NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of April 27, 2024.

Search: Author = J.Copnell

Found 19 matches.

Back to query form

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 T_1/2, B(E2) of levels using lifetime analysis with differential decay curve method (one B(E2) deduced using published T_1/2), yrast band quadrupole moments; calculated B(E2) vs spin. Yrast band moments of inertia and B(E2) compared with published values for ^{164,166,168,170}Yb; 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 ^{125,127,129,131,133}Sb, ^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 πh_9/2[541 (1/2)^-)] (x) (νi_13/2)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, T_1/2, 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, T_1/2, 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 T_1/2, 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