NSR Query Results
Output year order : Descending NSR database version of May 3, 2024. Search: Author = P.O.Lipas Found 39 matches. 2000OI04 Hyperfine Interactions 127, 431 (2000) M.Oinonen, Y.Jading, U.Koster, J.Lettry, H.Ravn, J.Aysto, P.Dendooven, J.Huikari, A.Jokinen, P.O.Lipas, A.Nieminen, K.Perajarvi, T.Siiskonen, P.Baumann, A.Huck, A.Knipper, M.Ramdhane, G.Walter, F.Didierjean, V.N.Fedoseyev, V.I.Mishin, M.Koizumi, W.Liu, E.Roeckl, V.Sebastian, and the ISOLDE Collaboration Laser ionization in β-decay studies of Zn and Mn nuclei RADIOACTIVITY 58Zn(EC) [from Nb(p, X)]; measured Eγ, Iγ; deduced log ft. 58Cu levels deduced configurations. Resonance ionization laser ion source. NUCLEAR REACTIONS Nb, U(p, X), E=1 GeV; measured yields of Mn and Zn isotopes. Resonance ionization laser ion source.
doi: 10.1023/A:1012617717682
2000PE28 Phys.Lett. 492B, 1 (2000) K.Perajarvi, T.Siiskonen, A.Honkanen, P.Dendooven, A.Jokinen, P.O.Lipas, M.Oinonen, H.Penttila, J.Aysto Measurement of the IAS Resonance Strength in 23Mg RADIOACTIVITY 23Al(EC), (β+p) [from 24Mg(p, 2n)]; measured Eγ, Iγ, β-delayed proton spectra, pγ-coin. 23Mg deduced levels, J, π, β-branching ratios, proton emission intensities, IAS resonance strength. Comparison with shell model. Mass-separated source. NUCLEAR REACTIONS 24Mg(p, X)23Al/23Mg/20Na/24Al, E=40 MeV; measured production rates.
doi: 10.1016/S0370-2693(00)01074-1
2000SI14 Phys.Rev. C61, 057302 (2000) Tests of Shell-Model Truncation Methods NUCLEAR STRUCTURE 28Si, 28Al, 40Mg; calculated binding energies, transitions B(E2). Shell model, truncation methods compared.
doi: 10.1103/PhysRevC.61.057302
1999SI13 Phys.Rev. C60, 034312 (1999) T.Siiskonen, P.O.Lipas, J.Rikovska Shell-Model and Hartree-Fock Calculations for Even-Mass O, Ne, and Mg Nuclei NUCLEAR STRUCTURE 18,20,22,24,26,28,30O, 18,20,22,24,26,28,30,32,34,36,38,40Ne, 20,22,24,26,28,30,32,34,36,38,40,42,44,46,48Mg; calculated binding energies, Q, μ, 2+ level energies. Shell model and Hartree-Fock approaches.
doi: 10.1103/PhysRevC.60.034312
1998AX02 Nucl.Phys. A634, 475 (1998); Erratum Nucl.Phys. A641, 529 (1998) L.Axelsson, J.Aysto, M.J.G.Borge, L.M.Fraile, H.O.U.Fynbo, A.Honkanen, P.Hornshoj, A.Jokinen, B.Jonson, P.O.Lipas, I.Martel, I.Mukha, T.Nilsson, G.Nyman, B.Petersen, K.Riisager, M.H.Smedberg, O.Tengblad, and the ISOLDE Collaboration Beta Decay of 31Ar RADIOACTIVITY 31Ar(β+p) [from 1 GeV p on CaO powder target]; measured βp-, βγ-coin, Ep, Ip. 31Cl deduced levels, branching, log ft, Gamow-Teller strength, IAS. OXBASH shell-model calculations, Gamow-Teller quenching, isospin mixing.
doi: 10.1016/S0375-9474(98)00172-9
1998JO18 Eur.Phys.J. A 3, 271 (1998) A.Jokinen, M.Oinonen, J.Aysto, P.Baumann, P.Dendooven, F.Didierjean, V.Fedoseyev, A.Huck, Y.Jading, A.Knipper, M.Koizumi, U.Koster, J.Lettry, P.O.Lipas, W.Liu, V.Mishin, M.Ramdhane, H.Ravn, E.Roeckl, V.Sebastian, G.Walter, and the ISOLDE Collaboration Beta Decay of the MT = -1 Nucleus 58Zn Studied by Selective Laser Ionization RADIOACTIVITY 58Zn(β+) [from Nb(p, X), E=1 GeV]; measured Eγ, Iγ, βγ-coin, T1/2. 58Cu levels deduced branching, Gamow-Teller strengths. Laser ion source. Comparison with reaction data. Shell model calculations.
doi: 10.1007/s100500050177
1998JO20 Nuovo Cim. 111A, 1083 (1998) A.Jokinen, J.Aysto, P.Dendooven, S.Hankonen, A.Honkanen, J.Huikari, G.Lhersonneau, P.O.Lipas, H.Penttila, K.Perajarvi, M.Oinonen, A.Nieminen, T.Siiskonen, J.C.Wang High-Resolution Studies of Beta-Delayed Proton Emitters at IGISOL Facility RADIOACTIVITY 23Al(β+) [from 24Mg(p, 2n)]; measured Eγ, Iγ, β-delayed proton spectra. 23Mg deduced IAS resonance strength. 41Ti(β+) [from 40Ca(3He, 2n)]; measured β-delayed proton spectra. 41Sc deduced Gamow-Teller strength distribution. Mass-separated sources.
doi: 10.1007/BF03035996
1997HO12 Nucl.Phys. A621, 689 (1997) A.Honkanen, P.Dendooven, M.Huhta, G.Lhersonneau, P.O.Lipas, M.Oinonen, J.-M.Parmonen, H.Penttila, K.Perajarvi, T.Siiskonen, J.Aysto High-Resolution Study of the Beta Decay of 41Ti RADIOACTIVITY 41Ti(β+) [from 40Ca(3He, 2n), E=40 MeV]; measured β-delayed Ep, Ip, γ spectra; deduced log ft, 41Sc deduced Gamow-Teller strength, isospin mixing. OXBASH shell-model calculations. ΔE(gas)E(Si) telescope, Si, hyperpure Ge, plastic scintillator detectors.
doi: 10.1016/S0375-9474(97)00180-2
1995KO33 Nucl.Phys. A591, 421 (1995) M.Koskinen, P.O.Lipas, M.Manninen Unrestricted Shapes of Light Nuclei in the Local-Density Approximation: Comparison with jellium clusters NUCLEAR STRUCTURE Z=2-22; N=2-22; calculated total energy per particle, intrinsic quadrupole moments. Density functional theory, Kohn-Sham method, local-density approximation.
doi: 10.1016/0375-9474(95)00209-J
1992FU04 Nucl.Phys. A541, 241 (1992) L.Funke, G.Winter, J.Doring, L.Kaubler, H.Prade, R.Schwengner, Ch.Protochristov, W.Andrejtscheff, L.G.Kostova, P.O.Lipas, R.Wirowski Neutron-Core Excitations in the N = 50 Nucleus 89Y NUCLEAR REACTIONS 87Rb(α, 2n), E=16-27 MeV; measured Eγ, Iγ, σ(E, Eγ, θ), γγ-coin, γ-ray linear polarization, DSA, γ(t). 89Y deduced levels, J, π, T1/2, δ(E2/M1), B(λ). Enriched targets, Ge detectors. Shell model description.
doi: 10.1016/0375-9474(92)90096-3
1991LI09 J.Phys.(London) G17, 971 (1991); Corrigenda J.Phys.(London) G17, 1943 (1991) P.O.Lipas, H.Harter, R.Nojarov, A.Faessler, M.Koskinen Boson-Model M1 Form Factors for Inelastic Electron Scattering on 130,132,134Ba NUCLEAR STRUCTURE 130,132,134Ba, 164Dy; calculated transition current densities. Proton-neutron interacting boson model. NUCLEAR REACTIONS 130,132,134Ba, 164Dy(e, e'), E not given; calculated form factors. Proton-neutron interacting boson model.
doi: 10.1088/0954-3899/17/6/017
1991NO04 Nucl.Phys. A533, 381 (1991); Erratum Nucl.Phys. A537, 707 (1992) R.Nojarov, A.Faessler, P.O.Lipas M1 Strength and (e, e') Form Factors of 46,48Ti within the RPA NUCLEAR STRUCTURE 46,48Ti; calculated B(M1). Quasiparticle RPA. NUCLEAR REACTIONS 46,48Ti(e, e'), E not given; calculated transition current densities. Quasiparticle RPA, deformed Woods-Saxon potential.
doi: 10.1016/0375-9474(91)90524-A
1990FR15 J.Phys.(London) G16, 1653 (1990) General Projection from IBA-2 to IBA-1 NUCLEAR STRUCTURE A ≈ 50; calculated δ(E2/M1). 54Cr, 58Fe, 46Ti; analyzed δ(E2/M1); deduced F-spin multiplets. F-spin analysis.
doi: 10.1088/0954-3899/16/11/015
1990LI07 Nucl.Phys. A509, 509 (1990) P.O.Lipas, M.Koskinen, H.Harter, R.Nojarov, A.Faessler Microscopic IBA Calculations of (e, e') M1 Form Factors NUCLEAR STRUCTURE 154Sm, 154,156,158Gd, 164Dy, 168Er; calculated B(M1), g-factors. 164Dy; calculated form factors. Microscopic interacting boson model.
doi: 10.1016/0375-9474(90)90089-5
1990LI31 J.Phys.(London) G16, 1669 (1990) Quadratic M1 Operator in the IBA NUCLEAR STRUCTURE 162,164,166,168Er; calculated quadratic M1 operator related parameters. Interacting boson model, U(5) limit.
doi: 10.1088/0954-3899/16/11/016
1989LI20 Phys.Lett. 230B, 1 (1989) P.O.Lipas, M.Koskinen, H.Harter, R.Nojarov, A.Faessler Magnetic Dipole Transitions and Spin Currents in Inelastic Electron Scattering NUCLEAR STRUCTURE 164Dy; calculated M1 transition current density. Microscopic interacting boson approximation.
doi: 10.1016/0370-2693(89)91642-0
1988HA18 Phys.Lett. 205B, 175 (1988) H.Harter, P.O.Lipas, R.Nojarov, Th.Taigel, A.Faessler Isovector States in 128-134Ba NUCLEAR STRUCTURE 128,130,132,134Ba; calculated levels, B(λ), β2, pairing gaps, quadrupole moments. 130,132,134Ba deduced doublet. Interacting boson model.
1988VA04 Nucl.Phys. A476, 301 (1988) P.Van Isacker, P.O.Lipas, K.Helimaki, I.Koivistoinen, D.D.Warner IBM-2 Description of M1 Properties in Deformed Nuclei NUCLEAR STRUCTURE 152Sm, 154,156Gd, 160,162Dy, 166,168Er, 184W; calculated B(E2) ratios, M1 reduced matrix elements.
doi: 10.1016/0375-9474(88)90486-1
1987LI11 Nucl.Phys. A469, 348 (1987) P.O.Lipas, P.Toivonen, E.Hammaren IBA-1 Calculations of E2/M1 Mixing Ratios NUCLEAR STRUCTURE 146,148,150,152Sm, 152,154,156Gd, 162Dy, 162,164,166,168Er, 172Yb, 190Os; calculated levels, δ(E2/M1). Interacting boson approximation.
doi: 10.1016/0375-9474(87)90115-1
1986PA14 J.Phys.(London) G12, 1047 (1986) A.Passoja, J.Kantele, M.Luontama, R.Julin, E.Hammaren, P.O.Lipas, P.Toivonen Electromagnetic Decay of 02+ and O3+ States in the N = 88-90 Nuclei of 150,152Sm RADIOACTIVITY 152m,150mEu(EC), (β+), (β-) [from 150Sm(p, n), E=9.5 MeV; 151Eu(n, γ), E=thermal]; measured Iγ, Eγ, I(ce), I(ce)(X-ray)-coin. 150,152Sm deduced levels, J, π, B(λ), E0 strength parameter. Enriched targets, Ge(Li) detectors, magnetic plus Si-Li conversion electron spectrometer. Interacting boson model.
doi: 10.1088/0305-4616/12/10/013
1985LI10 Phys.Lett. 155B, 295 (1985) P.O.Lipas, P.Toivonen, D.D.Warner IBA Consistent-Q Formalism Extended to the Vibrational Region NUCLEAR STRUCTURE 152Gd; calculated level energy, B(E2) ratios. Interacting boson approximation model, vibrational region extension.
doi: 10.1016/0370-2693(85)91573-4
1985LI20 Phys.Lett. 165B, 244 (1985) IBA-2 Calculation of E2/M1 Mixing Ratios in 156Gd NUCLEAR STRUCTURE 156Gd; calculated levels, B(λ), δ(E2/M1). Interacting boson model.
doi: 10.1016/0370-2693(85)91222-5
1985SU01 Phys.Lett. 150B, 327 (1985) An Extended Phonon Projection Model for Even-Even Nuclei NUCLEAR STRUCTURE 148,150,152Sm; calculated levels, B(E2). Extended phonon projection model.
doi: 10.1016/0370-2693(85)90986-4
1985SU08 Nucl.Phys. A442, 189 (1985) Extended Phonon Projection Model and Its Application to the Mass Region A = 142-174 NUCLEAR STRUCTURE 146,148,150,152,154Sm; calculated levels, B(E2), spectroscopic quadrupole moments. Extended phonon projection model.
doi: 10.1016/0375-9474(85)90141-1
1984KR02 J.Phys.(London) G10, 571 (1984) T.I.Kracikova, M.Finger, V.N.Pavlov, V.A.Deryuga, P.O.Lipas, E.Hammaren, P.Toivonen Nuclear Orientation Study of the Decay of 146Eu RADIOACTIVITY 146Eu(EC), (β+) [from Er(p, X), E=660 MeV]; measured γ(θ), oriented nuclei; deduced orientation coefficients. 146Sm deduced levels, J, π, δ, B(λ), X(E0/E2). Interacting boson approximation model.
doi: 10.1088/0305-4616/10/4/017
1984KR09 J.Phys.(London) G10, 667 (1984) T.I.Kracikova, M.Finger, J.Konicek, N.A.Lebedev, V.A.Deryuga, P.O.Lipas, E.Hammaren, P.Toivonen Nuclear Orientation Study of the Decay of 148Eu NUCLEAR STRUCTURE 148Sm; calculated levels, δ, B(E2), X(E0/E2), quasirotational band structure. Interacting boson model. RADIOACTIVITY 148Eu(EC), (β+), (α) [from Er(p, X), E=660 MeV]; measured γ(θ), oriented nuclei. 148Sm deduced levels, J, π, δ, X(E0/E2). Interacting boson model.
doi: 10.1088/0305-4616/10/5/010
1984KR14 J.Phys.(London) G10, 1115 (1984) T.I.Kracikova, S.Davaa, M.Finger, M.I.Fominykh, W.D.Hamilton, P.O.Lipas, E.Hammaren, P.Toivonen Nuclear Orientation Study of the Decay of 172Lu RADIOACTIVITY 172Lu(EC) [from Ta(p, X)172Hf(EC-decay)]; measured Eγ, Iγ, γ(θ), oriented nuclei. 172Yb levels deduced J, π, γ-branching, δ, X(E0/E2), monopole transition density. Mass separated source implantation in Gd, Fe, 3He-4He dilution refrigerator, Ge(Li) detectors. Interacting boson model.
doi: 10.1088/0305-4616/10/8/016
1984LI06 Phys.Lett. 139B, 10 (1984) P.O.Lipas, E.Hammaren, P.Toivonen IBA-1 Calculation of E2/M1 Mixing Ratios in 154Gd NUCLEAR STRUCTURE 154Gd; calculated reduced (E2/M1) mixing ratio. Generalized interacting boson approximation.
doi: 10.1016/0370-2693(84)90023-6
1984LI13 ATOMKI Kozlem. 26, 93 (1984) IBA Calculations of Multipole Mixing Ratios NUCLEAR STRUCTURE 146,148,150,152Sm, 154Gd, 162Dy, 162,164,166,168Er, 172Yb; calculated B(λ), δ, X(E0/E2). Interacting boson model.
1983LI06 Phys.Scr. 27, 8 (1983) P.O.Lipas, J.Kumpulainen, E.Hammaren, T.Honkaranta, M.Finger, T.I.Kracikova, I.Prochazka, J.Ferencei Study of Even Gd Nuclei by Decay of Oriented Tb, with Analysis by Simple Boson Models NUCLEAR STRUCTURE 150,152,154,156,158,160Gd; calculated levels, B(E2), monopole transition densities, B(E2)/B(E0). Interacting boson model. RADIOACTIVITY 150,152,154Tb(EC), (β+), 156Tb(EC) [from Ta(p, X), E=660 MeV]; measured γ(θ), oriented nuclei. 150,152,154,156Gd deduced levels, J, π, γ-multipolarity, δ, rotational band characteristics. TbGd samples, dilution refrigeration. Interacting boson model.
doi: 10.1088/0031-8949/27/1/002
1983PA05 Phys.Lett. 124B, 157 (1983) A.Passoja, J.Kantele, M.Luontama, J.Kumpulainen, R.Julin, P.O.Lipas, P.Toivonen Disproof of the Alleged Two-Phonon Character of the O+2 State in 64Zn RADIOACTIVITY 64Ga(β+), (EC); measured I(ce). 64Zn deduced level. NUCLEAR REACTIONS 64Zn(p, p'), E=5.9-6.9 MeV; measured Eγ, Iγ, γp-coin. 64Zn deduced γ-branching, B(E2), B(E0)/B(E2), monopole transition strengths, 0+ level T1/2. Discussed inadequacy of existing nuclear models.
doi: 10.1016/0370-2693(83)91425-9
1976LI21 Phys.Scr. 13, 339 (1976) P.O.Lipas, P.Haapakoski, T.Honkaranta A Unified Phenomenological Description of Quadrupole Excitations in Even-Even Nuclei NUCLEAR STRUCTURE 152Sm, 152Gd, 114Cd; calculated levels, K, quadrupole moment, B(E2). Unified phenomenological description.
doi: 10.1088/0031-8949/13/6/003
1972FO24 Phys.Scr. 6, 259 (1972) T.Fogel, P.Haapakoski, P.O.Lipas A Phonon Cranking Model
doi: 10.1088/0031-8949/6/5-6/010
1972GU09 Phys.Lett. 40A, 297 (1972) D.F.Gumprecht, T.E.Katila, L.C.Moberg, P.O.Lipas A Mossbauer Observation of the Magnetic Moment of the 89 keV Excited State of 119Sn NUCLEAR REACTIONS 119Sn(γ, γ), E=89 keV; measured Mossbauer effect. 119Sn level deduced μ.
doi: 10.1016/0375-9601(72)90579-8
1972LI35 Comment.Phys.-Math. 42, 251 (1972) Nuclear Projection Model with Anisotropy NUCLEAR STRUCTURE 152Sm; calculated levels.
1970HA17 Phys.Lett. 31B, 493 (1970) P.Haapakoski, T.Honkaranta, P.O.Lipas Projection Model for Ground Bands of Even-Even Nuclei NUCLEAR STRUCTURE 152Gd, 152Sm; calculated ground-state bands. Peierls-Yoccoz angular momentum projection method.
doi: 10.1016/0370-2693(70)90071-7
1970RA15 Nucl.Phys. A149, 11 (1970) A.Raduta, A.Sandulescu, P.O.Lipas Semi-Microscopic Theory of Two-Phonon Quadrupole-Octupole Vibrations in Spherical Nuclei NUCLEAR STRUCTURE 114Sn; calculated levels, two-phonon quadrupole-octupole vibrations.
doi: 10.1016/0375-9474(70)90374-X
1968HO28 Nucl.Phys. A117, 552 (1968) A New Formula for Rotational Energies NUCLEAR STRUCTURE 158Dy, 166Hf, 172,180W, 152Sm, 154,156Gd, 170Hf, 184Pt, 238U, 122Xe, 126Ba; calculated ground-state rotational bands. Hydrodynamic model.
doi: 10.1016/0375-9474(68)90830-0
1963LI02 Nucl.Phys. 40, 629 (1963) Vibrational E1, E2 and E3 Transitions in Deformed Even Nuclei
doi: 10.1016/0029-5582(63)90307-9
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