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NSR database version of April 27, 2024.

Search: Author = M.J.Godfrey

Found 20 matches.

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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

1991RE03      Nucl.Phys. A533, 476 (1991)

P.H.Regan, R.Wadsworth, J.R.Hughes, G.J.Gyapong, W.Gelletly, M.J.Godfrey, I.Jenkins, Y.-J.He, S.M.Mullins, P.J.Nolan, J.Simpson, B.J.Varley, D.L.Watson

Spectroscopy of the Light Rare-Earth Nuclei ¹³³Pm and ¹³³Sm: Configuration-dependent pairing and evidence for strong residual proton-neutron interactions in neighbouring odd-N and odd-Z nuclei

NUCLEAR REACTIONS ⁹⁶Ru(⁴⁰Ca, 2np), (⁴⁰Ca, 3p), E=180 MeV; measured Iγ, Eγ. ¹³³Sm, ¹³³Pm levels deduced J, π, configurations.

doi: 10.1016/0375-9474(91)90529-F
Citations: PlumX Metrics

1991WA09      Nucl.Phys. A526, 188 (1991)

R.Wadsworth, S.M.Mullins, P.J.Bishop, A.Kirwan, M.J.Godfrey, P.J.Nolan, P.H.Regan

Rotational Bands in the Doubly Odd N = 73 Nucleus ¹³⁴Pm

NUCLEAR REACTIONS ⁹²Mo(⁴⁶Ti, n3p), E=210 MeV; ⁶⁴Zn(⁷⁴Se, n3p), E=290 MeV; measured γγ-coin, γ-multiplicity, Iγ(θ). ¹³⁴Pm deduced levels J, π, quadrupole moment. Comparison with cranked shell model, total routhian surfaces calculations. Enriched targets, Ge detectors, BGO suppression shields, recoil mass seperator.

doi: 10.1016/0375-9474(91)90305-P
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 T_1/2, β₂, superdeformed intrinsic quadrupole moment, band structure.

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

1989GO04      J.Phys.(London) G15, 487 (1989)

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

The Competition between Collective and Single Particle Behaviour in the Odd-Odd Isotopes ^128,130La

NUCLEAR REACTIONS ⁹⁵Mo(³⁶S, 2np), E=135, 145 MeV; ⁵⁴Cr(⁷⁸Se, 3np), E not given; ⁵¹V(⁸²Se, 3n), E=290 MeV; measured E(γ), I(γ), γγ-coin. ¹¹⁵In(¹⁶O, 3n), E=68 MeV; measured σ(θ(residual)), γγ-coin. ^128,130La deduced levels, J, π, relative I(γ), branching ratio, B(M1)/B(E2).

doi: 10.1088/0954-3899/15/4/012
Citations: PlumX Metrics

1989GO06      J.Phys.(London) G15, 671 (1989)

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

Collective Oblate Structure in the Odd-Odd Isotopes ^128,130La

NUCLEAR REACTIONS ⁹⁵Mo(³⁶S, 2np), E=135, 145 MeV; measured γγ-coin. ¹¹⁵In(¹⁶O, 3n), E=68 MeV; measured γ(θ). ⁵¹V(⁸²Se, 3n), E=290 MeV; measured γγ-coin, γ-spectra. ^128,130La deduced levels, J, π, γ-branching, B(λ) ratios.

doi: 10.1088/0954-3899/15/5/019
Citations: PlumX Metrics

1989GO13      J.Phys.(London) G15, L163 (1989)

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

The Proton Structure of the Superdeformed Bands in the N = 73 Isotones ¹³⁰La, ¹³¹Ce and ¹³³Nd

NUCLEAR REACTIONS ⁵¹V(⁸²Se, 3n), E=290 MeV; measured γγ-coin. ¹³⁰La deduced levels, superdeformed band structure, shape features, moments of inertia.

doi: 10.1088/0954-3899/15/8/004
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.

1989WA08      J.Phys.(London) G15, L47 (1989)

R.Wadsworth, S.M.Mullins, J.R.Hughes, P.J.Nolan, A.Kirwan, P.J.Bishop, I.Jenkins, M.J.Godfrey, D.J.Thornley

Anomalous Crossing Frequencies in the Sidebands of ^132,134Nd

NUCLEAR REACTIONS ¹⁰⁴Pd(³²S, 2n2p), E=152 MeV; ¹⁰⁴Ru(³⁴S, 4n), E=150 MeV; measured γγ-, (recoil)γ-coin, I(γ). ^134,132Nd deduced levels, J, π. Ge detectors, BGO escape suppression shields, BGO crystal ball, enriched target. Cranked shell model calculations.

doi: 10.1088/0954-3899/15/4/001
Citations: PlumX Metrics

1989WA20      Z.Phys. A333, 409 (1989)

R.Wadsworth, P.Regan, S.M.Mullins, G.J.Gyapong, D.L.Watson, P.J.Nolan, M.J.Godfrey, I.Jenkins, Y.J.He, B.J.Varley, W.Gelletly, J.Simpson

Evidence for an i_13/2 Neutron Band in ¹³³Sm

NUCLEAR REACTIONS ⁹⁶Ru(⁴⁰Ca, n2p), E=195 MeV; measured γγ-, nγ-, nnγ-coin. ¹³³Sm deduced levels, J, π, band structure.

1989WA21      Z.Phys. A333, 411 (1989)

R.Wadsworth, P.Regan, S.M.Mullins, G.J.Gyapong, D.L.Watson, P.J.Nolan, M.J.Godfrey, I.Jenkins, Y.J.He, B.J.Varley, J.Simpson, W.Gelletly

Yrast Band Spectroscopy of ¹³²Sm and ¹³⁰Nd

NUCLEAR REACTIONS ⁹⁶Ru(⁴⁰Ca, 2n2p), ⁹⁶Ru(⁴⁰Ca, 2pα), E=195 MeV; measured γγ-, nγ-, nnγ-coin. ¹³⁰Nd, ¹³²Sm deduced levels, J, π, band structure.

1989WY01      Z.Phys. A332, 241 (1989)

R.Wyss, A.Johnson, D.J.G.Love, M.J.Godfrey, S.M.Mullins

High Spin Spectroscopy of ¹²⁴Ba and h_11/2 Neutron Alignment

NUCLEAR REACTIONS ⁹⁴Mo(³²S, 2p), E=150 MeV; measured γγ-coin. ¹²⁴Ba deduced levels, J, π, band structure, configuration.

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, T_1/2, 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

1988LU01      Z.Phys. A329, 125 (1988)

Y.-X.Luo, J.-Q.Zhong, D.J.G.Love, A.Kirwan, P.J.Bishop, M.J.Godfrey, I.Jenkins, P.J.Nolan, S.M.Mullins, R.Wadsworth

A Superdeformed Band in ¹³¹Ce

NUCLEAR REACTIONS ¹⁰⁰Mo(³⁶S, 5n), ⁹⁸Mo(³⁶S, 3n), E=155 MeV; measured Eγ, Iγ, γγ-coin. ¹³¹Ce deduced levels, rotational band, superdeformed band, moment of inertia.

1988WA01      J.Phys.(London) G14, 239 (1988)

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

Investigation of the Band Structure of ^132,134Nd and ¹³⁵Pm at Medium Spin

NUCLEAR REACTIONS ⁹²Mo(⁴⁶Ti, 2pα), (⁴⁶Ti, 4p), (⁴⁶Ti, 3p), E=210 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). ^132,134Nd, ¹³⁵Pm deduced levels, J, π, band characteristics, γ-multipolarity. Model calculations.

NUCLEAR STRUCTURE ^132,134Nd, ¹³⁵Pm; calculated levels, band characteristics.

doi: 10.1088/0305-4616/14/2/016
Citations: PlumX Metrics

1987GO26      J.Phys.(London) G13, 1165 (1987)

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

Energy Levels in ¹³¹Pr

NUCLEAR REACTIONS ⁹⁸Mo(³⁷Cl, 4n), E=145 MeV; measured Eγ, Iγ, γγ-coin. ¹³¹Pr deduced levels, J, π, yrast band characteristics, γ branching ratios. Ge, bismuth germanate detectors. Cranked shell model.

doi: 10.1088/0305-4616/13/9/016
Citations: PlumX Metrics

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, T_1/2, 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, T_1/2, 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 i_13/2 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

1987NO07      J.Phys.(London) G13, 1555 (1987)

P.J.Nolan, R.Aryaeinejad, P.J.Bishop, M.J.Godfrey, A.Kirwan, D.J.G.Love, A.H.Nelson, D.J.Thornley, D.J.Unwin

Signature Splitting in ¹²⁸La and ¹³⁰La

NUCLEAR REACTIONS ¹¹⁵In(¹⁶O, 3n), (¹⁸O, 3n), E=65-80 MeV; measured Eγ, Iγ, Iγ(θ), σ(Eγ, E). ⁹⁸Mo(³⁷Cl, 3nα), E=145 MeV; ⁹⁸Mo(³⁶S, 3np), E=150 MeV; measured γγ-coin. ¹³⁰La deduced levels, γ-multipolarity, γ-branching ratio, B(λ) ratio. ¹²⁸La deduced levels, γ-branching ratio, B(λ) ratios, γ-multipolarity, δ. Enriched targets, Ge detectors, NaI(Tl) suppression shields, BGO sum energy-multiplicity filter.

doi: 10.1088/0305-4616/13/12/013
Citations: PlumX Metrics

1987WA18      J.Phys.(London) G13, L207 (1987)

R.Wadsworth, A.Kirwan, D.J.G.Love, Y.-X.Luo, J.-Q.Zhong, P.J.Nolan, P.J.Bishop, M.J.Godfrey, R.Hughes, A.N.James, I.Jenkins, S.M.Mullins, J.Simpson, D.J.Thornley, K.L.Ying

The New Spectroscopy of Superdeformed States: Systematics in the light rare earths and unexpected feeding patterns

NUCLEAR REACTIONS ¹⁰⁴Pd(³²S, 2n2p), (³²S, n2p), E=152 MeV; ¹⁰⁴Ru(³⁴S, 4n), (³⁴S, 3n), E=155 MeV; ¹⁰⁴Ru(³⁶S, 4n), (³⁶S, 3n), E=150 MeV; ¹⁰⁴Ru(³⁴S, 4np), E=162 MeV; ¹⁰⁶Pd(³⁴S, 4np), (³⁴S, 4n), E=152 MeV; ¹⁰⁰Mo(³⁶S, 4n), E=150 MeV; measured Eγ, Iγ, γγ-coin. ¹³²Ce, ^{133,134,135,137}Nd deduced transitions, feeding level J, π, dynamical moments of inertia, superdeformed bands.

doi: 10.1088/0305-4616/13/9/007
Citations: PlumX Metrics