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NSR database version of April 11, 2024.

Search: Author = K.Wendt

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2023LU15      Eur.Phys.J. A 59, 196 (2023)

P.Luchi, F.Turro, S.Quaglioni, X.Wu, V.Amitrano, K.Wendt, J.L.DuBois, F.Pederiva

Control optimization for parametric Hamiltonians by pulse reconstruction

doi: 10.1140/epja/s10050-023-01108-2
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2023WE04      Phys.Rev. C 107, 034313 (2023)

F.Weber, T.E.Albrecht-Schonzart, S.O.Allehabi, S.Berndt, M.Block, H.Dorrer, C.E.Dullmann, V.A.Dzuba, J.G.Ezold, V.V.Flambaum, V.Gadelshin, S.Goriely, A.Harvey, R.Heinke, S.Hilaire, M.Kaja, T.Kieck, N.Kneip, U.Koster, J.Lantis, C.Mokry, D.Munzberg, S.Nothhelfer, S.Oberstedt, S.Peru, S.Raeder, J.Runke, V.Sonnenschein, M.Stemmler, D.Studer, P.Thorle-Pospiech, H.Tomita, N.Trautmann, S.Van Cleve, J.Warbinek, K.Wendt

Nuclear moments and isotope shifts of the actinide isotopes 249-253Cf probed by laser spectroscopy

NUCLEAR MOMENTS 249,250,251,252,253Cf; measured hyperfine spectra; deduced energy positions of three atomic ground-state transitions, isotope shifts. 249,251,253Cf; deduced nuclear magnetic dipole moments, hyperfine parameters. 249,253Cf; deduced spectroscopic quadrupole moments. Comparison with previous experimental data. Laser resonance ionisation high-resolution spectroscopy. Comparison to theoretical estimations. RISIKO mass separator at Johannes Gutenberg University Mainz.

doi: 10.1103/PhysRevC.107.034313
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2022CI08      J.Phys.(London) G49, 120502 (2022)

V.Cirigliano, Z.Davoudi, J.Engel, R.J.Furnstahl, G.Hagen, U.Heinz, H.Hergert, M.Horoi, C.W.Johnson, A.Lovato, E.Mereghetti, W.Nazarewicz, A.Nicholson, T.Papenbrock, S.Pastore, M.Plumlee, D.R.Phillips, P.E.Shanahan, S.R.Stroberg, F.Viens, A.Walker-Loud, K.A.Wendt, S.M.Wild

Towards precise and accurate calculations of neutrinoless double-beta decay

RADIOACTIVITY 48Ca(2β-); calculated neutrinoless nuclear matrix elements using chiral-EFT interactions, EDF, IBM, QRPA, SM-pf, SM-sdpf, SM-MBPT, RSM, QMC+SM, IM-GCM, VS-IMSRG, CCSD, CCSD-T1.

doi: 10.1088/1361-6471/aca03e
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2022NO01      Phys.Rev. C 105, L021302 (2022)

S.Nothhelfer, Th.E.Albrecht-Schonzart, M.Block, P.Chhetri, Ch.E.Dullmann, J.G.Ezold, V.Gadelshin, A.Gaiser, F.Giacoppo, R.Heinke, T.Kieck, N.Kneip, M.Laatiaoui, Ch.Mokry, S.Raeder, J.Runke, F.Schneider, J.M.Sperling, D.Studer, P.Thorle-Pospiech, N.Trautmann, F.Weber, K.Wendt

Nuclear structure investigations of 253-255Es by laser spectroscopy

NUCLEAR MOMENTS 253,254,255Es; measured hyperfine spectra; deduced J, isotope shifts, hyperfine constants, nuclear spins, magnetic dipole moments, electric quadrupole moments. Comparison with previous experimental data. Laser resonance ionization spectroscopy. RISIKO mass separator at Johannes Gutenberg University Mainz.

doi: 10.1103/PhysRevC.105.L021302
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2021DA01      Phys.Rev.Lett. 126, 032502 (2021)

T.Day Goodacre, A.V.Afanasjev, A.E.Barzakh, B.A.Marsh, S.Sels, P.Ring, H.Nakada, A.N.Andreyev, P.Van Duppen, N.A.Althubiti, B.Andel, D.Atanasov, J.Billowes, K.Blaum, T.E.Cocolios, J.G.Cubiss, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, L.P.Gaffney, L.Ghys, M.Huyse, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, Y.Martinez Palenzuela, P.L.Molkanov, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, P.Spagnoletti, C.Van Beveren, M.Veinhard, E.Verstraelen, A.Welker, K.Wendt, F.Wienholtz, R.N.Wolf, A.Zadvornaya, K.Zuber

Laser Spectroscopy of Neutron-Rich 207, 208Hg Isotopes: Illuminating the Kink and Odd-Even Staggering in Charge Radii across the N = 126 Shell Closure

NUCLEAR MOMENTS 202,203,206,207,208Hg; measured frequencies; deduced hyperfine spectra, mean-square charge radii. Comparison with relativistic Hartree-Bogoliubov and nonrelativistic Hartree-Fock-Bogoliubov approaches, available data.

doi: 10.1103/PhysRevLett.126.032502
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2021DA16      Phys.Rev. C 104, 054322 (2021)

T.Day Goodacre, A.V.Afanasjev, A.E.Barzakh, L.Nies, B.A.Marsh, S.Sels, U.C.Perera, P.Ring, F.Wienholtz, A.N.Andreyev, P.Van Duppen, N.A.Althubiti, B.Andel, D.Atanasov, R.S.Augusto, J.Billowes, K.Blaum, T.E.Cocolios, J.G.Cubiss, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, L.P.Gaffney, L.Ghys, A.Gottberg, M.Huyse, S.Kreim, P.Kunz, D.Lunney, K.M.Lynch, V.Manea, Y.Martinez Palenzuela, T.M.Medonca, P.L.Molkanov, M.Mougeot, J.P.Ramos, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, P.Spagnoletti, C.Van Beveren, M.Veinhard, E.Verstraelen, A.Welker, K.Wendt, R.N.Wolf, A.Zadvornaya, K.Zuber

Charge radii, moments, and masses of mercury isotopes across the N=126 shell closure

NUCLEAR MOMENTS 198,202,203,206,207,208Hg; measured hyperfine structure spectra using Versatile Arc Discharge and Laser Ion Source (VADLIS) in CERN-ISOLDE Resonance Ionization Laser Ion Source (RILIS) mode; deduced isotope shifts (δν) and charge radii (δ<r2) with respect to 198Hg, hyperfine factors a and b, static magnetic dipole (μ) and electric quadrupole (Q) moments for the ground states of 203Hg and 207Hg, Comparison of g factors with Schmidt values for 207Hg, 209Pb, 210Bi and 211Po, and charge radii, and odd-even staggering (OES) of the mean square charge radii with relativistic Hartree-Bogoliubov (RHB) calculations using DD-ME2, DD-MEδ, DD-PC1 and NL3* covariant energy-density functionals for 197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214Pb, 201,202,203,204,205,206,207,208,209,210Hg. Source of Hg isotopes were produced in Pb(p, X), E=1.4 GeV reaction, and using VADLIS+RILIS ion source, followed by separation of fragments using ISOLDE General Purpose Separator. 183,184,185,202,203,206,207,208Hg; measured ionization and release efficiency as a function of the half-life of mercury isotopes from a molten lead target, and compared with ABRABLA, FLUKA, and GEANT4 simulations.

ATOMIC MASSES 206,207,208Hg, 208Pb; measured time-of-flight ion-cyclotron resonances, with reference to 208Pb using the RILIS+VADIS ion source and ISOLTRAP MR-ToF mass spectrometer (MS) at CERN-ISOLDE; deduced mass excesses for 206,207,208Hg, and compared with AME2020 values.

doi: 10.1103/PhysRevC.104.054322
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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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2020KR08      Phys.Rev. C 102, 024616 (2020)

K.Kravvaris, K.R.Quinlan, S.Quaglioni, K.A.Wendt, P.Navratil

Quantifying uncertainties in neutron-α scattering with chiral nucleon-nucleon and three-nucleon forces

NUCLEAR REACTIONS 4He(n, n), (n, X)5He*, E(cm)<10.5 MeV; calculated phase shifts from third to fifth order of the chiral expansion in comparison to the empirical phase shifts obtained from R-matrix analysis of A=5 reaction data, phase shifts from the Gaussian process model (GPM) with local/nonlocal 3N force, Bayesian posterior distributions of low-energy constants for the contact plus one-pion exchange using the binding energies of 3H and 4He and the charge radius of 4He, positions and widths of n-α resonances. 4,5He; calculated ground-state energy, point-proton radius and charge radius, and associated chiral uncertainties using the chiral interaction models. Computation of structure and reaction observables for three-, four-, and five-nucleon systems within the ab initio frameworks of the no-core shell model and no-core shell model with continuum. Overall uncertainty budget of many-body calculations using Bayesian statistics. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.024616
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2020KR09      Phys.Rev. C 102, 034307 (2020)

T.Kron, R.Beerwerth, S.Raeder, S.Fritzsche, R.Heinke, P.Schonberg, M.Trumper, K.Wendt

Hyperfine structure study of 97, 98, 99Tc in a new laser ion source for high-resolution laser spectroscopy

NUCLEAR MOMENTS 97,98,99Tc; measured hyperfine structure spectra of three different atomic transitions in Tc using resonance ionization spectroscopy (RIS) and efficient laser spectroscopy at the RISIKO mass separator Mainz university; deduced hyperfine structure coupling constants, μ, Q of ground states of 97Tc and 98Tc, isotope shifts, differences in charge radii based on calculated mass- and field-shift parameters using atomic MCDHF calculations. Comparison with previous experimental results. Systematics of g factors, magnetic dipole moments and electric quadrupole moments for Z=43, A=93-99 isotopes, charge radii for Z=39, N=47-63, Z=40, N=47-62, Z=41, N=49-62, Z=42, N=48-64, Z=43, N=54-56, Z=44, N=52-64, Z=46, N=56-64, and Z=47, N=54-62.

doi: 10.1103/PhysRevC.102.034307
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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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2020ST03      Eur.Phys.J. A 56, 69 (2020)

D.Studer, J.Ulrich, S.Braccini, T.S.Carzaniga, R.Dressler, K.Eberhardt, R.Heinke, U.Koster, S.Raeder, K.Wendt

High-resolution laser resonance ionization spectroscopy of 143-147Pm

doi: 10.1140/epja/s10050-020-00061-8
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2019BA22      Phys.Rev. C 99, 054317 (2019)

A.E.Barzakh, J.G.Cubiss, A.N.Andreyev, M.D.Seliverstov, B.Andel, S.Antalic, P.Ascher, D.Atanasov, D.Beck, J.Bieron, K.Blaum, Ch.Borgmann, M.Breitenfeldt, L.Capponi, T.E.Cocolios, T.Day Goodacre, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, S.Fritzsche, L.P.Gaffney, S.George, L.Ghys, F.P.Hessberger, M.Huyse, N.Imai, Z.Kalaninova, D.Kisler, U.Koster, M.Kowalska, S.Kreim, J.F.W.Lane, V.Liberati, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, S.Mitsuoka, P.L.Molkanov, Y.Nagame, D.Neidherr, K.Nishio, S.Ota, D.Pauwels, L.Popescu, D.Radulov, E.Rapisarda, J.P.Revill, M.Rosenbusch, R.E.Rossel, S.Rothe, K.Sandhu, L.Schweikhard, S.Sels, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, P.Van Duppen, Y.Wakabayashi, K.D.A.Wendt, F.Wienholtz, B.W.Whitmore, G.L.Wilson, R.N.Wolf, K.Zuber

Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in 217, 218, 219At revealed by in-source laser spectroscopy

NUCLEAR MOMENTS 217,218,219At; measured hyperfine structure spectra, isotopic shifts, and hyperfine splitting constants using in-source resonance-ionization technique at CERN-ISOLDE; deduced magnetic dipole and electric quadrupole moments, changes in nuclear mean-square charge radii, octupole collectivity. 217,218,219At isotopes produced in U(p, X), E=1.4 GeV reaction. Systematics of g factors in 209,211,213Bi, 211,217,219At, 213,219,221,223,225Fr, 215,217,227Ac, changes in rms charge radii for 207,208,209,210,211,217,218,219At, shell-effect parameters in Pb, Bi, Po, At, Rn, Fr, Ra, Ac isotopes, and odd-even staggering in 205,207,209,211Pb, 207,209,217Po, 208,210,218At, 210,212,220,222,224,226Fr, 219,221Rn, 221,223,225,227Ra.

doi: 10.1103/PhysRevC.99.054317
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2019CH46      Eur.Phys.J. A 55, 173 (2019)

K.Chrysalidis, J.Ballof, Ch.E.Dullmann, V.N.Fedosseev, C.Granados, B.A.Marsh, Y.Martinez Palenzuela, J.P.Ramos, S.Rothe, T.Stora, K.Wendt

Developments towards the delivery of selenium ion beams at ISOLDE

doi: 10.1140/epja/i2019-12873-4
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2019GY02      Nat.Phys. 15, 428 (2019)

P.Gysbers, G.Hagen, J.D.Holt, G.R.Jansen, T.D.Morris, P.Navratil, T.Papenbrock, S.Quaglioni, A.Schwenk, S.R.Stroberg, K.A.Wendt

Discrepancy between experimental and theoretical β-decay rates resolved from first principles

NUCLEAR STRUCTURE 3H, 6Li, 7Be, 8He, 10C, 14O, 19,24Ne, 37K, 25,28Al, 24,26Na, 30Mg, 33,34P, 42,43,46Sc, 42,45Ti, 45,47V, 100Sn; calculated the Gamow–Teller strength for β decay.

doi: 10.1038/s41567-019-0450-7
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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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2019SE04      Phys.Rev. C 99, 044306 (2019)

S.Sels, T.Day Goodacre, B.A.Marsh, A.Pastore, W.Ryssens, Y.Tsunoda, N.Althubiti, B.Andel, A.N.Andreyev, D.Atanasov, A.E.Barzakh, M.Bender, J.Billowes, K.Blaum, T.E.Cocolios, J.G.Cubiss, J.Dobaczewski, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, L.P.Gaffney, L.Ghys, P.-H.Heenen, M.Huyse, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, Y.Martinez Palenzuela, T.M.Medonca, P.L.Molkanov, T.Otsuka, J.P.Ramos, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, P.Spagnoletti, C.Van Beveren, P.Van Duppen, M.Veinhard, E.Verstraelen, A.Welker, K.Wendt, F.Wienholtz, R.N.Wolf, A.Zadvornaya

Shape staggering of midshell mercury isotopes from in-source laser spectroscopy compared with density-functional-theory and Monte Carlo shell-model calculations

NUCLEAR MOMENTS 177,178,179,180,181,182,183,184,185,185mHg; measured hyperfine structure (hfs) spectra, hyperfine coupling constants, isotope shifts, and rms charge radii using the in-source resonance-ionization spectroscopy method combined with decay spectroscopy, and Multi-Reflection Time-of-Flight Mass Spectrometer (MR-TOF MS) at CERN-ISOLDE facility; deduced magnetic dipole moments, and spectroscopic quadrupole moments, configurations. Comparison with theoretical calculations using density functional theory (DFT) with Skyrme parametrizations, and Monte Carlo shell model (MCSM). Ions of Hg activities produced in Pb(p, X), E=1.4 GeV, using molten lead target.

NUCLEAR REACTIONS Pb, U(p, X)177Hg/178Hg/179Hg/180Hg/181Hg/182Hg/183Hg/184Hg/185Hg/185mHg, E=1.4 GeV from PS-Booster synchrotron; measured production yields for different target-ion source configurations: VADLIS or RILIS at CERN-ISOLDE facility.

doi: 10.1103/PhysRevC.99.044306
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2019VE09      Eur.Phys.J. C 79, 1026 (2019)

C.Velte, F.Ahrens, A.Barth, K.Blaum, M.Brass, M.Door, H.Dorrer, Ch.E.Dullmann, S.Eliseev, C.Enss, P.Filianin, A.Fleischmann, L.Gastaldo, A.Goeggelmann, T.Day Goodacre, M.W.Haverkort, D.Hengstler, J.Jochum, K.Johnston, M.Keller, S.Kempf, T.Kieck, C.M.Konig, U.Koster, K.Kromer, F.Mantegazzini, B.Marsh, Yu.N.Novikov, F.Piquemal, C.Riccio, D.Richter, A.Rischka, S.Rothe, R.X.Schussler, Ch.Schweiger, T.Stora, M.Wegner, K.Wendt, M.Zampaolo, K.Zuber

High-resolution and low-background 163Ho spectrum: interpretation of the resonance tails

RADIOACTIVITY 163Ho(EC) [from 162Er(n, γ), E thermal]; measured decay products, Eβ, Iβ; deduced energy spectrum, Q-value. Comparison with available data.

doi: 10.1140/epjc/s10052-019-7513-x
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2018CU02      Phys.Rev. C 97, 054327 (2018)

J.G.Cubiss, A.E.Barzakh, M.D.Seliverstov, A.N.Andreyev, B.Andel, S.Antalic, P.Ascher, D.Atanasov, D.Beck, J.Bieron, K.Blaum, Ch.Borgmann, M.Breitenfeldt, L.Capponi, T.E.Cocolios, T.Day Goodacre, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, S.Fritzsche, L.P.Gaffney, S.George, L.Ghys, F.P.Hessberger, M.Huyse, N.Imai, Z.Kalaninova, D.Kisler, U.Koster, M.Kowalska, S.Kreim, J.F.W.Lane, V.Liberati, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, S.Mitsuoka, P.L.Molkanov, Y.Nagame, D.Neidherr, K.Nishio, S.Ota, D.Pauwels, L.Popescu, D.Radulov, E.Rapisarda, J.P.Revill, M.Rosenbusch, R.E.Rossel, S.Rothe, K.Sandhu, L.Schweikhard, S.Sels, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, Y.Wakabayashi, P.Van Duppen, K.D.A.Wendt, F.Wienholtz, B.W.Whitmore, G.L.Wilson, R.N.Wolf, K.Zuber

Charge radii and electromagnetic moments of 195-211At

NUCLEAR MOMENTS 195,195m,196,197,197m,198,198m,199,199m,200,200m,201,202,202m,203,204,205,206,207,208,209,210,211At; measured hfs spectra, hyperfine coupling constants, isotope shifts, and rms charge radii using the in-source resonance-ionization spectroscopy method, and Multi-Reflection Time-of-Flight Mass Spectrometer (MR-TOF MS) at CERN-ISOLDE; deduced magnetic dipole moments and spectroscopic quadrupole moments, configurations, and quadrupole deformation parameters. 206At; deduced J. Detailed systematics of magnetic dipole moments, spectroscopic quadrupole moments, deformations, and rms charge radii in Hg, Tl, Pb, Bi, Po, At, Fr, Ra and Ac nuclei. Comparison with theoretical calculations using multiconfiguration Dirac-Hartree-Fock (MCDHF) method.

NUCLEAR REACTIONS U(p, X)195At/195mAt/196At/197At/197mAt/198At/198mAt/199At/199mAt/200At/200m1At/200m2At/201At/202At/202mAt/203At/204At/205At/206At/207At/208At/209At/210At/211At, E=1.4 GeV; produced radioactive astatine isotopes by spallation reaction with beam from CERN PS Booster impinging on a thick UCx target, followed by injection into a hot cavity of the Resonance Ionization Laser Ion Source (RILIS), and ionization by a three-step photoionization scheme.

doi: 10.1103/PhysRevC.97.054327
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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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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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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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2017FE05      J.Phys.(London) G44, 084006 (2017)

V.Fedosseev, K.Chrysalidis, T.Day Goodacre, B.Marsh, S.Rothe, C.Seiffert, K.Wendt

Ion beam production and study of radioactive isotopes with the laser ion source at ISOLDE

doi: 10.1088/1361-6471/aa78e0
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2017FE10      Nat. Commun. 8, 14520 (2017)

R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.Martínez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya

Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced hfs spectra, magnetic dipole and electric quadrupole moments. In-gas laser ionization and spectroscopy (IGLIS) technique.

doi: 10.1038/ncomms14520
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2017GR18      Phys.Rev. C 96, 054331 (2017)

C.Granados, P.Creemers, R.Ferrer, L.P.Gaffney, W.Gins, R.de Groote, M.Huyse, Yu.Kudryavtsev, Y.Martinez, S.Raeder, S.Sels, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wrzosek-Lipska, A.Zadvornaya, A.E.Barzakh, B.Bastin, P.Delahaye, L.Hijazi, N.Lecesne, F.Luton, J.Piot, H.Savajols, J.-C.Thomas, E.Traykov, R.Beerwerth, S.Fritzsche, M.Block, X.Flechard, S.Franchoo, L.Ghys, H.Grawe, R.Heinke, T.Kron, P.Naubereit, K.Wendt, M.Laatiaoui, I.Moore, V.Sonnenschein, M.Loiselet, E.Mogilevskiy, S.Rothe

In-gas laser ionization and spectroscopy of actinium isotopes near the N=126 closed shell

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured optical hyperfine spectra by the in-gas laser ionization and spectroscopy (IGLIS) technique at the LISOL facility of Cyclotron Research Centre, Louvain-la-Neuve; deduced g factors, quadrupole moments and spins of the ground states, configurations. Comparison with large-scale nuclear-shell-model calculations. 212,213Ac produced in 197Au(20Ne, 5n), (20Ne, 4n), E=145 MeV. 214,215Ac produced in 197Au(22Ne, 5n), (22Ne, 4n), E=143 MeV.

RADIOACTIVITY 215Ac(α)[from 197Au(22Ne, 4n), E=143 MeV; measured Eα.

doi: 10.1103/PhysRevC.96.054331
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2017RO21      J.Phys.(London) G44, 104003 (2017)

S.Rothe, J.Sundberg, J.Welander, K.Chrysalidis, T.D.Goodacre, V.Fedosseev, S.Fiotakis, O.Forstner, R.Heinke, K.Johnston, T.Kron, U.Koster, Y.Liu, B.Marsh, A.Ringvall-Moberg, R.E.Rossel, C.Seiffert, D.Studer, K.Wendt, D.Hanstorp

Laser photodetachment of radioactive 128I1

NUCLEAR REACTIONS 128I(γ, X), E<3.1 eV; measured reaction products; deduced the electron affinity (EA) of a radioactive isotope.

doi: 10.1088/1361-6471/aa80aa
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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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2016BI07      Phys.Rev. C 93, 044332 (2016)

S.Binder, A.Ekstrom, G.Hagen, T.Papenbrock, K.A.Wendt

Effective field theory in the harmonic oscillator basis

NUCLEAR STRUCTURE 2,3H, 3,4He; calculated binding energies and radii from different effective interactions. 4He, 16O, 40Ca, 90Zr, 132Sn; calculated ground-state energies and squared point proton radii. Coupled-cluster calculations at the singles and doubles level using chiral effective field theory (EFT) in harmonic oscillator basis. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.044332
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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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2016FE11      Nat. Commun. 8, 14520 (2016), See 2017FE10

R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.Martinez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya

Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced nuclear magnetic moments, electric quadrupole moments, radii. Comparison with theoretical calculations, experimental data.

doi: 10.1038/ncomms14520
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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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2016HA27      Nat.Phys. 12, 186 (2016)

G.Hagen, A.Ekstrom, C.Forssen, G.R.Jansen, W.Nazarewicz, T.Papenbrock, K.A.Wendt, S.Bacca, N.Barnea, B.Carlsson, C.Drischler, K.Hebeler, M.Hjorth-Jensen, M.Miorelli, G.Orlandini, A.Schwenk, J.Simonis

Neutron and weak-charge distributions of the 48Ca nucleus

NUCLEAR STRUCTURE 48Ca; calculated neutron skin parameters, radii. Ab initio calculations.

doi: 10.1038/nphys3529
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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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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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2015EK01      Phys.Rev. C 91, 051301 (2015)

A.Ekstrom, G.R.Jansen, K.A.Wendt, G.Hagen, T.Papenbrock, B.D.Carlsson, C.Forssen, M.Hjorth-Jensen, P.Navratil, W.Nazarewicz

Accurate nuclear radii and binding energies from a chiral interaction

NUCLEAR STRUCTURE 2H, 4,8He, 6,9Li, 14C, 16O, 40Ca; calculated ground-state energies, charge radii, quadrupole moment for deuteron. 6Li, 14C, 16O, 22,24F, 22,24O, 40Ca; calculated levels, J, π, charge density in 16O, scattering lengths, and effective ranges in low-energy proton-proton scattering, scattering phase shifts in low-energy neutron-proton scattering, half-life for the β- decay of 3H; deduced consistently optimized interaction from chiral EFT at NNLO for nuclei and infinite nuclear matter. Coupled-cluster calculations based on chiral effective field theory interaction (NNLOsat). Comparison with experimental data.

doi: 10.1103/PhysRevC.91.051301
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2015FI07      Phys.Rev.X 5, 011018 (2015)

D.A.Fink, T.E.Cocolios, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, L.Ghys, A.Gottberg, M.Huyse, N.Imai, T.Kron, N.Lecesne, K.M.Lynch, B.A.Marsh, D.Pauwels, E.Rapisarda, S.D.Richter, R.E.Rossel, S.Rothe, M.D.Seliverstov, A.M.Sjodin, C.Van Beveren, P.Van Duppen, K.D.A.Wendt

In-Source Laser Spectroscopy with the Laser Ion Source and Trap: First Direct Study of the Ground-State Properties of 217, 219Po

NUCLEAR MOMENTS 216,217,218Po [from 238U(p, X), E=1.4 GeV]; measured resonance spectra, Eα, Iα; deduced g-factors, mean-square charge radii, electromagnetic nuclear moments. In-source laser spectroscopy.

RADIOACTIVITY 219Po(α) [from 238U(p, X), E=1.4 GeV]; measured decay spectra, Eα, Iα; deduced α-decay spectra, branching ratios, T1/2, hindrance factors. Comparison with available data.

doi: 10.1103/PhysRevX.5.011018
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2015SC13      Eur.Phys.J. A 51, 89 (2015)

F.Schneider, T.Beyer, K.Blaum, M.Block, S.Chenmarev, H.Dorrer, Ch.E.Dullmann, K.Eberhardt, M.Eibach, S.Eliseev, J.Grund, U.Koster, Sz.Nagy, Yu.N.Novikov, D.Renisch, A.Turler, K.Wendt

Preparatory studies for a high-precision Penning-trap measurement of the 163Ho electron capture Q-value

doi: 10.1140/epja/i2015-15089-8
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2015WE05      Phys.Rev. C 91, 061301 (2015)

K.A.Wendt, C.Forssen, T.Papenbrock, D.Saaf

Infrared length scale and extrapolations for the no-core shell model

NUCLEAR STRUCTURE 4,6He, 6,7Li, 10B, 16O; calculated infrared (IR) length scale, Ground-state energy as a function of the IR scale, binding energy per particle. Large-scale no-core shell model (NCSM) with Dirichlet boundary condition. Comparison with Benchmark results from coupled-cluster calculations for 16O.

doi: 10.1103/PhysRevC.91.061301
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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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2014EI01      Phys.Rev. C 89, 064318 (2014)

M.Eibach, T.Beyer, K.Blaum, M.Block, Ch.E.Dullmann, K.Eberhardt, J.Grund, Sz.Nagy, H.Nitsche, W.Nortershauser, D.Renisch, K.P.Rykaczewski, F.Schneider, C.Smorra, J.Vieten, M.Wang, K.Wendt

Direct high-precision mass measurements on 241, 243Am, 244Pu, and 249Cf

ATOMIC MASSES 241,243Am, 244Pu, 249Cf; measured Time-of-flight spectrum of carbon cluster ions, cyclotron frequencies by TOF-ICR technique using TRIGA-TRAP Penning-trap mass spectrometer at Mainz; deduced masses. Comparison with data in AME-2012. Analyzed AME-2012 masses of 84 nuclides in Z=82-112, N=129-166 region, and improved uncertainties with the use of new mass measurements in this work.

doi: 10.1103/PhysRevC.89.064318
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2014EK01      Phys.Rev.Lett. 113, 262504 (2014)

A.Ekstrom, G.R.Jansen, K.A.Wendt, G.Hagen, T.Papenbrock, S.Bacca, B.Carlsson, D.Gazit

Effects of Three-Nucleon Forces and Two-Body Currents on Gamow-Teller Strengths

RADIOACTIVITY 14C, 22,24O(β-); calculated quenching factor; deduced a novel coupled-cluster technique for the computation of spectra in the daughter nuclei and made several predictions and spin assignments in the exotic neutron-rich isotopes of fluorine.

NUCLEAR STRUCTURE 14N, 22,24F; calculated energy levels, J, π.

doi: 10.1103/PhysRevLett.113.262504
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2014HA01      Phys.Rev. C 89, 014319 (2014)

G.Hagen, T.Papenbrock, A.Ekstrom, K.A.Wendt, G.Baardsen, S.Gandolfi, M.Hjorth-Jensen, C.J.Horowitz

Coupled-cluster calculations of nucleonic matter

NUCLEAR STRUCTURE A=10-1000; N=66, 132; calculated relative finite-size corrections for the kinetic energy in pure neutron matter, E/A of nuclear and neutron matter. Coupled-cluster computations of equation of state (EoS) for symmetric nuclear matter and neutron matter using optimized nucleon-nucleon (NN) potential NNLOopt at next-to-next-to leading order. Comparison with benchmark calculations.

doi: 10.1103/PhysRevC.89.014319
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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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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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2013WE06      Phys.Rev. C 87, 061001 (2013)

K.A.Wendt

Similarity renormalization group evolution of three-nucleon forces in a hyperspherical momentum representation

doi: 10.1103/PhysRevC.87.061001
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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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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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2012SO07      Eur.Phys.J. A 48, 52 (2012)

V.Sonnenschein, I.D.Moore, S.Raeder, A.Hakimi, A.Popov, K.Wendt

The search for the existence of 229mTh at IGISOL

ATOMIC PHYSICS 228,229,230Th; measured isotope shift relative to 232Th on atomic 380.42 nm transition using Resonance Ionization Spectroscopy; deduced template of ground state hyperfine structure for 262.24 nm 229Th UV transition.

doi: 10.1140/epja/i2012-12052-3
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2012WE06      Phys.Rev. C 86, 014003 (2012)

K.A.Wendt, R.J.Furnstahl, S.Ramanan

Local projections of low-momentum potentials

doi: 10.1103/PhysRevC.86.014003
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2011WE03      Phys.Rev. C 83, 034005 (2011)

K.A.Wendt, R.J.Furnstahl, R.J.Perry

Decoupling of spurious deeply bound states with the similarity renormalization group

doi: 10.1103/PhysRevC.83.034005
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2007ZG01      Acta Phys.Pol. B38, 1179 (2007)

E.F.Zganjar, T.Achtzehn, D.Albers, C.Andreoiu, A.N.Andreyev, R.A.E.Austin, G.C.Ball, J.A.Behr, G.C.Biosvert, P.Bricault, S.Bishop, R.S.Chakrawarthy, R.Churchman, D.Cross, E.Cunningham, J.M.D'Auria, M.Dombsky, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, V.Hanemaayer, J.C.Hardy, D.F.Hodgson, B.Hyland, V.Iacob, P.Klages, K.A.Koopmans, W.D.Kulp, J.Lassen, J.P.Lavoie, J.R.Leslie, T.Linder, J.A.Macdonald, H.-B.Mak, D.Melconian, A.C.Morton, W.E.Ormand, C.J.Osborne, C.J.Pearson, M.R.Pearson, A.A.Phillips, A.Piechaczek, J.Ressler, F.Sarazin, G.Savard, M.A.Schumaker, H.C.Scraggs, C.E.Svensson, J.J.Valiente-Dobon, I.S.Towner, J.C.Waddington, P.M.Walker, K.Wendt, J.L.Wood

Superallowed Beta Decay Studies at TRIUMF - Nuclear Structure and Fundamental Symmetries


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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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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2003FE01      Nucl.Instrum.Methods Phys.Res. B204, 353 (2003)

V.N.Fedoseyev, D.V.Fedorov, R.Horn, G.Huber, U.Koster, J.Lassen, V.I.Mishin, M.D.Seliverstov, L.Weissman, K.Wendt, and the ISOLDE Collaboration

Atomic spectroscopy studies of short-lived isotopes and nuclear isomer separation with the ISOLDE RILIS

doi: 10.1016/S0168-583X(02)01959-6
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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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2000MU17      Eur.Phys.J. D 12, 33 (2000)

P.Muller, B.A.Bushaw, W.Nortershauser, K.Wendt

Isotope Shifts and Hyperfine Structure in Calcium 4snp 1P1 and 4snf F Rydberg States

NUCLEAR MOMENTS 40,41,42,43,44,46,48Ca; measured hfs, isotope shifts. Rydberg states, high-resolution laser spectroscopy.

doi: 10.1007/s100530070040
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1998NO10      Eur.Phys.J. D 2, 33 (1998)

W.Nortershauser, K.Blaum, K.Icker, P.Muller, A.Schmitt, K.Wendt, B.Wiche

Isotope Shifts and Hyperfine Structure in the 3d 2DJ → 4p 2PJ Transitions in Calcium II

NUCLEAR MOMENTS 43Ca; measured hfs; deduced hyperfine constants. 42,43,44,48Ca measured isotope shifts. Fast ion beam collinear laser spectroscopy.


1994PA37      Nucl.Phys. A580, 173 (1994)

G.Passler, J.Rikovska, E.Arnold, H.-J.Kluge, L.Monz, R.Neugart, H.Ravn, K.Wendt, and the ISOLDE Collaboration

Quadrupole Moments and Nuclear Shapes of Neutron-Deficient Gold Isotopes

RADIOACTIVITY 193,191Au(EC); 192,194Au(EC), (β+); measured istope shifts, hfs; deduced quadrupole moment, deformation parameter β2, hyperfine constants. Particle-triaxial-rotor model applied to 183-197Au.

doi: 10.1016/0375-9474(94)90769-2
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1993BU24      Z.Phys. D28, 275 (1993)

B.A.Bushaw, H.-J.Kluge, J.Lantzsch, R.Schwalbach, J.Stenner, H.Stevens, K.Wendt, K.Zimmer

Hyperfine Structure in 5s4d3D - 5snf Transitions of 87Sr

NUCLEAR MOMENTS 87Sr; measured hfs; deduced hyperfine constants. Collinear fast beam laser spectroscopy.

doi: 10.1007/BF01437259
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1992LI11      Phys.Rev. C46, 797 (1992)

P.Lievens, L.Vermeeren, R.E.Silverans, E.Arnold, R.Neugart, K.Wendt, F.Buchinger

Spin, Moments, and Mean Square Nuclear Charge Radius of 77Sr

NUCLEAR MOMENTS 77Sr; measured hfs, isotope shift; deduced ground state J, μ, electric quadrupole moment, mean square charge radius, deformation. Nilsson configuration. Fast ion beam collinear laser spectroscopy.

doi: 10.1103/PhysRevC.46.797
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1991KE07      Z.Phys. D18, 117 (1991)

M.Keim, G.Haub, E.W.Otten, M.Scherf, K.Wendt

Hyperfine Structure Studies in the 6s6p 3P2-Level of Barium

NUCLEAR MOMENTS 137Ba; measured hfs; deduced hyperfine parameters. Collinear fast beam laser spectroscopy.

doi: 10.1007/BF01418177
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1991LI05      Phys.Lett. 256B, 141 (1991)

P.Lievens, R.E.Silverans, L.Vermeeren, W.Borchers, W.Neu, R.Neugart, K.Wendt, F.Buchinger, E.Arnold, and the ISOLDE Collaboration

Nuclear Ground State Properties of 99Sr by Collinear Laser Spectroscopy with Non-Optical Detection

RADIOACTIVITY 99Sr; measured hfs, isotope shift; deduced hyperfine parameters, μ, spectroscopic quadrupole moment. Model calculations.

NUCLEAR STRUCTURE 99Sr; calculated levels, μ, spectroscopic quadrupole moment. Particle-rotor, Nilsson models.

doi: 10.1016/0370-2693(91)90664-C
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1991SC33      J.Phys.(London) B24, 4831 (1991)

Ch.Schulz, E.Arnold, W.Borchers, W.Neu, R.Neugart, M.Neuroth, E.W.Otten, M.Scherf, K.Wendt, P.Lievens, Yu.A.Kudryavtsev, V.S.Letokhov, V.I.Mishin, V.V.Petrunin, and the ISOLDE Collaboration

Resonance Ionization Spectroscopy on a Fast Atomic Ytterbium Beam

RADIOACTIVITY 157,159,175Yb; measured hfs, isotope shifts. Fast atomic Yb beam, resonance ionization spectroscopy.

doi: 10.1088/0953-4075/24/22/020
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1990AR25      J.Phys.(London) B23, 3511 (1990)

E.Arnold, W.Borchers, H.T.Duong, P.Juncar, J.Lerme, P.Lievens, W.Neu, R.Neugart, M.Pellarin, J.Pinard, J.L.Vialle, K.Wendt, and the ISOLDE Collaboration

Optical Laser Spectroscopy and Hyperfine Structure Investigation of the 102S, 112S, 82D and 92D Excited Levels in Francium

RADIOACTIVITY 212Fr; measured hfs; deduced hyperfine constants. Optical laser spectroscopy.

doi: 10.1088/0953-4075/23/20/014
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1990BU12      Phys.Rev. C41, 2883 (1990); Erratum Phys.Rev. C42, 2754 (1990)

F.Buchinger, E.B.Ramsay, E.Arnold, W.Neu, R.Neugart, K.Wendt, R.E.Silverans, P.Lievens, L.Vermeeren, D.Berdichevsky, R.Fleming, D.W.L.Sprung, G.Ulm

Systematics of Nuclear Ground State Properties in 78-100Sr by Laser Spectroscopy

NUCLEAR MOMENTS 84,86,88Sr; measured optical isotope shifts. 87Sr; measured optical isotope shifts, hfs; deduced central charge, rms radii. Other isotopes studied.

RADIOACTIVITY 78,80,82,90,92,94,96,98,100Sr; measured optical isotope shifts. 79,81,83,85,87,89,91,93,95,97Sr; measured hfs, optical isotope shifts; deduced ground state spins, μ, quadrupole moments, rms charge radii. Other isotopes studied.

doi: 10.1103/PhysRevC.41.2883
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1990LI28      Hyperfine Interactions 59, 161 (1990)

P.Lievens, R.E.Silverans, L.Vermeeren, E.Arnold, W.Borchers, W.Neu, R.Neugart, K.Wendt, F.Buchinger, E.B.Ramsay, G.Ulm

Nuclear Moments of Strongly Deformed Strontium Isotopes

RADIOACTIVITY 99,79,81,83,83m,85,85m,87,87m,89,91,91,93,95,97Sr; measured hfs; deduced hyperfine constant. 99,79,81,83,85,87,89,91,93,95,97Sr levels deduced μ, quadrupole moment. Fast ion-beam collinear laser spectroscopy.

doi: 10.1007/BF02401214
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1990NE11      Hyperfine Interactions 59, 145 (1990)

R.Neugart, E.W.Otten, K.Wendt, S.Ahmad, S.N.Panigrahy, R.W.Dougherty, K.C.Mishra, T.P.Das, J.Andriessen

Evaluation of the Magnetic Moments of Radium Isotopes

NUCLEAR STRUCTURE 213Ra; calculated μ. Relativistic linked cluster many body perturbation procedure.

doi: 10.1007/BF02401210
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1989BO03      Phys.Lett. 216B, 7 (1989)

W.Borchers, E.Arnold, W.Neu, R.Neugart, K.Wendt, G.Ulm, and the ISOLDE Collaboration

Xenon Isotopes Far from Stability Studied by Collisional Ionization Laser Spectroscopy

RADIOACTIVITY 116,117,118,120,122,137,138,139,140,141,142,143,144,146Xe; measured hfs, isotope shifts; deduced rms charge radii relative to 136Xe. 137,139,141,143Xe level deduced J, μ, electric quadrupole moment. Collisional ionization laser spectroscopy.

NUCLEAR MOMENTS 124,126,128,130,131,132,134Xe; measured hfs, isotope shifts; deduced rms charge radii relative to 136Xe. Collisional ionization laser spectroscopy.

doi: 10.1016/0370-2693(89)91359-2
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1989NE03      Z.Phys. D11, 105 (1989)

W.Neu, R.Neugart, E.-W.Otten, G.Passler, K.Wendt, B.Fricke, E.Arnold, H.J.Kluge, G.Ulm, and the ISOLDE Collaboration

Quadrupole Moments of Radium Isotopes from the 7p2 P3/2 Hyperfine Structure in Ra II

RADIOACTIVITY 221,223,224,225,226,212,214Ra; measured hfs, isotope shift. 209,211,221,223,227,229Ra deduced spectroscopic quadrupole moments. Other data analyzed. Collinear fast beam laser spectroscopy.

doi: 10.1007/BF01444425
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1988AH02      Nucl.Phys. A483, 244 (1988)

S.A.Ahmad, W.Klempt, R.Neugart, E.W.Otten, P.-G.Reinhard, G.Ulm, K.Wendt, and the ISOLDE Collaboration

Mean Square Charge Radii of Radium Isotopes and Octupole Deformation in the 220-228Ra Region

RADIOACTIVITY 208,209,210,211,212,213,214,220,221,222,223,224,225,226,227,228,229,230,232Ra; measured isotope shifts, hfs; deduced mean square charge radii, spins, magnetic dipole moments, electric quadrupole moments, deformation β, odd-even staggering. Collinear fast-beam laser spectroscopy.

doi: 10.1016/0375-9474(88)90534-9
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1988KI03      Phys.Rev.Lett. 60, 2133 (1988)

M.Kitano, F.P.Calaprice, M.L.Pitt, J.Clayhold, W.Happer, M.Kadar-Kallen, M.Musolf, G.Ulm, K.Wendt, T.Chupp, J.Bonn, R.Neugart, E.Otten, H.T.Duong

Nuclear Orientation of Radon Isotopes by Spin-Exchange Optical Pumping

RADIOACTIVITY 209Rn(EC); 223Rn(β-) [from Th(p, X), E=600 MeV]; measured NMR, γ(θ), oriented nuclei, Eγ, Iγ. 209Rn level deduced μ.

doi: 10.1103/PhysRevLett.60.2133
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1988SI06      Phys.Rev.Lett. 60, 2607 (1988)

R.E.Silverans, P.Lievens, L.Vermeeren, E.Arnold, W.Neu, R.Neugart, K.Wendt, F.Buchinger, E.B.Ramsay, G.Ulm

Nuclear Charge Radii of 78-100Sr by Nonoptical Detection in Fast-Beam Laser Spectroscopy

NUCLEAR MOMENTS 84,86,87,88Sr; measured optical isotope shifts. 84,86,87Sr deduced rms charge radii relative to 88Sr.

RADIOACTIVITY 78,80,82,90,92,94,96,98,100Sr; measured optical isotope shifts. 80,82,90Sr deduced rms charge radii relative to 88Sr.

doi: 10.1103/PhysRevLett.60.2607
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1988WE07      Z.Phys. A329, 407 (1988)

K.Wendt, S.A.Ahmad, C.Ekstrom, W.Klempt, R.Neugart, E.W.Otten

Hyperfine Structure and Isotope Shift of the Neutron-Rich Barium Isotopes 139-146Ba and 148Ba

NUCLEAR MOMENTS 134,135,136,137,138Ba; measured isotope shift, hfs; deduced hyperfine parameters. 134,135,136,137Ba level deduced μ, electric quadrupole moment, rms charge radius.

RADIOACTIVITY 139,140,141,142,143,144,145,146,148Ba; measured isotope shift, hfs; deduced hyperfine parameters. 139,140,141,142,143,144,145Ba level deduced μ, electric quadrupole moment, rms charge radius. 146Ba deduced rms charge radius.


1987AR20      Phys.Rev.Lett. 59, 771 (1987)

E.Arnold, W.Borchers, M.Carre, H.T.Duong, P.Juncar, J.Lerme, S.Liberman, W.Neu, R.Neugart, E.W.Otten, M.Pellarin, J.Pinard, G.Ulm, J.L.Vialle, K.Wendt, and the ISOLDE Collaboration

Direct Measurement of Nuclear Magnetic Moments of Radium Isotopes

RADIOACTIVITY 213Ra(α), (EC), (β+); 225Ra(β-); measured hfs. 213,225Ra deduced μ. Fast beam laser spectroscopy.

doi: 10.1103/PhysRevLett.59.771
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1987AR22      Phys.Lett. 197B, 311 (1987)

E.Arnold, J.Bonn, R.Gegenwarth, W.Neu, R.Neugart, E.-W.Otten, G.Ulm, K.Wendt, and the ISOLDE Collaboration

Nuclear Spin and Magnetic Moment of 11Li

RADIOACTIVITY 9,8,11Li(β-) [from Ta(p, X), E=600 MeV]; measured β-asymmetry, NMR, hfs. 9,8Li deduced μ. 11Li deduced level J, μ. Fast atomic beam, optical pumping.

doi: 10.1016/0370-2693(87)90390-X
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1987BO29      Hyperfine Interactions 34, 25 (1987)

W.Borchers, R.Neugart, E.W.Otten, H.T.Duong, G.Ulm, K.Wendt, and the ISOLDE Collaboration

Hyperfine Structure and Isotope Shift Investigations in 202-222Rn for the Study of Nuclear Structure beyond Z = 82

RADIOACTIVITY 203m,205,207,209,211,219,221Rn; measured hfs, isotope shift; deduced spins, moments, hyperfine interaction constants.

doi: 10.1007/BF02072676
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1987BU11      Z.Phys. A327, 361 (1987)

F.Buchinger, E.B.Ramsay, R.E.Silverans, P.Lievens, E.Arnold, W.Neu, R.Neugart, K.Wendt, G.Ulm, and the ISOLDE Collaboration

Nuclear Ground State Spins of Short-Lived Strontium Isotopes

NUCLEAR MOMENTS 87Sr; measured hfs. 87Sr deduced ground state J, magnetic dipole factor ratio. Collinear fast beam laser spectroscopy.

RADIOACTIVITY 79,81,83,85,89,91,93,95,97Sr; measured hfs. 79,81,83,85,89,91,93,95,97Sr deduced state J, magnetic dipole factor ratios. Collinear fast beam laser spectroscopy.


1987DU13      Europhys.Lett. 3, 175 (1987)

H.T.Duong, P.Juncar, S.Liberman, A.C.Mueller, R.Neugart, E.W.Otten, B.Peuse, J.Pinard, H.H.Stroke, C.Thibault, F.Touchard, J.L.Vialle, K.Wendt, and the ISOLDE Collaboration

First Observation of the Blue Optical Lines of Francium

NUCLEAR MOMENTS 212,213,220,221Fr; measured hfs, isotope shifts.

doi: 10.1209/0295-5075/3/2/008
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1987EB02      Nucl.Phys. A464, 9 (1987)

J.Eberz, U.Dinger, G.Huber, H.Lochmann, R.Menges, R.Neugart, R.Kirchner, O.Klepper, T.Kuhl, D.Marx, G.Ulm, K.Wendt, and the ISOLDE Collaboration

Spins, Moments and Mean Square Charge Radii of 104-127In Determined by Laser Spectroscopy

RADIOACTIVITY 104,105,106,107,108,109,110,111,112,116,117,118,119,120,121,122,123,124,125,126,127In; measured hfs, isotope shifts; deduced hyperfine constants, μ, electric quadrupole moments, J, rms charge radii, deformation β. Collinear fast beam laser spectroscopy.

NUCLEAR MOMENTS 113,115In; measured hfs, isotope shifts; deduced hyperfine constants, spins, magnetic dipole moments, electric quadrupole moments, rms charge radii, deformation β. Collinear fast-beam laser spectroscopy.

doi: 10.1016/0375-9474(87)90419-2
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1987WE03      Z.Phys. D4, 227 (1987)

K.Wendt, S.A.Ahmad, W.Klempt, R.Neugart, E.W.Otten, H.H.Stroke, and the ISOLDE Collaboration

On the Hyperfine Structure and Isotope Shift of Radium

NUCLEAR MOMENTS 208,209,210,211,212,213,214,220,221,222,223,224,225,226,227,228,229,230,232Ra; measured hfs, isotope shifts; deduced hyperfine constants. 209,211,213,221,223,225,227,229Ra deduced J, μ, quadrupole moment. Laser spectroscopy. Berit-Wills theory.

doi: 10.1007/BF01436633
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1986UL02      Z.Phys. A325, 247 (1986)

G.Ulm, S.K.Bhattacherjee, P.Dabkiewicz, G.Huber, H.-J.Kluge, T.Kuhl, H.Lochmann, E.-W.Otten, K.Wendt, S.A.Ahmad, W.Klempt, R.Neugart, and the ISOLDE Collaboration

Isotope Shift of 182Hg and an Update of Nuclear Moments and Charge Radii in the Isotope Range 181Hg - 206Hg

COMPILATION 185,185m,187,189,191Hg; compiled hyperfine interaction constants, μ. 181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199Hg; compiled hfs, isotope shifts.185m,187,187m,189,189m,191,191m,193,193m,195m,197m,199m,201,203Hg; compiled, evaluated rms radii, spectroscopic quadrupole moments.

RADIOACTIVITY 182,184,186,188,190,192,194Hg; measured isotopes shifts; deduced rms radii. Collinear fast beam laser spectroscopy.

NUCLEAR MOMENTS 196,198Hg; measured isotopes shifts; deduced rms radii. Collinear fast beam laser spectroscopy.


1985AH02      Z.Phys. A321, 35 (1985)

S.A.Ahmad, W.Klempt, C.Ekstrom, R.Neugart, K.Wendt, and the ISOLDE Collaboration

Nuclear Spins, Moments, and Changes of the Mean Square Charge Radii of 140-153Eu

RADIOACTIVITY 140,141,142,142m,143,144,145,146,147,148,149,150,150m,152Eu; measured optical hfs, isotope shifts. 140,141,142,142m,144,150Eu deduced level J, μ, quadrupole moment, rms charge radii differences. 143,145,146,147,148,149,150m,152,153Eu deduced μ, quadrupole moment, rms charge radii differences. Collinear fast beam laser spectroscopy.

NUCLEAR MOMENTS 151,153Eu; measured optical hfs, isotope shifts. 151,153Eu deduced μ, quadrupole moment, rms charge radii differences. Collinear fast beam laser spectroscopy.

doi: 10.1007/BF01411941
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1985NE06      Phys.Rev.Lett. 55, 1559 (1985)

R.Neugart, H.H.Stroke, S.A.Ahmad, H.T.Duong, H.L.Ravn, K.Wendt

Nuclear Magnetic Moment of 207Tl

RADIOACTIVITY 207Tl(β-) [from 219Fr decay chain]; measured hfs; deduced μ. 207,205,203Tl deduced isotope shifts. Other data input, collinear fast beam laser spectroscopy.

NUCLEAR MOMENTS 203,205Tl; measured hfs. 203,205,207Tl deduced isotope shifts. Other data input, collinear fast beam laser spectroscopy.

doi: 10.1103/PhysRevLett.55.1559
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1984WE15      Z.Phys. A318, 125 (1984)

K.Wendt, S.A.Ahmad, F.Buchinger, A.C.Mueller, R.Neugart, E.-W.Otten

Relativistic J-Dependence of the Isotope Shift in the 6s-6p Doublet of Ba II

NUCLEAR MOMENTS 130,132,134,135,136,137,138Ba; measured optical hfs; deduced hfs parameters. 130,132,134,135,136,137Ba deduced isotope shift relative to 138Ba. Collinear laser-ion beam technique.

doi: 10.1007/BF01413460
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1983AH03      Phys.Lett. 133B, 47 (1983)

S.A.Ahmad, W.Klempt, R.Neugart, E.W.Otten, K.Wendt, C.Ekstrom, and the ISOLDE Collaboration

Determination of Nuclear Spins and Moments in a Series of Radium Isotopes

NUCLEAR MOMENTS 211,213,221,223,225,227,229Ra; measured hfs; deduced μ, J, electric quadrupole moments. 211,212,208,210,220,221,222,223,224,226,225,227,228,229,230,232Ra; measured optical isotope shifts. On-line collinear fast beam laser spectroscopy.

doi: 10.1016/0370-2693(83)90103-X
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1983NE13      Hyperfine Interactions 15/16, 181 (1983)

R.Neugart, K.Wendt, S.A.Ahmad, W.Klempt, C.Ekstrom, and the ISOLDE Collaboration

Nuclear Moments and Charge Radii of Rare-Earth Isotopes Studied by Collinear Fast-Beam Laser Spectroscopy

RADIOACTIVITY 159Yb; 161,163,165,167Yb(β+), (EC); 169Yb(EC); 169mYb(IT); measured hfs; deduced hyperfine constants. 159,161,163,165,167,169mYb level deduced μ, static quadrupole moment.

doi: 10.1007/BF02159736
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1982BU21      Nucl.Instrum.Methods 202, 159 (1982)

F.Buchinger, A.C.Mueller, B.Schinzler, K.Wendt, C.Ekstrom, W.Klempt, R.Neugart, the ISOLDE Collaboration

Fast-Beam Laser Spectroscopy on Metastable Atoms Applied to Neutron-Deficient Ytterbium Isotopes

NUCLEAR MOMENTS 156,158,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,176Yb; measured optical hfs, isotope shifts. 161,163,165,167,169,171,173Yb deduced magnetic dipole, electric quadrupole coupling constants. Radioisotopes from spallation reaction, Ta target, proton beam, fast beam laser spectroscopy.

NUCLEAR REACTIONS 181Ta(p, X), E=600 MeV; measured production yield for 156,158,160,161,162,163,164,165,166,167,169Yb.

doi: 10.1016/0167-5087(82)90390-8
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Note: The following list of authors and aliases matches the search parameter K.Wendt: , K.A.WENDT, K.D.WENDT