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NSR database version of May 24, 2024.

Search: Author = A.J.Kirwan

Found 14 matches.

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1995KR08      Nucl.Phys. A589, 475 (1995)

R.Krucken, A.Dewald, G.Bohm, P.Sala, J.Altmann, K.O.Zell, P.von Brentano, S.A.Forbes, S.M.Mullins, D.J.Thornley, A.J.Kirwan, P.J.Nolan, P.H.Regan, R.Wadsworth

Lifetimes of Low-Lying States in 132Nd and 134Nd

NUCLEAR REACTIONS 105Pd(32S, 2n2p), (32S, xnyp), E=152 MeV; measured recoil distance Doppler shift. 132,134Nd deduced levels, T1/2, B(λ). Rotational, interacting boson models, O(6) limit.

doi: 10.1016/0375-9474(95)00183-2
Citations: PlumX Metrics


1992DE28      Nucl.Phys. A545, 822 (1992)

A.Dewald, P.Sala, R.Wrzal, G.Bohm, D.Lieberz, G.Siems, R.Wirowski, K.O.Zell, A.Gelberg, P.von Brentano, P.Nolan, A.J.Kirwan, P.J.Bishop, R.Julin, A.Lampinen, J.Hattula

Electromagnetic Transition Probabilities in 130Ce

NUCLEAR REACTIONS 98Mo(36S, 4n), E=150 MeV; measured γγ-coin, recoil distance Doppler shift measurement. 130Ce levels deduced T1/2, B(λ). Triaxial rotor model comparison.

doi: 10.1016/0375-9474(92)90531-N
Citations: PlumX Metrics


1992HE03      J.Phys.(London) G18, 99 (1992)

Y.He, M.J.Godfrey, I.Jenkins, A.J.Kirwan, S.M.Mullins, P.J.Nolan, E.S.Paul, R.Wadsworth

Rotational Band Structures in 129La

NUCLEAR REACTIONS 51V(82Se, 4n), E=290 MeV; measured γγ-coin, Iγ, DCO ratios. 129La deduced levels, J, π, B(λ) ratios, band structure, configurations. Cranked shell model.

doi: 10.1088/0954-3899/18/1/009
Citations: PlumX Metrics


1992MU09      Phys.Rev. C45, 2683 (1992)

S.M.Mullins, I.Jenkins, Y.-J.He, A.J.Kirwan, P.J.Nolan, J.R.Hughes, R.Wadsworth, R.A.Wyss

Second Minimum Lifetime Measurements in 133Nd and 137Nd

NUCLEAR REACTIONS 105Pd(32S, 2n2p), E=152 MeV; 104Ru(36S, 3n), E=145 MeV; measured γγ-coin, DSA, centroid shifts. 133,137Nd deduced levels, T1/2, deformed band quadrupole moments. Total Routhian surface calculations.

doi: 10.1103/PhysRevC.45.2683
Citations: PlumX Metrics


1990HE12      J.Phys.(London) G16, 657 (1990)

Y.He, M.J.Godfrey, I.Jenkins, A.J.Kirwan, P.J.Nolan, S.M.Mullins, R.Wadsworth, D.J.G.Love

Quadrupole Moment of the Superdeformed Band in 131Ce

NUCLEAR REACTIONS 100Mo(36S, 5n), E=155 MeV; measured γγ-coin, DSA. 131Ce deduced levels, J, π, mean T1/2, β2, superdeformed intrinsic quadrupole moment, band structure.

doi: 10.1088/0954-3899/16/4/016
Citations: PlumX Metrics


1989JE03      Z.Phys. A333, 405 (1989)

I.Jenkins, P.J.Nolan, A.J.Kirwan, M.J.Godfrey, P.J.Bishop, D.J.Thornley, K.L.Ying, R.Wadsworth

Band Structures in 134Nd

NUCLEAR REACTIONS 104Ru(36S, 6n), E=155 MeV; measured γγ-coin. 134Nd deduced levels, J, π, band structure.


1989KI01      J.Phys.(London) G15, 85 (1989)

A.J.Kirwan, P.J.Bishop, D.J.G.Love, P.J.Nolan, D.J.Thornley, A.Dewald, A.Gelberg, K.Schiffer, K.O.Zell

Lifetime Measurements in the Yrast Band of 132Ce

NUCLEAR REACTIONS 100Mo(36S, 4n), E=145 MeV; measured Eγ, Iγ, RDM. 132Ce deduced levels, J, π, T1/2, B(E2). Ge detectors, BGO escape suppression shields, BGO multiplicity filter, enriched target. Model comparison.

doi: 10.1088/0954-3899/15/1/009
Citations: PlumX Metrics


1988BI03      J.Phys.(London) G14, 995 (1988)

P.J.Bishop, M.J.Godfrey, A.J.Kirwan, P.J.Nolan, D.J.Thornley, J.M.O'Donnell, R.Wadsworth, D.J.G.Love, L.Goettig

Low-Lying States in 138,140Gd and 139Eu

NUCLEAR REACTIONS 92Mo(50Cr, 2n2p), (50Cr, 3p), E=230 MeV; 92Mo(54Fe, 2pα), E=260 MeV; measured E(γ), I(γ), γγ-coin, RDM. 138Gd, 139Eu deduced levels, T1/2, B(E2), deformation. 140Gd deduced levels. Ge detectors, BGO detectors, BGO escape suppression shield, BGO multiplicity filter, enriched targets.

doi: 10.1088/0305-4616/14/7/016
Citations: PlumX Metrics


1988MU22      J.Phys.(London) G14, 1373 (1988)

S.M.Mullins, M.D.Cohler, A.Ghazarian, J.R.Hughes, R.Wadsworth, D.L.Watson, P.J.Bishop, A.J.Kirwan, P.J.Nolan, R.J.Poynter, D.J.G.Love, J.Heese

Collective Bands and Lifetime Measurements in 137Pm

NUCLEAR REACTIONS 122Te(19F, 4n), E=83 MeV; 108Pd(32S, 2np), E=152 MeV; measured Eγ, Iγ, γγ-coin, recoil distance. 137Pm deduced levels J, π, T1/2, deformation parameter, B(E2). Ge detectors, BGO escape suppression shields, BGO multiplicity filter, enriched targets. Cranked shell model.

NUCLEAR STRUCTURE 137Pm; calculated levels, deformation parameter. Cranked shell model.

doi: 10.1088/0305-4616/14/11/009
Citations: PlumX Metrics


1987BI11      Fizika(Zagreb) 19, Supplement 1, 29 (1987)

P.J.Bishop, A.N.James, A.J.Kirwan, P.J.Nolan, D.J.Thornley, K.L.Ying, R.Wadsworth, S.Mullins, D.J.G.Love

A Study of Nuclei in the Mass 137 Region of the Light Rare Earths

NUCLEAR REACTIONS 66Zn(74Se, X), E=290 MeV; measured γ-spectra. 136Pm, 138Eu deduced transitions. 137Eu, 137Sm deduced levels, J, π, γ-branching, band characteristics.


1987KI02      Phys.Rev.Lett. 58, 467 (1987)

A.J.Kirwan, G.C.Ball, P.J.Bishop, M.J.Godfrey, P.J.Nolan, D.J.Thornley, D.J.G.Love, A.H.Nelson

Mean-Lifetime Measurements within the Superdeformed Second Minimum in 132Ce

NUCLEAR REACTIONS 100Mo(36S, 4n), E=150 MeV; measured Eγ, Iγ, DSA. 132Ce deduced levels, J, π, rotational band structure, T1/2, deformation, superdeformation. Bismuth germanate detectors.

RADIOACTIVITY 132Ce(EC) [from 100Mo(36S, 4n), E=150 MeV]; measured Eγ, Iγ, DSA. 132Ce deduced levels, J, π, rotational band structure, T1/2, deformation, superdeformation. Bismuth germanate detectors.

doi: 10.1103/PhysRevLett.58.467
Citations: PlumX Metrics


1987MU12      J.Phys.(London) G13, L201 (1987)

S.M.Mullins, R.Wadsworth, J.M.O'Donnell, P.J.Nolan, A.J.Kirwan, P.J.Bishop, M.J.Godfrey, D.J.G.Love

First Observation of the i13/2 Neutron Orbital in the A = 130 Region: Spectroscopy of 135Sm

NUCLEAR REACTIONS 92Mo(46Ti, n2p), E=210 MeV; 64Zn(74Se, n2p), E=290 MeV; measured Eγ, Iγ, γγ-, γ(recoil nucleus)-coin, γγ(θ). 135Sm deduced levels, J, π, γ-branching, configuration, band structure. Ge detectors, bismuth germanate suppression shields, recoil separator, enriched targets. Cranked shell model.

doi: 10.1088/0305-4616/13/9/006
Citations: PlumX Metrics


1987SI16      J.Phys.(London) G13, L235 (1987)

J.Simpson, M.A.Riley, A.N.James, A.R.Mokhtar, H.W.Cranmer-Gordon, P.D.Forsyth, A.J.Kirwan, D.Howe, J.D.Morrison, J.F.Sharpey-Schafer

Spin 50(h-bar) in 160Er and the Boundary between Collective and Non-Collective Rotation in the Light Er Isotopes

NUCLEAR REACTIONS 116Cd(48Ca, 4n), E=210 MeV; measured γγ-coin. 160Er deduced levels, J, π, band structure, γ-branching.

doi: 10.1088/0305-4616/13/10/003
Citations: PlumX Metrics


1986YI01      J.Phys.(London) G12, L211 (1986)

K.L.Ying, P.J.Bishop, A.N.James, A.J.Kirwan, D.J.G.Love, T.P.Morrison, P.J.Nolan, D.C.B.Watson, K.A.Connell, A.H.Nelson, J.Simpson

Experimental Investigation of the Structure of 124Ce

NUCLEAR STRUCTURE 124,126,128,130,138Ce; calculated deformation, potential energy surfaces.

NUCLEAR REACTIONS 54Fe(74Se, 2n2p), E=300 MeV; measured Eγ, Iγ, γγ-, γ(residue)-coin. 124Ce deduced transitions, possible level J, π, deformation.

doi: 10.1088/0305-4616/12/9/004
Citations: PlumX Metrics


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