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NSR database version of May 21, 2024.

Search: Author = P.J.Ennis

Found 12 matches.

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1994CR05      Phys.Rev. C50, 1321 (1994)

B.Crowell, P.J.Ennis, C.J.Lister, W.R.Schief, Jr.

Test of Predicted Gamma Stability at Spins above 8(h-bar) in 64Zn

NUCLEAR REACTIONS 12C(54Fe, 2p), E=155 MeV; measured Eγ, Iγ, (recoil)γ-, (recoil)γγ-coin, γ(θ), γγ(θ), DCO. 64Zn deduced high-spin levels J, π, γ-multipolarity, B(λ), quadrupole moments. Cranked Nilsson-Strutinsky, Woods-Saxon, Hartree-Fock models, Bohr Hamiltonian.

doi: 10.1103/PhysRevC.50.1321
Citations: PlumX Metrics

1993CH41      Phys.Rev. C48, 2607 (1993)

A.A.Chishti, P.Chowdhury, D.J.Blumenthal, P.J.Ennis, C.J.Lister, Ch.Winter, D.Vretenar, G.Bonsignori, M.Savoia

Collectivity in Light Zirconium Isotopes: Evolution with neutron number and angular momentum

NUCLEAR REACTIONS 58Ni(29Si, n2p), E=110 MeV; measured Eγ, Iγ, DCO ratios. 58Ni(32S, 2pα), E=110 MeV; measured Iγ(θ). 54Fe(33S, n2p), E=105 MeV; analyzed data. 58Ni(28Si, 2n2p), E not given; measured recoil distance. 84Zr deduced levels, J, π, band structure. 82Zr levels deduced T1/2. Models comparison.

NUCLEAR STRUCTURE 86,84,82Zr; calculated levels, g factors, B(λ). Interacting boson model, collective core inclusion.

doi: 10.1103/PhysRevC.48.2607
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1992CR02      Phys.Rev. C45, 1564 (1992)

B.Crowell, P.Chowdhury, D.J.Blumenthal, P.J.Ennis, S.J.Freeman, C.J.Lister, S.Smolen, Ch.Winter

Transitional Nucleus 101Ag: Spin-stabilized deformation in odd Ag isotopes

NUCLEAR REACTIONS 70Ge(35Cl, 2n2p), E=130 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ), γ multiplicity. 101Ag deduced levels, J, δ. Compton-suppressed Ge detectors, BGO detectors. Cranked Nilsson model, Strutinsky renormalization, particle-number projection.

doi: 10.1103/PhysRevC.45.1564
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1992EN03      Nucl.Instrum.Methods Phys.Res. A313, 413 (1992)

P.J.Ennis, C.J.Lister

Triggering of Large Germanium Arrays to Obtain Gamma-Ray Spectroscopic Data: Recoil-γ-γ versus γ-γ-γ

NUCLEAR REACTIONS 12C(54Fe, 2p), (54Fe, 2n), E=165 MeV; measured γγγ-, γγ(recoil)-coin; deduced triggering method reaction channel dependence. Hyperpure Ge detector array, electromagnetic separator.

doi: 10.1016/0168-9002(92)90819-P
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1991BL15      Phys.Rev.Lett. 66, 3121 (1991)

D.J.Blumenthal, C.J.Lister, P.Chowdhury, B.Crowell, P.J.Ennis, Ch.Winter, T.Drake, A.Galindo-Uribarri, G.Zwartz, H.R.Andrews, G.C.Ball, D.Radford, D.Ward, V.P.Janzen

Search for Nuclear-Structure Effects in Proton Evaporation Spectra

NUCLEAR REACTIONS 58Ni(29Si, n2p), (29Si, 2pα), (28Si, xnypzα), E=110 MeV; measured proton spectra, Doppler shifts, pp-, γγ-, pγ-, αp-coin; deduced channel, angular momentum dependences.

doi: 10.1103/PhysRevLett.66.3121
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1991CH40      Phys.Rev.Lett. 67, 2950 (1991)

P.Chowdhury, C.J.Lister, D.Vretenar, Ch.Winter, V.P.Janzen, H.R.Andrews, D.J.Blumenthal, B.Crowell, T.Drake, P.J.Ennis, A.Galindo-Uribarri, D.Horn, J.K.Johansson, A.Omar, S.Pilotte, D.Prevost, D.Radford, J.C.Waddington, D.Ward

Large B(M1) Staggering at High Spins in 86Zr: Broken boson pairs in the four-quasiparticle regime

NUCLEAR REACTIONS 60Ni(30Si, 2n2p), E=135 MeV; measured DSA, γγ energy correlations, γγ-coin, γγ(θ). 86Zr deduced levels, J, π, B(λ), T1/2, band structure. Interacting boson model, broken pair approximation.

doi: 10.1103/PhysRevLett.67.2950
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1991EN01      Nucl.Phys. A535, 392 (1991); Erratum Nucl.Phys. A560, 1079 (1993)

P.J.Ennis, C.J.Lister, W.Gelletly, H.G.Price, B.J.Varley, P.A.Butler, T.Hoare, S.Cwiok, W.Nazarewicz

Triaxiality and Isospin-Forbidden E1 Decays in the N = Z Nucleus 64Ge

NUCLEAR REACTIONS 12C(54Fe, 2n), E=165 MeV; 54Fe(12C, 2n), E=37 MeV; measured Eγ, Iγ(θ), γγ-coin; deduced absorption σ. 64Ge deduced levels, J, π. Germanium detector array, recoil separator.

doi: 10.1016/0375-9474(91)90454-E
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1991GR16      Nucl.Phys. A535, 203 (1991)

C.J.Gross, K.P.Lieb, D.Rudolph, M.A.Bentley, W.Gelletly, H.G.Price, J.Simpson, D.J.Blumenthal, P.J.Ennis, C.J.Lister, Ch.Winter, J.L.Durell, B.J.Varley, O.Skeppstedt, S.Rastikerdar

First Identification of Excited States in 84-86Nb

NUCLEAR REACTIONS 58Ni(28Si, np), E=195 MeV; 58Ni(32S, pα), E=110 MeV; 58Ni(32S, n3p), E=110, 120, 130 MeV; 40Ca(50Cr, pα), 40Ca(50Cr, n3p), E=170 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-, (X-ray)γ-coin. 84,86Nb deduced levels. 85Nb deduced levels, J, π, log ft. Enriched targets.

doi: 10.1016/0375-9474(91)90523-9
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1991HE02      Phys.Rev. C43, R921 (1991)

J.Heese, D.J.Blumenthal, A.A.Chishti, P.Chowdhury, B.Crowell, P.J.Ennis, C.J.Lister, Ch.Winter

Observation of Simultaneous g9/2 Proton and Neutron Alignment in 74Kr

NUCLEAR REACTIONS 40Ca(40Ca, 2pα), E=125, 140 MeV; measured Iγ, Eγ, γγ-coin, αγγ-coin, DSA. 74Kr deduced levels, J, π, T1/2, rotational bands, B(E2), transitional quadrupole moments, deformation parameters.

doi: 10.1103/PhysRevC.43.R921
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1991JU05      Z.Phys. A340, 125 (1991)

A.Jungclaus, K.P.Lieb, C.J.Gross, J.Heese, D.Rudolph, D.J.Blumenthal, P.Chowdhury, P.J.Ennis, C.J.Lister, Ch.Winter, J.Eberth, S.Skoda, M.A.Bentley, W.Gelletly, B.J.Varley

Heavy-Ion In-Beam Studies of the Nucleus 87Nb

NUCLEAR REACTIONS 40Ca(50Cr, 3p), E=170 MeV; 58Ni(32S, 3p), E=108 MeV; measured γγ-coin, γ(θ), DCO, γ(evaporation residue)-coin. 87Nb deduced levels, J, π, B(λ), T1/2. Comparison with other nuclei.

doi: 10.1007/BF01303824
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1991WI15      Nucl.Phys. A535, 137 (1991)

Ch.Winter, D.J.Blumenthal, P.Chowdhury, B.Crowell, P.J.Ennis, S.J.Freeman, C.J.Lister, C.J.Gross, J.Heese, A.Jungclaus, K.P.Lieb, D.Rudolph, M.A.Bentley, W.Gelletly, J.Simpson, J.L.Durell, B.J.Varley

Investigation of Shape Changes in 87Mo

NUCLEAR REACTIONS 58Ni(32S, n2p), E=110, 120, 130 MeV; 40Ca(50Cr, n2p), E=170 MeV; measured Eγ, Iγ(E, θ), DSA, recoil distance. 87Mo deduced levels, branching ratios, J, π, B(E2), T1/2. Recoil separator, neutron detectors, germanium detector array. Enriched targets.

doi: 10.1016/0375-9474(91)90520-G
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1990LI25      Phys.Rev. C42, R1191 (1990)

C.J.Lister, P.J.Ennis, A.A.Chishti, B.J.Varley, W.Gelletly, H.G.Price, A.N.James

Shape Changes in N = Z Nuclei from Germanium to Zirconium

NUCLEAR REACTIONS, ICPND 12C(54Fe, 2n), E=155, 165 MeV; 12C(58Ni, 2n), E=175 MeV; 24Mg(54Fe, 2n), E=175 MeV; measured Eγ, Iγ, γγ-, recoil γ-, recoil γγ-coin, production σ. 64Ge, 68Se, 76Sr deduced levels. Compton suppressed Ge detectors, recoil separator, NE213 detectors.

doi: 10.1103/PhysRevC.42.R1191
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