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NSR database version of April 11, 2024.

Search: Author = J.O.Newton

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2007DA26      Nucl.Phys. A787, 144c (2007)

M.Dasgupta, D.J.Hinde, A.Mukherjee, J.O.Newton

New challenges in understanding heavy ion fusion

NUCLEAR REACTIONS 208Pb(12C, X), E(cm)=50-90 MeV; analyzed σ(θ), fusion σ. 204,208Pb(16O, X), E not given; analyzed fusion σ. Coupled channel model. Sub-barrier and incomplete fusion discussed.

doi: 10.1016/j.nuclphysa.2006.12.025
Citations: PlumX Metrics


2007HI04      Phys.Rev. C 75, 054603 (2007)

D.J.Hinde, M.Dasgupta, N.Herrald, R.G.Neilson, J.O.Newton, M.A.Lane

Isotopic dependence of fusion barrier energies in reactions forming heavy elements

NUCLEAR REACTIONS 208Pb(32S, X)240Cf, 206Pb(34S, X)240Cf, 204Pb(36S, X)240Cf, E=152-212 MeV; measured σ, fusion excitation functions, fission anisotropies. Deduced fusion barried energy systematics.

doi: 10.1103/PhysRevC.75.054603
Citations: PlumX Metrics


2007MU06      Phys.Rev. C 75, 044608 (2007)

A.Mukherjee, D.J.Hinde, M.Dasgupta, K.Hagino, J.O.Newton, R.D.Butt

Failure of the Woods-Saxon nuclear potential to simultaneously reproduce precise fusion and elastic scattering measurements

NUCLEAR REACTIONS 208Pb(12C, X), E(cm)=58-94 MeV; measured fusion, fission, and evaporation residue σ; deduced barrier distribution. Comparison with model predictions.

doi: 10.1103/PhysRevC.75.044608
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0476.


2006GA40      Phys.Rev.C 74, 064615 (2006)

L.R.Gasques, M.Dasgupta, D.J.Hinde, T.Peatey, A.Diaz-Torres, J.O.Newton

Isomer ratio measurements as a probe of the dynamics of breakup and incomplete fusion

NUCLEAR REACTIONS 209Bi(6Li, X)212At, E=28-48 MeV; 209Bi(7Li, X)212At/211Po, E=26-52 MeV; 208Pb(9Be, X)211Po, E=36-51 MeV; measured ground and isomeric state σ; deduced angular momentum distribution, related reaction mechanism features.

doi: 10.1103/PhysRevC.74.064615
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1663.


2006GO12      Phys.Rev. C 73, 034610 (2006)

I.I.Gontchar, D.J.Hinde, M.Dasgupta, C.R.Morton, J.O.Newton

Semi-microscopic calculations of the fusion barrier distributions for reactions involving deformed target nuclei

NUCLEAR REACTIONS 154Sm, 186W, 238U(16O, X), E(cm) ≈ 50-90 MeV; 168Er(34S, X), E(cm) ≈ 110-130 MeV; 232Th(19F, X), E(cm) ≈ 80-100 MeV; 238U, 232Th(12C, X), E(cm) ≈ 50-70 MeV; calculated fusion barrier distributions; deduced finite-size effects. Double-folding model.

doi: 10.1103/PhysRevC.73.034610
Citations: PlumX Metrics


2006GO28      Phys.Atomic Nuclei 69, 1428 (2006)

I.I.Gontchar, M.Dasgupta, D.J.Hinde, J.O.Newton

The Finite Size Effects in Fusion of Deformed Nuclei at Incident Energies near the Barrier

NUCLEAR REACTIONS 154Sm, 168Er, 186W, 238U(16O, X), 168Er(34S, X), 238U, 232Th(12C, X), E not given; calculated angular-dependent fusion barrier energies, finite-size effects. 154Sm, 186W(16O, X), E ≈ threshold; calculated fusion barrier distributions.

doi: 10.1134/S1063778806080230
Citations: PlumX Metrics


2004DA22      Prog.Theor.Phys.(Kyoto), Suppl. 154, 209 (2004)

M.Dasgupta, D.J.Hinde, J.O.Newton, K.Hagino

The Nuclear Potential in Heavy-Ion Fusion

NUCLEAR REACTIONS 208Pb(19F, X), E(cm)=70-160 MeV; analyzed fusion σ; deduced potential features, dynamical effects.


2004DA23      Phys.Rev. C 70, 024606 (2004)

M.Dasgupta, P.R.S.Gomes, D.J.Hinde, S.B.Moraes, R.M.Anjos, A.C.Berriman, R.D.Butt, N.Carlin, J.Lubian, C.R.Morton, J.O.Newton, A.Szanto de Toledo

Effect of breakup on the fusion of 6Li, 7Li, and 9Be with heavy nuclei

NUCLEAR REACTIONS 209Bi(6Li, X)213Rn/212Rn/211Rn/210Rn/213At/212At/211At/212Po/211Po/210Po, E=26-48 MeV; 209Bi(7Li, X)214Rn/213Rn/212Rn/211Rn/213At/212At/211At/212Po/211Po/210Po/211Bi, E=26-52 MeV; 208Pb(9Be, X)215Rn/214Rn/213Rn/212Rn/212Po/211Po/210Po, E=36-51 MeV; measured fission, complete and incomplete fusion σ; deduced barrier distributions, breakup effects, other reaction mechanism features.

doi: 10.1103/PhysRevC.70.024606
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0719.


2004GO04      Phys.Rev. C 69, 024610 (2004)

I.I.Gontchar, D.J.Hinde, M.Dasgupta, J.O.Newton

Double folding nucleus-nucleus potential applied to heavy-ion fusion reactions

NUCLEAR REACTIONS 208Pb(16O, X), E=70-90 MeV; calculated fusion σ. 208Pb(9Be, X), 92Zr, 204Pb(12C, X), 92Zr, 144,148Sm, 208Pb(16O, X), 144Sm(17O, X), 197Au, 208Pb(19F, X), 92Zr, 144Sm, 208Pb(28Si, X), 89Y(34S, X), (32S, X), 90,96Zr(36S, X), 92Zr(35Cl, X), 90,96Zr, 124Sn(40Ca, X), E not given; calculated fusion barrier energies, related features. Double-folding potential.

doi: 10.1103/PhysRevC.69.024610
Citations: PlumX Metrics


2004NE02      Phys.Lett. B 586, 219 (2004)

J.O.Newton, R.D.Butt, M.Dasgupta, D.J.Hinde, I.I.Gontchar, C.R.Morton, K.Hagino

Systematics of precise nuclear fusion cross sections: the need for a new dynamical treatment of fusion?

NUCLEAR REACTIONS 208Pb(16O, X), E(cm)=80-105 MeV; 208Pb(9Be, X), 92Zr, 204Pb(12C, X), 58,62Ni, 92Zr, 112,116Sn, 144,148,154Sm, 182,186W, 194,198Pt, 238U(16O, X), 144Sm(17O, X), 197Au, 208Pb, 232Th(19F, X), 92Zr, 144Sm, 178Hf, 208Pb(28Si, X), 178Hf(29Si, X), 186W(30Si, X), 175Lu(31P, X), 89Y, 208Pb, 232Th(32S, X), 89Y, 168Er(34S, X), 92Zr(35Cl, X), 48Ca, 46,48,50Ti, 90,96Zr, 124Sn, 192Os, 194Pt(40Ca, X), 60Ni(58Ni, X), E not given; analyzed fusion excitation functions; deduced diffuseness parameter, possible dynamical effects.

doi: 10.1016/j.physletb.2004.02.052
Citations: PlumX Metrics


2004NE10      Phys.Rev. C 70, 024605 (2004)

J.O.Newton, R.D.Butt, M.Dasgupta, D.J.Hinde, I.I.Gontchar, C.R.Morton, K.Hagino

Systematic failure of the Woods-Saxon nuclear potential to describe both fusion and elastic scattering: Possible need for a new dynamical approach to fusion

NUCLEAR REACTIONS 208Pb(9Be, X), 92Zr, 204Pb(12C, X), 58,62Ni, 92Zr, 112,116Sn, 144,148,154Sm, 182,186W, 194Pt, 208Pb, 238U(16O, X), 144Sm(17O, X), 194Pt(18O, X), 197Au, 208Pb, 232Th(19F, X), 92Zr, 144Sm, 178Hf, 208Pb(28Si, X), 178Hf(29Si, X), 186W(30Si, X), 92Zr(35Cl, X), 175Lu(31P, X), 89Y, 208Pb, 232Th(32S, X), 89Y, 168Er(34S, X), 90,96Zr(36S, X), 48Ca, 46,48,50Ti, 90,96Zr, 124Sn, 192Os, 194Pt(40Ca, X), 48Ca(48Ca, X), 60Ni(58Ni, X), E > barrier; analyzed fusion excitation functions; deduced diffuseness parameters and radii, possible resonance effects, dynamical features.

doi: 10.1103/PhysRevC.70.024605
Citations: PlumX Metrics


2003GO30      Nucl.Phys. A722, 479c (2003)

I.I.Gontchar, D.J.Hinde, M.Dasgupta, J.O.Newton

Surface diffuseness of nuclear potential from heavy-ion fusion reactions

NUCLEAR REACTIONS 208Pb(16O, X), (28Si, X), E ≈ threshold; calculated fusion σ, role of surface diffuseness. Semi-microscopic double folding model, comparison with data.

doi: 10.1016/S0375-9474(03)01412-X
Citations: PlumX Metrics


2002BU08      Phys.Rev. C65, 044606 (2002); Erratum Phys.Rev. C65, 069904 (2002)

R.D.Butt, M.Dasgupta, I.Gontchar, D.J.Hinde, A.Mukherjee, A.C.Berriman, C.R.Morton, J.O.Newton, A.E.Stuchbery, J.P.Lestone

Effects on Finite Ground-State Spin on Fission Fragment Angular Distributions following Collisions with Spherical or Deformed Nuclei

NUCLEAR REACTIONS 209Bi(16O, F), E(cm) ≈ 76 MeV; 232Th(10B, F), E(cm) ≈ 46 MeV; 176Lu(31P, F), E(cm) ≈ 122 MeV; 178,178mHf(28Si, X), E ≈ 116 MeV; calculated fission fragments angular distributions, dependence on target spin.

doi: 10.1103/PhysRevC.65.044606
Citations: PlumX Metrics


2002BU27      Phys.Rev. C66, 044601 (2002)

R.D.Butt, D.J.Hinde, M.Dasgupta, A.C.Berriman, A.Mukherjee, C.R.Morton, J.O.Newton

Measurement of the effect of large deformation-aligned ground-state spin on fission fragment anisotropies

NUCLEAR REACTIONS 178Hf(28Si, X), (29Si, X), E ≈ 124-161 MeV; 175,176Lu(31P, X), E ≈ 135-165 MeV; measured fission and evaporation residue σ, fission fragment angular distributions, anisotropies; deduced effect of ground-state spin alignment. Comparisons with model predictions.

doi: 10.1103/PhysRevC.66.044601
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0813.


2002DA23      Phys.Rev. C66, 041602 (2002)

M.Dasgupta, D.J.Hinde, K.Hagino, S.B.Moraes, P.R.S.Gomes, R.M.Anjos, R.D.Butt, A.C.Berriman, N.Carlin, C.R.Morton, J.O.Newton, A.Szanto de Toledo

Fusion and breakup in the reactions of 6Li and 7Li nuclei with 209Bi

NUCLEAR REACTIONS 209Bi(6Li, X), (7Li, X), E(cm)=25-50 MeV; measured fusion, incomplete fusion, and fission excitation functions; deduced reaction mechanism features. Classical trajectory model.

doi: 10.1103/PhysRevC.66.041602
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0590.


2002HI04      Eur.Phys.J. A 13, 149 (2002)

D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, C.R.Morton, A.Mukherjee, J.O.Newton

Influence of Entrance Channel Properties on Heavy-Ion Reaction Dynamics

NUCLEAR REACTIONS 208Pb, 232Th(32S, X), 208Pb(19F, X), 168Er(34S, X), E(cm)=80-180 MeV; 209Bi(7Li, X), 208Pb(9Be, X), E(cm)=20-50 MeV; analyzed fusion σ, barrier distributions, entrance channel effects.

doi: 10.1007/s10050-002-8734-0
Citations: PlumX Metrics


2002HI25      J.Nucl.Radiochem.Sci. 3, No 1, 31 (2002)

D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, I.I.Gontchar, C.R.Morton, A.Mukherjee, J.O.Newton

Role of Entrance-channel Dynamics in Heavy Element Synthesis

NUCLEAR REACTIONS 238U(16O, X), E(cm) ≈ 70-100 MeV; 208Pb, 232Th(32S, X), E(cm) ≈ 130-170 MeV; measured barrier distributions, fission fragment mass distributions. 204Pb(12C, xn), 197Au(19F, xn), 186W(30Si, xn), E* ≈ 20-90 MeV; measured fusion, fission, evaporation residue σ; deduced entrance channel effects.


2002MU17      Phys.Rev. C66, 034607 (2002)

A.Mukherjee, M.Dasgupta, D.J.Hinde, K.Hagino, J.R.Leigh, J.C.Mein, C.R.Morton, J.O.Newton, H.Timmers

Dominance of Collective Over Proton Transfer Couplings in the Fusion of 32S and 34S with 89Y

NUCLEAR REACTIONS 89Y(32S, X), (34S, X), E=99-126 MeV; measured fusion σ; deduced barrier distributions. Coupled-channels analysis.

doi: 10.1103/PhysRevC.66.034607
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0588.


2001BE55      Nature(London) 413, 144 (2001)

A.C.Berriman, D.J.Hinde, M.Dasgupta, C.R.Morton, R.D.Butt, J.O.Newton

Unexpected Inhibition of Fusion in Nucleus-Nucleus Collisions

NUCLEAR REACTIONS 204Pb(12C, X), 197Au(19F, X), 186W(30Si, X), E* ≈ 25-90 MeV; measured fission, evaporation residue σ; deduced quasi-fission process, inhibition of fusion. Comparison with model predictions.

doi: 10.1038/35093069
Citations: PlumX Metrics


2001HI04      Nucl.Phys. A685, 72c (2001)

D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, C.R.Morton, J.O.Newton

Dynamical Interplay of Fusion and Fission in Low Energy Nucleus-Nucleus Collisions

NUCLEAR REACTIONS 208Pb(19F, X), 182W(16O, X), 208Pb, 232Th(32S, X), 168Er(34S, X), E(cm) ≈ 65-180 MeV; analyzed fusion σ, barrier distributions, anisotropies; deduced deformation effects.

doi: 10.1016/S0375-9474(01)00530-9
Citations: PlumX Metrics


2001MO27      Phys.Rev. C64, 034604 (2001)

C.R.Morton, A.C.Berriman, R.D.Butt, M.Dasgupta, D.J.Hinde, A.Godley, J.O.Newton, K.Hagino

Influence of Higher-Order Deformations in the 34S + 168Er Fusion Reactions

NUCLEAR REACTIONS 168Er(34S, X), E(cm)=110-140 MeV; analyzed fusion, fission σ, fusion barrier distribution; deduced role of hexacontatetrapole deformation. Coupled-channels approach, comparison with macroscopic-microscopic model prediction.

doi: 10.1103/PhysRevC.64.034604
Citations: PlumX Metrics


2001MU34      Pramana 57, 195 (2001)

A.Mukherjee, M.Dasgupta, D.J.Hinde, C.R.Morton, A.C.Berriman, R.D.Butt, J.O.Newton, H.Timmers

Fusion Around the Barrier for 7Li + 12C

NUCLEAR REACTIONS 12C(7Li, X), E=13-30 MeV; 12C(12C, X), E=15-20 MeV; measured fusion σ. Comparison with previous results, model predictions.

doi: 10.1007/s12043-001-0174-x
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6167.


2001NE14      Phys.Rev. C64, 064608 (2001)

J.O.Newton, C.R.Morton, M.Dasgupta, J.R.Leigh, J.C.Mein, D.J.Hinde, H.Timmers, K.Hagino

Experimental Barrier Distributions for the Fusion of 12C, 16O, 28Si, and 35Cl with 92Zr and Coupled-Channel Analyses

NUCLEAR REACTIONS 92Zr(12C, X), E=31-50 MeV; 92Zr(16O, X), E=44-80 MeV; 92Zr(28Si, X), E=86-115 MeV; 92Zr(35Cl, X), E=107-135 MeV; measured fusion σ; deduced barrier distributions. Comparisons with coupled channels calculations.

doi: 10.1103/PhysRevC.64.064608
Citations: PlumX Metrics


2000HI16      Phys.Rev. C62, 024615 (2000)

D.J.Hinde, W.Pan, A.C.Berriman, R.D.Butt, M.Dasgupta, C.R.Morton, J.O.Newton

Loss of Memory of Target Nucleus Deformation Axis in Heavy-Ion Fusion-Fission

NUCLEAR REACTIONS 182W(16O, X), E=72-90 MeV; measured fission fragments energies, angular distributions, fusion σ, fission probability; deduced agreement with statistical model.

doi: 10.1103/PhysRevC.62.024615
Citations: PlumX Metrics


2000MO13      Phys.Lett. 481B, 160 (2000)

C.R.Morton, D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, A.Godley, J.O.Newton

Memory of Entrance-Channel Deformation for Fast-Fission

NUCLEAR REACTIONS 168Er(34S, X), E(cm)=112-142 MeV; measured fusion σ, fission fragment anisotropy; 208Pb(19F, X), E(cm)=74-100 MeV; analyzed fusion σ, fission fragment anisotropy; deduced barrier distributions, role of entrance channel deformation. Comparison with model predictions.

doi: 10.1016/S0370-2693(00)00470-6
Citations: PlumX Metrics


2000MO20      Phys.Rev. C62, 024607 (2000)

C.R.Morton, A.C.Berriman, R.D.Butt, M.Dasgupta, A.Godley, D.J.Hinde, J.O.Newton

Memory of the Entrance-Channel K Distribution Observed in Fission at High Angular Momentum

NUCLEAR REACTIONS 168Er(34S, X), E=134-196 MeV; measured fission, fusion, evaporation residue σ, fission fragments angular distributions, anisotropies; deduced entrance channel effect.

doi: 10.1103/PhysRevC.62.024607
Citations: PlumX Metrics


1999DA07      Phys.Rev.Lett. 82, 1395 (1999)

M.Dasgupta, D.J.Hinde, R.D.Butt, R.M.Anjos, A.C.Berriman, N.Carlin, P.R.S.Gomes, C.R.Morton, J.O.Newton, A.Szanto de Toledo, K.Hagino

Fusion Versus Breakup: Observation of large fusion suppression for 9Be + 208Pb

NUCLEAR REACTIONS 208Pb(9Be, X), E=35-51 MeV; measured complete, incomplete fusion σ; deduced projectile breakup effects.

doi: 10.1103/PhysRevLett.82.1395
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0591.


1999DA26      Pramana 53, 513 (1999)

M.Dasgupta, D.J.Hinde, R.D.Butt, A.C.Berriman, C.R.Morton, J.O.Newton, K.Hagino

Exploiting Barrier Distributions to Investigate Breakup Effects in the Fusion of 9Be + 208Pb

NUCLEAR REACTIONS 208Pb(9Be, F), (9Be, 2n), (9Be, 3n), (9Be, 4n), (9Be, 5n), (9Be, nα), (9Be, 2nα), (9Be, 3nα), E(cm)=35-51 MeV; measured σ; deduced complete and incomplete fusion excitation functions, barrier distributions, breakup effects.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0719.


1999HI07      Phys.Rev. C60, 054602 (1999)

D.J.Hinde, A.C.Berriman, M.Dasgupta, J.R.Leigh, J.C.Mein, C.R.Morton, J.O.Newton

Limiting Angular Momentum for Statistical Model Description of Fission

NUCLEAR REACTIONS 208Pb(19F, X), E=82-135 MeV; measured fission, evaporation residue σ, fission fragment angular distributions, anisotropies; deduced fusion barrier distribution. Comparison with statistical model calculations.

doi: 10.1103/PhysRevC.60.054602
Citations: PlumX Metrics


1999HI11      Nucl.Phys. (Supplement) A654, 864c (1999)

D.J.Hinde, M.Dasgupta, C.R.Morton, A.C.Berriman, R.D.Butt, J.O.Newton

Insights into Nuclear Reactions Through Fusion Barrier Distribution Measurements

NUCLEAR REACTIONS 232Th(32S, X), E(cm)=130-170 MeV; 208Pb(9Be, X), E(cm)=30-50 MeV; measured fusion σ, fission fragment mass distributions; deduced fusion barrier distribution, reaction mechanism features.

doi: 10.1016/S0375-9474(00)88562-0
Citations: PlumX Metrics


1999MO31      Phys.Rev. C60, 044608 (1999)

C.R.Morton, A.C.Berriman, M.Dasgupta, D.J.Hinde, J.O.Newton, K.Hagino, I.J.Thompson

Coupled-Channels Analysis of the 16O + 208Pb Fusion Barrier Distribution

NUCLEAR REACTIONS 208Pb(16O, X), E=75-118 MeV; measured fission, fusion σ; deduced fusion barrier distributions. Coupled channels analysis.

doi: 10.1103/PhysRevC.60.044608
Citations: PlumX Metrics


1998HI20      Phys.Rev.Lett. 81, 4777 (1998)

D.J.Hinde, M.Dasgupta, J.R.Leigh, D.G.Marinaro, J.O.Newton

Comment on ' Anomalous Peaklike Structure in the Fission Fragment Anisotropies at Sub-Barrier Energies in 11B, 12C, 16O, 19F + 232Th Reactions '

NUCLEAR REACTIONS 232Th(19F, X), E not given; measured fission fragment anisotropies; deduced transfer fission, compound nucleus fission components.

doi: 10.1103/PhysRevLett.81.4777
Citations: PlumX Metrics


1997DA22      J.Phys.(London) G23, 1491 (1997)

M.Dasgupta, K.Hagino, C.R.Morton, D.J.Hinde, J.R.Leigh, N.Takigawa, H.Timmers, J.O.Newton

Evidence of Double Phonon Excitations in the Fusion of 16O + 208Pb

NUCLEAR REACTIONS, ICPND 208Pb(16O, X), E(cm)=68-83 MeV; measured fusion σ, barrier distribution; deduced coupling to double-phonon surface vibrations role in fusion dynamics.

doi: 10.1088/0954-3899/23/10/041
Citations: PlumX Metrics


1997KU31      Z.Phys. A359, 263 (1997)

S.Yu.Kun, D.J.Hinde, M.Dasgupta, J.R.Leigh, J.C.Mein, C.R.Morton, J.O.Newton, B.A.Robson, H.Timmers, A.V.Vagov

Correlated Oscillations in the Excitation Functions of Deep-Inelastic Collisions: Evidence for nuclear pulsars ( Question )

NUCLEAR REACTIONS 89Y(19F, X), E=135-140 MeV; measured projectile-like fragment yields; deduced energy autocorrelation functions oscillations. Dissipative reactions, quantum chaos.

doi: 10.1007/s002180050401
Citations: PlumX Metrics


1997ME03      Phys.Rev. C55, R995 (1997)

J.C.Mein, D.J.Hinde, M.Dasgupta, J.R.Leigh, J.O.Newton, H.Timmers

Precise Fission Fragment Anisotropies for the 12C + 232Th Reaction: Supporting the nuclear orientation dependence of quasifission

NUCLEAR REACTIONS 232Th(12C, F), E=57-75 MeV; measured σ(fragment θ), fission fragment anisotropies; deduced deformed actinide nucleus orientation role in quasifission.

doi: 10.1103/PhysRevC.55.R995
Citations: PlumX Metrics


1997TI06      J.Phys.(London) G23, 1175 (1997)

H.Timmers, J.R.Leigh, N.Rowley, A.M.Stefanini, D.Ackermann, S.Beghini, L.Corradi, M.Dasgupta, J.H.He, D.J.Hinde, J.C.Mein, G.Montagnoli, C.R.Morton, J.O.Newton, F.Scarlassara, G.F.Segato

Barrier Distributions and Scattering

NUCLEAR REACTIONS 144,154Sm(16O, X), 96,90Zr(40Ca, X), 208Pb(16O, X), (32S, X), E not given; analyzed fusion barrier distribution data; deduced residual reaction channel role.

doi: 10.1088/0954-3899/23/10/004
Citations: PlumX Metrics


1996HI02      Phys.Rev. C53, 1290 (1996)

D.J.Hinde, M.Dasgupta, J.R.Leigh, J.C.Mein, C.R.Morton, J.O.Newton, H.Timmers

Conclusive Evidence for the Influence of Nuclear Orientation on Quasifission

NUCLEAR REACTIONS 238U(16O, F), E=76-112 MeV; measured fission fragment anisotropies, mass distributions; deduced nuclear orientation role in quasifission.

doi: 10.1103/PhysRevC.53.1290
Citations: PlumX Metrics


1996RO05      Phys.Lett. 373B, 23 (1996)

N.Rowley, H.Timmers, J.R.Leigh, M.Dasgupta, D.J.Hinde, J.C.Mein, C.R.Morton, J.O.Newton

Barrier Distributions from Elastic Scattering

NUCLEAR REACTIONS 144Sm(16O, 16O), E=55-75 MeV; 154Sm(16O, 16O), E=53-75 MeV; 186W(16O, 16O), E=61-85 MeV; 208Pb(16O, 16O), E=69-93 MeV; measured large angle potential barrier distribution functions; deduced weaker direct-reaction channels coupling evidence.

doi: 10.1016/0370-2693(96)00118-9
Citations: PlumX Metrics


1996WU07      Nucl.Phys. A607, 178 (1996)

C.Y.Wu, D.Cline, T.Czosnyka, A.Backlin, C.Baktash, R.M.Diamond, G.D.Dracoulis, L.Hasselgren, H.Kluge, B.Kotlinski, J.R.Leigh, J.O.Newton, W.R.Phillips, S.H.Sie, J.Srebrny, F.S.Stephens

Quadrupole Collectivity and Shapes of Os-Pt Nuclei

NUCLEAR REACTIONS 186,188,190,192Os, 194Pt(40Ca, 40Ca'), (58Ni, 58Ni'), (136Xe, 136Xe'), (208Pb, 208Pb'), E=3.3-4.8 MeV/nucleon; measured Eγ, Iγ following Coulomb excitation. 186,188,190,192Os, 194Pt deduced levels, J, π, E2, M1 matrix elements.

doi: 10.1016/0375-9474(96)00181-9
Citations: PlumX Metrics


1995HI05      Nucl.Phys. A583, 135c (1995); Erratum Nucl.Phys. A587, 853 (1995)

D.J.Hinde, C.R.Morton, M.Dasgupta, J.R.Leigh, J.P.Lestone, R.C.Lemmon, J.C.Mein, J.O.Newton, H.Timmers, N.Rowley, A.T.Kruppa

Fusion Barrier Distributions and Fission Anisotropies

NUCLEAR REACTIONS, ICPND 144Sm(16O, X), (17O, X), E(cm) ≈ 55-70 MeV; analyzed fusion σ(E). 208Pb(16O, F), (16O, X), E(cm) ≈ 70-85 MeV; measured fission anisotropies, fusion barrier distribution.

doi: 10.1016/0375-9474(94)00647-6
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1995HI07      Phys.Rev.Lett. 74, 1295 (1995)

D.J.Hinde, M.Dasgupta, J.R.Leigh, J.P.Lestone, J.C.Mein, C.R.Morton, J.O.Newton, H.Timmers

Fusion-Fission Versus Quasifission: Effect of nuclear orientation

NUCLEAR REACTIONS 238U(16O, F), E=76-104 MeV; measured fission fragment σ(θ) vs E; deduced quasifission evidence. 238U deduced deformation features role.

doi: 10.1103/PhysRevLett.74.1295
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1995LE34      Phys.Rev. C52, 3151 (1995)

J.R.Leigh, M.Dasgupta, D.J.Hinde, J.C.Mein, C.R.Morton, R.C.Lemmon, J.P.Lestone, J.O.Newton, H.Timmers, J.X.Wei, N.Rowley

Barrier Distributions from the Fusion of Oxygen Ions with 144,148,154Sm and 186W

NUCLEAR REACTIONS, ICPND 186W, 144,148,154Sm(16O, X), 144Sm(17O, X), E=50-110 MeV; measured fusion σ(E), σ(evaporation residue, θ) vs E; deduced fusion barrier distributions. Enriched targets. Coupled-channels analysis.

doi: 10.1103/PhysRevC.52.3151
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1995MO22      Phys.Rev. C52, 243 (1995)

C.R.Morton, D.J.Hinde, J.R.Leigh, J.P.Lestone, M.Dasgupta, J.C.Mein, J.O.Newton, H.Timmers

Resolution of the Anomalous Fission Fragment Anisotropies for the 16O + 208Pb Reaction

NUCLEAR REACTIONS, ICPND 208Pb(16O, X), (16O, F), E(cm)=71-85 MeV; measured evaporation residue, fission σ, fission fragment anisotropies, Eα, Iα; deduced fusion barrier distribution, σ(E). Transition state model.

doi: 10.1103/PhysRevC.52.243
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1995TI02      Nucl.Phys. A584, 190 (1995)

H.Timmers, J.R.Leigh, M.Dasgupta, D.J.Hinde, R.C.Lemmon, J.C.Mein, C.R.Morton, J.O.Newton, N.Rowley

Probing Fusion Barrier Distributions with Quasi-Elastic Scattering

NUCLEAR REACTIONS 92Zr(16O, X), E=35-70 MeV; 144Sm(16O, X), E=55-75 MeV; 154Sm(16O, X), E=53-75 MeV; 186W(16O, X), E=61-85 MeV; measured quasielastic, elastic, inelastic, transfer σ(θ)/σ(Rutherford), sub-barrier fusion; deduced fusion barrier distribution. Coupled-channels calculations, ECIS.

doi: 10.1016/0375-9474(94)00521-N
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1994MO24      Phys.Rev.Lett. 72, 4074 (1994)

C.R.Morton, M.Dasgupta, D.J.Hinde, J.R.Leigh, R.C.Lemmon, J.P.Lestone, J.C.Mein, J.O.Newton, H.Timmers, N.Rowley, A.T.Kruppa

Clear Signatures of Specific Inelastic and Transfer Channels in the Distribution of Fusion Barriers

NUCLEAR REACTIONS, ICPND 144Sm(16O, X), (17O, X), E=61-100 MeV; measured fusion σ(E); deduced fusion barrier distribution structure, specific transfer channels signature.

doi: 10.1103/PhysRevLett.72.4074
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1993LE01      Phys.Rev. C47, R437 (1993)

J.R.Leigh, N.Rowley, R.C.Lemmon, D.J.Hinde, J.O.Newton, J.X.Wei, J.C.Mein, C.R.Morton, S.Kuyucak, A.T.Kruppa

Reconciling Deformation Parameters from Fusion with Those from Coulomb Excitation

NUCLEAR REACTIONS 154Sm(16O, X), E(cm) ≈ 55-68 MeV; analyzed fusion data. 154Sm deduced deformation parameters consistency with Coulomb excitation fits.

doi: 10.1103/PhysRevC.47.R437
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1993LE11      Nucl.Phys. A559, 277 (1993)

J.P.Lestone, J.R.Leigh, J.O.Newton, D.J.Hinde, J.X.Wei, J.X.Chen, S.Elfstrom, M.Zielinska-Pfabe

Pre-Scission Charged-Particle Multiplicities following the Reactions 164,167,170Er + 28Si

NUCLEAR REACTIONS 164,167,170Er(28Si, F), E=140-185 MeV; measured fission (fragment)p-, (fragement)α-coin, σ(fragment, θ, E(α, p)); deduced pre-, post-fission proton and alpha multiplicities. 192,195,198Pb deduced statistical model level-density parameters, dynamical effects.

doi: 10.1016/0375-9474(93)90192-Z
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1993LE17      Phys.Lett. 316B, 32 (1993)

R.C.Lemmon, J.R.Leigh, J.X.Wei, C.R.Morton, D.J.Hinde, J.O.Newton, J.C.Mein, M.Dasgupta, N.Rowley

Strong Dependence of Sub-Barrier Fusion on the Nuclear Hexadecapole Deformation

NUCLEAR REACTIONS, ICPND 186W(16O, X), E=68-90 MeV; measured fusion σ(E). 154Sm(16O, X), E not given; analyzed data; deduced hexadecapole deformation role. 186W deduced deformation parameters.

doi: 10.1016/0370-2693(93)90653-Y
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1992RO03      Phys.Rev. C45, 719 (1992)

H.Rossner, D.J.Hinde, J.R.Leigh, J.P.Lestone, J.O.Newton, J.X.Wei, S.Elfstrom

Influence of Pre-Fission Particle Emission on Fragment Angular Distributions Studied for 208Pb(16O, f)

NUCLEAR REACTIONS 208Pb(16O, F), E=80-130 MeV; measured σ(fragment θ, En); deduced pre-, post-scission multiplicities. 224Th deduced fission yield vs decay time, temperature.

doi: 10.1103/PhysRevC.45.719
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1991HI08      Phys.Lett. 258B, 35 (1991)

D.J.Hinde, J.R.Leigh, J.P.Lestone, J.O.Newton, S.Elfstrom, J.X.Wei, M.Zielinska-Pfabe

The Effect of the Angular Momentum Dependence of the Fission Probability on the Determination of Fission Time Scales from Fission Excitation Functions

NUCLEAR REACTIONS 197Au(16O, F), 181Ta(19F, F), E not given; calculated fission probability vs excitation energy; deduced angular momentum role in fission time scales determination.

doi: 10.1016/0370-2693(91)91204-9
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1991LE21      Phys.Rev.Lett. 67, 1078 (1991)

J.P.Lestone, J.R.Leigh, J.O.Newton, D.J.Hinde, J.X.Wei, J.X.Chen, S.Elfstrom, D.G.Popescu

Fission Time Scales from Prescisson Charged-Particle Multiplicities

NUCLEAR REACTIONS 164,167,170Er(28Si, X), E=140-185 MeV; measured proton, α-spectra, multiplicities; deduced reaction mechanism. 192,195,198Pb deduced fission characteristics.

doi: 10.1103/PhysRevLett.67.1078
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1991WE18      Phys.Rev.Lett. 67, 3368 (1991)

J.X.Wei, J.R.Leigh, D.J.Hinde, J.O.Newton, R.C.Lemmon, S.Elfstrom, J.X.Chen, N.Rowley

Experimental Determination of the Fusion-Barrier Distribution for the 154Sm + 16O Reaction

NUCLEAR REACTIONS 154Sm(16O, X), E=54-110 MeV; measured σ(evaporation residue θ); deduced fusion σ(E), barrier distributions.

doi: 10.1103/PhysRevLett.67.3368
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1991WE19      Nucl.Instrum.Methods Phys.Res. A306, 557 (1991)

J.X.Wei, J.R.Leigh, D.C.Weisser, J.O.Newton, S.Elfstrom, J.P.Lestone, J.X.Chen, D.G.Popescu, D.J.Hinde

A Compact Velocity Filter for Evaporation Residue Measurements

NUCLEAR REACTIONS 130Te(28Si, X), E=100-160 MeV; 170Er(16O, X), E=110 MeV; 176Yb(16O, X), E=100 MeV; 186W(16O, X), E=70 MeV; 154Sm(16O, X), E=60 MeV; measured σ(evaporation residue θ). Velocity filter.

doi: 10.1016/0168-9002(91)90052-R
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1990LE07      Nucl.Phys. A509, 178 (1990)

J.P.Lestone, J.R.Leigh, J.O.Newton, J.X.Wei

Fission Fragment Angular Distributions following Transfer Reactions for 232Th + 16O

NUCLEAR REACTIONS 232Th(16O, F), E=80-92 MeV; measured fission fragment σ(E, θ), (fragment)(particle)-coin, σ(fragment φ, θ) following transfer, X=C, N.

doi: 10.1016/0375-9474(90)90380-5
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1990NE09      Phys.Rev. C42, 1772 (1990)

J.O.Newton, D.G.Popescu, J.R.Leigh

Inclusion of Temperature Dependence of Fission Barriers in Statistical Model Calculations

NUCLEAR REACTIONS, ICPND 181Ta, 159Tb(19F, F), E ≈ 80-120 MeV; calculated fission σ(E). Statistical model, fission barrier temperature dependence from data.

NUCLEAR STRUCTURE A=109-240; calculated zero temperature fission barriers.

doi: 10.1103/PhysRevC.42.1772
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1990NE13      Fiz.Elem.Chastits At.Yadra 21, 821 (1990); Sov.J.Part.Nucl. 21, 349 (1990)

J.O.Newton

Nuclear Fission Induced by Heavy Ions

NUCLEAR STRUCTURE A ≤ 251; compiled, reviewed fission process. Nuclei produced in heavy-ion reactions.


1988LE04      J.Phys.(London) G14, L55 (1988)

J.R.Leigh, J.J.M.Bokhorst, D.J.Hinde, J.O.Newton

Observation of Sub-Barrier Fusion Enhancement Due to Negative Hexadecapole Deformations ( Question )

NUCLEAR REACTIONS, ICPND 176,180Hf, 182,184,186W(16O, X), E=70-90 MeV; measured fusion σ(E). 150,152,154Sm(16O, X), 181Ta, 159Tb, 139La, 169Tm(19F, X), E not given; calculated fusion σ(E). 176,180Hf, 182,184,186W deduced hexadecapole deformation nature.

doi: 10.1088/0305-4616/14/4/002
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1988NE03      Nucl.Phys. A483, 126 (1988)

J.O.Newton, D.J.Hinde, R.J.Charity, J.R.Leigh, J.J.M.Bokhorst, A.Chatterjee, G.S.Foote, S.Ogaza

Measurement and Statistical Model Analysis of Pre-Fission Neutron Multiplicities

NUCLEAR REACTIONS 150Sm(18O, F), E=108-122 MeV; 159Tb(19F, F), E=110-124 MeV; 169Tm(19F, F), E=105-135 MeV; 164Er(28Si, F), E=170 MeV; 170Er(28Si, F), E=135-165 MeV; 181Ta(19F, F), E=95-135 MeV; 170Er(30Si, F), E=160 MeV; 192Os(18O, F), 197Au(16O, F), E=95-124 MeV; 232Th(19F, F), E=105-138 MeV; measured fission (fragment)n-coin, σ(fragment θ, E(n)); deduced pre-, post-fission neutron multiplicities. 168Yb, 178W, 188Pt, 192,198,200Pb, 210Po, 213Fr, 251Es deduced statistical model parameters, dynamical, temperature effects.

doi: 10.1016/0375-9474(88)90068-1
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1987HI11      Nucl.Phys. A472, 318 (1987)

D.J.Hinde, J.R.Leigh, J.J.M.Bokhorst, J.O.Newton, R.L.Walsh, J.W.Boldeman

Mass-Split Dependence of the Pre- and Post-Scission Neutron Multiplicities for Fission of 251Es

NUCLEAR REACTIONS 232Th(19F, F), E=105, 120 MeV; measured fission (fragment)n-coin, σ(fragment θ, mass, E(n)); deduced transfer-induced fission, pre-, post-fission neutron multiplicities. 251Es deduced fission characteristics. Random neck rupture model, quasifission.

doi: 10.1016/0375-9474(87)90213-2
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1986CH30      Nucl.Phys. A457, 441 (1986)

R.J.Charity, J.R.Leigh, J.J.M.Bokhorst, A.Chatterjee, G.S.Foote, D.J.Hinde, J.O.Newton, S.Ogaza, D.Ward

Heavy-Ion Induced Fusion-Fission Systematics and the Effect of the Compound-Nucleus Spin Distribution on Fission-Barrier Determination

NUCLEAR REACTIONS, ICPND 139La, 159Tb, 169Tm(19F, X), (19F, F), E=70-129 MeV; 150Sm, 192Os(18O, X), (18O, F), E=65-124 MeV; measured fission, evaporation σ(fragment θ), σ(E). Statistical model.

doi: 10.1016/0375-9474(86)90388-X
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1986HI01      Nucl.Phys. A452, 550 (1986)

D.J.Hinde, R.J.Charity, G.S.Foote, J.R.Leigh, J.O.Newton, S.Ogaza, A.Chatterjee

Neutron Multiplicities in Heavy-Ion-Induced Fission: Timescale of fusion-fission

NUCLEAR REACTIONS 150Sm(18O, F), E=108-122 MeV; 164Er(28Si, F), E=170 MeV; 170Er(28Si, F), E=135-165 MeV; 170Er(30Si, F), E=160 MeV; 181Ta(19F, F), E=95-135 MeV; 192Os(18O, F), 197Au(16O, F), E=95-124 MeV; 232Th(19F, F), E=105-138 MeV; measured (fragment)n-coin, σ(fragment θ, En); deduced pre-, post-fission neutron multiplicities. 168Yb, 192,198,200Pb, 210Po, 213Fr, 251Es deduced fission dynamics. Statistical model.

doi: 10.1016/0375-9474(86)90214-9
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1985LE18      Phys.Lett. 159B, 9 (1985)

J.R.Leigh, W.R.Phillips, J.O.Newton, G.S.Foote, D.J.Hinde, G.D.Dracoulis

Angular Momentum Partition in Heavy Ion Induced Fission and the Effects of Shells on Gamma-Ray Multiplicities

NUCLEAR REACTIONS 181Ta(32S, F), E=150 MeV; 197Au, 181Ta, 170Er, 232Th(19F, F), E=115 MeV; 197Au(19F, F), E=100 MeV; measured γ multiplicity vs fission fragment mass asymmetry. 213Ac, 189Ir, 200Pb, 216Ra, 251Es deduced average fission (L).

doi: 10.1016/0370-2693(85)90109-1
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1984HI04      Phys.Rev.Lett. 52, 986 (1984)

D.J.Hinde, R.J.Charity, G.S.Foote, J.R.Leigh, J.O.Newton, S.Ogaza, A.Chatterjee

Neutron Emission from Fission Fragments during Acceleration

NUCLEAR REACTIONS 232Th(19F, F), E=124 MeV; measured fission fragment(n)-coin vs neutron velocity, neutron multiplicity vs excitation, fragment(n)(θ); deduced neutron emission mechanism.

doi: 10.1103/PhysRevLett.52.986
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1984SC23      Phys.Lett. 142B, 253 (1984)

C.Schuck, N.Bendjaballah, R.M.Diamond, Y.Ellis-Akovali, K.H.Lindenberger, J.O.Newton, F.S.Stephens, J.D.Garrett, B.Herskind

Evidence for Reduced Neutron Pairing Correlations in 165Yb

NUCLEAR REACTIONS 130Te(40Ar, 5n), 150Nd(20Ne, 5n), E not given; measured γγ-coin. 165Yb deduced levels, J, π, rotational bands, γ-branching. Cranking shell model comparison.

doi: 10.1016/0370-2693(84)91193-6
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1983HI02      Nucl.Phys. A398, 308 (1983)

D.J.Hinde, J.O.Newton, J.R.Leigh, R.J.Charity

Fission Barriers of Pb Nuclei at High Angular Momentum

NUCLEAR REACTIONS 170Er(28Si, X), (30Si, X), (28Si, F), (30Si, F), E=125-180 MeV; 164,167Er(28Si, X), (28Si, F), E=130-180 MeV; measured fission σ(fragment θ), σ(evaporation residue θ); deduced total fission probabilities. Statistical model.

doi: 10.1016/0375-9474(83)90489-X
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1983WA15      Nucl.Phys. A403, 189 (1983)

D.Ward, R.J.Charity, D.J.Hinde, J.R.Leigh, J.O.Newton

Measurement of Pre-Fission Neutrons from 200Pb; Further limits to the statistical fission parameters

NUCLEAR REACTIONS 181Ta(19F, X)(19F, F), E=105, 115, 125 MeV; measured fission (fragment)n(θ), pre-fission, post-fission neutron multiplicity; deduced saddle point equilibrium deformation level density parameters.

doi: 10.1016/0375-9474(83)90196-3
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1983WA20      Nucl.Phys. A406, 591 (1983)

D.Ward, G.D.Dracoulis, J.R.Leigh, R.J.Charity, D.J.Hinde, J.O.Newton

High-Spin States in 222Th

NUCLEAR REACTIONS, ICPND 208Pb(18O, 4n), E=85-102 MeV; measured Eγ, Iγ, γ(residue)-, γγ(residue)-coin, γ-multiplicity, relative σ(E). 222Th deduced levels, J, π, rotational band B(λ) ratios, average γ-multiplicity per cascade. Ge(Li), NaI(Tl) detectors.

doi: 10.1016/0375-9474(83)90379-2
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1982DR04      Phys.Rev.Lett. 49, 434 (1982)

J.E.Draper, J.O.Newton, L.G.Sobotka, K.H.Lindenberger, G.J.Wozniak, L.G.Moretto, F.S.Stephens, R.M.Diamond, R.J.McDonald

Dependence of the Giant Dipole Strength Function on Excitation Energy

NUCLEAR REACTIONS 181Ta(136Xe, X), E=1150 MeV; measured Eγ, Iγ, σ(fragment) vs E for projectile-like fragments; deduced GDR strength function energy depedence.

doi: 10.1103/PhysRevLett.49.434
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1982HI09      Nucl.Phys. A385, 109 (1982)

D.J.Hinde, J.R.Leigh, J.O.Newton, W.Galster, S.Sie

Fission and Evaporation Competition in 200Pb

NUCLEAR REACTIONS 181Ta(19F, X), (19F, F), E=80-125 MeV; 170Er(30Si, X), (30Si, F), E=125-170 MeV; measured σ(fragment E, θ). 200Pb deduced fission probability versus angular momentum. Statistical model fits.

doi: 10.1016/0375-9474(82)90492-4
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1982LE05      Phys.Rev.Lett. 48, 527 (1982)

J.R.Leigh, D.J.Hinde, J.O.Newton, W.Galster, S.H.Sie

Fission-Imposed Limits to the Angular Momentum Carried by Evaporation Residues from the Compound Nucleus 200Pb

NUCLEAR REACTIONS, Fission 181Ta(19F, X), (19F, F), E=80-126 MeV; 170Er(30Si, X), (30Si, F), E=125-168 MeV; measured σ(fission), σ(evaporation residue) vs E, θ; deduced σ(fusion, E). 200Pb deduced total fission probability vs (L). Bohr independence hypothesis, complete fusion.

doi: 10.1103/PhysRevLett.48.527
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1981NE03      Phys.Rev.Lett. 46, 1383 (1981)

J.O.Newton, B.Herskind, R.M.Diamond, E.L.Dines, J.E.Draper, K.H.Lindenberger, C.Schuck, S.Shih, F.S.Stephens

Observation of Giant Dipole Resonances Built on States of High Energy and Spin

NUCLEAR REACTIONS 82Se, 110Pd, 124Sn(40Ar, X), E=170 MeV; measured Eγ. 122Te, 150Gd, 164Er deduced GDR based on high-spin states, Γ, Γγ. Statistical model, GDR strength function.

doi: 10.1103/PhysRevLett.46.1383
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1981SI01      Phys.Rev.Lett. 46, 405 (1981)

S.H.Sie, J.O.Newton, J.R.Leigh, R.M.Diamond

Multiplicity of the Statistical γ Rays following (16O, xn) Reactions

NUCLEAR REACTIONS 110Pd, 122Sn(16O, 4n), E=65, 83 MeV; 149Sm(16O, 3n), 150,154Sm(16O, 4n), E=73, 85 MeV; 166Er(α, 2n), E=27 MeV; measured statistical, total γ-multiplicity; deduced γ-multiplicity correlation. 166,162Yb, 134Ce, 122Xe deduced mean excitation energy, angular momentum input effects.

doi: 10.1103/PhysRevLett.46.405
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1981SI02      Nucl.Phys. A352, 279 (1981)

S.H.Sie, R.M.Diamond, J.O.Newton, J.R.Leigh

The Dipole Component in the Yrast Cascade and the Multiplicity of Statistical γ-Rays

NUCLEAR REACTIONS 149Sm(16O, 3n), 150Sm, 154Sm(16O, 4n), E=73, 85 MeV; 122Sn, 110Pd(16O, 4n), E=65, 83 MeV; measured σ(E, Eγ, θγ), γ-multiplicities, γγ-coin. 162,166Yb, 134Ce, 122Xe deduced γ-multipolarity, dipole component in yrast cascade. Enriched targets, model analysis.

doi: 10.1016/0375-9474(81)90381-X
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1981SI10      Nucl.Phys. A367, 176 (1981)

S.H.Sie, J.O.Newton, R.M.Diamond

Study of Continuum Gamma Rays following Low Angular Momentum Reactions

NUCLEAR REACTIONS 166Er(α, 2n), E=21, 27, 36 MeV; measured σ(E, Eγ, θ), γγ-coin, γ-multiplicities. 168Yb deduced γ-multipolarity, statistical, collective γ-decay competition. Enriched target. Model analysis.

doi: 10.1016/0375-9474(81)90512-1
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1980NE01      Nucl.Phys. A334, 499 (1980)

J.O.Newton, S.H.Sie

A Dipole Component in the Yrast Cascade and its Possible Interpretation

NUCLEAR REACTIONS 148Sm(16O, 3nγ), E=75 MeV; 149Sm(16O, 4nγ), E=88 MeV; 162Dy(16O, 4nγ), E=81 MeV; 163Dy(16O, 5nγ), E=96 MeV; 163Dy(16O, 4nγ), E=82 MeV; 164Dy(16O, 5nγ), E=98 MeV; measured σ(E; Eγ, θγ), nγ-coin. 161Yb, 174,175W deduced Iγ(Eγ, θγ, lmax), multiplicities, multipolarities, moments of inertia. Model analysis. Enriched targets.

doi: 10.1016/0375-9474(80)90614-4
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1979LE01      Phys.Rev.Lett. 42, 153 (1979)

J.R.Leigh, R.M.Diamond, A.Johnston, J.O.Newton, S.H.Sie

Fission Following Transfer to 232Th at Energies below the Coulomb Barrier

NUCLEAR REACTIONS 232Th(16O, X), E=75-95 MeV; 232Th(19F, X), E=85-95 MeV; measured σ(θ) for transfer-induced fission at sub-Coulomb energies.

doi: 10.1103/PhysRevLett.42.153
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1979SI03      Nucl.Phys. A313, 209 (1979)

R.S.Simon, R.M.Diamond, Y.El Masri, J.O.Newton, P.Sawa, F.S.Stephens

Shell Effects at High Spin in the γ-Continuum from Te Evaporation Residues

NUCLEAR REACTIONS 82Se(40Ar, xnγ), E=157, 170, 181 MeV; 110Pd(12C, xnγ), E=50, 75, 102 MeV; measured Eγ, γ-ray multiplicities. Enriched targets.

doi: 10.1016/0375-9474(79)90576-1
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1978NE01      Phys.Rev.Lett. 40, 625 (1978)

J.O.Newton, S.H.Sie, G.D.Dracoulis

Evidence for a Dipole Component in the Yrast Cascade

NUCLEAR REACTIONS 148Sm(16O, xnγ), E=75 MeV; 149Sm(16O, xnγ), E=88 MeV; 163Dy(16O, xnγ), E=82, 96 MeV; 164Dy(16O, xnγ), E=98 MeV; 162Dy(16O, xnγ), E=81 MeV; measured continuum γ spectrum shape, angular distribution. 174,175W, 161Yb deduced dipole component in yrast cascades.

doi: 10.1103/PhysRevLett.40.625
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1977BR38      J.Phys.(London) G3, 1565 (1977)

D.Branford, B.N.Nagorcka, J.O.Newton

Further Evidence for Resonance Anomalies in the 12C + 16O System

NUCLEAR REACTIONS 12C(16O, X), E=30-40 MeV; measured γ-spectra; deduced resonance anomalies.

doi: 10.1088/0305-4616/3/11/012
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1977BU14      Phys.Lett. 68B, 122 (1977)

P.A.Butler, I.Y.Lee, J.O.Newton, Y.El-Masri, M.M.Aleonard, P.Colombani, R.M.Diamond, F.S.Stephens, R.W.Lougheed, E.K.Hulet

Fission of 232Th, 238U, 244Pu, 248Cm Induced by Xe and Kr Ions at Coulomb Barrier Energies

NUCLEAR REACTIONS 232Th, 238U, 244Pu, 248Cm(86Kr, F), (136Xe, F), E ≈ Coulomb barrier; measured σ(θ).

doi: 10.1016/0370-2693(77)90181-2
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1977DR03      Nucl.Phys. A279, 251 (1977)

G.D.Dracoulis, S.M.Ferguson, J.O.Newton, M.G.Slocombe

Angular Momentum Distributions and Delayed Feeding in (d, 3n) Reactions to Deformed Nuclei

NUCLEAR REACTIONS 159Tb, 165Ho, 169Tm, 175Lu, 181Ta(d, 3nγ), E=18-24 MeV; measured σ(E), Iγ, γ(t); deduced delayed feeding T1/2. 155Dy, 164Er, 168Yb levels deduced T1/2. Natural targets.

doi: 10.1016/0375-9474(77)90227-5
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1977GL01      Phys.Rev.Lett. 38, 331 (1977)

P.Glassel, R.S.Simon, R.M.Diamond, R.C.Jared, I.Y.Lee, L.G.Moretto, J.O.Newton, R.Schmitt, F.S.Stephens

Angular-Momentum Transfer in Deep-Inelastic Processes

NUCLEAR REACTIONS Ag(20Ne, X), E=175 MeV; measured σ(Eγ, Z).

doi: 10.1103/PhysRevLett.38.331
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1977LE07      J.Phys.(London) G3, 519 (1977)

J.R.Leigh, G.D.Dracoulis, M.G.Slocombe, J.O.Newton

Band Structure in the N = 88 Nucleus 151Eu

NUCLEAR REACTIONS 150,152Sm(d, 3nγ), E=18-25 MeV; measured σ(E, Eγ, θ), γγ-coin, γ(t). 149,151Eu deduced levels, J, π. Coriolis coupling calculations.

doi: 10.1088/0305-4616/3/4/013
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1977LE10      Phys.Rev.Lett. 38, 1454 (1977)

I.Y.Lee, M.M.Aleonard, M.A.Deleplanque, Y.El-Masri, J.O.Newton, R.S.Simon, R.M.Diamond, F.S.Stephens

Second Discontinuity in the Yrast Levels of 158Er

NUCLEAR REACTIONS 122Sn(40Ar, 4nγ); measured Eγ, Iγ, γγ-coin. 158Er deduced yrast levels, backbending.

doi: 10.1103/PhysRevLett.38.1454
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1977LE15      Phys.Rev.Lett. 39, 684 (1977)

I.Y.Lee, D.Cline, P.A.Butler, R.M.Diamond, J.O.Newton, R.S.Simon, F.S.Stephens

Determination of γ Softness in 192,194,196Pt from Coulomb Excitation with 136Xe Projectiles

NUCLEAR REACTIONS 192,194,196Pt(136Xe, 136Xe), E=595, 620, 680 MeV; measured Coulomb excitation. 194Pt deduced levels, J, π.

doi: 10.1103/PhysRevLett.39.684
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1977NE02      Phys.Rev.Lett. 38, 810 (1977)

J.O.Newton, I.Y.Lee, R.S.Simon, M.M.Aleonard, Y.El Masri, F.S.Stephens, R.M.Diamond

Energy-Dependent Multiplicities of Continuum γ Rays

NUCLEAR REACTIONS 12C, 27Al, K, Cl, Ti, Fe, 68Zn, 82Se, 126,130Te(40Ar, X), E=119-185 MeV; measured γ-multiplicities. KCl target.

doi: 10.1103/PhysRevLett.38.810
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1977SI16      Nucl.Phys. A290, 253 (1977)

R.S.Simon, M.V.Banaschik, R.M.Diamond, J.O.Newton, F.S.Stephens

Experimental Study of Yb Nuclei at High Angular Momentum

NUCLEAR REACTIONS 150Sm(16O, xnγ), E=87 MeV; 126,130Te(40Ar, xnγ), E=157, 181 MeV; 80,82Se(86Kr, xnγ), E=306, 331 MeV; measured σ(E), Eγ, γ-ray multiplicities. 162Yb deduced moments of inertia. Enriched targets.

doi: 10.1016/0375-9474(77)90678-9
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1977SL01      Nucl.Phys. A275, 166 (1977)

M.G.Slocombe, J.O.Newton, G.D.Dracoulis

A Study of States in 201,203Tl Using the (d, 3nγ) Reaction: A New 9/2- Band

NUCLEAR REACTIONS 202,204Hg(d, 3nγ), E=18-25 MeV; measured Eγ, Iγ, σ(E;Eγ, θ(γ)), γγ-coin, nγ-coin, dγ-delay. 201,203Tl deduced levels, J, π, T1/2, δ. Enriched targets. Coriolis calculations.

doi: 10.1016/0375-9474(77)90282-2
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1975DR07      J.Phys.(London) G1, 853 (1975)

G.D.Dracoulis, J.R.Leigh, M.G.Slocombe, J.O.Newton

Rotational Bands in 153Eu

NUCLEAR REACTIONS 154Sm(d, 3nγ), E=18-25 MeV; measured σ(E, Eγ, θ), γγ-coin, nγ-coin, γ(t). 153Eu deduced levels, J, π, K, δ. Coriolis calculations. Enriched targets.

doi: 10.1088/0305-4616/1/8/008
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1975NE01      Phys.Rev.Lett. 34, 99 (1975)

J.O.Newton, J.C.Lisle, G.D.Dracoulis, J.R.Leigh, D.C.Weisser

Observation of the Yrast and Statistical Cascades in (Heavy-Ion, xnγ) Reactions

NUCLEAR REACTIONS 147,149Sm(16O, 3nγ), E=75 MeV; 150Sm(16O, 4nγ), E=88 MeV; 148Sm(16O, 4nγ), E=94 MeV; measured nγ-coin, Eγ(θ). 160,162Yb deduced yrast, statistical cascades.

doi: 10.1103/PhysRevLett.34.99
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1974BR41      J.Phys.(London) A7, 1193 (1974)

D.Branford, J.O.Newton, J.M.Robinson, B.N.Nagorcka

Possible Resonance Anomalies in the 16O + 12C Reaction

NUCLEAR REACTIONS 12C(16O, α), 16O(12C, α), E(cm) ≈ 10-20 MeV; measured σ(E, Eα); deduced reaction characteristics.

doi: 10.1088/0305-4470/7/10/012
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1974NE16      Nucl.Phys. A236, 225 (1974)

J.O.Newton, F.S.Stephens, R.M.Diamond

Rotational Bands in the Light Odd-Mass Tl Nuclei

RADIOACTIVITY 193,195,197Pb; measured Eγ, Iγ, E(ce), I(ce), T1/2(β)γγ-coin. 193,195,197Tl deduced levels, J, π, ICC, log ft. Ge(Li), Si(Li) detectors.

NUCLEAR REACTIONS 182W(14N, 5nγ), E=86-105 MeV; 181Ta(16O, 6nγ), E=109-122 MeV; 197Au(α, 8nγ), E=93-116 MeV; 184W(14N, 5nγ), E=82-89 MeV; 181Ta(16O, 4nγ), E=79-98 MeV; 181Ta(19F, 7n), E=110-130 MeV; 197Au(α, 6nγ), E=68-80 MeV; 188Os(11B, 4nγ), E=57 MeV; 186W(14N, 5nγ), E=85-93 MeV; 181Ta(19F, 5n), E=86-105 MeV; 185Re(14N, 4n), E=74 MeV; 197Au(α, 4nγ), E=42-59 MeV; 190Os(11B, 4nγ), E=57 MeV; 187Re(14N, 4n), E=74 MeV; 186W(16O, 5n), E=89 MeV; measured σ(E;E(ce), Eγ, θ(γ)), γγ-coin. 191,193,195,197Tl deduced levels, J, π, ICC, γ-mixing, oblate shape. Natural, enriched targets. Ge(Li), Si(Li) detectors.

doi: 10.1016/0375-9474(74)90229-2
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1973NE08      Nucl.Phys. A210, 19 (1973)

J.O.Newton, F.S.Stephens, R.M.Diamond

Feeding Times in (HI, xnγ) Reactions

NUCLEAR REACTIONS 150Sm(20Ne, 4n), E=93 MeV; 152,154Sm(20Ne, 4n), E=86 MeV; 154Sm(28Si, 4n), E=104 MeV; measured Eγ, Iγ, recoil-distance Doppler shift. 166,168,170Hf, 178Os deduced levels, feeding time. Enriched targets.

doi: 10.1016/0375-9474(73)90499-5
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1972LE04      Nucl.Phys. A183, 177 (1972)

J.R.Leigh, J.O.Newton, L.A.Ellis, M.C.Evans, M.J.Emmott

A Study of the Odd-A Rhenium Isotopes: 179Re and 177Re

NUCLEAR REACTIONS 172Yb(11B, 4n)E=52-60 MeV; 169Tm(12C, 4n)E=62-76 MeV; measured σ(E:Eγ, θ(γ)), γγ-coin. 177Re, 179Re deduced levels, J, π.

doi: 10.1016/0375-9474(72)90938-4
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1972NA14      Phys.Lett. 41B, 34 (1972)

B.N.Nagorcka, J.O.Newton

16O + 12C Quasimolecular State

doi: 10.1016/0370-2693(72)90361-9
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1971EV02      Phys.Lett. 34B, 609 (1971)

M.Evans, A.E.Ellis, J.R.Leigh, J.O.Newton

The 9/2- [514] State in 185Re

NUCLEAR REACTIONS 186W(d, 3nγ), E=12, 16, 19.6 MeV; measured Eγ, Iγ, dγ-delay. 185Re deduced levels, J, π, T1/2.

doi: 10.1016/0370-2693(71)90151-1
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1970NE06      Nucl.Phys. A148, 593 (1970)

J.O.Newton, S.D.Cirilov, F.S.Stephens, R.M.Diamond

Possible Oblate Shape of 9/2- Isomer in 199Tl

NUCLEAR REACTIONS 197Au(α, 2n), E=20-42 MeV; measured σ(E;Eγ, θ(γ)), I(ce), γγ-coin. 199Tl deduced levels, J, π, ICC, γ-mixing, oblate shape.

doi: 10.1016/0375-9474(70)90650-0
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1969DA08      Nucl.Phys. A132, 9 (1969)

C.M.da Silva, J.O.Newton, J.C.Lisle, M.F.da Silva

Structure in the Excitation Functions of (3He, α) Reactions on a Number of Alpha-Type Nuclei

NUCLEAR REACTIONS 16O, 28Si(3He, α), E=4-9 MeV; 24Mg(3He, α), E=4-6 MeV; 25 keV steps, measured σ(E;Eα, θ). 19Ne, 27Si, 31S resonances deduced level-width, auto-correlations, cross-correlations C(α, α'). Natural targets.

doi: 10.1016/0375-9474(69)90609-5
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1968CO04      Nucl.Phys. A109, 288(1968)

R.L.A.Cottrell, J.C.Lisle, J.O.Newton

Studies of (d, d) and (d, p) Reactions with Carbon Isotopes at Low Bombarding Energies

NUCLEAR REACTIONS 12,13C(d, d), 13C, (d, p), E=4-6 MeV; measured σ(E, θ). 12C(d, p), E=4.66 MeV; 13C(d, α), E=3.87, 4.66 MeV; measured σ(θ=70°). Enriched 13C target.

doi: 10.1016/0375-9474(68)90594-0
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetF1077.


1968NE01      Nucl.Phys. A108, 353 (1968)

J.O.Newton

Energy Levels in 183Re from the 181Ta(4He, 2nγ)183Re Reaction

NUCLEAR REACTIONS 181Ta(α, 2nγ), E = 19.8-38 MeV; measured σ(E; E(ce), Eγ, θ(γ)), γγ-coin. 183Re deduced levels J, π. Natural target, Ge(Li) detector.

doi: 10.1016/0375-9474(68)90097-3
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