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NSR database version of April 27, 2024.

Search: Author = F.R.May

Found 17 matches.

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1994BR09      Nucl.Phys. A571, 337 (1994)

A.Brockstedt, J.Lyttkens-Linden, M.Bergstrom, L.P.Ekstrom, H.Ryde, J.C.Bacelar, J.D.Garrett, G.B.Hagemann, B.Herskind, F.R.May, P.O.Tjom, S.Frauendorf

Interpretation of Bands in ¹⁶³Er within the Tilted Rotation Scheme Enchanced E1 Decay Strength

NUCLEAR REACTIONS ¹⁵⁰Nd(¹⁸O, 5n), E=83 MeV; measured Eγ, γγ-coin, Iγ. ¹⁶³Er deduced levels, J, π, B(M1)/B(E2), B(E1), high-K, multi-quasiparticle states. Tilted cranking calculations.

doi: 10.1016/0375-9474(94)90065-5
Citations: PlumX Metrics

1994FR20      Phys.Scr. 50, 628 (1994)

H.Frisk, I.Hamamoto, F.R.May

Quadrupole-Octupole Deformation in Finite Fermion System

NUCLEAR STRUCTURE N=138-186; analyzed quadrupole-octupole deformation features; deduced nonaxially-symmetric Y₃₃ deformation superposed on prolate or oblate deformation role. Two-level, modified oscillator models.

doi: 10.1088/0031-8949/50/6/005
Citations: PlumX Metrics

1993BR10      Nucl.Phys. A557, 469c (1993)

A.Brockstedt, J.Lyttkens-Linden, M.Bergstrom, L.P.Ekstrom, H.Ryde, J.C.Bacelar, S.Frauendorf, J.D.Garrett, G.B.Hagemann, B.Herskind, F.R.May, P.O.Tjom

Interpretation of Bands in ¹⁶³Er within the Tilted Rotation Scheme

NUCLEAR REACTIONS ¹⁵⁰Nd(¹⁸O, 5n), E=83 MeV; measured γγ-coin. ¹⁶³Er deduced levels, J, π, band structure, K, configuration. Tilted rotation scheme interpretation.

doi: 10.1016/0375-9474(93)90563-D
Citations: PlumX Metrics

1986BE10      At.Data Nucl.Data Tables 35, 15 (1986)

R.Bengtsson, S.Frauendorf, F.-R.May

Quasiparticle Levels in Rotating Rare Earth Nuclei: A cranked shell-model dictionary

NUCLEAR STRUCTURE ^{152,154,150,156}Sm, ^{152,154,156,158,160}Gd, ^{154,156,158,160,162,164}Dy, ^{156,158,160,162,164,166,168,170}Er, ^{160,162,164,166,168,170,172,174,176}Yb, ^{162,164,166,168,170,172,174,176,178,180,182,184,186}Hf, ^{166,168,170,172,174,176,178,180,182,184,186,188}W, ^{170,172,174,176,178,180,182,184,186,188,190}Os, ^{176,178,180,182,184,186,188,190}Pt; calculated quasiparticle levels. Rare earth nuclei, cranked shell model dictionary.

doi: 10.1016/0092-640X(86)90028-8
Citations: PlumX Metrics

1984BE12      Nucl.Phys. A415, 189 (1984)

R.Bengtsson, H.Frisk, F.R.May, J.A.Pinston

Signature Inversion - A Fingerprint of Triaxiality

NUCLEAR STRUCTURE ¹⁵⁴Tb; calculated routhians, signature splitting vs deformation. ¹⁵²Eu, ¹⁵⁶Tb; calculated signature splitting. ¹⁵²Eu, ^153,155Gd, ^154,156Tb, ^155,157Dy, ^156,158Ho, ^157,159Er, ^155,157Tm, ^159,161Yb; analyzed spin inversion, band crossing frequency data; deduced triaxiality dependence.

doi: 10.1016/0375-9474(84)90620-1
Citations: PlumX Metrics

1984ST08      Nucl.Phys. A419, 589 (1984)

J.Stachel, P.Hill, N.Kaffrell, H.Emling, H.Grein, E.Grosse, Ch.Michel, H.-J.Wollersheim, D.Schwalm, S.Brussermann, F.R.May

Collective and Single-Particle Degrees of Freedom in ¹⁰⁴Ru

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁰⁴Ru, ¹⁰⁴Ru'), E=4.6 MeV/nucleon; measured σ(Eγ, θγ, θp), pγγ-coin, pγ(θ), oriented nuclei. ¹⁰⁴Ru deduced levels, J, B(E2), quadrupole moment. Enriched targets.

doi: 10.1016/0375-9474(84)90635-3
Citations: PlumX Metrics

1983FR13      Phys.Lett. 125B, 245 (1983)

S.Frauendorf, F.R.May

Triaxial Shapes of Rotating Nuclei with Neutron Numbers 88, 89, 90

NUCLEAR STRUCTURE ^154,155,156Dy, ^155,156,157Ho; analyzed rotational levels; deduced equilibrium (γ)-values, quasiparticle configuration competition. Cranked shell model.

doi: 10.1016/0370-2693(83)91277-7
Citations: PlumX Metrics

1983KE10      Z.Phys. A313, 367 (1983)

P.Kemnitz, J.Doring, L.Funke, F.R.May, P.Ojeda, E.Will, G.Winter

Evidence for Non-Axial Shapes in ^81,82,83Kr

NUCLEAR REACTIONS ⁸⁰Se(α, 2n), E=21-27 MeV; measured γ-linear polarization, γγ-coin, γ(θ), DSA, σ(Eγ). ⁸²Kr deduced levels, T_1/2, J, π, configurations, B(E2), γ-branching, band structure, shape characteristics.

doi: 10.1007/BF01439492
Citations: PlumX Metrics

1982FU03      Phys.Lett. 108B, 243 (1982)

L.Funke, J.Doring, S.Frauendorf, P.Kemnitz, F.R.May, E.Will, G.Winter

On the Interaction of the s-Band with the Ground State and Gamma Band in Nuclei around Mass 80

NUCLEAR STRUCTURE ^80,81Kr, ⁸¹Rb, ⁸²Sr; calculated rotational bands; deduced intra-band interaction strength oscillations. Cranked shell model.

doi: 10.1016/0370-2693(82)91184-4
Citations: PlumX Metrics

1982HA46      Nucl.Phys. A389, 341 (1982)

U.Hagemann, L.Kaubler, H.-J.Keller, F.R.May, H.Prade, F.Stary

Investigation of ¹²¹I Levels Observed in the (³He, 3n) Reaction

NUCLEAR REACTIONS ¹²¹Sb(³He, 3n), E=24.3, 27.5, 29.9, 32.0 MeV; measured E(γ), I(γ), σ(E, Eγ, θγ), ³Heγ(t), γγ-coin, Iγ(θ, t, H). ¹²¹I deduced levels, J, π, T_1/2, g. Enriched ¹²¹Sb target, Ge(Li) detectors. Core-quasiparticle coupling calculations.

NUCLEAR STRUCTURE ¹²¹I; calculated potential energy surfaces, levels. Core-quasiparticle coupling model, angular momentum projection.

doi: 10.1016/0375-9474(82)90523-1
Citations: PlumX Metrics

1978JA03      Phys.Lett. 73B, 271 (1978)

D.Janssen, F.R.May, I.N.Mikhailov, R.G.Nazmitdinov

Two-Phase Model of Rotating Nuclei

NUCLEAR STRUCTURE ¹⁵⁶Er; calculated B(E2).

doi: 10.1016/0370-2693(78)90511-7
Citations: PlumX Metrics

1978SC10      Nucl.Phys. A299, 189 (1978)

K.D.Schilling, L.Kaubler, W.Andrejtscheff, T.M.Muminov, V.G.Kalinnikov, N.Z.Marupov, F.R.May, W.Seidel

Electromagnetic Transitions in Some Doubly Odd Deformed Nuclei

RADIOACTIVITY ^156,158Er, ^162mHo, ¹⁶²Yb [from Ta+p, Ep=660 MeV]; measured γce-delay. ^156,158,162Ho, ¹⁶²Tm levels deduced T_1/2, B(λ). Natural targets. Plastic scintillators, magnetic lens β-spectrometer.

NUCLEAR REACTIONS ¹⁶⁰Gd, ^162,164Dy, ¹⁷⁸Hf(p, n), E=8-10 MeV; ^162,164Dy(d, 2n), E=13.5 MeV; ¹⁷⁶Lu(α, 2n), E=27 MeV; ¹⁵⁹Tb, ¹⁶⁵Ho, ^185,187Re(n, γ), E=thermal; measured γγ-, dγ-, αγ-delay. ¹⁶⁰Tb, ^162,164,166Ho, ¹⁷⁸Ta, ^186,188Re levels deduced T_1/2, B(λ). Enriched targets. Plastic, NaI(Tl) scintillators, Ge(Li) detectors.

doi: 10.1016/0375-9474(78)90028-3
Citations: PlumX Metrics

1977MA14      Phys.Lett. 68B, 113 (1977)

F.R.May, V.V.Pashkevich, S.Frauendorf

A Prediction on the Shape Transitions in Very Neutron-Deficient Even-Mass Isotopes in the Lead Region

NUCLEAR STRUCTURE ^{184,186,188,190,192}Pb, ^{188,190,192,194,196,198}Pt, ^{188,190,192,194,196}Po; calculated equilibrium shapes of yrast states.

doi: 10.1016/0370-2693(77)90179-4
Citations: PlumX Metrics

1975FR10      Nucl.Phys. A243, 9 (1975)

W.D.Fromm, H.F.Brinckmann, F.Donau, C.Heiser, F.R.May, V.V.Pashkevich, H.Rotter

Level Structure in ¹¹⁷Sb Investigated in the Decay of the Isomeric Three-Quasiparticle State

NUCLEAR REACTIONS ¹¹⁵In(α, 2nγ), E=21, 23, 25, 27 MeV; ¹¹⁷Sn(d, 2nγ), E=13.5 MeV; ¹¹⁷Sn(p, nγ), E=6.7 MeV; measured Eγ, Iγ, γ(θ), γ(t), γγ-coin, γ(θ, H, t), E(ce), I(ce); deduced ICC. ¹¹⁷Sb deduced levels, J, π, T_1/2, μ. Enriched targets, Ge(Li), Si(Li) detectors.

doi: 10.1016/0375-9474(75)90018-4
Citations: PlumX Metrics

1974MA45      Yad.Fiz. 20, 873 (1974); Sov.J.Nucl.Phys. 20, 465 (1975)

F.-R.May, L.Munchow, S.Frauendorf

Phenomenological Description of Rotational Bands in Odd Nuclei by the Angular Momentum Projection Method

NUCLEAR STRUCTURE ^155,157,159Tb, ¹⁵⁵Gd, ^{157,159,161,163,165}Ho, ¹⁶¹Er, ^167,169Tm, ¹⁶⁹Yb, ^171,173Lu, ^171,173,175Hf, ^177,179Ta, ^181,183Re, ¹⁸⁵Os; calculated projection model parameters for rotational bands.

1973AN09      Phys.Lett. 44B, 351 (1973)

W.Andrejtscheff, F.-R.May, L.Munchow, S.Frauendorf

The Influence of 1QP-State Equilibrium Deformations on E1 Transition Probabilities

NUCLEAR STRUCTURE ^171,173Lu; calculated E1 transition probabilities.

doi: 10.1016/0370-2693(73)90404-8
Citations: PlumX Metrics

1973MA60      Izv.Akad.Nauk SSSR, Ser.Fiz. 37, 1860 (1973); Bull.Acad.Sci.USSR, Phys.Ser. 37, No.9, 57 (1974)

F.R.May, L.Munchow, S.Frauendorf

Mixing of Bands with ΔK > 1

NUCLEAR STRUCTURE ¹⁷¹Lu; calculated levels, band mixing.