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NSR database version of April 11, 2024.

Search: Author = C.Geppert

Found 44 matches.

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2023GA09      Phys.Rev. C 107, 045805 (2023)

R.Garg, S.Dellmann, C.Lederer-Woods, C.G.Bruno, K.Eberhardt, C.Geppert, T.Heftrich, I.Kajan, F.Kappeler, B.Phoenix, R.Reifarth, D.Schumann, M.Weigand, C.Wheldon

179Ta (n, γ) cross-section measurement and the astrophysical origin of the 180Ta isotope

NUCLEAR REACTIONS 179Ta(n, γ), E=thermal; measured Eγ, Iγ; deduced thermal and resonance-integral σ. Comparison to previous experimental data. Relevance to the production of 180Ta in s-process. Activation technique. Irradiation of the target at the TRIGA reactor in Mainz.

doi: 10.1103/PhysRevC.107.045805
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2023IS05      Phys.Rev. C 108, L051301 (2023)

J.Isaak, D.Savran, N.Pietralla, N.Tsoneva, A.Zilges, K.Eberhardt, C.Geppert, C.Gorges, H.Lenske, D.Renisch

Direct demonstration of the two-phonon structure of the Jnullp = 1-4742keV

doi: 10.1103/PhysRevC.108.L051301
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2023WE01      Nucl.Instrum.Methods Phys.Res. A1048, 167891 (2023)

M.Weigand, S.F.Dellmann, B.Bruckner, P.Erbacher, K.Eberhardt, C.Geppert, T.Heftrich, T.Kisselbach, D.Kurtulgil, M.Reich, R.Reifarth, M.Volknandt

Gamma intensities for the β-decay of 97Zr

RADIOACTIVITY 97Zr(β-) [from 96Zr(n, γ), E thermal]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities with help of GEANT simulations. Goethe University in Frankfurt, Germany.

doi: 10.1016/j.nima.2022.167891
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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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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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2018SK03      Phys.Rev.Lett. 120, 093001 (2018)

L.V.Skripnikov, S.Schmidt, J.Ullmann, C.Geppert, F.Kraus, B.Kresse, W.Nortershauser, A.F.Privalov, B.Scheibe, V.M.Shabaev, M.Voge A.V.Volotka

New Nuclear Magnetic Moment of 209Bi: Resolving the Bismuth Hyperfine Puzzle

NUCLEAR MOMENTS 209Bi; measured frequencies from nuclear magnetic resonance (NMR); deduced NMR spectra, nuclear magnetic moment, shielding constant. Comparison with available data.

doi: 10.1103/PhysRevLett.120.093001
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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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2017BI08      Phys.Rev. C 95, 045503 (2017)

G.Bison, M.Daum, K.Kirch, B.Lauss, D.Ries, P.Schmidt-Wellenburg, G.Zsigmond, T.Brenner, P.Geltenbort, T.Jenke, O.Zimmer, M.Beck, W.Heil, J.Kahlenberg, J.Karch, K.Ross, K.Eberhardt, C.Geppert, S.Karpuk, T.Reich, C.Siemensen, Y.Sobolev, N.Trautmann

Comparison of ultracold neutron sources for fundamental physics measurements

RADIOACTIVITY 1n(β-); measured ultracold neutron (UCN) density, and UCN lifetime inside the storage bottles at Mainz, PSI, PF2 and SUN-2 systems; experimental comparison of the leading UCN sources currently operating using a standard UCN storage bottle with a volume of 32 liters suitable for search for a permanent electric-dipole moment of the neutron (nEDM), and for other studies of fundamental parameters of the neutron in searches for new charge-parity-violating processes or exotic interactions beyond the Standard Model of particle physics.

doi: 10.1103/PhysRevC.95.045503
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2017KA59      Eur.Phys.J. A 53, 226 (2017)

J.Kahlenberg, D.Ries, K.U.Ross, C.Siemensen, M.Beck, C.Geppert, W.Heil, N.Hild, J.Karch, S.Karpuk, F.Kories, M.Kretschmer, B.Lauss, T.Reich, Y.Sobolev, N.Trautmann

Upgrade of the ultracold neutron source at the pulsed reactor TRIGA Mainz

doi: 10.1140/epja/i2017-12428-9
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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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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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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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2015FR08      Eur.Phys.J. D 69, 164 (2015)

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

Collinear laser spectroscopy of atomic cadmium

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

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

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

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

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

doi: 10.1088/0953-4075/48/24/245008
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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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2015UL01      J.Phys.(London) B48, 144022 (2015)

J.Ullmann, Z.Andelkovic, A.Dax, W.Geithner, C.Geppert, C.Gorges, M.Hammen, V.Hannen, S.Kaufmann, K.Konig, Y.Litvinov, M.Lochmann, B.Maass, J.Meisner, T.Murbock, R.Sanchez, M.Schmidt, S.Schmidt, M.Steck, T.Stohlker, R.C.Thompson, J.Vollbrecht, C.Weinheimer, W.Nortershauser

An improved value for the hyperfine splitting of hydrogen-like 209BI82+

ATOMIC PHYSICS 209Bi; measured time structure of the fluorescence resonance signal; deduced the rest frame transition wavelength and transition energies. Comparison with theoretical calculations.

doi: 10.1088/0953-4075/48/14/144022
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2014LO11      Phys.Rev. A 90, 030501R (2014)

M.Lochmann, R.Johren, C.Geppert, Z.Andelkovic, D.Anielski, B.Botermann, M.Bussmann, A.Dax, N.Frommgen, M.Hammen, V.Hannen, T.Kuhl, Y.A.Litvinov, R.Lopez-Coto, T.Stohlker, R.C.Thompson, J.Vollbrecht, A.Volotka, C.Weinheimer, W.Wen, E.Will, D.Winters, R.Sanchez, W.Nortershauser

Observation of the hyperfine transition in lithium-like bismuth 209Bi80+ :Towards a test of QED in strong magnetic fields

ATOMIC PHYSICS 209Bi; measured fluorescence emission wavelengths; deduced hyperfine splitting. Comparison with available data.

doi: 10.1103/PhysRevA.90.030501
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2013YO02      Phys.Rev.Lett. 110, 192501 (2013)

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

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

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

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

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

Laser spectroscopy of gallium isotopes beyond N = 50

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

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

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

Nuclear Charge Radius of 12Be

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

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

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

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

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

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

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

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

Nuclear Charge Radii of 21-32Mg

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


2009NO02      Phys.Rev.Lett. 102, 062503 (2009)

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

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

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

doi: 10.1103/PhysRevLett.102.062503
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2006HY02      Phys.Rev.Lett. 97, 102501 (2006)

B.Hyland, C.E.Svensson, G.C.Ball, J.R.Leslie, T.Achtzehn, D.Albers, C.Andreoiu, P.Bricault, R.Churchman, D.Cross, M.Dombsky, P.Finlay, P.E.Garrett, C.Geppert, G.F.Grinyer, G.Hackman, V.Hanemaayer, J.Lassen, J.P.Lavoie, D.Melconian, A.C.Morton, C.J.Pearson, M.R.Pearson, A.A.Phillips, M.A.Schumaker, M.B.Smith, I.S.Towner, J.J.Valiente-Dobon, K.Wendt, E.F.Zganjar

Precision Branching Ratio Measurement for the Superallowed β+ Emitter 62Ga and Isospin-Symmetry-Breaking Corrections in A ≥ 62 Nuclei

RADIOACTIVITY 62Ga(β+) [from Zr(p, X)]; measured Eγ, Iγ, βγ-coin; deduced superallowed Fermi branching ratio, ft. 62Zn deduced levels, J, π. Comparison with model predictions.

doi: 10.1103/PhysRevLett.97.102501
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2006ZA12      Hyperfine Interactions 171, 189 (2006)

M.Zakova, Ch.Geppert, A.Herlert, H.-J.Kluge, R.Sanchez, F.Schmidt-Kaler, D.Tiedemann, C.Zimmermann, W.Nortershauser

Towards a nuclear charge radius determination for beryllium isotopes

doi: 10.1007/s10751-006-9490-3
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2005BA87      J.Phys.(London) G31, S1491 (2005)

G.C.Ball, T.Achtzehn, D.Albers, J.S.Al-Khalili, C.Andreoiu, A.Andreyev, S.F.Ashley, R.A.E.Austin, J.A.Becker, P.Bricault, S.Chan, R.S.Chakrawarthy, R.Churchman, H.Coombes, E.S.Cunningham, J.Daoud, M.Dombsky, T.E.Drake, B.Eshpeter, P.Finlay, P.E.Garrett, C.Geppert, G.F.Grinyer, G.Hackman, V.Hanemaayer, B.Hyland, G.A.Jones, K.A.Koopmans, W.D.Kulp, J.Lassen, J.P.Lavoie, J.R.Leslie, Y.Litvinov, J.A.Macdonald, C.Mattoon, D.Melconian, A.C.Morton, C.J.Osborne, C.J.Pearson, M.Pearson, A.A.Phillips, J.J.Ressler, F.Sarazin, M.A.Schumaker, J.Schwarzenberg, H.C.Scraggs, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, J.C.Waddington, P.M.Walker, K.Wendt, S.J.Williams, J.L.Wood, E.F.Zganjar

High-resolution γ-ray spectroscopy: a versatile tool for nuclear β-decay studies at TRIUMF-ISAC

doi: 10.1088/0954-3899/31/10/019
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2005LA36      Hyperfine Interactions 162, 69 (2005)

J.Lassen, P.Bricault, M.Dombsky, J.P.Lavoie, Ch.Geppert, K.Wendt

Resonant Ionization Laser Ion Source Project at TRIUMF

doi: 10.1007/s10751-005-9212-2
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2005MO35      J.Phys.(London) G31, S1499 (2005)

I.D.Moore, A.Nieminen, J.Billowes, P.Campbell, Ch.Geppert, A.Jokinen, T.Kessler, B.Marsh, H.Penttila, S.Rinta-Antila, B.Tordoff, K.D.A.Wendt, J.Aysto

Development of a laser ion source at IGISOL

doi: 10.1088/0954-3899/31/10/020
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2005WE18      Hyperfine Interactions 162, 147 (2005)

K.D.A.Wendt, K.Blaum, C.Geppert, P.Muller, W.Nortershauser, A.Schmitt, P.Schumann, N.Trautmann, B.A.Bushaw

Laser Based Techniques for Ultra Trace Isotope Production, Spectroscopy and Detection

doi: 10.1007/s10751-005-9219-8
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2004GE19      Nucl.Phys. A746, 631c (2004)

C.Geppert, P.Bricault, R.Horn, J.Lassen, C.Rauth, K.Wendt

Resonance Ionization Laser Ion Source - Off-line tests at TRIUMF

doi: 10.1016/j.nuclphysa.2004.09.113
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2004WE14      Nucl.Phys. A746, 47c (2004)

K.Wendt, K.Blaum, K.Bruck, Ch.Geppert, H.-J.Kluge, M.Mukherjee, G.Passler, S.Schwarz, S.Sirotzki, K.Wies

A highly selective laser ion source for bunched, low emittance beam release

doi: 10.1016/j.nuclphysa.2004.09.067
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2000BL10      Eur.Phys.J. D 11, 37 (2000)

K.Blaum, B.A.Bushaw, S.Diel, Ch.Geppert, A.Kuschnick, P.Muller, W.Nortershauser, A.Schmitt, K.Wendt

Isotope Shifts and Hyperfine Structure in the [Xe]3f75d6s2 9DJ → [Xe]4f74d6s6p 9FJ+1 Transitions of Gadolinium

NUCLEAR MOMENTS 152,154,155,156,157,158Gd; measured hyperfine structure, isotope shifts. Resonance ionization mass spectrometry.

doi: 10.1007/s100530070103
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