NSR Query Results
Output year order : Descending NSR database version of May 3, 2024. Search: Author = T.Spedstad-Tveter Found 11 matches. 1999GR28 Eur.Phys.J. A 6, 269 (1999) P.T.Greenlees, P.Kuusiniemi, N.Amzal, A.Andreyev, P.A.Butler, K.J.Cann, J.F.C.Cocks, O.Dorvaux, T.Enqvist, P.Fallon, B.Gall, M.Guttormsen, D.Hawcroft, K.Helariutta, F.P.Hessberger, F.Hoellinger, G.D.Jones, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, M.Leino, S.Messelt, M.Muikku, S.Odegard, R.D.Page, A.Savelius, A.Schiller, S.Siem, W.H.Trzaska, T.Tveter, J.Uusitalo Fine Structure in the Alpha Decays of 226U and 230Pu RADIOACTIVITY 226U(α) [from 208Pb(22Ne, 4n)]; 230Pu(α) [from 208Pb(26Mg, 4n)]; measured Eα, Iα, T1/2; deduced branching ratios, hindrance factors. 226U deduced level energy, deformation. Comparisons with neighboring nuclides.
doi: 10.1007/s100500050345
1998GR19 J.Phys.(London) G24, L63 (1998) P.T.Greenlees, N.Amzal, P.A.Butler, K.J.Cann, J.F.C.Cocks, D.Hawcroft, G.D.Jones, R.D.Page, A.Andreev, T.Enqvist, P.Fallon, B.Gall, M.Guttormsen, K.Helariutta, F.Hoellinger, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, S.Messelt, M.Muikku, A.Savelius, A.Schiller, S.Siem, W.H.Trzaska, T.Tveter, J.Uusitalo First Observation of Excited States in 226U NUCLEAR REACTIONS 208Pb(22Ne, 4n), E=112 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. 226U deduced levels, J, π, rotational bands, E1 transitions, octupole deformation. Recoil-decay tagging technique.
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1997MA03 Nucl.Phys. A612, 262 (1997) M.Mattiuzzi, A.Bracco, F.Camera, W.E.Ormand, J.J.Gaardhoje, A.Maj, B.Million, M.Pignanelli, T.Tveter Angular Momentum Dependence of the GDR Width in Sn Nuclei at Fixed Excitation Energy NUCLEAR REACTIONS 48Ti(58Ni, X), E=260 MeV; measured high energy γ(evaporation residue)-coin. 106Sn deduced GDR width angular dependence. Adiabatic model, thermal fluctuations, 176W GDR features analyzed.
doi: 10.1016/S0375-9474(96)00335-1
1996BR08 Nucl.Phys. A599, 83c (1996) A.Bracco, F.Camera, M.Mattiuzzi, D.Gnaccolini, B.Million, J.J.Gaardhoje, A.Maj, T.Tveter Thermal Fluctuation and Collisional Damping Effects in the Hot Giant Dipole Resonance NUCLEAR STRUCTURE 109,110Sn; analyzed GDR width. 166,165Er; analyzed γ-spectra, dipole strength function; deduced GDR damping mechanism in hot nuclei.
doi: 10.1016/0375-9474(96)00049-8
1995BR11 Phys.Rev.Lett. 74, 3748 (1995) A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli, J.J.Gaardhoje, A.Maj, T.Ramsoy, T.Tveter, Z.Zelazny Increase in Width of the Giant Dipole Resonance in Hot Nuclei: Shape change or collisional damping ( Question ) NUCLEAR REACTIONS 62,61Ni(48Ti, X), E=223, 203 MeV; measured γ(θ), strength function. 109,110Sn deduced GDR, Γ.
doi: 10.1103/PhysRevLett.74.3748
1995BR19 Acta Phys.Pol. B26, 407 (1995) A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli, J.J.Gaardhoje, T.Ramsoy, T.Tveter, Z.Zelazny, A.Maj The Damping of the GDR at Finite Temperature: Recent progress NUCLEAR REACTIONS 70Zn(36Ar, X), E=27 MeV/nucleon; 62,61Ni(48Ti, X), E=203, 223 MeV; 148Nd(28Si, X), E=147 MeV; compiled, reviewed γ-spectra data; deduced GDR damping, other characteristic vs T for mass 110, 170. Hot rotating nuclei.
1995JE04 Nucl.Phys. A593, 162 (1995) D.Jerrestam, B.Fogelberg, A.Kerek, W.Klamra, F.Liden, L.O.Norlin, J.Kownacki, D.Seweryniak, Z.Zelazny, C.Fahlander, J.Nyberg, M.Guttormsen, J.Rekstad, T.Spedstad-Tveter, A.Gizon, J.Gizon, R.Bark, G.Sletten, M.Piiparinen, Z.Preibisz, T.F.Thorsteinsen, E.Ideguchi, S.Mitarai In-Beam Spectroscopic Studies of the Nucleus 105Cd NUCLEAR REACTIONS 106Cd(p, np), E=30 MeV; 106Cd(3He, 2n2p), E=75 MeV; 92Zr(16O, 3n), E=77 MeV; 76Ge(34S, 5n), E=148 MeV; measured γγ, γγ(particle)-coin, Eγ, Iγ, DCO ratios. 105Cd deduced levels, J, π, band structure, configuration. Compton suppressed Ge-detector array. Model calculations.
doi: 10.1016/0375-9474(95)00334-W
1995MA55 Acta Phys.Pol. B26, 467 (1995) M.Mattiuzzi, A.Bracco, F.Camera, B.Million, J.J.Gaardhoje, A.Maj, T.Tveter, Z.Zelazny Angular Momentum Dependence of the GDR Observables of A = 170 Nuclei at Finite Temperature NUCLEAR REACTIONS 148Nd(28Si, X), E=147 MeV; measured Eγ, Iγ(θ), strength function. 176W deduced GDR observables angular momentum at finite temperature dependence.
1995MA84 Phys.Lett. 364B, 13 (1995) M.Mattiuzzi, A.Bracco, F.Camera, B.Million, M.Pignanelli, J.J.Gaardhoje, A.Maj, T.Ramsoy, T.Tveter, Z.Zelazny Thermal Fluctuation and Collisional Damping Effects in the GDR Observables in Hot Rotating 176W Nuclei NUCLEAR REACTIONS 148Nd(28Si, X), E=147 MeV; measured γγ-coin, Eγ, Iγ. 176W deduced GDR width, thermal fluctuation, collisional damping effects role.
doi: 10.1016/0370-2693(95)01230-5
1994BR08 Nucl.Phys. A569, 51c (1994) A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli, C.Volpe, J.J.Gaardhoje, A.Maj, Z.Zelazny, T.Tveter Thermal and Quantal Fluctuations as Probed by the GDR Observables NUCLEAR REACTIONS 61,62Ni(48Ti, X), E not given; analyzed Iγ(θ), γ strength function data. 110Sn deduced GDR parameters.
doi: 10.1016/0375-9474(94)90095-7
1993GA06 Acta Phys.Pol. B24, 139 (1993) J.J.Gaardhoje, A.Maj, T.Tveter, Z.Zelazny, F.Camera, A.Bracco, B.Million, M.Pignanelli Atomic Nuclei at High Excitation Energy Studied with Giant Resonances NUCLEAR REACTIONS 70Ge(40Ar, X), E=10 MeV/nucleon; 93Nb(19F, X), E=80-160 MeV; 94Mo(16O, X), E=140 MeV; analyzed γ-decay data; deduced features of time for equilibration, collective motion build up, nucleonic, large scale mass arrangements. GDR decay, other systems studied.
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