.Liang, J.M.Allmond, C.J.Gross, P.E.Mueller, D.Shapira, R.L.Varner, M.Dasgupta, D.J.Hinde, C.Simenel, E.Williams, K.Vo-Phuoc, M.L.Brown, I.P.Carter, M.Evers, D.H.Luong, T.Ebadi, A.Wakhle Examining the role of transfer coupling in sub-barrier fusion of 46, 50Ti + 124Sn NUCLEAR REACTIONS 46,50Ti(124Sn, X), E(cm)=120-154 MeV; 124Sn(46Ti, X), (50Ti, X), E(cm)=116-140 MeV; measured evaporation residues (ERs), fusion σ(E) for the 124Sn beam at HRIBF-ORNL facility, and 46,50Ti beams at ANU 14UD tandem accelerator facility. Comparison of experimental reduced σ(E) values and reduced barrier distributions for 40,48Ca+96Zr, 40,48Ca+124Sn, 40,48Ca+132Sn, 46,50Ti+124Sn, 58,64Ni+124Sn 58,64Ni+132Sn and 64Ni+118Sn reactions. Comparison with coupled-channel calculations using CCFULL code.
doi: 10.1103/PhysRevC.94.024616
2016PR03 Phys.Rev. C 93, 024607 (2016) E.Prasad, A.Wakhle, D.J.Hinde, E.Williams, M.Dasgupta, M.Evers, D.H.Luong, G.Mohanto, C.Simenel, K.Vo-Phuoc Exploring quasifission characteristics for 34S + 232Th forming 266Sg NUCLEAR REACTIONS 232Th(32S, X)266Sg*, E=164.7, 167.2, 169.7, 172.7, 181.6, 191.2 MeV; measured reaction products, fission events, unsymmetrized distribution of fragments, average mass ratio of heavy asymmetric fragments to symmetric fragments as function of E/VB, angular momentum-distributions, fragment-fragment mass angle distribution (MAD) plots, mass drift as function of time. Monte Carlo simulations for mass angle distribution (MAD) plots.
doi: 10.1103/PhysRevC.93.024607
2016RA26 Phys.Rev. C 94, 024607 (2016) D.C.Rafferty, M.Dasgupta, D.J.Hinde, C.Simenel, E.C.Simpson, E.Williams, I.P.Carter, K.J.Cook, D.H.Luong, S.D.McNeil, K.Ramachandran, K.Vo-Phuoc, A.Wakhle Multinucleon transfer in 16, 18O, 19F + 208Pb reactions at energies near the fusion barrier NUCLEAR REACTIONS 208Pb(16O, X)12C/13C/14C/13N/14N/15N/14O/15O/17O/18O/17F, E(cm)=73.0, 72.5, 70.9, 69.3; 208Pb(18O, X)11B/12C/13C/14C/15C/16C/15N/16N/17N/16O/17O/19O/19F, E(cm)=73.6, 71.6, 71.1, 70.3, 69.6, 68.0 MeV; 208Pb(19F, X)12C/13C/14C/15N/16N/17N/16O/17O/18O/18F/20F/21F/20Ne/21Ne/22Ne, E(cm)=83.3, 81.3, 80.6, 78.9, 77.2, 75.5, 74.1 MeV; measured projectile-like fragments (PLFs) produced in +1p, +2n, +1n, -1n, -2n, -1p, -1p1n, -1p2n, -2p, -2p1n, -2p2n, -2p3n, -2p4n, -3p4n, +1p2n, +1p1n, +2n, -3p2n and -3p3n transfer channels, ΔE-E spectra, probabilities for various transfer processes, ratios of quasielastic and Rutherford scattering cross sections, distribution of excitation energies at ANU Heavy Ion accelerator facility.
doi: 10.1103/PhysRevC.94.024607
2016SI04 Phys.Rev. C 93, 024605 (2016) E.C.Simpson, K.J.Cook, D.H.Luong, S.Kalkal, I.P.Carter, M.Dasgupta, D.J.Hinde, E.Williams Disintegration locations in 7Li → 8Be transfer-triggered breakup at near-barrier energies NUCLEAR REACTIONS 58Ni(7Li, X), E=13.1 MeV; measured spectra of charged particles, relative energy distributions for the two α particles from 7Li proton pickup, αα-coin and αα(θ) from breakup process using the Breakup Array for Light Nuclei (BALiN) at 14UD tandem accelerator of the Australian National University; deduced large angular separations of the α fragments. Data consistent with disintegration of 0+ ground state and 2+ resonance of 8Be. Transfer-induced breakup reactions. Comparison with classical dynamical model simulations using a modified version of PLATYPUS code.
doi: 10.1103/PhysRevC.93.024605
2016WE01 Phys.Rev. C 93, 034323 (2016) V.Werner, N.Cooper, J.-M.Regis, M.Rudigier, E.Williams, J.Jolie, R.B.Cakirli, R.F.Casten, T.Ahn, V.Anagnostatou, Z.Berant, M.Bonett-Matiz, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, M.K.Smith Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei RADIOACTIVITY 168Ta(EC)[from 159Tb(16O, 7n), E=130 MeV]; 174Re(EC)[from 169Tm(12C, 7n), E=115 MeV]; 152Eu(EC); measured Eγ, γγ-coin, γγ(t) using fast timing system at WNSL-Yale University. 168Hf, 174W; deduced levels, half-lives and B(E2) of first 2+ states. Comparison with previous experimental results. Systematics and analysis in terms of differentials of B(E2) values of the first 2+ states for 162,164,166,168,170,172,174,176,178Hf, 164,166,168,170,172,174,176,178,180W.
doi: 10.1103/PhysRevC.93.034323
2015HA12 Phys.Rev. C 91, 041602 (2015) K.Hammerton, Z.Kohley, D.J.Hinde, M.Dasgupta, A.Wakhle, E.Williams, V.E.Oberacker, A.S.Umar, I.P.Carter, K.J.Cook, J.Greene, D.Y.Jeung, D.H.Luong, S.D.McNeil, C.S.Palshetkar, D.C.Rafferty, C.Simenel, K.Stiefel Reduced quasifission competition in fusion reactions forming neutron-rich heavy elements NUCLEAR REACTIONS 180W(50Cr, X), E(cm)=222.6 MeV; 180W(52Cr, X), E(cm)=221.2 MeV; 180W(54Cr, X), E(cm)=219.8 MeV; 186W(50Cr, X), E(cm)=221.0 MeV; 184W(52Cr, X), E(cm)=220.1 MeV; 182W(54Cr, X), E(cm)=221.0 MeV; 184W(54Cr, X), E(cm)=218.9 MeV; 186W(54Cr, X), E(cm)=218.3 MeV; measured spectra of neutron-rich fragments from fusion-fission and quasifission in coincidence mode, mass-angle distributions (MADs) using the ANU CUBE detector system at ANU's Heavy-Ion Accelerator Facility; deduced strong dependence on the N/Z of the compound system in quasifission system. Comparison with microscopic time-dependent Hartree-Fock calculations of the quasifission process.
doi: 10.1103/PhysRevC.91.041602
2015KH03 Phys.Rev. C 91, 054608 (2015) J.Khuyagbaatar, D.J.Hinde, I.P.Carter, M.Dasgupta, Ch.E.Dullmann, M.Evers, D.H.Luong, R.du Rietz, A.Wakhle, E.Williams, A.Yakushev Experimental study of the quasifission, fusion-fission, and de-excitation of Cf compound nuclei NUCLEAR REACTIONS 206Pb(36S, X)242Cf*, 208Pb(34S, X)242Cf*, 198Pt(44Ca, X)242Cf*, 208Pb(36S, X)244Cf*, 235U(12C, X)247Cf*, at E*=28-52 MeV; measured fission fragment spectra, (fragment)(fragment)-coin, mass and angle distributions of fission fragments at Heavy Ion Accelerator Facility of the Australian National University; deduced mean squared angular momenta, (σRMS/σgaus), mass distribution of fission fragments of 244Cf* and 242Cf* following electron capture decay of 244Es and 242Es; deduced fractions of the mass asymmetric fission components, survival probabilities, shell effects in slow quasifission mass distributions. Coupled-channel calculations using CCFULL computer code. Comparison with calculations using general fission model computer code GEF.
doi: 10.1103/PhysRevC.91.054608
2015PR07 Phys.Rev. C 91, 064605 (2015) E.Prasad, D.J.Hinde, K.Ramachandran, E.Williams, M.Dasgupta, I.P.Carter, K.J.Cook, D.Y.Jeung, D.H.Luong, S.McNeil, C.S.Palshetkar, D.C.Rafferty, C.Simenel, A.Wakhle, J.Khuyagbaatar, Ch.E.Dullmann, B.Lommel, B.Kindler Observation of mass-asymmetric fission of mercury nuclei in heavy ion fusion NUCLEAR REACTIONS 142Nd(40Ca, X)182Hg*, E=167.7, 194.9, 199.9, 210.0, 221.1 MeV; 182W(13C, X)195Hg*, E=60.0, 63.0, 66.0 MeV; measured fission fragments mass rations and mass-angle distributions using the CUBE spectrometer at 14UD Pelletron facility of ANU-Canberra; deduced mass-asymmetric fission of 182Hg compound nucleus at E*=33.6 MeV, and mass-symmetric fission of 195Hg compound nucleus at all energies.Kinematic reconstruction method. Comparison with results from mass-asymmetric fission of 180Hg in beta-delayed fission process, and with theoretical predictions.
doi: 10.1103/PhysRevC.91.064605
2014WA41 Phys.Rev.Lett. 113, 182502 (2014) A.Wakhle, C.Simenel, D.J.Hinde, M.Dasgupta, M.Evers, D.H.Luong, R.du Rietz, E.Williams Interplay between Quantum Shells and Orientation in Quasifission NUCLEAR REACTIONS 238U(40Ca, X), E=225.4 MeV; measured reaction products, fission fragments; deduced fragment yields, mass-angle distribution σ(θ). Comparison with microscopic quantum calculations.
doi: 10.1103/PhysRevLett.113.182502
2013DU17 Phys.Rev. C 88, 054618 (2013) R.du Rietz, E.Williams, D.J.Hinde, M.Dasgupta, M.Evers, C.J.Lin, D.H.Luong, C.Simenel, A.Wakhle Mapping quasifission characteristics and timescales in heavy element formation reactions NUCLEAR REACTIONS 186W(16O, X)202Pb*, E(cm)=102.1 MeV; 192Os(16O, X)208Po*, E(cm)=102.3 MeV; 178Hf(24Mg, X)202Po*, E(cm)=102.1 MeV; 168Er(34S, X)202Po*, E(cm)=128.4 MeV; 144Sm(48Ti, X)192Po*, E(cm)=164.2 MeV; 196Pt(16O, X)212Rn*, E(cm)=102.0 MeV; 208Pb(12C, X)220Ra*, E(cm)=59.9 MeV; 200Hg(16O, X)216Ra*, E(cm)=102.8 MeV; 178Hf(32S, X)210Ra*, E(cm)=138.3 MeV; 162Dy(48Ti, X)210Ra*, E(cm)=168.9 MeV; 208Pb(16O, X)224Th*, E(cm)=103.0 MeV; 186W(34S, X)220Th*, E(cm)=144.5 MeV; 170Er(48Ti, X)218Th*, E(cm)=174.8 MeV; 154Sm(64Ni, X)218Th*, E(cm)=200.6 MeV; 174Yb(48Ti, X)222U*, E(cm)=178.1 MeV; 194Pt(32S, X)226Pu*, E(cm)=144.4 MeV; 178Hf(48Ti, X)226Pu*, E(cm)=180.8 MeV; 208Pb(30Si, X)238Cm*, E(cm)=134.7 MeV; 202Hg(32S, X)234Cm*, E(cm)=149.6 MeV; 186W(48Ti, X)234Cm*, E(cm)=186.3 MeV; 170Er(64Ni, X)234Cm*, E(cm)=216.2 MeV; 238U(12C, X)250Cf*, E(cm)=66.3 MeV; 232Th(18O, X)250Cf*, E(cm)=84.9 MeV; 208Pb(32S, X)240Cf*, E(cm)=149.9 MeV; 198Pt(40Ca, X)238Cf*, E(cm)=188.7 MeV; 192Os(48Ti, X)240Cf*, E(cm)=195.0 MeV; 238U(16O, X)254Fm*, E(cm)=103.5 MeV; 196Pt(48Ti, X)244Fm*, E(cm)=193.3 MeV; 208Pb(40Ca, X)248No*, E(cm)=190.2 MeV; 200Hg(48Ti, X)248No*, E(cm)=197.5 MeV; 184W(64Ni, X)248No*, E(cm)=252.3 MeV; 238U(24Mg, X)262Rf*, E(cm)=129.3 MeV; 232Th(30Si, X)262Rf*, E(cm)=144.0 MeV; 208Pb(48Ti, X)256Rf*, E(cm)=210.6 MeV; 192Os(64Ni, X)256Rf*, E(cm)=239.2 MeV; 238U(28Si, X)266Sg*, E(cm)=150.7 MeV; 232Th(34S, X)266Sg*, E(cm)=166.7 MeV; 198Pt(64Ni, X)262Sg*, E(cm)=241.7 MeV; 232Th(40Ca, X)272Ds*, E(cm)=211.5 MeV; 208Pb(64Ni, X)272Ds*, E(cm)=259.5 MeV; 238U(40Ca, X)278Cn*, E(cm)=210.7 MeV; 238U(48Ti, X)286Fl*, E(cm)=214.6 MeV; measured reaction products using CUBE spectrometer of multiwire proportional counters (MWPCs), mass-angle distributions (MAD) at ANU's Heavy Ion accelerator facility; deduced systematic dependence of quasifission characteristics as a function of identity of colliding nuclei, entrance channel and compound nucleus fissilities, effects of nuclear structure at lower beam energies. Relevance to formation of superheavy elements.
doi: 10.1103/PhysRevC.88.054618
2013GU23 Phys.Rev. C 88, 014301 (2013) G.Gurdal, E.A.Stefanova, P.Boutachkov, D.A.Torres, G.J.Kumbartzki, N.Benczer-Koller, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, C.Bernards, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams Measurements of g(41+, 22+)in 70, 72, 74, 76Ge: Systematics of low-lying structures in 30 ≤ Z ≤ 40 and 30 ≤ N ≤ 50 nuclei NUCLEAR REACTIONS C, Mg(70Ge, 70Ge'), (72Ge, 72Ge'), (74Ge, 74Ge'), (76Ge, 76Ge'), E=165-225 MeV; measured Eγ, precession angles, angular correlations; deduced g factors. Natural C or Mg targets with mid layer of Gd or Fe and backing of Ta and Cu. NUCLEAR MOMENTS 70,72,74,76Ge; measured g factors of first and second 2+ and first 4+ states using transient field (TF) technique following Coulomb excitation in inverse kinematics at WNSL-Yale facility. Systematics of g factors for neighboring nuclides of even-even N=32-50, Z=30-38. Comparison with large-scale shell-model, collective models, and IBA-II, and with previous experimental studies. No evidence for shell closure for neutrons at N=38 or N=40.
doi: 10.1103/PhysRevC.88.014301
2013MC07 Phys.Rev. C 87, 057306 (2013) E.A.McCutchan, R.F.Casten, V.Werner, R.J.Casperson, A.Heinz, J.Qian, B.Shoraka, J.R.Terry, E.Williams, R.Winkler β decay spectroscopy of light Nd isotopes RADIOACTIVITY 132,134Pm(β+), (EC)[from 92Mo(46Ti, 3n3p), (46Ti, n3p), E=230 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ) at Yale facility. 132,134Nd; deduced levels, J, π, branching ratio, multipolarity, mixing ratio. Comparison with predictions of X(5) model. Systematics of low-lying levels in 130Ce, 132Nd, and 150Nd.
doi: 10.1103/PhysRevC.87.057306
2013SI33 Phys.Rev. C 88, 064604 (2013) C.Simenel, M.Dasgupta, D.J.Hinde, E.Williams Microscopic approach to coupled-channels effects on fusion NUCLEAR REACTIONS 40Ca(40Ca, X), E(cm)=49-61 MeV; 56Ni(56Ni, X), E(cm)=97-110 MeV; calculated differential σ(θ, E), σ(E)(fusion), strength functions for giant resonances (GMR and GQR), energies and deformations of first 2+, first 3- states and GQR, quadrupole phonon couplings, isodensity contours; deduced effect of collective vibrations on fusion cross sections, lowering of barrier heights. Coupled-channel (CC) calculations using Hartree-Fock (HF) theory, and frozen HF method, together with TDHF computation of properties of low-lying vibrational states and giant resonances.
doi: 10.1103/PhysRevC.88.064604
2013SM02 Phys.Rev. C 87, 044317 (2013) M.K.Smith, V.Werner, J.R.Terry, N.Pietralla, P.Petkov, Z.Berant, R.J.Casperson, A.Heinz, G.Henning, R.Luttke, J.Qian, B.Shoraka, G.Rainovski, E.Williams, R.Winkler Centrifugal stretching from lifetime measurements in the 170Hf ground state band NUCLEAR REACTIONS 124Sn(50Ti, 4n), E=195 MeV; measured Eγ, Iγ, γγ-coin, level-half-lives of ground-state band members by RDDS and DDCM method using the YRAST-Ball array and the New-Yale Plunger device at WNSL facility. 170Hf; deduced levels, B(E2), transition quadrupole moments Qt, centrifugal stretching. Comparison with the rigid rotor, and confined β-soft rotor model.
doi: 10.1103/PhysRevC.87.044317
2013WI05 Phys.Rev. C 88, 034611 (2013) E.Williams, D.J.Hinde, M.Dasgupta, R.du Rietz, I.P.Carter, M.Evers, D.H.Luong, S.D.McNeil, D.C.Rafferty, K.Ramachandran, A.Wakhle Evolution of signatures of quasifission in reactions forming curium NUCLEAR REACTIONS 232Th(12C, X)244Cm*, E=61-94 MeV; 208Pb(28Si, X)236Cm*, E=138-188 MeV; 206Pb(30Si, X)236Cm*, E=135-198 MeV; 208Pb(30Si, X)238Cm*, E=154-167 MeV; 202Hg(32S, X)234Cm*, E=157-191 MeV; 186W(48Ti, X)234Cm*, E=219-235 MeV; 170Er(64Ni, X)234Cm*, E=280-318 MeV; measured particle spectra, fusion σ(E), angular anisotropies using CUBE detector at Heavy-ion ANU facility; deduced mass-ratio spectra and widths, mass-angle distributions (MAD) as signatures of two-body quasifission. Comparison with Transition-state model and coupled-channel calculations.
doi: 10.1103/PhysRevC.88.034611
2012AN17 Appl.Radiat.Isot. 70, 1321 (2012) V.Anagnostatou, P.H.Regan, V.Werner, F.R.Xu, G.X.Dong, M.R.Bunce, D.McCarthy, L.Bettermann, C.Boniwell, R.Casperson, R.Chevrier, N.Cooper, A.Heinz, P.Paurstein, D.Radeck, M.K.Smith, E.Williams Electromagnetic transition rates in 100, 101Pd using the Recoil Doppler Shift Technique NUCLEAR REACTIONS 24Mg(80Se, xn)100Pd/101Pd, E=268 MeV; measured reaction products, Eγ, Iγ; deduced first excited state lifetime, B(E2). RDDS method, comparison with total Routhian surface calculations.
doi: 10.1016/j.apradiso.2011.12.005
2012KU14 Phys.Rev. C 85, 044322 (2012) G.J.Kumbartzki, K.-H.Speidel, N.Benczer-Koller, D.A.Torres, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, P.Maier-Komor, T.Ahn, V.Anagnostatou, Ch.Bernards, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams Structure of the Sr-Zr isotopes near and at the magic N=50 shell from g-factor and lifetime measurements in 8840Zr and 84, 86, 3888Sr NUCLEAR REACTIONS 12C(84Sr, X)84Sr/86Sr/88Sr/88Zr, E=243-285 MeV; measured Eγ, Iγ, (12C)γ-, αγ-, γγ-coin, level half-lives by DSA, g factors. 84,86,88Sr, 88Zr; deduced levels, J, π, B(E2). Systematics of B(E2) values for first 2+ states in even-even N=40-62 Sr and Zr nuclei. NUCLEAR MOMENTS 88Zr, 84,86,88Sr; measured g factors of 2+ and first 4+ states using transient field technique in inverse kinematics. Comparison with previous studies and with shell model calculations. Systematics of g factors of first 2+ states in even-even N=42-62 Sr and Zr nuclei.
doi: 10.1103/PhysRevC.85.044322
2012LU03 Phys.Rev. C 85, 017301 (2012) R.Luttke, E.A.McCutchan, V.Werner, K.Aleksandrova, S.Atwater, H.Ai, R.J.Casperson, R.F.Casten, A.Heinz, A.F.Mertz, J.Qian, B.Shoraka, J.R.Terry, E.Williams, R.Winkler Collectivity in 66Ge and 68Ge via lifetime measurements NUCLEAR REACTIONS 58Ni(10B, pn), E=28 MeV; 58Ni(12C, 2p), E=38 MeV; measured Eγ, half-lives of first 2+ states by recoil-distance Doppler shift using a plunger device and SPEEDY array at WNSL, Yale. 66,68Ge; deduced level, B(E2). Comparison with large-scale shell-model calculations.
doi: 10.1103/PhysRevC.85.017301
2012RA03 Phys.Rev. C 85, 014301 (2012) D.Radeck, V.Werner, G.Ilie, N.Cooper, V.Anagnostatou, T.Ahn, L.Bettermann, R.J.Casperson, R.Chevrier, A.Heinz, J.Jolie, D.McCarthy, M.K.Smith, E.Williams Simultaneous deorientation and lifetime measurement in 98Ru using the recoil distance Doppler shift method in inverse Coulomb excitation NUCLEAR REACTIONS 24Mg(98Ru, 98Ru'), E=300 MeV; measured Eγ, Iγ, particle spectra, angular distribution and deorientation, particle-γ coin, half-lives of first 2+ and 4+ states by Recoil distance Doppler shift (RDDS) method using New Yale Plunger Device and YRAST ball array. Coulomb excitation in inverse kinematics. 98Ru; deduced levels, B(E2) values. Comparison with theoretical calculations and previous works, systematics of B(E2) values for first 2+ and 4+ states in A=96-122 (even) Ru, and N=54, Z=40-48 (even) nuclei.
doi: 10.1103/PhysRevC.85.014301
2012WE13 J.Phys.:Conf.Ser. 366, 012048 (2012) V.Werner, G.Ilie, D.Radeck, T.Ahn, C.W.Beausang, L.Bettermann, R.J.Casperson, R.Chevrier, N.Cooper, T.C.Bonniwell, A.Heinz, E.Holland, D.McCarthy, B.Pauerstein, M.K.Smith, J.R.Terry, E.Williams Lifetime and magnetic moment measurements NUCLEAR REACTIONS 24Mg(104Pd, 104Pd'), (106Pd, 106Pd'), (108Pd, 108Pd'), E=324, 330, 336 MeV; measured Coulomb excitation Eγ, Iγ using g-Plunger technique; deduced g-factor, T1/2. Compared with NNDC data.
doi: 10.1088/1742-6596/366/1/012048
2012WO03 Phys.Rev. C 85, 037304 (2012);Erratum Phys.Rev. C 86, 019902 (2012) A.Wolf, Z.Berant, V.Werner, A.Heinz, R.F.Casten, R.J.Casperson, D.S.Brenner, R.Chevrier, D.McCarthy, G.Ilie, E.Williams, J.Qian, J.R.Terry, T.Ahn, R.Winkler g factor of the 21+ state of 168Hf NUCLEAR MOMENTS 168Hf; measured g factor by perturbed angular correlation in a static external magnetic field. Comparisons with hydrodynamic model, semiempirical model, IBA-2 model, large-scale shell-model, pairing plus quadrupole model. Systematics of g factors of first 2+ states for 96,98,100,104,106,108Hf. RADIOACTIVITY 168Ta(EC), (β+)[from 159Tb(16O, 7n), E=130 MeV]; measured Eγ, γγ-coin, perturbed γγ(θ) in a magnetic field; deduced g factor.
doi: 10.1103/PhysRevC.85.037304
2011AN04 Acta Phys.Pol. B42, 807 (2011) V.Anagnostatou, P.H.Regan, M.R.Bunce, D.McCarthy, V.Werner, T.Ahn, R.J.Casperson, R.Chevrier, N.Cooper, A.Heinz, G.Ilie, M.K.Smith, E.Williams, L.Bettermann, D.Radeck, C.W.Beausang, C.Boniwell, B.Pauerstein Measurements of Picosecond Lifetimes in the Transitional Nucleus 100Pd Using the RDDM in Inverse Kinematics NUCLEAR REACTIONS 24Mg(80Se, 4n)100Pd, E=268 MeV; measured fusion-evaporation products, Eγ, Iγ; deduced weak deformation, energies, J, π, B(E2), yrast sequence.
doi: 10.5506/APhysPolB.42.807
2011MC01 Phys.Rev. C 83, 024310 (2011) E.A.McCutchan, C.J.Lister, T.Ahn, R.J.Casperson, A.Heinz, G.Ilie, J.Qian, E.Williams, R.Winkler, V.Werner Shape coexistence in 72Se investigated following the β decay of 72Br RADIOACTIVITY 72Br(β+), (EC)[from 58Ni(16O, pn), E=50 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ) using YRAST array. 72Se; deduced levels, J, π, multipolarity, mixing ratio, β feedings, B(E2) strengths. Comparison with interacting boson model. Evidence of shape coexistence and configuration mixings.
doi: 10.1103/PhysRevC.83.024310
2011TA06 Phys.Rev. C 83, 044315 (2011) M.J.Taylor, G.Gurdal, G.Kumbartzki, N.Benczer-Koller, A.E.Stuchbery, Y.Y.Sharon, M.A.Bentley, Z.Berant, R.J.Casperson, R.F.Casten, A.Heinz, G.Ilie, R.Luttke, E.A.McCutchan, J.Qian, B.Shoraka, V.Werner, E.Williams, R.Winkler Low-energy structure of the even-A 96-104Ru isotopes via g-factor measurements NUCLEAR MOMENTS 96,98,100,102,104Ru, 106Pd; measured g factors of first 2+ states by transient-field-perturbed angular correlation technique used with Coulomb excitation in inverse kinematics. Comparison with IBM-2 calculations. NUCLEAR REACTIONS 12C(96Ru, 96Ru'), (98Ru, 98Ru'), (100Ru, 100Ru'), (102Ru, 102Ru'), (104Ru, 104Ru'), (106Pd, 106Pd'), E=280 MeV; 12C(102Ru, 102Ru'), E=160, 227 MeV; 12C(106Pd, 106Pd'), E=230 MeV; 24Mg(102Ru, 102Ru'), E=227 MeV; 26Mg(96Ru, 96Ru'), (98Ru, 98Ru'), E=230 MeV; 26Mg(100Ru, 100Ru'), (102Ru, 102Ru'), (104Ru, 104Ru'), E=227 MeV; measured (particle)γ-coin spectra, (particle)γ(θ), precession angles; deduced transient field strengths, g factors. Coulomb excitation in inverse kinematics.
doi: 10.1103/PhysRevC.83.044315
2011WE08 J.Phys.:Conf.Ser. 312, 092062 (2011) V.Werner, N.Cooper, M.Bonett-Matiz, E.Williams, J.-M.Regis, M.Rudigier, T.Ahn, V.Anagnostatou, Z.Berant, M.Bunce, M.Elvers, A.Heinz, G.Ilie, J.Jolie, D.Radeck, D.Savran, M.Smith Excited State Lifetime Measurements in Rare Earth Nuclei with Fast Electronics RADIOACTIVITY 174Re(EC) [from 169Tm(12C, 7n)174Re, E=115 MeV]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2). Comparison with IBA model and systematics. RADIOACTIVITY 168Ta(EC) [from 159Tb(16O, 7n)168Ta, E=130 MeV]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2). Comparison with IBA model and systematics.
doi: 10.1088/1742-6596/312/9/092062
2010BE03 Phys.Rev. C 81, 021303 (2010) L.Bettermann, V.Werner, E.Williams, R.J.Casperson New signature of a first order phase transition at the O(6) limit of the IBM NUCLEAR STRUCTURE 192,194,196,198Pt; calculated order parameter K3 for ground state and first excited 0+ state using interacting boson model (IBM). Comparison with experimental data.
doi: 10.1103/PhysRevC.81.021303
2010GU20 Phys.Rev. C 82, 064301 (2010) G.Gurdal, G.J.Kumbartzki, N.Benczer-Koller, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, T.Ahn, R.Casperson, A.Heinz, G.Ilie, J.Qian, V.Werner, E.Williams, R.Winkler, D.McCarthey g factors of the low-lying states in 106Pd: Examination of the vibrational character of 106Pd NUCLEAR MOMENTS 106Pd; measured g factors and half-lives of low lying 2+ and 4+ states using transient field (TF) technique in inverse kinematics in Coulomb excitation. Comparison with previous measurements and theoretical predictions. NUCLEAR REACTIONS C(106Pd, C'), E=230, 280, 290, 300 MeV; measured scattered C ions, Eγ, Iγ, γ(θ, H), (12C)γ-coin, level half-lives by line-shape method. 106Pd; deduced g factors, B(E2) values.
doi: 10.1103/PhysRevC.82.064301
2010WI05 Phys.Rev. C 81, 054306 (2010) E.Williams, R.J.Casperson, V.Werner Scaling properties of quantum shape phase transitions in the interacting boson model-1
doi: 10.1103/PhysRevC.81.054306
2010WI12 Phys.Rev. C 82, 054308 (2010) E.Williams, R.J.Casperson, V.Werner Effective critical points in finite quantum phase transitional systems
doi: 10.1103/PhysRevC.82.054308
2009BE42 Phys.Rev. C 80, 057303 (2009) Z.Berant, E.Oster, R.J.Casperson, A.Wolf, V.Werner, A.Heinz, R.F.Casten, G.Gurdal, E.A.McCutchan, D.S.Brenner, J.R.Terry, R.Winkler, E.Williams, J.Qian, A.Schmidt, M.K.Smith, T.Ahn, C.W.Beausang, P.H.Regan, T.Ross, M.Bunce, B.Darakchieva, D.A.Meyer, J.LeBlanc, K.Dudziak, C.Bauer, G.Henning g factor of the 2+1 state of 172Hf NUCLEAR MOMENTS 172Hf; measured g factor of first 2+ state using integral perturbed angular correlation method. Comparisons with g factors of neighboring even-even Hf nuclei and with predictions of several nuclear models including interacting boson approximation (IBA-2). RADIOACTIVITY 172Ta(EC), (β+) [from 165Ho(12C, 5n), E=85 MeV]; measured Eγ, Iγ, γγ-coin, and cascade Iγ as a function of angle and magnetic field.
doi: 10.1103/PhysRevC.80.057303
2009BO23 Phys.Rev. C 80, 034311 (2009); Erratum Phys.Rev. C 80, 049902 (2009) D.Bonatsos, E.A.McCutchan, R.F.Casten, R.J.Casperson, V.Werner, E.Williams Regularities and symmetries of subsets of collective 0+ states
doi: 10.1103/PhysRevC.80.034311
2009MU06 Phys.Rev. C 79, 054310 (2009) D.Mucher, G.Gurdal, K.-H.Speidel, G.J.Kumbartzki, N.Benczer-Koller, S.J.Q.Robinson, Y.Y.Sharon, L.Zamick, A.F.Lisetskiy, R.J.Casperson, A.Heinz, B.Krieger, J.Leske, P.Maier-Komor, V.Werner, E.Williams, R.Winkler Nuclear structure studies of 70Zn from g-factor and lifetime measurements NUCLEAR REACTIONS 12C(70Zn, X), E=180-200 MeV; measured Eγ, Iγ, γγ-coin, (particle)γ-coin, γγ(θ), half-lives and spin precessions in a magnetic field. 70Zn; deduced levels, J, π. Comparison with large-scale shell-model calculations. NUCLEAR MOMENTS 70Zn; measured g factors by projectile Coulomb excitation in inverse kinematics combined with transient magnetic field. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.79.054310
2009WI18 Phys.Rev. C 80, 054309 (2009) E.Williams, R.J.Casperson, V.Werner, H.Ai, P.Boutachkov, M.Chamberlain, G.Gurdal, A.Heinz, E.A.McCutchan, J.Qian, R.Winkler Candidates for low-lying mixed-symmetry states in 140Nd RADIOACTIVITY 140Pm(β+), (β+EC) [from 140Sm(β+), (β+EC), from 114Cd(30Si, 4n), E=130 MeV]; measured Eγ, Iγ, γγ-coin, and γγ(θ) using Yrast ball. 140Nd; deduced levels, J, π, and mixing ratios. Low-lying mixed-symmetry states discussed. Comparisons with level systematics of 136Ba and 138Ce.
doi: 10.1103/PhysRevC.80.054309
2008FI08 Phys.Rev. C 78, 034309 (2008) C.R.Fitzpatrick, V.Werner, R.F.Casten, E.Williams, H.Ai, C.W.Beausang, R.B.Cakirli, G.Gurdal, A.Heinz, E.A.McCutchan, D.A.Meyer, E.Novitski, J.Qian, R.Winkler Investigation into the B(E2) anomaly in 144Nd using Coulomb excitation NUCLEAR REACTIONS 144Nd, 148Sm(48Ti, 48Ti'), E=130 MeV; measured Eγ, Iγ, σ; deduced B(E2) ratios. Coulomb excitation.
doi: 10.1103/PhysRevC.78.034309
2008GU02 Phys.Rev. C 77, 024314 (2008) G.Gurdal, C.W.Beausang, D.S.Brenner, H.Ai, R.F.Casten, B.Crider, A.Heinz, E.Williams, D.J.Hartley, M.P.Carpenter, A.A.Hecht, R.V.F.Janssens, T.Lauritsen, C.J.Lister, R.Raabe, D.Seweryniak, S.Zhu, J.X.Saladin Measurement of conversion coefficients in normal and triaxial strongly deformed bands in 167Lu NUCLEAR REACTIONS 123Sb(48Ca, 4n), E=203 MeV; measured Eγ, Iγ, conversion electrons; 167Lu; deduced conversion coefficients.
doi: 10.1103/PhysRevC.77.024314
2008MC01 Phys.Rev. C 77, 054304 (2008) E.A.McCutchan, R.F.Casten, V.Werner, E.Williams, R.Winkler, A.Wolf, Z.Berant, G.Gurdal, J.Qian, H.Ai, L.Amon, C.W.Beausang, D.S.Brenner, R.B.Cakirli, R.J.Casperson, C.R.Fitzpatrick, D.Frank, A.B.Garnsworthy, A.Heinz, R.Luttke, A.F.Mertz, Y.Oktem, N.Pietralla, P.H.Regan, B.Shoraka, J.R.Terry, N.J.Thompson Enhanced mixing of intrinsic states in deformed Hf nuclei RADIOACTIVITY 170,172,174Ta(β+), (EC) [from 159Tb(16O, 5n), E=100 MeV; 165Ho(12C, 5n), E=80 MeV; 168Er(11B, 5n), E=65 MeV]; measured Eγ, Iγ, γγ-coin, branching ratios. 170,172,174Hf; deduced levels, J, π. 166,168,170,172,174Hf; systematics.
doi: 10.1103/PhysRevC.77.054304
2008MC04 Phys.Rev. C 78, 014320 (2008) E.A.McCutchan, R.F.Casten, V.Werner, R.Winkler, R.B.Cakirli, G.Gurdal, X.Liang, E.Williams β decay spectroscopy of 192Pt and the nature of 0+ excitations RADIOACTIVITY 192Au(β+)(EC); measured Eγ, Iγ, γγ-coin. 192Pt; deduced levels, J, π, B(E2). 172,174,176,178,180,182,184,186,188,190,192,194Pt; systematics. Comparison with model calculations.
doi: 10.1103/PhysRevC.78.014320
2008ME02 Phys.Rev. C 77, 014307 (2008) A.F.Mertz, E.A.McCutchan, R.F.Casten, R.J.Casperson, A.Heinz, B.Huber, R.Luttke, J.Qian, B.Shoraka, J.R.Terry, V.Werner, E.Williams, R.Winkler First experimental test of X(5) critical-point symmetry in the A ∼ 130 mass region: Low-spin states and the collective structure of 130Ce RADIOACTIVITY 130Pr(β+)(EC) [from 107Ag(27Al, p3n), E=113 MeV]; measured Eγ, Iγ, γγ-coin. 130Ce; deduced levels, J, π, B(E2), comparison with calculations using X(5) and IBA models.
doi: 10.1103/PhysRevC.77.014307
2008WE07 Phys.Rev. C 78, 031301 (2008) V.Werner, N.Benczer-Koller, G.Kumbartzki, J.D.Holt, P.Boutachkov, E.Stefanova, M.Perry, N.Pietralla, H.Ai, K.Aleksandrova, G.Anderson, R.B.Cakirli, R.J.Casperson, R.F.Casten, M.Chamberlain, C.Copos, B.Darakchieva, S.Eckel, M.Evtimova, C.R.Fitzpatrick, A.B.Garnsworthy, G.Gurdal, A.Heinz, D.Kovacheva, C.Lambie-Hanson, X.Liang, P.Manchev, E.A.McCutchan, D.A.Meyer, J.Qian, A.Schmidt, N.J.Thompson, E.Williams, R.Winkler Evidence for the microscopic formation of mixed-symmetry states from magnetic moment measurements NUCLEAR REACTIONS C(92Zr, 92Zr'), (94Zr, 94Zr'), E=275 MeV; measured Eγ, Iγ, (particle)γ-coin. Comparison with shell model and quasiparticle phonon model calculations. NUCLEAR MOMENTS C(92Zr, 92Zr'), (94Zr, 94Zr'), E=275 MeV; 92,94Zr; measured g factors. Transient field technique.
doi: 10.1103/PhysRevC.78.031301
2008WE09 Phys.Rev. C 78, 051303 (2008) V.Werner, E.Williams, R.J.Casperson, R.F.Casten, C.Scholl, P.von Brentano Deformation crossing near the first-order shape-phase transition in 152-156Gd NUCLEAR STRUCTURE 152,154,156Gd; analyzed B(E2) values; deduced quadrupole shape invariant, spherical-to-deformed phase transitions. Comparisons with Interacting Boson Model.
doi: 10.1103/PhysRevC.78.051303
2008WI06 Phys.Rev. C 77, 061302 (2008) E.Williams, R.J.Casperson, V.Werner Spin dependence of critical point behavior for first and second order phase transitions in nuclei
doi: 10.1103/PhysRevC.77.061302
2007AS05 Acta Phys.Pol. B38, 1385 (2007) S.F.Ashley, A.Linnemann, J.Jolie, P.H.Regan, K.Andgren, A.Dewald, E.A.McCutchan, B.Melon, O.Moller, N.V.Zamfir, L.Amon, N.Boelaert, R.B.Cakirli, R.F.Casten, R.M.Clark, C.Fransen, W.Gelletly, G.Gurdal, M.Heidemann, K.L.Keyes, M.N-.Erduran, D.A.Meyer, A.Papenberg, C.Plettner, G.Rainovski, R.V.Ribas, N.J.Thomas, J.Vinson, D.D.Warner, V.Werner, E.Williams, K.O.Zell Lifetime Determination of Excited States in 106Cd NUCLEAR REACTIONS 98Mo(12C, 4n)106Cd, E=60 MeV; 96Mo(13C, 3n)106Cd, E=43 MeV; measured Eγ, Iγ, lifetimes for isomeric states.
2007AS07 Phys.Rev. C 76, 064302 (2007) S.F.Ashley, P.H.Regan, K.Andgren, E.A.McCutchan, N.V.Zamfir, L.Amon, R.B.Cakirli, R.F.Casten, R.M.Clark, W.Gelletly, G.Gurdal, K.L.Keyes, D.A.Meyer, M.N.Erduran, A.Papenberg, N.Pietralla, C.Plettner, G.Rainovski, R.V.Ribas, N.J.Thomas, J.Vinson, D.D.Warner, V.Werner, E.Williams, H.L.Liu, F.R.Xu Intrinsic state lifetimes in 103Pd and 106, 107Cd NUCLEAR REACTIONS 98Mo(12C, 3n), (12C, 4n), (12C, 2nα), (12C, 3nα), E=60 MeV; measured Eγ, Iγ, γγ coin. 103Pd, 106,107Cd; deduced levels, J, π, configurations, lifetimes using recoil distance Doppler shift and differential decay cutoff methods.
doi: 10.1103/PhysRevC.76.064302
2007BE33 Acta Phys.Pol. B38, 1535 (2007) C.W.Beausang, S.R.Lesher, J.T.Burke, L.A.Bernstein, L.Phair, H.Ai, G.Gurdal, L.Ahle, D.S.Brenner, M.Carpenter, R.M.Clark, B.Crider, J.Escher, P.Fallon, J.P.Greene, D.J.Hartley, A.A.Hecht, R.V.F.Janssens, T.Lauritsen, I.Y.Lee, C.J.Lister, A.O.Macchiavelli, M.A.McMahan, C.Plettner, J.Rohrer, D.Seweryniak, E.Williams, S.Zhu New Results on Fission Cross Sections in Actinide Nuclei Using the Surrogate Ratio Method and on Conversion Coefficients in Triaxial Strongly Deformed Bands in 167Lu from ICE Ball and Gammasphere NUCLEAR REACTIONS 234,236U(α, α'f), E=55 MeV; measured Eα, fission fragment energy, (fission-fragment)α-coinc. Deduced fission probabilities. Compared results to ENDF data. NUCLEAR REACTIONS 123Sb(48Ca, X)167Lu, E=203 MeV; measured Eγ, Iγ, conversion electron energies, γγ-coinc, (conversion-electron)γ-coinc. 167Lu deduced conversion coefficients.
2007BO04 Phys.Rev. C 75, 021302 (2007) P.Boutachkov, N.Benczer-Koller, G.J.Kumbartzki, A.Escuderos, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, H.Ai, M.Chamberlain, G.Gurdal, A.Heinz, E.A.McCutchan, J.Quian, V.Werner, E.Williams, K.Aleksandrova, C.A.Copos, D.A.Kovacheva, P.Manchev Sign of the g factor of the 4+1 state in 68Zn NUCLEAR REACTIONS 12C(68Zn, 68Zn'), E=180, 200 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 68Zn deduced levels, J, π, g. Transient field technique. Comparison with model predictions.
doi: 10.1103/PhysRevC.75.021302
2007BO41 Phys.Rev. C 76, 054311 (2007) P.Boutachkov, S.J.Q.Robinson, A.Escuderos, G.Kumbartzki, N.Benczer-Koller, E.Stefanova, Y.Y.Sharon, L.Zamick, E.A.McCutchan, V.Werner, H.Ai, A.B.Garnsworthy, G.Gurdal, A.Heinz, J.Qian, N.J.Thompson, E.Williams, R.Winkler Measurement of the g factor of the 4+1 state in 70Ge NUCLEAR REACTIONS C(70Ge, X)70Ge, E=190, 225 MeV; measured Eγ, Iγ; deduced levels, J, π, g-factors for 2+, 3+ and 4+ states, B(E2), half-lives. Comparison with calculated and measured g-factors of 64,66,68Zn, 74,76,78,80,82Se.
doi: 10.1103/PhysRevC.76.054311
2007MC08 Phys.Rev. C 76, 064307 (2007) E.A.McCutchan, R.F.Casten, V.Werner, A.Wolf, Z.Berant, R.J.Casperson, A.Heinz, R.Luttke, B.Shoraka, J.R.Terry, E.Williams, R.Winkler β decay study of 168Hf and a test of new geometrical models RADIOACTIVITY 168Ta (β+), (EC) [from 159Tb(16O, 7n), E=130 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ). 168Hf; deduced levels, J, π, multipolarities, mixing ratios, B(E2). Compared with calculations using CBS and Davidson models and IBA model. 166,168Yb; measured Eγ.
doi: 10.1103/PhysRevC.76.064307
2007WO08 Phys.Rev. C 76, 047308 (2007) A.Wolf, Z.Berant, A.Heinz, V.Werner, E.A.McCutchan, G.Gurdal, R.B.Cakirli, Y.Oktem, J.Ai, L.Amon, C.W.Beausang, D.S.Brenner, R.F.Casten, R.J.Casperson, K.Dusling, C.R.Fitzpatrick, A.B.Gransworthy, N.Pietralla, J.Qian, P.H.Regan, N.J.Thompson, E.Williams, R.Winkler g factor of the 2+1 state of 170Hf RADIOACTIVITY 170Ta(β+), (EC) [from 159Tb(16O, 5n), E=100 MeV]; measured Eγ, Iγ, γγ(θ) in static magnetic field. 170Hf; deduced levels, J, π, g-factor of first 2+ state.
doi: 10.1103/PhysRevC.76.047308
2006BA75 Int.J.Mod.Phys. E15, 1735 (2006) D.L.Balabanski, K.A.Gladnishki, G.Lo Bianco, A.Saltarelli, N.V.Zamfir, E.A.McCutchan, H.Ai, R.F.Casten, A.Heinz, D.A.Meyer, C.Plettner, J.Qian, V.Werner, E.Williams, B.Akkus, L.Amon, R.B.Cakirli, M.N.Erduran, Y.Oktem, S.F.Ashley, P.H.Regan, G.Rainovski Evidence for X(5) critical point symmetry in 128Ce NUCLEAR REACTIONS 100Mo(32S, 4n), E=120 MeV; measured Eγ, Iγ, γγ-coin, DSA. 128Ce levels deduced T1/2, B(E2), symmetry features. DSAM and recoil-distance techniques.
doi: 10.1142/S0218301306005538
2006MC02 Phys.Rev. C 73, 034303 (2006) E.A.McCutchan, N.V.Zamfir, R.F.Casten, H.Ai, H.Amro, M.Babilon, D.S.Brenner, G.Gurdal, A.Heinz, R.O.Hughes, D.A.Meyer, C.Plettner, J.Qian, J.J.Ressler, N.J.Thomas, V.Werner, E.Williams, R.Winkler Lifetime measurements of yrast states in 162Yb and 166Hf NUCLEAR REACTIONS 116Cd(50Ti, 4n), E=200 MeV; 122Sn(48Ti, 4n), E=200 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 162Yb, 166Hf deduced levels T1/2, B(E2). Recoil-distance method, comparison with X(5) critical-point and IBA model predictions.
doi: 10.1103/PhysRevC.73.034303
2006ME03 Phys.Rev. C 73, 024307 (2006) D.A.Meyer, C.W.Beausang, J.J.Ressler, H.Ai, H.Amro, M.Babilon, R.F.Casten, C.R.Fitzpatrick, G.Gurdal, A.Heinz, E.A.McCutchan, C.Plettner, J.Qian, N.J.Thomas, V.Werner, E.Williams, N.V.Zamfir, J.Zhang First investigation of excited states in the odd-proton nucleus 209Fr NUCLEAR REACTIONS 176Yb(37Cl, 3n), (37Cl, 4n), (37Cl, 4np), E=173, 179, 185 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin; deduced excitation functions. 197Au(16O, 4n), (16O, 3n), E=90 MeV; measured Eγ, Iγ, γγ-coin. 209Fr deduced levels, J, π, configurations, isomer T1/2. 208Rn, 210Fr deduced isomers T1/2. Gas-filled spectrometer.
doi: 10.1103/PhysRevC.73.024307
2006WI15 Phys.Rev. C 74, 024302 (2006) E.Williams, C.Plettner, E.A.McCutchan, H.Levine, N.V.Zamfir, R.B.Cakirli, R.F.Casten, H.Ai, C.W.Beausang, G.Gurdal, A.Heinz, J.Qian, D.A.Meyer, N.Pietralla, V.Werner Revisiting anomalous B(E2;4+1 → 2+1)/B(E2;2+1 → 0+1) values in 98Ru and 180Pt NUCLEAR REACTIONS 27Al(98Ru, 98Ru'), E=289 MeV; measured Eγ, Iγ, γγ-coin following projectile Coulomb excitation. 98Ru deduced transitions B(E2). 122Sn(62Ni, 4n), E=265 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 180Pt deduced transitions T1/2, B(E2). Comparison with previous results, model predictions.
doi: 10.1103/PhysRevC.74.024302
2005AN26 J.Phys.(London) G31, S1563 (2005) K.Andgren, S.F.Ashley, P.H.Regan, E.A.McCutchan, N.V.Zamfir, L.Amon, R.B.Cakirli, R.F.Casten, R.M.Clark, G.Gurdal, K.L.Keyes, D.A.Meyer, M.N.Erduran, A.Papenberg, N.Pietralla, C.Plettner, G.Rainovski, R.V.Ribas, N.J.Thomas, J.Vinson, D.D.Warner, V.Werner, E.Williams RDM lifetime measurements in 107Cd NUCLEAR REACTIONS 98Mo(12C, 3n), E=60 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 107Cd levels deduced T1/2, B(E2). Recoil-distance method.
doi: 10.1088/0954-3899/31/10/033
2005PL03 Phys.Rev. C 71, 051602 (2005) C.Plettner, H.Ai, C.W.Beausang, L.A.Bernstein, L.Ahle, H.Amro, M.Babilon, J.T.Burke, J.A.Caggiano, R.F.Casten, J.A.Church, J.R.Cooper, B.Crider, G.Gurdal, A.Heinz, E.A.McCutchan, K.Moody, J.A.Punyon, J.Qian, J.J.Ressler, A.Schiller, E.Williams, W.Younes Estimation of (n, f) cross sections by measuring reaction probability ratios NUCLEAR REACTIONS 236,238U(d, pF), (d, d'F), E=24, 32 MeV; measured fission probability ratios. Comparison with results from neutron-induced reactions.
doi: 10.1103/PhysRevC.71.051602
2005PL05 J.Phys.(London) G31, S1573 (2005) C.Plettner, H.Ai, C.W.Beausang, L.A.Bernstein, L.Ahle, H.Amro, M.Babilon, J.T.Burke, J.A.Caggiano, R.F.Casten, J.A.Church, J.R.Cooper, B.Crider, G.Gurdal, A.Heinz, E.A.McCutchan, K.Moody, J.A.Punyon, J.Qian, J.J.Ressler, A.Schiller, E.Williams, W.Younes Measuring reaction probability ratios to simulate neutron-induced cross-sections of short-lived nuclei NUCLEAR REACTIONS 236,238U(d, d'F), (d, pF), E=24, 32 MeV; measured fragment yields; deduced fission probability ratios vs excitation energy. Surrogate method for neutron-induced fission cross-section determination.
doi: 10.1088/0954-3899/31/10/035
2005RE02 Phys.Rev. C 71, 014302 (2005) J.J.Ressler, C.W.Beausang, H.Ai, H.Amro, M.Babilon, J.A.Caggiano, R.F.Casten, G.Gurdal, A.Heinz, R.O.Hughes, E.A.McCutchan, D.A.Meyer, C.Plettner, J.Qian, M.J.S.Sciacchitano, N.J.Thomas, E.Williams, N.V.Zamfir Isomeric decay of 208Ra NUCLEAR REACTIONS 182W(30Si, 4n), E=151 MeV; measured delayed Eγ, Iγ, (recoil)γ-coin. 208Ra deduced levels, J, π, isomeric state T1/2. 182,183,184,186W(30Si, X)210Ra/209Ra/208Ra/209Fr, E=151 MeV; measured delayed Eγ, Iγ, (recoil)γ-coin. 209Fr, 209,210Ra deduced transitions. Level systematics in neighboring nuclides discussed.
doi: 10.1103/PhysRevC.71.014302
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
2005WO06 Phys.Rev. C 72, 027301 (2005) A.Wolf, Z.Berant, N.V.Zamfir, D.S.Brenner, E.A.McCutchan, H.Ai, R.F.Casten, K.Dusling, A.Heinz, D.A.Meyer, E.A.Millman, N.Pietralla, C.Plettner, J.Qian, P.H.Regan, D.Swanson, J.Vinson, E.Williams, R.Winkler g factor of the 2+1 state of 160Er RADIOACTIVITY 160Yb, 160Tm(EC) [from 147Sm(18O, 5n) and subsequent decay]; measured β-delayed Eγ, Iγ(θ, H, t), γγ-coin. 160Er level deduced g factor. Perturbed angular correlation technique, systematics in neighboring nuclides discussed.
doi: 10.1103/PhysRevC.72.027301
1994HO38 Nucl.Instrum.Methods Phys.Res. A353, 20 (1994) W.A.Hollerman, J.H.Fisher, L.R.Holland, G.M.Jenkins, D.B.Nisen, E.K.Williams, C.C.Foster Measurement of Fluorescence Phenomena from Yttrium and Gadolinium Fluors using a 45 MeV Proton Beam
doi: 10.1016/0168-9002(94)91593-8
1994WI15 Nucl.Instrum.Methods Phys.Res. B85, 537 (1994) E.K.Williams, D.Ila, R.L.Zimmerman Simultaneous Application of (p, γ) and (p, α) Channeling to the Detection of Light Elements in Crystals NUCLEAR REACTIONS 7Li(p, p'γ), 19F(p, αγ), E=1.03 MeV; measured γ yield. 7Li(p, α), E=1.03 MeV; measured α yield; deduced channeling dependence. Simultaneous (p, γ), (p, α) channeling.
doi: 10.1016/0168-583X(94)95879-3
1989GU11 Nucl.Instrum.Methods Phys.Res. B40/41, 81 (1989) N.A.Guardala, S.H.Greenberg, E.T.Williams, D.Yan K-Shell Ionization Cross Section Measurements of 59Pr, 60Nd and 62Sm Using 1.0-3.0 MeV Protons and a New Normalization Method NUCLEAR REACTIONS Pr, Nd, Sm(p, X), E=1-3 MeV; measured K-shell ionization σ. ATOMIC PHYSICS Pr, Nd, Sm(p, X), E=1-3 MeV; measured K-shell ionization σ.
doi: 10.1016/0168-583X(89)90928-2
1975EL08 Nucl.Sci.Eng. 58, 291 (1975) M.F.Elgart, H.L.Finston, R.Rundberg, E.T.Williams, A.H.Bond, Jr., E.Yellin Neutron-Absorption Cross Sections of Some Radioactive Nuclides NUCLEAR REACTIONS Na, I(n, 2n), E=reactor spectrum; measured 22Na, 126I yields.
doi: 10.13182/NSE75-A26778
1971KA17 Phys.Rev. C4, 840 (1971) S.Kardonsky, H.L.Finston, E.T.Williams 40Ar(n, α)37S Reaction at 14.4 MeV NUCLEAR REACTIONS 40Ar(n, α), E=14.4 MeV; measured σ(T), σ(Eα), Q. 37S deduced levels.
doi: 10.1103/PhysRevC.4.840
1971KA18 Phys.Rev. C4, 846 (1971) S.Kardonsky, H.L.Finston, E.T.Williams Reactions of 20Ne with 14.3-MeV Neutrons NUCLEAR REACTIONS 20Ne(n, p), (n, α)(n, 2α), E=14.3 MeV; measured σ(Ep), σ(Eα). 20Ne(n, 2α), E=14.3 MeV; measured Q. 20F, 17O deduced levels.
doi: 10.1103/PhysRevC.4.846
1966HA26 Nucl.Phys. 82, 614 (1966) P.G.Hansen, H.L.Nielsen, E.T.Williams, K.Wilsky Levels in the Odd Nucleus 156Eu RADIOACTIVITY 156Sm [from 239Pu(n, F), chem]; measured Eγ, Iγ, Iγ, ce, ICC, Eβ, ceγ-, ceβ-, βγ-coin, Qβ. 156Eu deduced levels, J, π.
doi: 10.1016/0029-5582(66)90475-5
1966WI03 Phys.Rev. 144, 945 (1966) Decay of 54-sec Br86 and 55-sec Br87 NUCLEAR STRUCTURE 87Br, 86Br; measured not abstracted; deduced nuclear properties.
doi: 10.1103/PhysRev.144.945
1966WI18 Nucl.Appl. 2, 256 (1966) Absence of Species Other Than 87Br Contributing to the 55.4-sec Delayed Neutron Activity in Fission NUCLEAR STRUCTURE 87Br; measured not abstracted; deduced nuclear properties.
1966WI19 J.Inorg.Nucl.Chem. 28, 681 (1966) Two γ Rays in the Decay of 3.0-min 85Br RADIOACTIVITY 85Br; measured Eβ, Eγ, γγ-coin.
doi: 10.1016/0022-1902(66)80359-7
1965HA24 Nucl.Phys. 71, 481 (1965) P.G.Hansen, H.L.Nielsen, E.T.Williams, K.Wilsky The ±p=±n = 1/2 Excitations in the Odd Nucleus 172Tm RADIOACTIVITY 172Er [from 170Er(2n, γ)]; measured Eγ, Iγ, E(ce), I(ce), γce--coin, ICC. 172Tm deduced levels, J, π. Enriched source.
doi: 10.1016/0029-5582(65)90759-5
1965WI08 Phys.Letters 15, 143 (1965) E.T.Williams, P.G.Hansen, J.Lippert, H.L.Nielsen, K.Wilsky An Odd-Odd-Nucleus with 0+ Ground State (Eu156) RADIOACTIVITY 156Sm, 156Eu(β-) [from 239Pu(n, F)156Sm, E thermal]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced γ-ray energies, level energies, J, π, partial decay scheme, γ-γ-angular correlation coefficients, log ft, amplitude of the isobaric admixture. Comparison with Nilsson orbitals calculation. Electron spectroscopy with a six-gap spectrometer.
doi: 10.1016/0031-9163(65)91315-6
1963WI02 MIT-LNS Progr.Report, p.34 (May 1963); NYO-10063 Short-Lived Bromine Fission Products NUCLEAR STRUCTURE 86Br, 85Br, 87Br, 88Br; measured not abstracted; deduced nuclear properties.
1962WI20 mit-Lns Progr. Rept. p.12 (November 1962) Decay of Br86 and Br87 NUCLEAR STRUCTURE 87Br, 86Se, 86Br; measured not abstracted; deduced nuclear properties.
1961WI20 mit-Lns Progr.Report (Nov. 1961) p.39 (1961) E.Short-lived Bromines in Fission NUCLEAR STRUCTURE 87Br, 86Br; measured not abstracted; deduced nuclear properties.
1939WA08 Proc.Roy.Soc.(London), Ser.A 171, 360 (1939) H.Walke, E.J.Williams, G.R.Evans K-electron capture, nuclear isomerism and the long period activities of titanium and scandium RADIOACTIVITY 47V(EC), 46Sc, 51Ti(β-) [from Ti(d, X), E not given]; measured decay products, Eβ, Iβ, X-rays; deduced T1/2, σ ratios, decay schemes. Comparison with available data.
doi: 10.1098/rspa.1939.0071
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