NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = J.Kramer Found 25 matches. 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
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
2019MA33 Phys.Rev.Lett. 122, 182501 (2019) B.Maass, T.Huther, K.Konig, J.Kramer, J.Krause, A.Lovato, P.Muller, K.Pachucki, M.Puchalski, R.Roth, R.Sanchez, F.Sommer, R.B.Wiringa, W.Nortershauser Nuclear Charge Radii of 10, 11B NUCLEAR MOMENTS 10,11B; measured frequencies; deduced nuclear charge radii by combining high-accuracy ab initio mass-shift calculations and a high-accuracy measurement of the isotope shift.
doi: 10.1103/PhysRevLett.122.182501
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
1995VI13 Nucl.Instrum.Methods Phys.Res. B104, 395 (1995) R.D.Vis, A.C.Kik, J.L.A.M.Kramer The Nuclear Microprobe used to Investigate Meteorites NUCLEAR REACTIONS 24,25,26Mg(p, p'γ), E=3.4 MeV; measured thick target yields. 27Al, Mg, Si, S, Ca, Fe, Ni, Zn(p, X), E=3.4 MeV; measured γ, X-ray spectra.
doi: 10.1016/0168-583X(95)00391-6
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