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NSR database version of May 23, 2024.

Search: Author = A.Krieger

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2019FR08      Hyperfine Interactions 240, 66 (2019)

N.Frommgen, W.Nortershauser, M.L.Bissell, K.Blaum, C.Geppert, M.Hammen, M.Kowalska, J.Kramer, K.Kreim, A.Krieger, Y.A.Litvinov, R.Neugart, G.Neyens, J.Papuga, R.Sanchez, D.T.Yordanov

Hyperfine structure and nuclear magnetic moments of the praseodymium isotopes 135, 136, 137Pr

NUCLEAR MOMENTS 135,136,137Pr; measured frequencies; deduced hyperfine parameters and magnetic moments. Comparison with available data.

doi: 10.1007/s10751-019-1608-5
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2018HA30      Phys.Rev.Lett. 121, 102501 (2018)

M.Hammen, W.Nortershauser, D.L.Balabanski, M.L.Bissell, K.Blaum, I.Budincevic, B.Cheal, K.T.Flanagan, N.Frommgen, G.Georgiev, Ch.Geppert, M.Kowalska, K.Kreim, A.Krieger, W.Nazarewicz, R.Neugart, G.Neyens, J.Papuga, P.-G.Reinhard, M.M.Rajabali, S.Schmidt, D.T.Yordanov

From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of 100-130Cd

NUCLEAR MOMENTS 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130Cd; measured frequencies; deduced differences in mean-square nuclear charge radii, isotope shifts. Comparison with density functional theory predictions.

doi: 10.1103/PhysRevLett.121.102501
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2017YO05      J.Phys.(London) G44, 075104 (2017)

D.T.Yordanov, M.L.Bissell, K.Blaum, M.De Rydt, C.Geppert, J.Kramer, K.Kreim, M.Kowalska, A.Krieger, P.Lievens, R.Neugart, G.Neyens, W.Nortershauser, L.V.Rodriguez, R.Sanchez, P.Vingerhoets

Spin and magnetic moment of 23Mg

NUCLEAR MOMENTS 23,24,25Mg; measured fluorescence spectra; deduced magnetic moments. Collinear laser spectroscopy at CERN-ISOLDE.

doi: 10.1088/1361-6471/aa718b
Citations: PlumX Metrics

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2016YO01      Phys.Rev.Lett. 116, 032501 (2016)

D.T.Yordanov, D.L.Balabanski, M.L.Bissell, K.Blaum, I.Budincevic, B.Cheal, K.Flanagan, N.Frommgen, G.Georgiev, Ch.Geppert, M.Hammen, M.Kowalska, K.Kreim, A.Krieger, J.Meng, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, J.Papuga, S.Schmidt, P.W.Zhao

Simple Nuclear Structure in 111-129Cd from Atomic Isomer Shifts

NUCLEAR MOMENTS 111,113,115,117,119,121,123,125,127,129Cd; measured spectral lines; deduced isomer shifts and differential mean square charge radii, quadrupole moments. Comparison with covariant density functional theory.

doi: 10.1103/PhysRevLett.116.032501
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2015FR08      Eur.Phys.J. D 69, 164 (2015)

N.Frommgen, D.L.Balabanski, M.L.Bissell, J.Bieron, K.Blaum, B.Cheal, K.Flanagan, S.Fritzsche, C.Geppert, M.Hammen, M.Kowalska, K.Kreim, A.Krieger, R.Neugart, G.Neyens, M.M.Rajabali, W.Nortershauser, J.Papuga, D.T.Yordanov

Collinear laser spectroscopy of atomic cadmium

NUCLEAR MOMENTS 107,109,111,113,115,117,119,121,123Cd; measured frequencies; deduced hyperfine structure factors, nuclear magnetic moments and electric quadrupole moments. Comparison with multi-configuration Dirac-Hartree-Fock calculations. Colinear laser spectroscopy at Isolde.

doi: 10.1140/epjd/e2015-60219-0
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2015GO24      J.Phys.(London) B48, 245008 (2015)

C.Gorges, K.Blaum, N.Frommgen, C.Geppert, M.Hammen, S.Kaufmann, J.Kramer, A.Krieger, R.Neugart, R.Sanchez, W.Nortershauser

Isotope shift of 40, 42, 44, 48Ca in the 4s 2S1/2 → 4p 2P3/2 transition

ATOMIC PHYSICS 40,42,44,48Ca; measured ion kinetic energy spectra; deduced precise isotope shift values. Comparison with available data.

doi: 10.1088/0953-4075/48/24/245008
Citations: PlumX Metrics


2013YO02      Phys.Rev.Lett. 110, 192501 (2013)

D.T.Yordanov, D.L.Balabanski, J.Bieron, M.L.Bissell, K.Blaum, I.Budincevic, S.Fritzsche, N.Frommgen, G.Georgiev, Ch.Geppert, M.Hammen, M.Kowalska, K.Kreim, A.Krieger, R.Neugart, W.Nortershauser, J.Papuga, S.Schmidt

Spins, Electromagnetic Moments, and Isomers of 107-129Cd

NUCLEAR MOMENTS 107,109,111,113,115,117,119,121,123,125,127,129Cd; measured the atomic hyperfine structure by the ion-beam fluorescence as a function of the laser frequency scanned via the Doppler effect; deduced J, hyperfine parameters, electromagnetic dipole and quadrupole moments. Comparison with available data.

doi: 10.1103/PhysRevLett.110.192501
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2012CH51      J.Phys.:Conf.Ser. 381, 012071 (2012)

B.Cheal, J.Billowes, M.L.Bissell, K.Blaum, F.C.Charlwood, K.T.Flanagan, D.H.Forest, Ch.Geppert, M.Kowalska, K.Kreim, A.Krieger, J.Kramer, K.M.Lynch, E.Mane, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, T.J.Procter, M.M.Rajabali, H.H.Stroke, P.Vingerhoets, D.T.Yordanov, M.Zakova

Laser spectroscopy of gallium isotopes beyond N = 50

NUCLEAR MOMENTS 82Ga; measured nuclear moments using laser spectroscopy; deduced hfs, hyperfine coefficients, g-factor, magnetic dipole moment, electric quadrupole from fitting observed hfs of the ground state.

doi: 10.1088/1742-6596/381/1/012071
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2012KR04      Phys.Rev.Lett. 108, 142501 (2012)

A.Krieger, K.Blaum, M.L.Bissell, N.Frommgen, Ch.Geppert, M.Hammen, K.Kreim, M.Kowalska, J.Kramer, T.Neff, R.Neugart, G.Neyens, W.Nortershauser, Ch.Novotny, R.Sanchez, D.T.Yordanov

Nuclear Charge Radius of 12Be

NUCLEAR MOMENTS 12Be; measured isotope shifts; deduced nuclear charge radii. Comparison with available data and FMD calculations.

doi: 10.1103/PhysRevLett.108.142501
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2012PR11      Phys.Rev. C 86, 034329 (2012)

T.J.Procter, J.Billowes, M.L.Bissell, K.Blaum, F.C.Charlwood, B.Cheal, K.T.Flanagan, D.H.Forest, S.Fritzsche, Ch.Geppert, H.Heylen, M.Kowalska, K.Kreim, A.Krieger, J.Kramer, K.M.Lynch, E.Mane, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, M.M.Rajabali, H.H.Stroke, P.Vingerhoets, D.T.Yordanov, M.Zakova

Nuclear mean-square charge radii of 63, 64, 66, 68-82Ga nuclei: No anomalous behavior at N=32

NUCLEAR REACTIONS Zr(p, X)63Ga/64Ga/66Ga/68Ga/69Ga/70Ga/71Ga/72Ga/73Ga/74Ga/75Ga/76Ga/77Ga/78Ga/79Ga/80Ga/80mGa/81Ga/82Ga, E=1.4 GeV; measured optical spectra, hyperfine coefficients, isotope shifts, mean-square charge radii, J, magnetic dipole and electric quadrupole moments using collinear laser spectroscopy. RILIS source at ISOLDE, CERN facility.

NUCLEAR MOMENTS 63,64,66,68,69,70,71,72,73,74,75,76,77,78,79,80,80m,81,82Ga; measured optical spectra, hyperfine coefficients, isotope shifts, mean-square charge radii, J, magnetic dipole and electric quadrupole moments using collinear laser spectroscopy. RILIS source at ISOLDE, CERN facility. Comparison with shell-model calculations. Z=30, 32, N=30-55; systematics of energies of first 2+ states and E(first 4+)/E(first 2+). Z=28, 30, 31, 36, N=3-0-52; systematics of mean-square charge radii.

doi: 10.1103/PhysRevC.86.034329
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2012YO01      Phys.Rev.Lett. 108, 042504 (2012)

D.T.Yordanov, M.L.Bissell, K.Blaum, M.De Rydt, Ch.Geppert, M.Kowalska, J.Kramer, K.Kreim, A.Krieger, P.Lievens, T.Neff, R.Neugart, G.Neyens, W.Nortershauser, R.Sanchez, P.Vingerhoets

Nuclear Charge Radii of 21-32Mg

ATOMIC PHYSICS 21,22,23,24,25,26,27,28,29,30,31,32Mg; measured the atomic isotope shift representing the transition frequencies with respect to the fine structure levels; deduced rms charge radii, evolution of nuclear shape through deformation regions. Comparison with theory and differential mean square radii, application of laser-induced orientation for isotope shift measurements.

doi: 10.1103/PhysRevLett.108.042504
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2011MA45      Phys.Rev. C 84, 024303 (2011)

E.Mane, B.Cheal, J.Billowes, M.L.Bissell, K.Blaum, F.C.Charlwood, K.T.Flanagan, D.H.Forest, Ch.Geppert, M.Kowalska, A.Krieger, J.Kramer, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, R.Sanchez, M.Schug, H.H.Stroke, P.Vingerhoets, D.T.Yordanov, M.Zakova

Ground-state spins and moments of 72, 74, 76, 78Ga nuclei

NUCLEAR MOMENTS 72,74,76,78,80Ga; measured hyperfine structure using laser spectroscopy and RILIS source at ISOLDE, CERN; deduced hyperfine structure parameters, ground state spins, magnetic dipole moments, electric quadrupole moments, configurations. Comparison with Shell Model calculations.

NUCLEAR STRUCTURE 74,76,78,80Ga; calculated levels, J, π using shell-model with the jj44b effective interaction, and proton configuration. 71,73,75,77,79,81Ga; calculated percentage occupation of the πp3/2 and πf5/2 orbitals in the ground states.

doi: 10.1103/PhysRevC.84.024303
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2011VI03      Phys.Lett. B 703, 34 (2011)

P.Vingerhoets, K.T.Flanagan, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, M.De Rydt, D.H.Forest, Ch.Geppert, M.Honma, M.Kowalska, J.Kramer, K.Kreim, A.Krieger, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, T.J.Procter, M.M.Rajabali, R.Sanchez, H.H.Stroke, D.T.Yordanov

Magnetic and quadrupole moments of neutron deficient 58-62Cu isotopes

NUCLEAR MOMENTS 58,59,60,61,62Cu; measured hyperfine spectrum; deduced ground state nuclear moments, g factors, quadrupole moments, ground-state hyperfine parameters. Comparison with large-scale shell model calculations, GXPF1A effective interaction.

NUCLEAR STRUCTURE 57,58,59,60,61,62,63,64,65,66,67,68Cu; calculated level energies, J, π, g factors, quadrupole moments. GXPF1A effective interaction. Comparison with experimental data.

doi: 10.1016/j.physletb.2011.07.050
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2010CH16      Phys.Rev.Lett. 104, 252502 (2010)

B.Cheal, E.Mane, J.Billowes, M.L.Bissell, K.Blaum, B.A.Brown, F.C.Charlwood, K.T.Flanagan, D.H.Forest, C.Geppert, M.Honma, A.Jokinen, M.Kowalska, A.Krieger, J.Kramer, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, M.Schug, H.H.Stroke, P.Vingerhoets, D.T.Yordanov, M.Zakova

Nuclear Spins and Moments of Ga Isotopes Reveal Sudden Structural Changes between N=40 and N=50

NUCLEAR REACTIONS U(p, X)67Ga/69Ga/71Ga/73Ga/75Ga/77Ga/79Ga/81Ga, E=1.4 GeV; measured optical hfs spectra; deduced ground J, π, magnetic dipole and electric quadrupole moments, anomalous ground state spins.

doi: 10.1103/PhysRevLett.104.252502
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2010CH50      Phys.Rev. C 82, 051302 (2010)

B.Cheal, J.Billowes, M.L.Bissell, K.Blaum, F.C.Charlwood, K.T.Flanagan, D.H.Forest, S.Fritzsche, Ch.Geppert, A.Jokinen, M.Kowalska, A.Krieger, J.Kramer, E.Mane, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, M.Schug, H.H.Stroke, P.Vingerhoets, D.T.Yordanov, M.Zakova

Discovery of a long-lived low-lying isomeric state in 80Ga

NUCLEAR MOMENTS 80Ga; measured optical hyperfine structure spectra, spins, magnetic dipole moments, electric quadrupole moments, half-lives using Collinear laser spectroscopy at ISOLDE, CERN. 80Ga; deduced levels, J, π, isomer, configurations. Comparison with shell-model calculations in restricted and full pfg-model space with a 56Ni core

doi: 10.1103/PhysRevC.82.051302
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2010FL02      Phys.Rev. C 82, 041302 (2010)

K.T.Flanagan, P.Vingerhoets, M.L.Bissell, K.Blaum, B.A.Brown, B.Cheal, M.De Rydt, D.H.Forest, Ch.Geppert, M.Honma, M.Kowalska, J.Kramer, A.Krieger, E.Mane, R.Neugart, G.Neyens, W.Nortershauser, M.Schug, H.H.Stroke, D.T.Yordanov

Experimental determination of an Iπ=2- ground state in 72, 74Cu

NUCLEAR MOMENTS 72Cu, 74Cu; measured resonance fluorescence spectra, hyperfine structure parameters, spins, static magnetic dipole and electric quadrupole moments of the ground states using collinear laser spectroscopy at the CERN on-Line Isotope Mass Separator (ISOLDE) facility. Comparison with shell-model calculations using the JUN45 interaction.

NUCLEAR STRUCTURE 71,72,73,74,75Cu; calculated levels, J, π using large-scale shell-model calculations and several interactions.

doi: 10.1103/PhysRevC.82.041302
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2010VI07      Phys.Rev. C 82, 064311 (2010)

P.Vingerhoets, K.T.Flanagan, M.Avgoulea, J.Billowes, M.L.Bissell, K.Blaum, B.A.Brown, B.Cheal, M.De Rydt, D.H.Forest, Ch.Geppert, M.Honma, M.Kowalska, J.Kramer, A.Krieger, E.Mane, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, M.Schug, H.H.Stroke, G.Tungate, D.T.Yordanov

Nuclear spins, magnetic moments, and quadrupole moments of Cu isotopes from N=28 to N=46: Probes for core polarization effects

NUCLEAR MOMENTS 61,62,63,64,65,66,67,68,69,70,71,72,73,74,75Cu; measured hyperfine structure spectra, spins, magnetic dipole moments, electric quadrupole moments using collinear laser spectroscopy at CERN-ISOLDE. RILIS source and Paul trap ISCOOL. Comparison with shell-model calculations.

NUCLEAR REACTIONS U(p, X)61Cu/62Cu/63Cu/64Cu/65Cu/66Cu/67Cu/68Cu/68mCu/69Cu/70Cu/70mCu/71Cu/72Cu/73Cu/74Cu/75Cu/, E=1.4 GeV; measured production yields.

NUCLEAR STRUCTURE 57,58,59,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,77,79Cu; calculated levels, J, π, g factors and quadrupole moments using large-scale shell model starting from a 56Ni core

doi: 10.1103/PhysRevC.82.064311
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2010ZA02      J.Phys.(London) G37, 055107 (2010)

M.Zakova, Z.Andjelkovic, M.L.Bissell, K.Blaum, G.W.F.Drake, Ch.Geppert, M.Kowalska, J.Kramer, A.Krieger, M.Lochmann, T.Neff, R.Neugart, W.Nortershauser, R.Sanchez, F.Schmidt-Kaler, D.Tiedemann, Z.-C.Yan, D.T.Yordanov, C.Zimmermann

Isotope shift measurements in the 2s1/2 → 2p3/2 transition of Be+ and extraction of the nuclear charge radii for 7, 10, 11Be

ATOMIC PHYSICS 7,10,11Be; measured laser beam frequencies; deduced isotope shifts, nuclear charge radii, cluster structures. Comparison with nuclear structure calculations.

doi: 10.1088/0954-3899/37/5/055107
Citations: PlumX Metrics

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2009FL03      Phys.Rev.Lett. 103, 142501 (2009)

K.T.Flanagan, P.Vingerhoets, M.Avgoulea, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, M.De Rydt, V.N.Fedosseev, D.H.Forest, Ch.Geppert, U.Koster, M.Kowalska, J.Kramer, K.L.Kratz, A.Krieger, E.Mane, B.A.Marsh, T.Materna, L.Mathieu, P.L.Molkanov, R.Neugart, G.Neyens, W.Nortershauser, M.D.Seliverstov, O.Serot, M.Schug, M.A.Sjoedin, J.R.Stone, N.J.Stone, H.H.Stroke, G.Tungate, D.T.Yordanov, Yu.M.Volkov

Nuclear Spins and Magnetic Moments of 71, 73, 75Cu: Inversion of π2p3/2 and π1f5/2 Levels in 75Cu

NUCLEAR MOMENTS 71,73,75Cu; measured hfs spectra; deduced ground-state spins, magnetic moments, hyperfine parameters, shell inversion. Comparison with large-scale shell-model calculation.

doi: 10.1103/PhysRevLett.103.142501
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2009NO02      Phys.Rev.Lett. 102, 062503 (2009)

W.Nortershauser, D.Tiedemann, M.Zakova, Z.Andjelkovic, K.Blaum, M.L.Bissell, R.Cazan, G.W.F.Drake, Ch.Geppert, M.Kowalska, J.Kramer, A.Krieger, R.Neugart, R.Sanchez, F.Schmidt-Kaler, Z.-C.Yan, D.T.Yordanov, C.Zimmermann

Nuclear Charge Radii of 7, 9, 10Be and the One-Neutron Halo Nucleus 11Be

NUCLEAR MOMENTS 7,9,10,11Be; measured isotope shifts; deduced nuclear charge radii.

doi: 10.1103/PhysRevLett.102.062503
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