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NSR database version of May 21, 2024.

Search: Author = G.Neyens

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2023LE15      Phys.Lett. B 847, 138278 (2023)

S.Lechner, T.Miyagi, Z.Y.Xu, M.L.Bissell, K.Blaum, B.Cheal, C.S.Devlin, R.F.Garcia Ruiz, J.S.M.Ginges, H.Heylen, J.D.Holt, P.Imgram, A.Kanellakopoulos, A.Koszorus, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, P.Plattner, L.V.Rodriguez, G.Sanamyan, S.R.Stroberg, Y.Utsuno, X.F.Yang, D.T.Yordanov

Electromagnetic moments of the antimony isotopes 112-133Sb

NUCLEAR MOMENTS 113,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133Sb; measured frequencies; deduced hyperfine spectra parameters, hyperfine anomaly, nuclear magnetic dipole and electric quadrupole moments. Comparison with shell model and ab initio calculations. Radioactive antimony (Sb) isotopes were produced at the radioactive ion beam facility ISOLDE-CERN.

doi: 10.1016/j.physletb.2023.138278
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2023PL01      Phys.Rev.Lett. 131, 222502 (2023)

P.Plattner, E.Wood, L.Al Ayoubi, O.Beliuskina, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.P.de Groote, C.S.Devlin, T.Eronen, L.Filippin, R.F.Garcia Ruiz, Z.Ge, S.Geldhof, W.Gins, M.Godefroid, H.Heylen, M.Hukkanen, P.Imgram, A.Jaries, A.Jokinen, A.Kanellakopoulos, A.Kankainen, S.Kaufmann, K.Konig, A.Koszorus, S.Kujanpaa, S.Lechner, S.Malbrunot-Ettenauer, P.Muller, R.Mathieson, I.Moore, W.Nortershauser, D.Nesterenko, R.Neugart, G.Neyens, A.Ortiz-Cortes, H.Penttila, I.Pohjalainen, A.Raggio, M.Reponen, S.Rinta-Antila, L.V.Rodriguez, J.Romero, R.Sanchez, F.Sommer, M.Stryjczyk, V.Virtanen, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov

Nuclear Charge Radius of 26mAl and Its Implication for Vud in the Quark Mixing Matrix

NUCLEAR MOMENTS 26,26m,27Al [from 27Al(p, d), E=25 MeV]; measured frequencies; deduced resonance spectrum, isotope shifts, mean square charge radii, log ft values. Collinear laser spectroscopy. The COLLAPS beamline at ISOLDE-CERN and the IGISOL CLS beamline.

doi: 10.1103/PhysRevLett.131.222502
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2022AU03      Eur.Phys.J. A 58, 88 (2022)

T.Aumann, W.Bartmann, O.Boine-Frankenheim, A.Bouvard, A.Broche, F.Butin, D.Calvet, J.Carbonell, P.Chiggiato, H.De Gersem, R.De Oliveira, T.Dobers, F.Ehm, J.Ferreira Somoza, J.Fischer, M.Fraser, E.Friedrich, A.Frotscher, M.Gomez-Ramos, J.-L.Grenard, A.Hobl, G.Hupin, A.Husson, P.Indelicato, K.Johnston, C.Klink, Y.Kubota, R.Lazauskas, S.Malbrunot-Ettenauer, N.Marsic, W.F.O Muller, S.Naimi, N.Nakatsuka, R.Necca, D.Neidherr, G.Neyens, A.Obertelli, Y.Ono, S.Pasinelli, N.Paul, E.C.Pollacco, D.Rossi, H.Scheit, M.Schlaich, A.Schmidt, L.Schweikhard, R.Seki, S.Sels, E.Siesling, T.Uesaka, M.Vilen, M.Wada, F.Wienholtz, S.Wycech, S.Zacarias

PUMA, antiProton unstable matter annihilation

doi: 10.1140/epja/s10050-022-00713-x
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2022BA15      Phys.Lett. B 829, 137064 (2022)

S.W.Bai, A.Koszorus, B.S.Hu, X.F.Yang, J.Billowes, C.L.Binnersley, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, T.E.Cocolios, R.P.de Groote, C.S.Devlin, K.T.Flanagan, R.F.Garcia Ruiz, H.Heylen, J.D.Holt, A.Kanellakopoulos, J.Kramer, V.Lagaki, B.Maass, S.Malbrunot-Ettenauer, T.Miyagi, R.Neugart, G.Neyens, W.Nortershauser, L.V.Rodriguez, F.Sommer, A.R.Vernon, S.J.Wang, X.B.Wang, S.G.Wilkins, Z.Y.Xu, C.X.Yuan

Electromagnetic moments of scandium isotopes and N=28 isotones in the distinctive 0f7/2 orbit

NUCLEAR MOMENTS 41,43,45,46,47,49Sc; measured frequencies; deduced hfs constants, electromagnetic dipole and quadrupole moments. Comparison with theoretical calculations. Two collinear laser spectroscopy (CLS) setups, COLLAPS and CRIS at ISOLDE-CERN.

doi: 10.1016/j.physletb.2022.137064
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2022MA04      Phys.Rev.Lett. 128, 022502 (2022)

S.Malbrunot-Ettenauer, S.Kaufmann, S.Bacca, C.Barbieri, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, T.Duguet, R.F.Garcia Ruiz, W.Gins, C.Gorges, G.Hagen, H.Heylen, J.D.Holt, G.R.Jansen, A.Kanellakopoulos, M.Kortelainen, T.Miyagi, P.Navratil, W.Nazarewicz, R.Neugart, G.Neyens, W.Nortershauser, S.J.Novario, T.Papenbrock, T.Ratajczyk, P.-G.Reinhard, L.V.Rodriguez, R.Sanchez, S.Sailer, A.Schwenk, J.Simonis, V.Soma, S.R.Stroberg, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov

Nuclear Charge Radii of the Nickel Isotopes 58-68, 70Ni

NUCLEAR MOMENTS 58,59,60,61,62,63,64,65,66,67,68Ni, 70Ni; measured frequency-time spectrum; deduced isotope shifts, mean-square charge radii. Comparison with ab initio approaches. Collinear laser spectroscopy beam line COLLAPS, ISOLDE/CERN.

doi: 10.1103/PhysRevLett.128.022502
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2022SE09      Phys. Rev. Res. 4, 033229 (2022)

S.Sels, F.M.Maier, M.Au, P.Fischer, C.Kanitz, V.Lagaki, S.Lechner, E.Leistenschneider, D.Leimbach, E.M.Lykiardopoulou, A.A.Kwiatkowski, T.Manovitz, Y.N.Vila Gracia, G.Neyens, P.Plattner, S.Rothe, L.Schweikhard, M.Vilen, R.N.Wolf, S.Malbrunot-Ettenauer

Doppler and sympathetic cooling for the investigation of short-lived radioactive ions

doi: 10.1103/PhysRevResearch.4.033229
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2021HE04      Phys.Rev. C 103, 014318 (2021)

H.Heylen, C.S.Devlin, W.Gins, M.L.Bissell, K.Blaum, B.Cheal, L.Filippin, R.F.Garcia Ruiz, M.Godefroid, C.Gorges, J.D.Holt, A.Kanellakopoulos, S.Kaufmann, A.Koszorus, K.Konig, S.Malbrunot-Ettenauer, T.Miyagi, R.Neugart, G.Neyens, W.Nortershauser, R.Sanchez, F.Sommer, L.V.RodrIguez, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov

High-resolution laser spectroscopy of 27-32Al

NUCLEAR MOMENTS 27,28,29,30,31,32Al; measured hyperfine structure spectra of the 3s23p2P3/20 to 3s24s2S1/2 atomic transition using collinear laser spectroscopy at the COLLAPS-ISOLDE-CERN facility; deduced hyperfine parameters, magnetic dipole moments and spectroscopic quadrupole moments with reference to those for 27Al, isotope shifts and mean-square charge radii relative to 27Al. Comparison with theoretical calculations using ab initio valence space in-medium similarity renormalization group method (VS-IMSRG) with multiple sets of two- and three-nucleon forces from chiral effective field theory, and with previous available experimental results. Neutral atoms of 27,28,29,30,31,32Al produced in U(p, X), E=1.4-GeV, using uranium carbide target, followed by extraction from the target, ionized by a resonance ionization laser ion source (RILIS), accelerated to 30 keV, and finally mass separated.

doi: 10.1103/PhysRevC.103.014318
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2021KO08      Nat.Phys. 17, 439 (2021), Erratum Nat.Phys. 17, 539 (2021)

A.Koszorus, X.F.Yang, W.G.Jiang, S.J.Novario, S.W.Bai, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, B.S.Cooper, R.P.de Groote, A.Ekstrom, K.T.Flanagan, C.Forssen, S.Franchoo, R.F.Garcia Ruiz, F.P.Gustafsson, G.Hagen, G.R.Jansen, A.Kanellakopoulos, M.Kortelainen, W.Nazarewicz, G.Neyens, T.Papenbrock, P.-G.Reinhard, C.M.Ricketts, B.K.Sahoo, A.R.Vernon, S.G.Wilkins

Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of N = 32

NUCLEAR MOMENTS 36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52K; measured frequencies; deduced hyperfine structure spectra, charge radii, new magic numbers. Comparison with NNLO, HFB calculations.

doi: 10.1038/s41567-020-01136-5
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2021LE11      Phys.Rev. C 104, 014302 (2021)

S.Lechner, Z.Y.Xu, M.L.Bissell, K.Blaum, B.Cheal, G.De Gregorio, C.S.Devlin, R.F.Garcia Ruiz, A.Gargano, H.Heylen, P.Imgram, A.Kanellakopoulos, A.Koszorus, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, P.Plattner, L.V.Rodriguez, X.F.Yang, D.T.Yordanov

Probing the single-particle behavior above 132Sn via electromagnetic moments of 133, 134Sb and N=82 isotones

NUCLEAR MOMENTS 133,134mSb; measured hyperfine structure spectra of the 7/2+ ground state of 133Sb and the (7-) isomeric state of 134Sb using the collinear laser spectroscopy (COLLAPS) at the radioactive ion-beam facility ISOLDE-CERN; deduced hyperfine structure constants, spins, static magnetic dipole and electric quadrupole moments; discussed single-particle behavior of nuclides above the doubly magic nucleus 132Sn. Comparison with previous experimental results, and with shell-model calculations. 133,134Sb isotopes produced in U(p, X) reaction using UCx target, followed by separation of atomic antimony fragments by selective laser ionization, acceleration of ions to 50 keV, and finally mass separated by a magnetic separator and accumulated in a buffer-gas filled radio-frequency quadrupole cooler and buncher.

doi: 10.1103/PhysRevC.104.014302
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2020DE21      Nat.Phys. 16, 620 (2020)

R.P.de Groote, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, T.Day Goodacre, G.J.Farooq-Smith, D.V.Fedorov, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, W.Gins, J.D.Holt, A.Koszorus, K.M.Lynch, T.Miyagi, W.Nazarewicz, G.Neyens, P.-G.Reinhard, S.Rothe, H.H.Stroke, A.R.Vernon, K.D.A.Wendt, S.G.Wilkins, Z.Y.Xu, X.F.Yang

Measurement and microscopic description of odd-even staggering of charge radii of exotic copper isotopes

NUCLEAR MOMENTS 63,64,65,68,69,70,71,72,73,74,75,76,77,78Cu; measured laser frequencies; deduced isotope shifts, charge radii. Isotope Mass Separator On-Line Device facility (ISOLDE) at CERN.

doi: 10.1038/s41567-020-0868-y
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2020GU24      Phys.Rev. A 102, 052812 (2020)

F.P.Gustafsson, C.M.Ricketts, M.L.Reitsma, R.F.Garcia Ruiz, S.W.Bai, J.C.Berengut, J.Billowes, C.L.Binnersley, A.Borschevsky, T.E.Cocolios, B.S.Cooper, R.P.de Groote, K.T.Flanagan, A.Koszorus, G.Neyens, H.A.Perrett, A.R.Vernon, Q.Wang, S.G.Wilkins, X.F.Yang

Tin resonance-ionization schemes for atomic- and nuclear-structure studies

NUCLEAR MOMENTS 116,117,118,119,120,122,124Sn; measured frequencies; deduced isotope shifts, magnetic dipole hyperfine constants, hyperfine structures. Comparison with state-of-the-art atomic calculations using a relativistic Fock-space coupled-cluster method and the configuration interaction approach combined with many-body perturbation theory.

doi: 10.1103/PhysRevA.102.052812
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2020HA38      Phys.Rev.X 10, 041061 (2020)

R.D.Harding, S.Pallada, J.Croese, A.Antusek, M.Baranowski, M.L.Bissell, L.Cerato, K.M.Dziubinska-Kuhn, W.Gins, F.P.Gustafsson, A.Javaji, R.B.Jolivet, A.Kanellakopoulos, B.Karg, M.Kempka, V.Kocman, M.Kozak, K.Kulesz, M.Madurga Flores, G.Neyens, R.Pietrzyk, J.Plavec, M.Pomorski, A.Skrzypczak, P.Wagenknecht, F.Wienholtz, J.Wolak, Z.Xu, D.Zakoucky, M.Kowalska

Magnetic Moments of Short-Lived Nuclei with Part-per-Million Accuracy: Toward Novel Applications of β-Detected NMR in Physics, Chemistry, and Biology

NUCLEAR MOMENTS 23,26Na; measured Larmor frequencies; deduced nuclear magnetic dipole moments with part-per-million (ppm) accuracy. Comparison with available data.

doi: 10.1103/PhysRevX.10.041061
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2020KA22      Phys.Rev.Lett. 124, 132502 (2020)

S.Kaufmann, J.Simonis, S.Bacca, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, R.F.Garcia Ruiz, W.Gins, C.Gorges, G.Hagen, H.Heylen, A.Kanellakopoulos, S.Malbrunot-Ettenauer, M.Miorelli, R.Neugart, G.Neyens, W.Nortershauser, R.Sanchez, S.Sailer, A.Schwenk, T.Ratajczyk, L.V.Rodriguez, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov

Charge Radius of the Short-Lived 68Ni and Correlation with the Dipole Polarizability

NUCLEAR MOMENTS 58,60,61,62,64,68Ni; measured frequencies; deduced resonance spectra, isotope shifts, nuclear charge radii. Comparison with novel coupled-cluster calculations.

doi: 10.1103/PhysRevLett.124.132502
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2020KA58      Phys.Rev. C 102, 054331 (2020)

A.Kanellakopoulos, X.F.Yang, M.L.Bissell, M.L.Reitsma, S.W.Bai, J.Billowes, K.Blaum, A.Borschevsky, B.Cheal, C.S.Devlin, R.F.Garcia Ruiz, H.Heylen, S.Kaufmann, K.Konig, A.Koszorus, S.Lechner, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, T.Ratajczyk, L.V.Rodriguez, S.Sels, S.J.Wang, L.Xie, Z.Y.Xu, D.T.Yordanov

Nuclear moments of germanium isotopes near N = 40

NUCLEAR MOMENTS 69,71,73Ge; measured hyperfine structure spectra using collinear laser spectroscopy setup COLLAPS at ISOLDE-CERN; deduced magnetic electric hyperfine structure constants, magnetic dipole moment μ, and electric quadrupole moment Q, with the hyperfine fields for the atomic levels calculated using state-of-the-art atomic relativistic Fock-space coupled-cluster method. Comparison with previous experimental results, and with large-scale shell-model calculations using JUN45 interaction, suggesting mixed wave-function configurations. Systematics of low-energy levels, g factors and quadrupole moments of 67,69,71,73Zn, 69,71,73,75Ge, 73Se. 69,71,73Ge isotopes produced in Zr(p, X), E=1.4 GeV reaction, followed by acceleration of germanium ions to 50 keV, and mass separation using the high-resolution isotope separator (HRS), and finally bunched in a gas-filled linear Paul trap (ISCOOL).

doi: 10.1103/PhysRevC.102.054331
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2020RO19      Phys.Rev. C 102, 051301(R) (2020)

L.V.Rodriguez, D.L.Balabanski, M.L.Bissell, K.Blaum, B.Cheal, G.De Gregorio, J.Ekman, R.F.Garcia Ruiz, A.Gargano, G.Georgiev, W.Gins, C.Gorges, H.Heylen, A.Kanellakopoulos, S.Kaufmann, V.Lagaki, S.Lechner, B.Maass, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, S.Sailer, R.Sanchez, S.Schmidt, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov

Doubly-magic character of 132Sn studied via electromagnetic moments of 133Sn

NUCLEAR MOMENTS 133Sn; measured hyperfine structure spectra, magnetic dipole moment (μ) and electric quadrupole moment (Q) using high-resolution collinear laser spectroscopy at ISOLDE-CERN facility; deduced 1f7/2 neutron orbital configuration for 133Sn g.s., and doubly-magic character of 132Sn. 133Sn activity produced in fission of a uranium carbide target by neutrons from spallation reaction on tungsten by high-energy protons, followed by laser ionization and mass selection through a linear Paul trap. Systematics of magnetic dipole moments (μ) and electric quadrupole moments (Q) for N=83 isotones: 133Sn, 135Te, 137Xe, 139Ba, 141Ce, 143Nd, 145Sm, 147Gd and 149Dy. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.102.051301
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2020SA10      New Journal of Physics 22, 012001 (2020)

B K.Sahoo, A.R.Vernon, R.F.Garcia Ruiz, C.L.Binnersley, J.Billowes, M.L.Bissell, T.E.Cocolios, G.J.Farooq-Smith, K.T.Flanagan, W.Gins, R.P.de Groote, A.Koszorus, G.Neyens, K.M.Lynch, F.Parnefjord-Gustafsson, C.M.Ricketts, K.D.A.Wendt, S.G.Wilkins, X.F.Yang

Analytic response relativistic coupled-cluster theory: the first application to indium isotope shifts

NUCLEAR STRUCTURE 103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127In; calculated charge rms radii, isomer shift values using the relativistic coupled-cluster (CC) theory framework to determine the atomic field shift and mass shift (MS) factors.

doi: 10.1088/1367-2630/ab66dd
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2020YO07      Commun. Phys. 3, 107 (2020)

D.T.Yordanov, L.V.Rodriguez, D.L.Balabanski, J.Bieron, M.L.Bissell, K.Blaum, B.Cheal, J.Ekman, G.Gaigalas, R.F.G.Ruiz, G.Georgiev, W.Gins, M.R.Godefroid, C.Gorges, Z.Harman, H.Heylen, P.Jonsson, A.Kanellakopoulos, S.Kaufmann, C.H.Keitel, V.Lagaki, S.Lechner, B.Maass, S.Malbrunot-Ettenauer, W.Nazarewicz, R.Neugart, G.Neyens, W.Nortershauser, N.S.Oreshkina, A.Papoulia, P.Pyykko, P.-G.Reinhard, S.Sailer, R.Sanchez, S.Schiffmann, S.Schmidt, L.Wehner, C.Wraith, L.Xie, Z.Xu, X.Yang

Structural trends in atomic nuclei from laser spectroscopy of tin

NUCLEAR MOMENTS 109,115,117,119,121,123,125,127,129,131Sn; measured frequency scales relative to the fine-structure splittings in the transitions; deduced mean square charge-radii changes, high-precision magnetic moments, quadrupole moments.

doi: 10.1038/s42005-020-0348-9
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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
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2019GO12      Phys.Rev.Lett. 122, 192502 (2019)

C.Gorges, L.V.Rodriguez, D.L.Balabanski, M.L.Bissell, K.Blaum, B.Cheal, R.F.Garcia Ruiz, G.Georgiev, W.Gins, H.Heylen, A.Kanellakopoulos, S.Kaufmann, M.Kowalska, V.Lagaki, S.Lechner, B.Maass, S.Malbrunot-Ettenauer, W.Nazarewicz, R.Neugart, G.Neyens, W.Nortershauser, P.-G.Reinhard, S.Sailer, R.Sanchez, S.Schmidt, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov

Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N=82 Shell Closure

NUCLEAR MOMENTS 108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn; measured frequencies; deduced isotope shifts, mean-square nuclear charge radii.

doi: 10.1103/PhysRevLett.122.192502
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2019KO19      Phys.Rev. C 100, 034304 (2019)

A.Koszorus, X.F.Yang, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, G.J.Farooq-Smith, R.P.de Groote, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, S.Geldhof, W.Gins, A.Kanellakopoulos, K.M.Lynch, G.Neyens, H.H.Stroke, A.R.Vernon, K.D.A.Wendt, S.G.Wilkins

Precision measurements of the charge radii of potassium isotopes

NUCLEAR MOMENTS 38,39,42,44,46,47K; measured hyperfine structures (hfs) for 4s2S1/2 to 4p2P1/2 atomic transition using Collinear Resonance Ionization Spectroscopy (CRIS) at ISOLDE-CERN; deduced isotope shifts, mean-square charge radii, and changes in the mean-square charge radii with reference to 47K. The potassium isotopes were produced at the CERN-ISOLDE facility in U(p, X), E=1.4 GeV reaction using UCx target, high-resolution mass separator (HRS), and gas-filled linear Paul trap (ISCOOL).

doi: 10.1103/PhysRevC.100.034304
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2019XI07      Phys.Lett. B 797, 134805 (2019)

L.Xie, X.F.Yang, C.Wraith, C.Babcock, J.Bieron, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, L.Filippin, K.T.Flanagan, R.F.Garcia Ruiz, W.Gins, G.Gaigalas, M.Godefroid, C.Gorges, L.K.Grob, H.Heylen, P.Jonsson, S.Kaufmann, M.Kowalska, J.Kramer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, J.Papuga, R.Sanchez, Y.Tsunoda, D.T.Yordanov

Nuclear charge radii of 62-80Zn and their dependence on cross-shell proton excitations

NUCLEAR MOMENTS 62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80Zn; measured frequencies; deduced isotope shifts, mean square charge radii.

doi: 10.1016/j.physletb.2019.134805
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2019YO06      Hyperfine Interactions 240, 67 (2019)

D.T.Yordanov, M.Kowalska, K.Blaum, M.De Rydt, K.T.Flanagan, P.Himpe, P.Lievens, S.Mallion, R.Neugart, G.Neyens, N.Vermeulen, H.Stroke

Quadrupole moments of 29Mg and 33Mg

NUCLEAR MOMENTS 29,33Mg; measured frequencies; deduced hyperfine parameters and quadrupole moments. Comparison with shell-model predictions.

doi: 10.1007/s10751-019-1609-4
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2018GA36      Phys.Rev.X 8, 041005 (2018)

R.F.Garcia Ruiz, A.R.Vernon, C.L.Binnersley, B.K.Sahoo, M.Bissell, J.Billowes, T.E.Cocolios, W.Gins, R.P.de Groote, K.T.Flanagan, A.Koszorus, K.M.Lynch, G.Neyens, C.M.Ricketts, K.D.A.Wendt, S.G.Wilkins, X.F.Yang

High-Precision Multiphoton Ionization of Accelerated Laser-Ablated Species

NUCLEAR MOMENTS 113,115In; measured frequencies; deduced hyperfine structure values, isotope shifts, nuclear magnetic dipole and electric quadrupole moments. Comparison with available data.

doi: 10.1103/PhysRevX.8.041005
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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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2018LY01      Phys.Rev. C 97, 024309 (2018)

K.M.Lynch, S.G.Wilkins, J.Billowes, C.L.Binnersley, M.L.Bissell, K.Chrysalidis, T.E.Cocolios, T.Day Goodacre, R.P.de Groote, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, W.Gins, R.Heinke, A.Koszorus, B.A.Marsh, P.L.Molkanov, P.Naubereit, G.Neyens, C.M.Ricketts, S.Rothe, C.Seiffert, M.D.Seliverstov, H.H.Stroke, D.Studer, A.R.Vernon, K.D.A.Wendt, X.F.Yang

Laser-spectroscopy studies of the nuclear structure of neutron-rich radium

NUCLEAR MOMENTS 222,223,224,225,226,227,228,229,230,231,232,233Ra; measured high-resolution hyperfine-structure spectra, isotope shifts, changes in mean-square charge; deduced King-plot for the extraction of the F and M atomic factors, odd-even staggering. 223,225,227,229,231Ra; deduced hyperfine factors A and B, static magnetic dipole and electric quadrupole moments. Collinear Resonance Ionization Spectroscopy (CRIS) at ISOLDE, CERN facility. Radium isotopes produced by impinging 1.4-GeV protons on a thick uranium-carbide target followed by surface and multistep laser resonance ionization using RILIS ion source, and mass separation with the high resolution separator, then cooled and bunched using the ISOLDE linear Paul trap, ISCOOL. Comparison with previous experimental values. Systematics of intrinsic quadrupole moments for N=130-146 U, Th, Ra and Rn isotopes, and those of odd-even staggering for N=132-144 Fr and Ra isotopes.

doi: 10.1103/PhysRevC.97.024309
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2018SC05      Phys.Lett. B 779, 324 (2018)

S.Schmidt, J.Billowes, M.L.Bissell, K.Blaum, R.F.Garcia Ruiz, H.Heylen, S.Malbrunot-Ettenauer, G.Neyens, W.Nortershauser, G.Plunien, S.Sailer, V.M.Shabaev, L.V.Skripnikov, I.I.Tupitsyn, A.V.Volotka, X.F.Yang

The nuclear magnetic moment of 208Bi and its relevance for a test of bound-state strong-field QED

NUCLEAR MOMENTS 208Bi; measured laser frequencies; deduced hfs spectra and coefficients, nuclear magnetic moment. Comparison with available data.

doi: 10.1016/j.physletb.2018.02.024
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2018XU05      Phys.Lett. B 782, 619 (2018)

Z.Y.Xu, H.Heylen, K.Asahi, F.Boulay, J.M.Daugas, R.P.de Groote, W.Gins, O.Kamalou, A.Koszorus, M.Lykiardopoulou, T.J.Mertzimekis, G.Neyens, H.Nishibata, T.Otsuka, R.Orset, A.Poves, T.Sato, C.Stodel, J.C.Thomas, N.Tsunoda, Y.Utsuno, M.Vandebrouck, X.F.Yang

Nuclear moments of the low-lying isomeric 1+ state of 34Al: Investigation on the neutron 1p1h excitation across N=20 in the island of inversion

NUCLEAR MOMENTS 32,34Al; measured transition frequencies using β-NMR/NQR techniques; deduced nuclear g factor and quadrupole moments. Comparison with large-scale shell-model calculations using several effective interactions.

doi: 10.1016/j.physletb.2018.06.009
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2018YA11      Phys.Rev. C 97, 044324 (2018)

X.F.Yang, Y.Tsunoda, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, K.T.Flanagan, R.F.Garcia Ruiz, W.Gins, C.Gorges, L.K.Grob, H.Heylen, S.Kaufmann, M.Kowalska, J.Kramer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, J.Papuga, R.Sanchez, C.Wraith, L.Xie, D.T.Yordanov

Investigating the large deformation of the 5/2+ isomeric state in 73Zn: An indicator for triaxiality

NUCLEAR MOMENTS 73,73mZn; measured hyperfine structure spectra using collinear laser spectroscopy (COLLAPS) at CERN-ISOLDE; deduced spins of ground state and isomer, estimated half-life of the isomer, and found no evidence for a previously proposed 5.6-s isomer. 73,73mZn produced by impinging UCx target by 1.4 GeV protons, and ionized by the resonant ionization laser-ion source (RILIS). 69m,71m,73m,75,77,79Zn; calculated quadrupole moments of ground states and isomers using shell model with JUN45 and A3DA-m interactions, and compared with experimental results from experiments at ISOLDE-CERN. Discussed collectivity in 73Zn.

NUCLEAR STRUCTURE 71,72,73,74,75Zn; calculated potential energy surfaces (PES) of high-spin states in 71,73,75Zn, and 0+, 2+, and 4+ states in 72,74Zn in (Q2, Q4) plane using Monte Carlo shell model (MCSM). 73Zn; calculated levels, J, π, T plots of levels in 73Zn, and compared with experimental data.

doi: 10.1103/PhysRevC.97.044324
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2018YO07      Phys.Rev. C 98, 011303 (2018)

D.T.Yordanov, D.L.Balabanski, M.L.Bissell, K.Blaum, A.Blazhev, I.Budincevic, N.Frommgen, Ch.Geppert, H.Grawe, M.Hammen, K.Kreim, R.Neugart, G.Neyens, W.Nortershauser

Spins and electromagnetic moments of 101-109Cd

NUCLEAR MOMENTS 101,103,105,107,109Cd; measured hyperfine spectra using high-resolution collinear laser spectroscopy (COLLAPS) at ISOLDE-CERN; deduced hyperfine structure constants A and B, J, magnetic dipole moment μ, electric quadrupole moment Q. Comparison with large-scale shell-model calculations using SR88MHJM Hamiltonian and with values from literature. Systematics of electromagnetic moments for A=99-111 Sn isotopes. 99Cd; predicted quadrupole moment from systematics. Activities produced in Sn(p, X) reaction and ion beams accumulated in a radio-frequency Paul trap.

doi: 10.1103/PhysRevC.98.011303
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2017DE30      Phys.Rev. C 96, 041302 (2017)

R.P.de Groote, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, T.Day Goodacre, G.J.Farooq-Smith, D.V.Fedorov, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, A.Koszorus, K.M.Lynch, G.Neyens, F.Nowacki, T.Otsuka, S.Rothe, H.H.Stroke, Y.Tsunoda, A.R.Vernon, K.D.A.Wendt, S.G.Wilkins, Z.Y.Xu, X.F.Yang

Dipole and quadrupole moments of 73-78Cu as a test of the robustness of the Z = 28 shell closure near 78Ni

NUCLEAR MOMENTS 73,74,75,76,77,78Cu; measured hyperfine spectra using Collinear Resonance Ionization Spectroscopy (CRIS) at CERN-ISOLDE facility; deduced hyperfine A and B parameters, magnetic dipole moments, electric quadrupole moments for the ground states, spins of 76,77Cu ground states. Comparison with large-scale shell-model calculations using A3DA-m and PFSDG-U interactions. The Cu isotopes produced in U(p, F), E=1.4 GeV reaction followed by laser ionization using the resonant ionization laser ion source (RILIS), and mass separation using the high-resolution separator.

doi: 10.1103/PhysRevC.96.041302
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2017FA09      Phys.Rev. C 96, 044324 (2017)

G.J.Farooq-Smith, A.R.Vernon, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, T.Day Goodacre, R.P.de Groote, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, W.Gins, K.M.Lynch, B.A.Marsh, G.Neyens, S.Rothe, H.H.Stroke, S.G.Wilkins, X.F.Yang

Probing the 31Ga ground-state properties in the region near Z=28 with high-resolution laser spectroscopy

NUCLEAR MOMENTS 65,67,69,75,79,80,80m,81,82Ga; measured hyperfine spectra using Collinear Resonance Ionization Spectroscopy (CRIS) technique at ISOLDE-CERN facility; deduced hyperfine structure constants, magnetic-dipole moments, electric-quadrupole moments, isotope-shifts, changes in rms charge radii, proton and neutron orbital occupations. Comparison with shell-model calculations using the GXPF1 and JUN45 interactions, and with previous experimental measurements. Systematics of g factors and quadrupole moments in N=28-40 Ga and Cu nuclei. Beams of Ga isotopes produced in U(n, F), with neutrons from W(p, X), E=1.4 GeV at ISOLDE-CERN, followed by laser ionization using the Resonance Ionization Laser Ion Source (RILIS), and mass separation by using the high-resolution mass separator and subsequent cooling and bunching using the ISOLDE cooler buncher (ISCOOL).

doi: 10.1103/PhysRevC.96.044324
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2017GA02      J.Phys.(London) G44, 044003 (2017)

R.F.Garcia Ruiz, C.Gorges, M.Bissell, K.Blaum, W.Gins, H.Heylen, K.Koenig, S.Kaufmann, M.Kowalska, J.Kramer, P.Lievens, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, D.T.Yordanov, X.F.Yang

Development of a sensitive setup for laser spectroscopy studies of very exotic calcium isotopes

NUCLEAR MOMENTS 48,51,52Ca; measured fluorescence photons; deduced nuclear charge radii, hyperfine parameter values, nuclear magnetic and quadrupole moments. Comparison with available data.

doi: 10.1088/1361-6471/aa5a24
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2017KO26      J.Phys.(London) G44, 084005 (2017)

M.Kowalska, P.Aschenbrenner, M.Baranowski, M.L.Bissell, W.Gins, R.D.Harding, H.Heylen, G.Neyens, S.Pallada, N.Severijns, Ph.Velten, M.Walczak, F.Wienholtz, Z.Y.Xu, X.F.Yang, D.Zakoucky

New laser polarization line at the ISOLDE facility

NUCLEAR MOMENTS 26,28Na; measured longitudinal transitional field; deduced hyperfine structures of the D2 line, ratio of the nuclear spin polarization. Comparison with available data.

doi: 10.1088/1361-6471/aa77d7
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2017NE04      J.Phys.(London) G44, 064002 (2017)

R.Neugart, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, K.T.Flanagan, G.Neyens, W.Nortershauser, D.T.Yordanov

Collinear laser spectroscopy at ISOLDE: new methods and highlights

NUCLEAR MOMENTS 31Mg, 38,39,42,44,46,47,48,49,50,51K, 40,43,44,45,46,47,48,49,50,51,52Ca, 51,53,54,55,56,57,58,59,60,61,62,63,64Mn, 58,59,60,61,62,63,64,65,66,67,68,70Ni, 58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75Cu, 62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80Zn, 63,64Ga, 66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81Ga, 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129Cd, 109Sn, 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134Sn; measured fluorescence; deduced hyperfine structure (hfs) spectra, nuclear magnetic and quadrupole moments, radii.

doi: 10.1088/1361-6471/aa6642
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2017WI11      Phys.Rev. C 96, 034317 (2017)

S.G.Wilkins, K.M.Lynch, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, T.Day Goodacre, R.P.de Groote, G.J.Farooq-Smith, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, W.Gins, H.Heylen, A.Koszorus, G.Neyens, H.H.Stroke, A.R.Vernon, K.D.A.Wendt, X.F.Yang

Quadrupole moment of 203Fr

NUCLEAR MOMENTS 203,207Fr; measured hyperfine spectra, ground-state spins, isotope shifts, magnetic dipole moments, spectroscopic quadrupole, and mean-square charge radii using high-resolution collinear resonance ionization spectroscopy (CRIS) at ISOLDE-CERN facility. 203,207Fr produced in U(p, X), E=1.4 GeV, using uranium carbide target, followed by mass separation using high-resolution separator (HRS) at ISOLDE. Comparison with literature values. 203Fr; deduced intrinsic quadrupole moment and calculated static and total deformation parameters β2. Systematics of quadrupole moments for N=110-126 Bi, Po and Fr isotopes.

doi: 10.1103/PhysRevC.96.034317
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2017WR01      Phys.Lett. B 771, 385 (2017)

C.Wraith, X.F.Yang, L.Xie, C.Babcock, J.Bieron, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, L.Filippin, R.F.Garcia Ruiz, W.Gins, L.K.Grob, G.Gaigalas, M.Godefroid, C.Gorges, H.Heylen, M.Honma, P.Jonsson, S.Kaufmann, M.Kowalska, J.Kramer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, F.Nowacki, T.Otsuka, J.Papuga, R.Sanchez, Y.Tsunoda, D.T.Yordanov

Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers

NUCLEAR MOMENTS 63,65,67,69,71,73,75,77,79Zn; measured optical spectra; deduced hyperfine spectra (hfs) including isomeric structures, J of ground and isomeric states, hfs constants, nuclear magnetic dipole and quadrupole moments, g-factors and wave functions. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2017.05.085
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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
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2016BA44      Phys.Lett. B 760, 387 (2016)

C.Babcock, H.Heylen, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, D.Fedorov, R.F.Garcia Ruiz, W.Geithner, W.Gins, T.Day Goodacre, L.K.Grob, M.Kowalska, S.M.Lenzi, B.Maass, S.Malbrunot-Ettenauer, B.Marsh, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, R.Rossel, S.Rothe, R.Sanchez, Y.Tsunoda, C.Wraith, L.Xie, X.F.Yang

Quadrupole moments of odd-A 53-63Mn: Onset of collectivity towards N = 40

NUCLEAR MOMENTS 53,55,57,59,61,63Mn; measured hyperfine spectra; deduced spectroscopic quadrupole moments. Comparison with large-scale shell model predictions using three effective interactions, GXPF1A, LNPS, modified A3DA.

doi: 10.1016/j.physletb.2016.07.016
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2016BI08      Phys.Rev. C 93, 064318 (2016)

M.L.Bissell, T.Carette, K.T.Flanagan, P.Vingerhoets, J.Billowes, K.Blaum, B.Cheal, S.Fritzsche, M.Godefroid, M.Kowalska, J.Kramer, R.Neugart, G.Neyens, W.Nortershauser, D.T.Yordanov

Cu charge radii reveal a weak sub-shell effect at N=40

ATOMIC PHYSICS 58,59,60,61,62,63,64,65,66,67,68,68m,69,70,70m,71,72,73,74,75Cu; measured isotope shifts, and mean-square charge radii using collinear laser spectroscopy at the CERN-ISOLDE radioactive ion beam facility. The Cu isotopes were produced in Zr(p, X), E=1.4 GeV reaction using RILIS laser ion source and linear Paul trap ISCOOL for separation. Comparison with muonic atomic data, and state-of-the-art atomic physics calculations using multiconfiguration Dirac-Hartree-Fock (MCDHF) method.

doi: 10.1103/PhysRevC.93.064318
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2016FA11      Phys.Rev. C 94, 054305 (2016); Pub.Note Phys. Rev. C 94, 059903 (2016)

G.J.Farooq-Smith, T.E.Cocolios, J.Billowes, M.L.Bissell, I.Budincevic, T.Day Goodacre, R.P.de Groote, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, H.Heylen, R.Li, K.M.Lynch, B.A.Marsh, G.Neyens, R.E.Rossel, S.Rothe, H.H.Stroke, K.D.A.Wendt, S.G.Wilkins, X.F.Yang

Laser and decay spectroscopy of the short-lived isotope 214Fr in the vicinity of the N=126 shell closure

NUCLEAR MOMENTS 214Fr; measured hyperfine structure, isotope shifts, g factors, and change in mean-square charge-radii using collinear resonance ionization spectroscopy (CRIS) technique at ISOLDE-CERN facility. Comparison with mean square charge-radii values just before and after N=126 shell closure for Hg to Ra nuclei.

RADIOACTIVITY 214Fr, 214Ra, 210Rn(α)[214Fr from U(p, X), E=1.4 GeV at ISOLDE-CERN, using high resolution mass separator and ISCOOL radio-frequency gas-filled linear Paul trap]; measured α-spectra.

doi: 10.1103/PhysRevC.94.054305
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2016GA34      Nat.Phys. 12, 594 (2016)

R.F.Garcia Ruiz, M.L.Bissell, K.Blaum, A.Ekstrom, N.Frommgen, G.Hagen, M.Hammen, K.Hebeler, J.D.Holt, G.R.Jansen, M.Kowalska, K.Kreim, W.Nazarewicz, R.Neugart, G.Neyens, W.Nortershauser, T.Papenbrock, J.Papuga, A.Schwenk, J.Simonis, K.A.Wendt, D.T.Yordanov

Unexpectedly large charge radii of neutron-rich calcium isotopes

NUCLEAR REACTIONS U(p, X)43Ca/44Ca/45Ca/46Ca/47Ca/48Ca/49Ca/50Ca/51Ca/52Ca, E=1.4GeV; measured hyperfine structure spectra; deduced charge radii. Comparison with available data.

doi: 10.1038/nphys3645
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2016HE09      Phys.Rev. C 94, 034312 (2016)

H.Heylen, M.De Rydt, G.Neyens, M.L.Bissell, L.Caceres, R.Chevrier, J.M.Daugas, Y.Ichikawa, Y.Ishibashi, O.Kamalou, T.J.Mertzimekis, P.Morel, J.Papuga, A.Poves, M.M.Rajabali, C.Stodel, J.C.Thomas, H.Ueno, Y.Utsuno, N.Yoshida, A.Yoshimi

High-precision quadrupole moment reveals significant intruder component in 3313AL20 ground state

NUCLEAR MOMENTS 31,33Al; measured β-NQR spectra, static electric quadrupole moment by β-detected nuclear quadrupole resonance (β-NQR) method at LISE-GANIL facility. Spin polarized nuclei of 33Al were produced in 9Be(36S, X), E=77 MeV/nucleon reaction. Comparison with large-scale shell model calculations using SDPF-U-MIX interaction. Discussed configurations. Systematics of quadrupole moments for 27,29,31,33Al.

doi: 10.1103/PhysRevC.94.034312
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2016HE14      Phys.Rev. C 94, 054321 (2016)

H.Heylen, C.Babcock, R.Beerwerth, J.Billowes, M.L.Bissell, K.Blaum, J.Bonnard, P.Campbell, B.Cheal, T.Day Goodacre, D.Fedorov, S.Fritzsche, R.F.Garcia Ruiz, W.Geithner, Ch.Geppert, W.Gins, L.K.Grob, M.Kowalska, K.Kreim, S.M.Lenzi, I.D.Moore, B.Maass, S.Malbrunot-Ettenauer, B.Marsh, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, J.Papuga, R.Rossel, S.Rothe, R.Sanchez, Y.Tsunoda, C.Wraith, L.Xie, X.F.Yang, D.T.Yordanov

Changes in nuclear structure along the Mn isotopic chain studied via charge radii

ATOMIC PHYSICS 51,53,54,55,56,57,58,59,60,61,62,63,64Mn; measured hyperfine spectra using collinear laser spectroscopy at ISOLDE-CERN; deduced charge radii. Isotopes produced in bombardment of uranium carbide target with 1.4-GeV proton beam. Mass and field shift factors calculated in multiconfiguration Dirac-Fock framework and combined with King plot analysis. Comparison with Duflo-Zuker formula.

NUCLEAR STRUCTURE 53,55,57,59,61,63,65Mn; calculated potential energy surfaces using Monte Carlo shell-model. Systematics of S(2n) values for Z=20-28, N=24-46 nuclei.

doi: 10.1103/PhysRevC.94.054321
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2016LY01      Phys.Rev. C 93, 014319 (2016)

K.M.Lynch, T.E.Cocolios, J.Billowes, M.L.Bissell, I.Budincevic, T.Day Goodacre, R.P.de Groote, G.J.Farooq-Smith, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, H.Heylen, R.Li, B.A.Marsh, G.Neyens, R.E.Rossel, S.Rothe, H.H.Stroke, K.D.A.Wendt, S.G.Wilkins, X.Yang

Combined high-resolution laser spectroscopy and nuclear decay spectroscopy for the study of the low-lying states in 206Fr, 202At, and 198Bi

NUCLEAR REACTIONS U(p, F)206Fr/206mFr, E=1.4 GeV; measured collinear resonance ionization spectrum of 3(+) g.s., 7(+) and 10(-) isomers relative to that for 221Fr using ISCOOL setup at ISOLDE-CERN.

ATOMIC PHYSICS 206,206mFr; measured hyperfine structure, collinear resonance ionization spectrum for 206Fr, 206m1Fr and 206m2Fr; deduced nuclear spin, hyperfine structure parameters of atomic levels, isotope shifts, isomer shifts for ground state and isomers of 206Fr.

NUCLEAR MOMENTS 206,206mFr; measured hyperfine structure with collinear resonance ionization spectroscopy of 206Fr, 206m1Fr and 206m2Fr using CRIS at CERN-ISOLDE; deduced levels, J, magnetic dipole and electric quadrupole moments, isotope and isomer shifts, rms charge radii. Comparison with previous experimental values.

RADIOACTIVITY 206,206mFr, 202,202mAt(α)[206Fr from U(p, F), E=1.4 GeV; 202At from 206Fr α decay]; measured Eα, Iα, α-decay branching ratios for decays of 206Fr, 206m1Fr, 206m2Fr, 202At, 202m1At and 202m2At using laser-assisted nuclear decay spectroscopy at ISOLDE-CERN. 198Bi, 202At; deduced levels, isomers, J, π, α-hindrance factors, configurations. Comparison with previous experimental values.

doi: 10.1103/PhysRevC.93.014319
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2016NE04      J.Phys.(London) G43, 024007 (2016)

G.Neyens

Shape coexistence in the N = 19 and N = 21 isotones

NUCLEAR STRUCTURE 31,33Mg; analyzed available data; deduced shape coexistence.

doi: 10.1088/0954-3899/43/2/024007
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2016YA02      Phys.Rev.Lett. 116, 182502 (2016)

X.F.Yang, C.Wraith, L.Xie, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, K.T.Flanagan, R.F.Garcia Ruiz, W.Gins, C.Gorges, L.K.Grob, H.Heylen, S.Kaufmann, M.Kowalska, J.Kraemer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, R.Sanchez, D.T.Yordanov

Isomer Shift and Magnetic Moment of the Long-Lived 1/2+ Isomer in 7930Zn49: Signature of Shape Coexistence near 78Ni

NUCLEAR MOMENTS 67,79Zn [from U(p, X), E=1.4 GeV]; measured hyperfine spectra of the ground and isomeric states; deduced nuclear moments, g factors, root-mean-square charge radii. Comparison with available data.

doi: 10.1103/PhysRevLett.116.182502
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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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2015BA49      Phys.Lett. B 750, 176 (2015)

C.Babcock, H.Heylen, J.Billowes, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.F.Garcia Ruiz, C.Geppert, W.Gins, M.Kowalska, K.Kreim, S.M.Lenzi, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, D.T.Yordanov

Evidence for Increased neutron and proton excitations between 51-63Mn

NUCLEAR MOMENTS 51,52,53,54,55,56,57,58,59,60,61,62,63Mn; measured hyperfine structures; deduced J, magnetic dipole moments. Comparison with large-scale shell-model calculations using different model spaces and effective interactions.

doi: 10.1016/j.physletb.2015.09.012
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2015DE28      Phys.Rev.Lett. 115, 132501 (2015)

R.P.de Groote, I.Budincevic, J.Billowes, M.L.Bissell, T.E.Cocolios, G.J.Farooq-Smith, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, H.Heylen, R.Li, K.M.Lynch, B.A.Marsh, G.Neyens, R.E.Rossel, S.Rothe, H.H.Stroke, K.D.A.Wendt, S.G.Wilkins, X.Yang

Use of a Continuous Wave Laser and Pockels Cell for Sensitive High-Resolution Collinear Resonance Ionization Spectroscopy

NUCLEAR MOMENTS 219,221Fr; measured resonance ionization and hyperfine spectra; deduced spectroscopic quadrupole moment values. Comparison with available data.

doi: 10.1103/PhysRevLett.115.132501
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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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2015HE10      Acta Phys.Pol. B46, 699 (2015)

H.Heylen, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.F.Garcia Ruiz, Ch.Geppert, W.Gins, K.Kreim, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, D.T.Yordanov

Collinear Laser Spectroscopy on Neutron-rich Mn Isotopes Approaching N = 40

NUCLEAR REACTIONS U(p, X)51Mn/53Mn/54Mn/55Mn/56Mn/57Mn/58Mn/59Mn/60Mn/61Mn/62Mn/63Mn/64Mn, E=1.4 GeV; measured hyperfine spectra; deduced J, g-factors, quadrupole moments.

doi: 10.5506/APhysPolB.46.699
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2015HE28      Phys.Rev. C 92, 044311 (2015)

H.Heylen, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.F.Garcia Ruiz, Ch.Geppert, W.Gins, M.Kowalska, K.Kreim, S.M.Lenzi, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, D.T.Yordanov

Spins and magnetic moments of 58, 60, 62, 64Mn ground states and isomers

NUCLEAR MOMENTS 54,56,58,60,62,64Mn; measured hyperfine spectra using laser ion source (RILIS), high-resolution separator (HRS), cooler-buncher (ISCOOL), and collinear laser spectroscopy beam line (COLLAPS) at ISOLDE-CERN; deduced levels, J, hyperfine structure parameters, magnetic dipole, moments and electric quadrupole moments for ground states and isomers. Mn beams produced in U(p, X), E=1.4 GeV reaction. Comparison with large-scale shell-model calculations using GXPF1A and LNPS effective interactions.

doi: 10.1103/PhysRevC.92.044311
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2015RU02      Phys.Rev. C 91, 041304 (2015)

R.F.Garcia Ruiz, M.L.Bissell, K.Blaum, N.Frommgen, M.Hammen, J.D.Holt, M.Kowalska, K.Kreim, J.Menendez, R.Neugart, G.Neyens, W.Nortershauser, F.Nowacki, J.Papuga, A.Poves, A.Schwenk, J.Simonis, D.T.Yordanov

Ground-state electromagnetic moments of calcium isotopes

NUCLEAR MOMENTS 43,45,47,49,51Ca; measured hyperfine spectra, hyperfine structure constants, J, g factors, magnetic and quadrupole moments using collinear laser spectroscopy (COLLAPS) and radiofrequency quadrupole (RFQ) beam cooler ISCOOL at ISOLDE-CERN facility. Comparison with theoretical predictions using KB3G, GXPF1A, SDPF.SM and three-nucleon forces (NN+3N). Ca beams produced in bombardment of uranium carbide target with 1.4-GeV protons at ISOLDE-CERN.

doi: 10.1103/PhysRevC.91.041304
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2014BI10      Phys.Rev.Lett. 113, 052502 (2014)

M.L.Bissell, J.Papuga, H.Naidja, K.Kreim, K.Blaum, M.De Rydt, R.F.Garcia Ruiz, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, F.Nowacki, M.M.Rajabali, R.Sanchez, K.Sieja, D.T.Yordanov

Proton-Neutron Pairing Correlations in the Self-Conjugate Nucleus 38K Probed via a Direct Measurement of the Isomer Shift

ATOMIC PHYSICS 38K; measured frequency of hyperfine spectra; deduced isomer shift, rms charge radii. Comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevLett.113.052502
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2014BU06      Phys.Rev. C 90, 014317 (2014)

I.Budincevic, J.Billowes, M.L.Bissell, T.E.Cocolios, R.P.de Groote, S.De Schepper, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, H.Heylen, K.M.Lynch, B.A.Marsh, G.Neyens, T.J.Procter, R.E.Rossel, S.Rothe, I.Strashnov, H.H.Stroke, K.D.A.Wendt

Laser spectroscopy of francium isotopes at the borders of the region of reflection asymmetry

NUCLEAR MOMENTS 218m,219,229,231Fr; measured hyperfine spectra, isotope shifts using Collinear Resonance Ionization Spectroscopy (CRIS) at ISOLDE-CERN facility; deduced rms charge radii, magnetic dipole moments, nuclear g factors, configuration. Comparison with previous experimental results. Discussed charge radii odd-even staggering. Reflection-asymmetric shapes.

RADIOACTIVITY 218mFr(α); measured Eα, half-life.

doi: 10.1103/PhysRevC.90.014317
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2014KR04      Phys.Lett. B 731, 97 (2014)

K.Kreim, M.L.Bissell, J.Papuga, K.Blaum, M.De Rydt, R.F.Garcia Ruiz, S.Goriely, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, R.Sanchez Alarcon, H.H.Stroke, D.T.Yordanov

Nuclear charge radii of potassium isotopes beyond N = 28

ATOMIC PHYSICS 38,39,42,44,46,47,48,49,50,51K; measured optical spectra, hyperfine structure; deduced spins, mean square charge radii. Comparison with HFB-24 and DD-ME2 theoretical models.

doi: 10.1016/j.physletb.2014.02.012
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2014LY01      Phys.Rev.X 4, 011055 (2014)

K.M.Lynch, J.Billowes, M.L.Bissell, I.Budincevic, T.E.Cocolios, R.P.De Groote, S.De Schepper, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, H.Heylen, B.A.Marsh, G.Neyens, T.J.Procter, R.E.Rossel, S.Rothe, I.Strashnov, H.H.Stroke, K.D.A.Wendt

Decay-Assisted Laser Spectroscopy of Neutron-Deficient Francium

RADIOACTIVITY 202,203,204,205,206,218,219,221,229,231Fr(α) [from U(p, X), E=1.4 GeV]; measured decay products, hyperfine structure, Eα, Iα; deduced T1/2, magnetic moments, charge radii, quadrupole deformation parameters, yields of neutron-deficient francium isotopes, nuclear g factors. Comparison with available data.

doi: 10.1103/PhysRevX.4.011055
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2014PA45      Phys.Rev. C 90, 034321 (2014)

J.Papuga, M.L.Bissell, K.Kreim, C.Barbieri, K.Blaum, M.De Rydt, T.Duguet, R.F.Garcia Ruiz, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, R.Sanchez, N.Smirnova, V.Soma, D.T.Yordanov

Shell structure of potassium isotopes deduced from their magnetic moments

NUCLEAR MOMENTS 38,38m,39,42,44,46,47,48,49,50,51K; measured hyperfine structure using high-resolution collinear laser spectroscope COLLAPS and Paul trap ISCOOL at ISOLDE-CERN; deduced J, magnetic moments, configurations, magnetic hyperfine parameters. Potassium isotopes produced in U(p, X), E=1 GeV at ISOLDE-CERN. 38,40,41,42,43,44,45,46,47,48,49,51K; deduced hyperfine structure anomalies. Comparison with shell model calculations using SDPF-NR and SDPF-U effective interactions, and with previous experimental results.

doi: 10.1103/PhysRevC.90.034321
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2013DE06      At.Data Nucl.Data Tables 99, 391 (2013)

M.De Rydt, M.Depuydt, G.Neyens

Evaluation of the ground-state quadrupole moments of the π(sd) nuclei

COMPILATION 13,17,19O, 17,19,20,21F, 21,23Ne, 20,21,22,23,25,26,27,28,29Na, 23,25Mg, 25,26,27,28,31,32Al, 27Si, 33,35S, 35,37Cl, 35,37,39,41,43Ar, 37,39,40,41K, 41,43,45Ca;compiled evaluated ground-state quadrupole moments.

doi: 10.1016/j.adt.2011.12.005
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2013FL09      Phys.Rev.Lett. 111, 212501 (2013)

K.T.Flanagan, K.M.Lynch, J.Billowes, M.L.Bissell, I.Budincevic, T.E.Cocolios, R.P.de Groote, S.De Schepper, V.N.Fedosseev, S.Franchoo, R.F.Garcia Ruiz, H.Heylen, B.A.Marsh, G.Neyens, T.J.Procter, R.E.Rossel, S.Rothe, I.Strashnov, H.H.Stroke, K.D.A.Wendt

Collinear Resonance Ionization Spectroscopy of Neutron-Deficient Francium Isotopes

NUCLEAR MOMENTS 202,203,204,205Fr; measured hyperfine spectra, isotope shifts; deduced charge radii, nuclear magnetic moments.

doi: 10.1103/PhysRevLett.111.212501
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2013NE08      J.Phys.:Conf.Ser. 445, 012007 (2013)

G.Neyens

Ground state moments and spins of neutron-rich K and Al isotopes as probes for changes in nuclear structure

NUCLEAR MOMENTS 31,33Al, 49,51K; measured hfs. 49,51K deduced μ, ground-state spin. 31,33Al deduced quadrupole moment. Compared with data on nearby isotopes and with calculations.

doi: 10.1088/1742-6596/445/1/012007
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2013PA11      Phys.Rev.Lett. 110, 172503 (2013)

J.Papuga, M.L.Bissell, K.Kreim, K.Blaum, B.A.Brown, M.De Rydt, R.F.Garcia Ruiz, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, M.M.Rajabali, R.Sanchez, Y.Utsuno, D.T.Yordanov

Spins and Magnetic Moments of 49K and 51K: Establishing the 1/2+ and 3/2+ Level Ordering Beyond N=28

NUCLEAR MOMENTS 39,47,49,51K; measured hyperfine spectra; deduced dipole magnetic moments, g-factors. Comparison with available data, shell model calculations.

doi: 10.1103/PhysRevLett.110.172503
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2012CH16      Phys.Rev.Lett. 108, 162501 (2012)

R.Chevrier, J.M.Daugas, L.Gaudefroy, Y.Ichikawa, H.Ueno, M.Hass, H.Haas, S.Cottenier, N.Aoi, K.Asahi, D.L.Balabanski, N.Fukuda, T.Furukawa, G.Georgiev, H.Hayashi, H.Iijima, N.Inabe, T.Inoue, M.Ishihara, Y.Ishii, D.Kameda, T.Kubo, T.Nanao, G.Neyens, T.Ohnishi, M.M.Rajabali, K.Suzuki, H.Takeda, M.Tsuchiya, N.Vermeulen, H.Watanabe, A.Yoshimi

Is the 7/21-1 Isomer State of 43S Spherical?

NUCLEAR MOMENTS 43S; measured isomer deexciting Eγ, Iγ; deduced spectroscopic quadrupole moment. Comparison with SDPF-U interaction shell model calculations.

doi: 10.1103/PhysRevLett.108.162501
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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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2012LY04      J.Phys.:Conf.Ser. 381, 012128 (2012)

K.M.Lynch, M.M.Rajabali, H.Aghaei-Khozani, J.Billowes, M.L.Bissell, F.Le Blanc, B.Cheal, T.E.Cocolios, S.De Schepper, K.Dewolf, K.T.Flanagan, M.Hori, T.Kobayashi, B.A.Marsh, G.Neyens, J.Papuga, T.J.Procter, S.Rothe, G.Simpson, A.J.Smith, H.H.Stroke, K.Wendt

Laser assisted decay spectroscopy at the CRIS beam line at ISOLDE

doi: 10.1088/1742-6596/381/1/012128
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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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2012PR15      J.Phys.:Conf.Ser. 381, 012070 (2012)

T.J.Procter, H.Aghaei-Khozani, J.Billowes, M.L.Bissell, F.Le Blanc, B.Cheal, T.E.Cocolios, K.T.Flanagan, H.Hori, T.Kobayashi, D.Lunney, K.M.Lynch, B.A.Marsh, G.Neyens, J.Papuga, M.M.Rajabali, S.Rothe, G.Simpson, A.J.Smith, H.H.Stroke, W.Vanderheijden, K.Wendt

Development of the CRIS (Collinear Resonant Ionisation Spectroscopy) beam line

doi: 10.1088/1742-6596/381/1/012070
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2012SH22      Phys.Lett. B 714, 246 (2012)

K.Shimada, H.Ueno, G.Neyens, K.Asahi, D.L.Balabanski, J.M.Daugas, M.Depuydt, M.De Rydt, L.Gaudefroy, S.Grevy, Y.Hasama, Y.Ichikawa, D.Kameda, P.Morel, T.Nagatomo, L.Perrot, Ch.Stodel, J.-C.Thomas, Y.Utsuno, W.Vanderheijden, N.Vermeulen, P.Vingerhoets, E.Yagi, K.Yoshida, A.Yoshimi

Erosion of N = 20 shell in 33Al investigated through the ground-state electric quadrupole moment

NUCLEAR MOMENTS 33Al; measured NMR spectrum; deduced ground state electric quadrupole moment. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2012.07.030
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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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2011BA02      Phys.Rev. C 83, 014304 (2011)

D.L.Balabanski, M.Ionescu-Bujor, A.Iordachescu, D.Bazzacco, F.Brandolini, D.Bucurescu, S.Chmel, M.Danchev, M.De Poli, G.Georgiev, H.Haas, H.Hubel, N.Marginean, R.Menegazzo, G.Neyens, P.Pavan, C.Rossi Alvarez, C.A.Ur, K.Vyvey, S.Frauendorf

Spin, quadrupole moment, and deformation of the magnetic-rotational band head in 193Pb

NUCLEAR REACTIONS 170Er(28Si, 5n), E=143 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γ(t), time-differential perturbed angular distribution (TDPAD). 193Pb; deduced levels, J, π, half-lives, spectroscopic quadrupole moments of the isomer and other states, configuration. Comparison with pairing-plus-quadrupole tilted-axis cranking calculations.

NUCLEAR MOMENTS 193Pb; measured spectroscopic quadrupole moments of the 13/2+ isomer and excited states by TDPAD. Comparison with values of 192,194,195,196Pb nuclei.

doi: 10.1103/PhysRevC.83.014304
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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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2011NE14      Phys.Rev. C 84, 064310 (2011)

G.Neyens

Multiparticle-multihole states in 31Mg and 33Mg: A critical evaluation

NUCLEAR STRUCTURE 31,33Mg; calculated levels, J, π, magnetic moments, particle-hole nature using Antisymmetrized molecular dynamics (AMD) with the generator coordinate method (GCM); reviewed and compared experimental data from different reactions and decays.

RADIOACTIVITY 31Na, 31Mg(β-); 32Na(β-n); 33Na, 33Mg(β-); 33Mg(β-n); compiled and reviewed decay data. Comparison with theoretical calculations.

doi: 10.1103/PhysRevC.84.064310
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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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2010AT03      Europhys.Lett. 91, 42001 (2010)

L.Atanasova, D.L.Balabanski, S.K.Chamoli, M.Hass, G.S.Simpson, D.Bazzacco, F.Becker, P.Bednarczyk, G.Benzoni, N.Blasi, A.Blazhev, A.Bracco, C.Brandau, L.Caceres, F.Camera, F.C.L.Crespi, P.Detistov, P.Doornenbal, C.Fahlander, E.Farnea, G.Georgiev, J.Gerl, K.A.Gladnishki, M.Gorska, J.Grebosz, R.Hoischen, G.Ilie, M.Ionescu-Bujor, A.Iordachescu, A.Jungclaus, G.Lo Bianco, M.Kmiecik, I.Kojouharov, N.Kurz, S.Lakshmi, R.Lozeva, A.Maj, D.Montanari, G.Neyens, M.Pfutzner, S.Pietri, Zs.Podolyak, W.Prokopowicz, D.Rudolph, G.Rusev, T.R.Saito, A.Saltarelli, H.Schaffner, R.Schwengner, S.Tashenov, J.J.Valiente-Dobon, N.Vermeulen, J.Walker, E.Werner-Malento, O.Wieland, H.J.Wollersheim, H.Grawe, M.Hjorth-Jensen

g-factor measurements at RISING: The cases of 127Sn and 128Sn

NUCLEAR REACTIONS Be(136Xe, X)127Sn/128Sn, E=600 MeV/nucleon; measured reaction products, Larmor precession, Eγ, Iγ; deduced g factors for Sn isomers, J, π. Comparison with shell model calculations.

doi: 10.1209/0295-5075/91/42001
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2010BO22      Eur.Phys.J. A 45, 159 (2010)

I.N.Borzov, E.E.Saperstein, S.V.Tolokonnikov, G.Neyens, N.Severijns

Description of magnetic moments of long isotopic chains within the FFS theory

NUCLEAR STRUCTURE 57,59,61,63,65,67,69,71,73,75Cu, 111,113,115,117,119,121,123,125,127,129,131Sn, 133Sb, 135I, 137Cs, 139La, 141Pr, 143Pm, 145Eu, 147Tb, 183,185,187,189,191,193,195,199,201,203,207,209,211Pb; calculated μ for ground and excited states using self-consistent finite Fermi system theory with pairing and quasiparticle continuum. Comparison with data and other calculations.

doi: 10.1140/epja/i2010-10985-y
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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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2010DE11      Phys.Rev. C 81, 034308 (2010), Publishers Note Phys.Rev. C 81, 059903 (2010)

M.De Rydt, J.M.Daugas, F.de Oliveira Santos, L.Gaudefroy, S.Grevy, D.Kameda, V.Kumar, R.Lozeva, T.J.Mertzimekis, P.Morel, T.Nagatomo, G.Neyens, L.Perrot, O.Sorlin, C.Stodel, J.C.Thomas, N.Vermeulen, P.Vingerhoets

g factor of the 44Cl ground state: Probing the reduced Z=16 and N=28 gaps

NUCLEAR REACTIONS 9Be(48Ca, X)44Cl, E=60 MeV/nucleon; measured β-NMR resonance Larmor frequency; deduced g factor, levels, J, π, configurations.

NUCLEAR MOMENTS 44Cl; measured g factor by Larmor frequency using β-NMR method. Comparison with systematics of 39,41,43,45Cl, 46K and with shell-model calculations.

NUCLEAR STRUCTURE 39,41,43,44,45Cl, 46K; calculated levels, J, π, g factors and configurations using large-scale shell-model approach with the SDPF-U residual interaction.

doi: 10.1103/PhysRevC.81.034308
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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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2010IL01      Phys.Lett. B 687, 305 (2010)

G.Ilie, G.Neyens, G.S.Simpson, J.Jolie, A.Blazhev, H.Grawe, R.L.Lozeva, N.Vermeulen, L.Atanasova, D.L.Balabanski, F.Becker, P.Bednarczyk, C.Brandau, L.Caceres, S.K.Chamoli, J.M.Daugas, P.Doornenbal, J.Gerl, M.Gorska, J.Grebosz, M.Hass, M.Ionescu-Bujor, A.Jungclaus, M.Kmiecik, I.Kojouharov, N.Kurz, A.Maj, S.Mallion, O.Perru, M.Pfutzner, Zs.Podolyak, W.Prokopowicz, M.De Rydt, T.R.Saito, H.Schaffner, K.Turzo, J.Walker, E.Werner-Malento, H.J.Wollersheim

g Factor of the 7- isomer in 126Sn and first observation of spin-alignment in relativistic fission

NUCLEAR REACTIONS 9Be(238U, F), E=750 MeV/nucleon; measured Eγ, Iγ, γγ-coin, half-lives. 126Sn; deduced levels, J, π, g factor. Comparison with shell model calculations and adjacent isotope systematics.

doi: 10.1016/j.physletb.2010.03.033
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2010KM01      Eur.Phys.J. A 45, 153 (2010)

M.Kmiecik, A.Maj, J.Gerl, G.Neyens, L.Atanasova, D.L.Balabanski, F.Becker, P.Bednarczyk, G.Benzoni, N.Blasi, A.Bracco, S.Brambilla, L.Caceres, F.Camera, M.Ciemala, F.C.L.Crespi, S.K.Chamoli, S.Chmel, J.M.Daugas, P.Detistov, P.Doornenbal, G.Georgiev, K.Gladnishki, M.Gorska, H.Grawe, J.Grebosz, M.Hass, R.Hoischen, G.Ilie, M.Ionescu-Bujor, J.Jolie, I.Kojuharov, A.Krasznahorkay, R.Kulessa, M.Lach, S.Lakshmi, S.Leoni, G.Lo Bianco, R.Lozeva, K.H.Maier, S.Mallion, K.Mazurek, W.Meczynski, B.Million, D.Montanari, S.Myalski, C.Petrache, M.Pfutzner, S.Pietri, Zs.Podolyak, W.Prokopowicz, D.Rudolph, N.Saito, T.R.Saito, A.Saltarelli, G.S.Simpson, J.Styczen, N.Vermeulen, E.Werner-Malento, O.Wieland, H.J.Wollersheim, M.Zieblinski

Spin-alignment and g-factor measurement of the Iπ = 12+ isomer in 192Pb produced in the relativistic-energy fragmentation of a 238U beam

doi: 10.1140/epja/i2010-11003-4
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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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2010YO01      Phys.Rev.Lett. 104, 129201 (2010)

D.T.Yordanov, K.Blaum, M.De Rydt, M.Kowalska, R.Neugart, G.Neyens, I.Hamamoto

Comment on "Intruder Configurations in the A=33 Isobars: 33Mg and 33Al"

NUCLEAR STRUCTURE 33Mg, 33Al; calculated magnetic moments; deduced 33Mg π. Comparison with experimental data.

doi: 10.1103/PhysRevLett.104.129201
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2009DE25      Phys.Lett. B 678, 344 (2009)

M.De Rydt, G.Neyens, K.Asahi, D.L.Balabanski, J.M.Daugas, M.Depuydt, L.Gaudefroy, S.Grevy, Y.Hasama, Y.Ichikawa, P.Morel, T.Nagatomo, T.Otsuka, L.Perrot, K.Shimada, C.Stodel, J.C.Thomas, H.Ueno, Y.Utsuno, W.Vanderheijden, N.Vermeulen, P.Vingerhoets, A.Yoshimi

Precision measurement of the electric quadrupole moment of 31Al and determination of the effective proton charge in the sd-shell

RADIOACTIVITY 31Al(β-); measured electric quadrupole coupling constant; deduced quadrupole moment, proton effective charge using two β-NQR techniques. Comparison with shell model. Quadrupole systematics in nearby nuclei discussed.

doi: 10.1016/j.physletb.2009.06.043
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2009DE34      Phys.Rev. C 80, 037306 (2009)

M.De Rydt, D.L.Balabanski, J.M.Daugas, P.Himpe, D.Kameda, R.Lozeva, P.Morel, L.Perrot, K.Shimada, C.Stodel, T.Sugimoto, J.C.Thomas, H.Ueno, N.Vermeulen, P.Vingerhoets, A.Yoshimi, G.Neyens

g factors of 17N and 18N remeasured

NUCLEAR MOMENTS 17,18N; measured g factors using β-NMR technique on spin-polarized fragment beams; deduced magnetic moments. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.80.037306
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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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2009KR05      Phys.Lett. B 678, 465 (2009)

J.Kramer, K.Blaum, M.De Rydt, K.T.Flanagan, Ch.Geppert, M.Kowalska, P.Lievens, R.Neugart, G.Neyens, W.Nortershauser, H.H.Stroke, P.Vingerhoets, D.T.Yordanov

Nuclear ground-state spin and magnetic moment of 21Mg

NUCLEAR MOMENTS 21Mg [from Si(p, X), E=1.4 GeV]; measured hfs; deduced ground state spin, g-factor, μ using collinear laser spectroscopy and NMR; calculated J, π, configuration. Comparison with shell model calculations and discussed 21F and other mirror pairs.

doi: 10.1016/j.physletb.2009.06.063
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2009MA75      Eur.Phys.J. A 42, 503 (2009)

E.Mane, J.Billowes, K.Blaum, P.Campbell, B.Cheal, P.Delahaye, K.T.Flanagan, D.H.Forest, H.Franberg, C.Geppert, T.Giles, A.Jokinen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, I.Podadera, G.Tungate, P.Vingerhoets, D.T.Yordanov

An ion cooler-buncher for high-sensitivity collinear laser spectroscopy at ISOLDE

NUCLEAR MOMENTS 46K; measured hfs. Testing of new laser spectroscopy technique.

doi: 10.1140/epja/i2009-10828-0
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2009NA41      Eur.Phys.J. A 42, 383 (2009)

T.Nagatomo, K.Shimada, K.Asahi, D.L.Balabanski, J.M.Daugas, M.Depuydt, M.De Rydt, L.Gaudefroy, S.Grevy, Y.Hasama, Y.Ichikawa, D.Kameda, P.Morel, L.Perrot, C.Stodel, J.C.Thomas, W.Vanderheijden, N.Vermeulen, P.Vingerhoets, A.Yoshimi, G.Neyens, H.Ueno

Electric quadrupole moment of the neutron-rich 33Al

RADIOACTIVITY 33Al(β-)[from Be(36S, X), E=77.5 MeV/nucleon]; measured β-NQR spectra from polarized 33Al nuclei. LISE spectrometer at GANIL.

NUCLEAR MOMENTS 33Al; measured electric quadrupole moment by β-ray detected nuclear quadrupole resonance (β-NQR) method. Relevance to 'Island of Inversion'. Polarized 33Al nuclei.

doi: 10.1140/epja/i2009-10885-3
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2008HI01      Phys.Lett. B 658, 203 (2008)

P.Himpe, G.Neyens, D.L.Balabanski, G.Belier, J.M.Daugas, F.de Oliveira Santos, M.De Rydt, K.T.Flanagan, I.Matea, P.Morel, Yu.E.Penionzhkevich, L.Perrot, N.A.Smirnova, C.Stodel, J.C.Thomas, N.Vermeulen, D.T.Yordanov, Y.Utsuno, T.Otsuka

g factor of the exotic N = 21 isotope 34Al: probing the N = 20 and N = 28 shell gaps at the border of the "island of inversion"

RADIOACTIVITY 34Al(β-); measured β-assymetry. 34Al; deduced g-factor, μ; deduced ground state J, π and intruder configuration contribution.

doi: 10.1016/j.physletb.2007.11.017
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2008KO05      Phys.Rev. C 77, 034307 (2008)

M.Kowalska, D.T.Yordanov, K.Blaum, P.Himpe, P.Lievens, S.Mallion, R.Neugart, G.Neyens, N.Vermeulen

Nuclear ground-state spins and magnetic moments of 27Mg, 29Mg, and 31Mg

NUCLEAR MOMENTS 25,27,29,31Mg [from 238U(p, X), E=1.4 GeV]; measured J, π of ground states, magnetic moments, hyperfine structure using laser and β-NMR spectroscopy. Compared with shell-model calculations.

doi: 10.1103/PhysRevC.77.034307
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2008LO07      Phys.Rev. C 77, 064313 (2008)

R.L.Lozeva, G.S.Simpson, H.Grawe, G.Neyens, L.A.Atanasova, D.L.Balabanski, D.Bazzacco, F.Becker, P.Bednarczyk, G.Benzoni, N.Blasi, A.Blazhev, A.Bracco, C.Brandau, L.Caceres, F.Camera, S.K.Chamoli, F.C.L.Crespi, J.-M.Daugas, P.Detistov, M.De Rydt, P.Doornenbal, C.Fahlander, E.Farnea, G.Georgiev, J.Gerl, K.A.Gladnishki, M.Gorska, J.Grebosz, M.Hass, R.Hoischen, G.Ilie, M.Ionescu-Bujor, A.Iordachescu, J.Jolie, A.Jungclaus, M.Kmiecik, I.Kojouharov, N.Kurz, S.P.Lakshmi, G.Lo Bianco, S.Mallion, A.Maj, D.Montanari, O.Perru, M.Pfutzner, S.Pietri, J.A.Pinston, Zs.Podolyak, W.Prokopowicz, D.Rudolph, G.Rusev, T.R.Saitoh, A.Saltarelli, H.Schaffner, R.Schwengner, S.Tashenov, K.Turzo, J.J.Valiente-Dobon, N.Vermeulen, J.Walker, E.Werner-Malento, O.Wieland, H.-J.Wollersheim

New sub-μs isomers in 125, 127, 129Sn and isomer systematics of 124-130Sn

NUCLEAR REACTIONS 9Be(136Xe, X), E=600 MeV/nucleon; 9Be(238U, X), E=750 MeV/nucleon; measured Eγ, Iγ, γγ-coin, multipolarities. 125,127,129Sn; deduced levels, J, π, half-lives of sub-υs states, B(E2). 124,125,126,127,128,129,130Sn; analyzed B(E2).

doi: 10.1103/PhysRevC.77.064313
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2008NE11      Phys.Rev.Lett. 101, 132502 (2008)

R.Neugart, D.L.Balabanski, K.Blaum, D.Borremans, P.Himpe, M.Kowalska, P.Lievens, S.Mallion, G.Neyens, N.Vermeulen, D.T.Yordanov

Precision Measurement of 11Li Moments: Influence of Halo Neutrons on the 9Li Core

NUCLEAR MOMENTS 11Li; measured electric dipole and quadrupole moments using a NMR based technique.

doi: 10.1103/PhysRevLett.101.132502
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2007AT03      Prog.Part.Nucl.Phys. 59, 355 (2007)

L.Atanasova, D.L.Balabanski, M.Hass, F.Becker, P.Bednarczyk, S.K.Chamoli, P.Doornenbal, G.Georgiev, J.Gerl, K.A.Gladnishki, M.Gorska, J.Grebosz, M.Kmiecik, S.Lakshmi, R.Lozeva, A.Maj, G.Neyens, M.Pfutzner, G.Simpson, N.Vermeulen, H.J.Wollersheim, and the g-RISING Collaboration

A RISING g-factor measurement of the 19/2+ isomer in 127Sn

NUCLEAR REACTIONS 136Xe(Be, x)127Sn, E=600 MeV/nucleon; measured g-factor for 19/2+ isomer using time-differential perturbed angular distribution method.

doi: 10.1016/j.ppnp.2006.12.016
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2007GO19      Acta Phys.Pol. B38, 1219 (2007)

M.Gorska, A.Banu, P.Bednarczyk, A.Bracco, A.Burger, F.Camera, E.Caurier, P.Doornenbal, J.Gerl, H.Grawe, M.Honma, H.Hubel, A.Jungclaus, A.Maj, G.Neyens, F.Nowacki, T.Otsuka, M.Pfuetzner, S.Pietri, Zs.Podolyak, A.Poves, P.H.Regan, P.Reiter, D.Rudolph, H.J.Wollersheim, and the RISING Collaboration

Nuclear Structure Far off Stability - Rising Campaigns


2007IO01      Acta Phys.Pol. B38, 1249 (2007)

M.Ionescu-Bujor, A.Iordachescu, N.Marginean, C.A.Ur, G.Suliman, D.Bucurescu, D.L.Balabanski, F.Brandolini, S.Chmel, K.A.Gladnishki, H.Hubel, R.Marginean, G.Neyens

Quadrupole Moments for Isomeric States with Normal and Intruder Configurations in Neutron-Deficient Pb Nuclei

NUCLEAR REACTIONS 168Er(28Si, 4n)192Pb, 170Er(29Si, 5n)170Er, E not given; measured Eγ, Iγ(θ, E, t). 192,194Pb deduced quadrupole moments of isomeric states using the TDPAD method.


2007IO03      Phys.Lett. B 650, 141 (2007)

M.Ionescu-Bujor, A.Iordachescu, N.Marginean, C.A.Ur, D.Bucurescu, G.Suliman, D.L.Balabanski, F.Brandolini, S.Chmel, P.Detistov, K.A.Gladnishki, H.Hubel, S.Mallion, R.Marginean, N.H.Medina, D.R.Napoli, G.Neyens, P.Pavan, R.V.Ribas, C.Rusu, K.Turzo, N.Vermeulen

Shape coexistence in neutron-deficient Pb nuclei probed by quadrupole moment measurements

NUCLEAR REACTIONS 168Er(28Si, 4n), 170Er(28Si, 5n), E=143 MeV; measured Eγ, Iγ, γγ-coin, time differential perturbed angular distributions, lifetimes. 192Pb, 194Pb deduced levels, J, π, spectroscopic quadrupole moments.

doi: 10.1016/j.physletb.2007.05.002
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2007NE10      Acta Phys.Pol. B38, 1237 (2007)

G.Neyens, L.Atanasova, D.L.Balabanski, F.Becker, P.Bednarczyk, L.Caceres, P.Doornenbal, J.Gerl, M.Gorska, J.Grebosz, M.Hass, G.Ilie, N.Kurz, I.Kojouharov, R.Lozeva, A.Maj, M.Pfutzner, S.Pietri, Zs.Podolyak, W.Prokopowicz, T.R.Saitoh, H.Schaffner, G.Simpson, N.Vermeulen, E.Werner-Malento, J.Walker, H.J.Wollersheim, D.Bazzacco, G.Benzoni, A.Blazhev, N.Blasi, A.Bracco, C.Brandau, F.Camera, S.K.Chamoli, S.Chmel, F.C.L.Crespi, J.M.Daugas, M.De Rydt, P.Detistov, C.Fahlander, E.Farnea, G.Georgiev, K.Gladnishki, R.Hoischen, M.Ionescu-Bujor, A.Iordachescu, J.Jolie, A.Jungclaus, M.Kmiecik, A.Krasznahorkay, R.Kulessa, S.Lakshmi, G.Lo Bianco, S.Mallion, K.Mazurek, W.Meczynski, D.Montanari, S.Myalsky, O.Perru, D.Rudolph, G.Rusev, A.Saltarelli, R.Schwengner, J.Styczen, K.Turzo, J.J.Valiente-Dobon, O.Wieland, M.Zieblinski

γ Factor Measurements on Relativistic Isomeric Beams Produced by Fragmentation and U-Fission: The g-Rising Project at GSI

NUCLEAR REACTIONS 9Be(238U, F)127Sn, E=750 MeV/nucleon; 9Be(136Xe, X)127Sn, E=650 MeV/nucleon; measured Eγ, Iγ(θ, H, t), (particle)γ-coinc. 127Sn deduced g-factor using TDPAD method.


2007NE14      Eur.Phys.J. Special Topics 150, 149 (2007)

G.Neyens, P.Himpe, D.L.Balabanski, P.Morel, L.Perrot, M.De Rydt, I.Stefan, C.Stodel, J.C.Thomas, N.Vermeulen, D.T.Yordanov

The "island of inversion" from a nuclear moments perspective and the g factor of 35Si

RADIOACTIVITY 35Si(β-); measured ground state g-factor using the β-NMR method.

doi: 10.1140/epjst/e2007-00291-7
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