NSR Query Results

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NSR database version of April 26, 2024.

Search: Author = A.J.Aas

Found 12 matches.

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2016MA40      Eur.Phys.J. A 52, 172 (2016)

H.Mach, A.Lindroth, E.Ruchowska, J.Kvasil, B.Fogelberg, K.Gulda, A.J.Aas, M.J.G.Borge, I.S.Grant, E.Hagebo, W.Kurcewicz, T.Martinez, B.Rubio, J.F.Smith, K.Steffensen, J.L.Tain, O.Tengblad, T.F.Thorsteinsen

On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra

RADIOACTIVITY 223Fr(β-)[from 223Rn]; measured β-decay of (3/2)- and (5/2)- states (50 and 80 keV) Eγ, Iγ(t) using BaF2 crystal for timing and two Ge, Eβ, Iβ(t) using ΔE NE111A, βγ-coin; deduced time-delayed βγ(t) spectrum, T1/2, B(E1), B(E2), B(M1) for K=3/2 band states below 250 keV, intrinsic electric dipole moment D0; calculated T1/2, γ transition probabilities, B(E1), B(E2), B(M1), average electric dipole moment for 223,224Ra (and compared with available data for Ra isotopes), quadrupole and octupole vibration energies in 222,224Ra, structure of intrinsic states.

doi: 10.1140/epja/i2016-16172-4
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2008BO29      Nucl.Phys. A811, 244 (2008)

R.Boutami, M.J.G.Borge, H.Mach, W.Kurcewicz, L.M.Fraile, K.Gulda, A.J.Aas, L.M.Garcia-Raffi, G.Lovhoiden, T.Martinez, B.Rubio, J.L.Tain, O.Tengblad

Nuclear structure of 231Ac

RADIOACTIVITY 231Fr, 231Ra(β-) [from 238U(p, X), E=1 GeV and subsequent mass separation]; measured Eγ, Iγ, Eβ, γγ-, βγ-coin, T1/2; deduced log ft. 231Ac deduced levels, J, π, ICC, multipolarities, B(E1), B(M1), T1/2. Mini-orange spectrometer. Advanced Time Delayed βγγ(t) method.

doi: 10.1016/j.nuclphysa.2008.08.005
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2008SA05      Eur.Phys.J. A 35, 159 (2008)

M.Sanchez-Vega, H.Mach, R.B.E.Taylor, B.Fogelberg, A.Lindroth, A.J.Aas, P.Dendooven, A.Honkanen, M.Huhta, G.Lhersonneau, M.Oinonen, J.M.Parmonen, H.Penttila, J.Aysto, J.R.Persson, J.Kurpeta

Studies of quadrupole collectivity in the γ-soft 106Ru

RADIOACTIVITY 106Tc(β+) [from 238U(p, F), E=25 MeV]; measured Eγ, Iγ, γγ-, βγ-coin, T1/2, B(E2) using advanced time-delayed method. 106Ru deduced levels, J, π, T1/2. Comparison with various models.

doi: 10.1140/epja/i2007-10530-3
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2007BO48      Eur.Phys.J. Special Topics 150, 87 (2007)

R.Boutami, M.J.G.Borge, H.Mach, L.M.Fraile, K.Gulda, A.J.Aas, L.M.Garcia-Raffi, E.Hagebo, W.Kurcewicz, G.Lovhoiden, T.Martinez, B.Rubio, J.L.Tain, O.Tengblad

Structure of 231Ac: Measurements of level half-lives

RADIOACTIVITY 231Ra(β-) [from U(p, X), E=1 GeV]; measured Eγ, Iγ, γγ-coin, conversion electrons. 231Ac; deduced level energies, lifetimes.

doi: 10.1140/epjst/e2007-00273-9
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2005GI17      Phys.Rev. C 72, 044308 (2005)

A.Giannatiempo, A.Perego, P.Sona, A.Nannini, H.Mach, B.Fogelberg, M.J.G.Borge, O.Tengblad, L.M.Fraile, A.J.Aas, K.Gulda

Spectroscopy and lifetime measurements of states in 76Kr populated in 76Rb decay

RADIOACTIVITY 76Rb(β+), (EC) [from Nb(p, X)]; measured Eγ, Iγ, E(ce), I(ce), γγ-, βγ-coin; deduced log ft. 76Kr deduced levels J, π, T1/2, ICC. 76Rb deduced ground state J, π.

doi: 10.1103/PhysRevC.72.044308
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2005IS13      Yad.Fiz. 68, 1545 (2005); Phys.Atomic Nuclei 68, 1487 (2005)

V.I.Isakov, H.Mach, B.Fogelberg, K.I.Erokhina, A.J.Aas, E.Hagebo

Structure of States and Transition Rates in the Even-Even N = 82 Nucleus 136Xe

NUCLEAR STRUCTURE 136Xe; calculated levels, J, π, B(M1), B(E2). Quasiparticle RPA and shell model methods.

doi: 10.1134/1.2053332
Citations: PlumX Metrics

2002GU15      Nucl.Phys. A703, 45 (2002)

K.Gulda, W.Kurcewicz, A.J.Aas, M.J.G.Borge, D.G.Burke, B.Fogelberg, I.S.Grant, E.Hagebo, N.Kaffrell, J.Kvasil, G.Lovhoiden, H.Mach, A.Mackova, T.Martinez, G.Nyman, B.Rubio, J.L.Tain, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

The Nuclear Structure of 229Th

RADIOACTIVITY 229Ac(β-) [from 232Th(p, 4p) and 238U(p, 6p4n) and subsequent decay]; measured Eγ, Iγ, E(ce), I(ce), T1/2, βγ(t), (ce)γ-, γγ-coin. 229Th deduced levels, J, π, ICC, multipolarities, rotational bands, B(E1), B(E2), B(M1), dipole moments. Mini-orange spectrometer, advanced fast-timing techniques. Comparison with quasiparticle-phonon model predictions.

doi: 10.1016/S0375-9474(01)01456-7
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2001FR05      Nucl.Phys. A686, 71 (2001)

L.M.Fraile, M.J.G.Borge, H.Mach, R.Boutami, A.J.Aas, B.Fogelberg, L.M.Garcia-Raffi, I.S.Grant, K.Gulda, E.Hagebo, W.Kurcewicz, J.Kvasil, M.J.Lopez, G.Lovhoiden, T.Martinez, B.Rubio, J.L.Tain, O.Tengblad, and the ISOLDE Collaboration

Persistence of Octupole Correlations in 231Ra

RADIOACTIVITY 231Fr(β-) [from 238U(p, 2n6p)]; measured Eγ, Iγ, E(ce), I(ce), γγ-, (ce)γ-coin, T1/2. 231Ra deduced levels, J, π, ICC, multipolarities, rotational bands, B(E1), B(E2). Quasiparticle-plus-phonon model, BaF2 detectors, mini-orange spectrometer.

doi: 10.1016/S0375-9474(00)00572-8
Citations: PlumX Metrics

1999AA03      Nucl.Phys. A654, 499 (1999)

A.J.Aas, H.Mach, J.Kvasil, M.J.G.Borge, B.Fogelberg, I.S.Grant, K.Gulda, E.Hagebo, P.Hoff, W.Kurcewicz, A.Lindroth, G.Lovhoiden, A.Machova, T.Martinez, B.Rubio, M.Sanchez-Vega, J.F.Smith, J.L.Tain, R.B.E.Taylor, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

Quenched E1 Transition Rates in 231Th

RADIOACTIVITY 231Ac(β-); measured Eγ, Iγ, βγ-, γγ-coin, T1/2. 231Th deduced levels T1/2, B(λ), rotational bands. Fast-timing βγγ(t) method, quasiparticle-plus-phonon model.

doi: 10.1016/S0375-9474(99)00307-3
Citations: PlumX Metrics

1999FR33      Nucl.Phys. A657, 355 (1999)

L.M.Fraile, A.J.Aas, M.J.G.Borge, B.Fogelberg, L.M.Garcia-Raffi, I.S.Grant, K.Gulda, E.Hagebo, W.Kurcewicz, J.Kvasil, G.Lovhoiden, H.Mach, A.Mackova, T.Martinez, B.Rubio, J.L.Tain, A.G.Teijeiro, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

Octupole Correlations in 229Ra

RADIOACTIVITY 229Fr(β-) [from 238U(p, 4n6p)]; measured Eγ, Iγ, I(ce), γγ-coin, T1/2. 229Ra deduced levels, J, π, ICC, multipolarities, rotational bands, B(λ). Ge, Si(Li) detectors, mini-orange spectrometer, quasiparticle-plus-phonon model.

doi: 10.1016/S0375-9474(99)00330-9
Citations: PlumX Metrics

1997KU20      Nucl.Phys. A621, 827 (1997)

W.Kurcewicz, I.S.Grant, K.Gulda, A.J.Aas, J.Billowes, M.J.G.Borge, D.G.Burke, P.A.Butler, J.F.C.Cocks, B.Fogelberg, S.J.Freeman, G.D.Jones, E.Hagebo, P.Hoff, J.Honsi, A.Lindroth, G.Lovhoiden, H.Mach, T.Martinez, R.A.Naumann, K.Nybo, G.Nyman, H.Ravn, B.Rubio, J.Simpson, A.G.Smith, J.F.Smith, K.Steffensen, J.L.Tain, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

The Nuclear Structure of 227Fr

RADIOACTIVITY 227Rn(β-) [from 232Th(p, n5p), E=1 GeV]; measured Eγ, Iγ, I(ce), T1/2, βγγ(t), γγ-coin. 227Fr deduced levels, J, π, ICC, γ-multipolarity, rotational bands, B(λ). Ge, Si(Li), BGO, plastic, BaF2 detectors, mini-orange spectrometer.

doi: 10.1016/S0375-9474(97)00190-5
Citations: PlumX Metrics

1996AA01      Nucl.Phys. A611, 281 (1996)

A.J.Aas, H.Mach, M.J.G.Borge, B.Fogelberg, I.S.Grant, K.Gulda, E.Hagebo, W.Kurcewicz, J.Kvasil, A.Lindroth, T.Martinez, D.Nosek, B.Rubio, J.F.Smith, K.Steffensen, J.L.Tain, O.Tengblad, T.F.Thorsteinsen, and the ISOLDE Collaboration

Enhanced and Quenched B(E1) Transition Rates between Parity Doublet Bands in 227Ra

RADIOACTIVITY 227Fr(β-); measured βγγ(t). 227Ra deduced levels, J, π, T1/2, K, B(λ), band structure. Quasiparticle-plus-phonon model, Coriolis coupling.

doi: 10.1016/S0375-9474(96)00312-0
Citations: PlumX Metrics

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