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NSR database version of April 24, 2024.

Search: Author = J.Copnell

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2017PE01      Nucl.Phys. A957, 240 (2017)

P.Petkov, A.Dewald, O.Moller, I.Deloncle, R.Chapman, S.Pascu, D.Bucurescu, D.Tonev, M.Reese, C.Fransen, S.Y.Araddad, G.Asova, J.Copnell, N.Goutev, M.Hackstein, J.Jolie, J.C.Lisle, J.N.Mo, Th.Pissulla, W.Rother, A.G.Smith, C.Tenereiro, D.M.Thompson, K.O.Zell

On the quadrupole collectivity in the yrast band of 168Yb

NUCLEAR REACTIONS 154Sm(18O, 4n), E=80 MeV;124Sn(48Ca, 4n), E=189 MeV; measured Eγ, Iγ, γγ-coin, RDDS (Recoil distance Doppler-shift) spectra using five large volume Ge (Sm target) and 21 escape-suppressed HPGe (Sn target). 168Yb deduced T1/2, B(E2) of levels using lifetime analysis with differential decay curve method (one B(E2) deduced using published T1/2), yrast band quadrupole moments; calculated B(E2) vs spin. Yrast band moments of inertia and B(E2) compared with published values for 164,166,168,170Yb; deduced indication for reduced collectivity at low spin unexplained by available calculations.

doi: 10.1016/j.nuclphysa.2016.09.006
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


1998WH04      Nucl.Phys. A644, 277 (1998)

G.N.White, N.J.Stone, J.Rikovska, S.Ohya, J.Copnell, T.J.Giles, Y.Koh, I.S.Towner, B.A.Brown, B.Fogelberg, L.Jacobsson, P.Rahkila, M.Hjorth-Jensen

Magnetic Dipole Moments Near 132Sn: New measurement on 135I by NMR/ON

RADIOACTIVITY 135I(β-) [from 233U(n, F), E=thermal]; measured Iγ(θ, H, T), NMR on oriented nuclei. 135I deduced ground state g, μ. Shell model, core polarization, mesonic exchange currents.

NUCLEAR STRUCTURE 125,127,129,131,133Sb, 133,135I, 137Cs, 139La; calculated μ. Shell model.

doi: 10.1016/S0375-9474(98)00597-1
Citations: PlumX Metrics


1998WH05      Nucl.Phys. A640, 322 (1998)

G.White, J.Rikovska, N.J.Stone, J.Copnell, I.S.Towner, A.M.Oros, K.Heyde, B.Fogelberg, L.Jacobsson, F.Gustavsson

Magnetic Dipole Moments Near 132Sn: Measurement on isomeric 11/2- states in odd-A 131Te and 133Te by NMR/ON

RADIOACTIVITY 131,133Te(β-) [from 233U(n, F)]; measured Eγ, Iγ(θ, T, H), NMR on oriented nuclei. 131,133Te deduced isomeric states g, μ. Shell model, core polarization, mesonic exchange currents, particle-core coupling model.

doi: 10.1016/S0375-9474(98)00461-8
Citations: PlumX Metrics


1997JE07      Z.Phys. A359, 127 (1997)

H.J.Jensen, R.A.Bark, R.Bengtsson, G.B.Hagemann, P.O.Tjom, S.Y.Araddad, C.W.Beausang, R.Chapman, J.Copnell, A.Fitzpatrick, S.J.Freeman, S.Leoni, J.C.Lisle, J.Simpson, A.G.Smith, D.M.Thompson, S.J.Warburton, J.Wrzesinski

Loss of Alignment Gain in the πh9/2[541 (1/2)-)] (x) (νi13/2)2 Band in 167Tm and Neighbouring Odd-Z N = 98 Nuclei

NUCLEAR REACTIONS 124Sn(48Ca, 4np), E=210 MeV; measured Eγ, Iγ, γγ-coin. 167Tm deduced high-spin levels, J, π, band structure. Cranked shell model calculations, data from other nuclei compared.

doi: 10.1007/s002180050377
Citations: PlumX Metrics


1996SM05      J.Phys.(London) G22, 1411 (1996)

D.H.Smalley, A.G.Smith, S.Y.Araddad, C.W.Beausang, R.Chapman, J.Copnell, A.Fitzpatrick, S.J.Freeman, S.Leoni, F.Linden, J.C.Lisle, J.F.Sharpey-Schafer, J.Simpson, J.P.Sweeney, D.M.Thompson, W.Urban, S.J.Warburton, J.Wrzesinski

Evidence for a Rotational Alignment in a High-K Band in 167Yb

NUCLEAR REACTIONS 124Sn(48Ca, 5n), E=210 MeV; measured γγ-coin. 167Yb deduced high-spin levels, J, π, K, Iγ, band structure, alignment, configuration.

doi: 10.1088/0954-3899/22/10/006
Citations: PlumX Metrics


1996TE02      Phys.Rev. C53, 2870 (1996)

C.Tenreiro, J.C.Acquadro, P.A.B.Freitas, R.Liguori Neto, G.Ramirez, N.Cuevas, P.R.S.Gomes, R.Cabezas, R.M.Anjos, J.Copnell

Elastic amd Inelastic Scattering of 16O + 64Zn at Near-Barrier Energies

NUCLEAR REACTIONS 64Zn(16O, 16O), (16O, 16O'), E(cm)=41.6-51.2 MeV; measured σ(θ); deduced model parameters. Optical, coupled-channels models.

doi: 10.1103/PhysRevC.53.2870
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0416.


1995CO31      Phys.Rev. A51, R879 (1995)

J.Copnell, W.R.Phillips, A.R.Barnett, K.E.Rehm, I.Ahmad, J.Gehring, B.G.Glagola, W.Kutschera

Internal Conversion in Highly Stripped 83Kr Ions

RADIOACTIVITY 83mKr(IT) [from 197Au(83Kr, 83Kr'), E=650 MeV]; measured total decay probabilities per unit time. 83Kr deduced transition ICC.

doi: 10.1103/PhysRevA.51.R879
Citations: PlumX Metrics


1995FI01      Nucl.Phys. A582, 335 (1995)

A.Fitzpatrick, S.Y.Araddad, R.Chapman, J.Copnell, F.Liden, J.C.Lisle, A.G.Smith, J.P.Sweeney, D.M.Thompson, W.Urban, S.J.Warburton, J.Simpson, C.W.Beausang, J.F.Sharpey-Schafer, S.J.Freeman, S.Leoni, J.Wrzesinski

Proton Alignments at High Rotational Frequency in 167,168Yb

NUCLEAR REACTIONS 124Sn(48Ca, 5n), (48Ca, 4n), E=210 MeV; measured Eγ, Iγ, γγγ-coin. 167,168Yb deduced high-spin levels, J, π, rotational bands, aligned angular momentum. Cranking, Nilsson, Woods-Saxon models.

doi: 10.1016/0375-9474(94)00459-Z
Citations: PlumX Metrics


1995GA13      J.Phys.(London) G21, 193 (1995)

S.J.Gale, J.Simpson, M.A.Riley, J.F.Sharpey-Schafer, E.S.Paul, M.A.Bentley, A.M.Bruce, R.Chapman, R.M.Clark, S.Clarke, J.Copnell, D.M.Cullen, P.Fallon, A.Fitzpatrick, P.D.Forsyth, S.J.Freeman, P.M.Jones, M.J.Joyce, F.Liden, J.C.Lisle, A.O.Macchiavelli, A.G.Smith, J.F.Smith, J.Sweeney, D.M.Thompson, S.Warburton, J.N.Wilson, I.Ragnarsson

Band Termination Spectroscopy in 157Er

NUCLEAR REACTIONS 114Cd(48Ca, 5n), E=210 MeV; measured γγγ-, γγγγ-coin, Eγ, Iγ, γγ(θ). 157Er deduced high-spin levels, transition energies, Iγ, J, π. Enriched targets, EUROGAM array of escape suppressed spectrometers (Ge and BGO detectors). Cranked-shell model, cranked Nilsson-Strutinsky calculations, band terminating states.


1995SM02      Nucl.Phys. A587, 150 (1995)

A.G.Smith, R.Chapman, D.C.Clark, J.Copnell, S.J.Freeman, F.Khazaie, G.S.Li, J.C.Lisle, J.N.Mo, C.Tenreiro, D.M.Thompson, G.J.Yuan, J.Espino, G.B.Hagemann

Electromagnetic Properties of 161Tm at High Spin

NUCLEAR REACTIONS 128Te(37Cl, 4n), E=170 MeV; measured Eγ, γγ-coin, Iγ, DSA. 161Tm deduced high-spin levels, T1/2, B(M1), B(E2). Enriched targets, array of Compton-suppressed Ge detectors.

doi: 10.1016/0375-9474(94)00810-A
Citations: PlumX Metrics


1995WA21      Nucl.Phys. A591, 323 (1995)

S.J.Warburton, R.Chapman, J.Copnell, F.Liden, A.G.Smith, J.P.Sweeney, D.M.Thompson, S.J.Freeman, G.B.Hagemann, M.Piiparinen

Configuration-Dependent Transition Rates in 161Tm

NUCLEAR REACTIONS 128Te(37Cl, 4n), E=167 MeV; measured γγ-coin, RDM. 161Tm deduced high-spin levels, J, π, quasiparticle alignments, routhians, T1/2, δ, B(λ), ratios. Enriched targets, array of Compton-suppressed Ge detectors, inner ball of barium fluoride detectors, recoil distance methods.

doi: 10.1016/0375-9474(95)00179-5
Citations: PlumX Metrics


1994SI10      Phys.Lett. 327B, 187 (1994)

J.Simpson, M.A.Riley, S.J.Gale, J.F.Sharpey-Schafer, M.A.Bentley, A.M.Bruce, R.Chapman, R.M.Clark, S.Clarke, J.Copnell, D.M.Cullen, P.Fallon, A.Fitzpatrick, P.D.Forsyth, S.J.Freeman, P.M.Jones, M.J.Joyce, F.Linden, J.C.Lisle, A.O.Macchiavelli, A.G.Smith, J.F.Smith, J.Sweeney, D.M.Thompson, S.Warburton, J.N.Wilson, T.Bengtsson, I.Ragnarsson

Single Particle Excitations and Properties of Multiple Band Terminations Near Spin 50(h-bar) in 158Er

NUCLEAR REACTIONS 114Cd(48Ca, 4n), E=210 MeV; measured γγ-coin. 158Er deduced levels, J, π, band structure, configuration. Cranked Nilsson-Strutinsky calculations.

doi: 10.1016/0370-2693(94)90716-1
Citations: PlumX Metrics


1993CI01      Phys.Rev. C47, 1294 (1993)

J.A.Cizewski, M.A.C.Hotchkis, J.L.Durell, J.Copnell, A.S.Mowbray, J.Fitzgerald, W.R.Phillips, I.Ahmad, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, E.F.Moore, L.R.Morss, Ph.Benet, D.Ye

New N = 84 Isotone: 136Te

RADIOACTIVITY 248Cm(SF); measured γγ-coin. 252Cf(SF); measured Eγ, Iγ. 136Te deduced levels, J, π, transitions.

doi: 10.1103/PhysRevC.47.1294
Citations: PlumX Metrics


1992CO21      Phys.Rev. C46, 1301 (1992)

J.Copnell, S.J.Robinson, J.Jolie, K.Heyde

Structure of the N = 84 Isotones 138Xe-146Sm

NUCLEAR STRUCTURE 138Xe, 140Ba, 142Ce, 143,144Nd, 148Sm; calculated levels, B(λ). Interacting boson model, particle-core model.

doi: 10.1103/PhysRevC.46.1301
Citations: PlumX Metrics


1992CO25      J.Phys.(London) G18, 1943 (1992)

J.Copnell, K.Kumar, S.J.Robinson, C.Tenreiro

An Application of the Dynamic Deformation Model to the N = 84 Isotones 138Xe-146Sm

NUCLEAR STRUCTURE 138Xe, 146Sm, 140Ba, 142Ce, 144Nd; calculated levels, B(λ), δ. Dynamic deformation model.

doi: 10.1088/0954-3899/18/12/010
Citations: PlumX Metrics


1992CO26      Z.Phys. A344, 35 (1992)

J.Copnell, S.J.Robinson, W.Lippert, V.Rabbel

Levels of 138Xe Populated in the β-Decay of 138I

RADIOACTIVITY 138I(β-) [from 235U(n, F), E=thermal]; measured Eγ, Iγ, βγ-coin, γγ-coin. 138Xe deduced levels, J, π.

doi: 10.1007/BF01291017
Citations: PlumX Metrics


1991PE12      Nucl.Phys. A533, 49 (1991)

P.Petkov, W.Andrejtscheff, J.Copnell, S.J.Robinson

E1 and M1 Transition Strengths from Two-Quasiparticle Structures in 168Er

NUCLEAR REACTIONS 167Er(n, γ), E=thermal; measured Eγ, Iγ, γγ(t). 168Er levels deduced T1/2, B(λ). Natural target, Ge detectors, generalized centroid-shift analysis, E1 systematics.

doi: 10.1016/0375-9474(91)90819-R
Citations: PlumX Metrics


1990VE10      Phys.Rev. C42, 588 (1990)

M.Veskovic, I.Bikit, I.Anicin, W.D.Hamilton, J.Copnell, M.Krmar, J.Slivka

Some Aspects of the 111Cd Level Scheme

NUCLEAR REACTIONS 110Cd(n, γ), E=thermal; measured γ- spectra, γγ-coin; deduced σ(n, γ). 111Cd deduced level, isomer population mode.

doi: 10.1103/PhysRevC.42.588
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22228.


1989CO06      Phys.Lett. 222B, 1 (1989)

J.Copnell, S.Robinson, J.Jolie, K.Heyde

Test of the Interacting Boson Approximation in the N = 84 Isotones Using Particle-Core Coupling

NUCLEAR STRUCTURE 144Nd; calculated levels, B(λ), δ, μ, quadrupole moment. Interacting boson approximation.

doi: 10.1016/0370-2693(89)90713-2
Citations: PlumX Metrics


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