NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = R.F.Garcia Ruiz Found 54 matches. 2024DE01 Phys.Lett. B 848, 138352 (2024) R.P.de Groote, D.A.Nesterenko, A.Kankainen, M.L.Bissell, O.Beliuskina, J.Bonnard, P.Campbell, L.Canete, B.Cheal, C.Delafosse, A.de Roubin, C.S.Devlin, J.Dobaczewski, T.Eronen, R.F.Garcia Ruiz, S.Geldhof, W.Gins, M.Hukkanen, P.Imgram, R.Mathieson, A.Koszorus, I.D.Moore, I.Pohjalainen, M.Reponen, B.van den Borne, M.Vilen, S.Zadvornaya Measurements of binding energies and electromagnetic moments of silver isotopes – A complementary benchmark of density functional theory NUCLEAR MOMENTS 113,113m,115,115m,117,117m,119,119m,121,121m,123,123mAg; measured frequencies. 107,109Ag, 133Cs; deduced nuclear binding and excitation energies, J, magnetic dipole and electric quadrupole moments, the crucial role of the spin-orbit strength and time-odd mean fields play in the simultaneous description of electromagnetic moments and nuclear binding. Comparison with calculations performed with density functional theory (DFT). The JYFLTRAP mass spectrometer and the collinear laser spectroscopy beamline at the Ion Guide Isotope Separator On-Line (IGISOL) facility.
doi: 10.1016/j.physletb.2023.138352
2023LE15 Phys.Lett. B 847, 138278 (2023) S.Lechner, T.Miyagi, Z.Y.Xu, M.L.Bissell, K.Blaum, B.Cheal, C.S.Devlin, R.F.Garcia Ruiz, J.S.M.Ginges, H.Heylen, J.D.Holt, P.Imgram, A.Kanellakopoulos, A.Koszorus, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, P.Plattner, L.V.Rodriguez, G.Sanamyan, S.R.Stroberg, Y.Utsuno, X.F.Yang, D.T.Yordanov Electromagnetic moments of the antimony isotopes 112-133Sb NUCLEAR MOMENTS 113,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133Sb; measured frequencies; deduced hyperfine spectra parameters, hyperfine anomaly, nuclear magnetic dipole and electric quadrupole moments. Comparison with shell model and ab initio calculations. Radioactive antimony (Sb) isotopes were produced at the radioactive ion beam facility ISOLDE-CERN.
doi: 10.1016/j.physletb.2023.138278
2023PL01 Phys.Rev.Lett. 131, 222502 (2023) P.Plattner, E.Wood, L.Al Ayoubi, O.Beliuskina, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, R.P.de Groote, C.S.Devlin, T.Eronen, L.Filippin, R.F.Garcia Ruiz, Z.Ge, S.Geldhof, W.Gins, M.Godefroid, H.Heylen, M.Hukkanen, P.Imgram, A.Jaries, A.Jokinen, A.Kanellakopoulos, A.Kankainen, S.Kaufmann, K.Konig, A.Koszorus, S.Kujanpaa, S.Lechner, S.Malbrunot-Ettenauer, P.Muller, R.Mathieson, I.Moore, W.Nortershauser, D.Nesterenko, R.Neugart, G.Neyens, A.Ortiz-Cortes, H.Penttila, I.Pohjalainen, A.Raggio, M.Reponen, S.Rinta-Antila, L.V.Rodriguez, J.Romero, R.Sanchez, F.Sommer, M.Stryjczyk, V.Virtanen, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov Nuclear Charge Radius of 26mAl and Its Implication for Vud in the Quark Mixing Matrix NUCLEAR MOMENTS 26,26m,27Al [from 27Al(p, d), E=25 MeV]; measured frequencies; deduced resonance spectrum, isotope shifts, mean square charge radii, log ft values. Collinear laser spectroscopy. The COLLAPS beamline at ISOLDE-CERN and the IGISOL CLS beamline.
doi: 10.1103/PhysRevLett.131.222502
2023YA07 Prog.Part.Nucl.Phys. 129, 104005 (2023) X.F.Yang, S.J.Wang, S.G.Wilkins, R.F.Garcia Ruiz Laser spectroscopy for the study of exotic nuclei
doi: 10.1016/j.ppnp.2022.104005
2022BA15 Phys.Lett. B 829, 137064 (2022) S.W.Bai, A.Koszorus, B.S.Hu, X.F.Yang, J.Billowes, C.L.Binnersley, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, T.E.Cocolios, R.P.de Groote, C.S.Devlin, K.T.Flanagan, R.F.Garcia Ruiz, H.Heylen, J.D.Holt, A.Kanellakopoulos, J.Kramer, V.Lagaki, B.Maass, S.Malbrunot-Ettenauer, T.Miyagi, R.Neugart, G.Neyens, W.Nortershauser, L.V.Rodriguez, F.Sommer, A.R.Vernon, S.J.Wang, X.B.Wang, S.G.Wilkins, Z.Y.Xu, C.X.Yuan Electromagnetic moments of scandium isotopes and N=28 isotones in the distinctive 0f7/2 orbit NUCLEAR MOMENTS 41,43,45,46,47,49Sc; measured frequencies; deduced hfs constants, electromagnetic dipole and quadrupole moments. Comparison with theoretical calculations. Two collinear laser spectroscopy (CLS) setups, COLLAPS and CRIS at ISOLDE-CERN.
doi: 10.1016/j.physletb.2022.137064
2022JO01 Phys.Rev. C 105, 024602 (2022) K.L.Jones, A.Bey, S.Burcher, J.M.Allmond, A.Galindo-Uribarri, D.C.Radford, S.Ahn, A.Ayres, D.W.Bardayan, J.A.Cizewski, R.F.Garcia Ruiz, M.E.Howard, R.L.Kozub, J.F.Liang, B.Manning, M.Matos, C.D.Nesaraja, P.D.O'Malley, E.Padilla-Rodal, S.D.Pain, S.T.Pittman, A.Ratkiewicz, K.T.Schmitt, M.S.Smith, D.W.Stracener, R.L.Varner Neutron transfer reactions on the ground state and isomeric state of a 130Sn beam NUCLEAR REACTIONS 9Be, 13C(130Sn, 131Sn), E=520 MeV [secondary 130Sn and 130mSn beams from U(p, F)]; measured reaction products, Eγ, Iγ, Eα, αα-coin, αγ-coin, ααγ-coin. 131Sn; deduced levels, J, π, improved energy values for 1p-2h states. Discussed the probability of one-neutron transfer from the 7- isomeric state in 130Sn. CLARION array of 11 Compton-suppressed HPGe clover detectors combined with BareBall CsI(Tl) array at HRIBF.
doi: 10.1103/PhysRevC.105.024602
2022MA04 Phys.Rev.Lett. 128, 022502 (2022) S.Malbrunot-Ettenauer, S.Kaufmann, S.Bacca, C.Barbieri, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, T.Duguet, R.F.Garcia Ruiz, W.Gins, C.Gorges, G.Hagen, H.Heylen, J.D.Holt, G.R.Jansen, A.Kanellakopoulos, M.Kortelainen, T.Miyagi, P.Navratil, W.Nazarewicz, R.Neugart, G.Neyens, W.Nortershauser, S.J.Novario, T.Papenbrock, T.Ratajczyk, P.-G.Reinhard, L.V.Rodriguez, R.Sanchez, S.Sailer, A.Schwenk, J.Simonis, V.Soma, S.R.Stroberg, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov Nuclear Charge Radii of the Nickel Isotopes 58-68, 70Ni NUCLEAR MOMENTS 58,59,60,61,62,63,64,65,66,67,68Ni, 70Ni; measured frequency-time spectrum; deduced isotope shifts, mean-square charge radii. Comparison with ab initio approaches. Collinear laser spectroscopy beam line COLLAPS, ISOLDE/CERN.
doi: 10.1103/PhysRevLett.128.022502
2022OH01 Phys.Rev. C 105, L031305 (2022) B.Ohayon, R.F.Garcia Ruiz, Z.H.Sun, G.Hagen, T.Papenbrock, B.K.Sahoo Nuclear charge radii of Na isotopes: Interplay of atomic and nuclear theory NUCLEAR STRUCTURE 18,20,22,24,26,28Ne, 21,23,25,27,28,31Na, 22,24,26,28,30,32Mg; analyzed experimental isotope shifts (from 2012YO01, 1978HU12, 2011MA48, 1975HU04); deduced charge radii using improved atomic calculations and nuclear coupled-cluster theory. Developed analytic response-based RCC (AR-RCC) theory to include full triple electron excitations and perturbatively estimate quadrupole excitations. Comparison to the results obtained with atomic parameters obtained with different calculations and with values returned from the semiempirical neutron-skin for Na isotopes.
doi: 10.1103/PhysRevC.105.L031305
2022SA46 J.Phys.(London) G49, 11LT01 (2022) P.L.Sassarini, J.Dobaczewski, J.Bonnard, R.F.Garcia Ruiz Nuclear DFT analysis of electromagnetic moments in odd near doubly magic nuclei NUCLEAR MOMENTS 17O, 17F, 39,41Ca, 39K, 41,49Sc, 47,49Ca, 55,57Ni, 55,77Co, 57,79Cu, 77,79Ni, 99,101Sn, 99,131In, 131,133Sn, 133Sb, 209Pb, 209Bi; calculated electric quadrupole and magnetic dipole moments using code hfodd (v3.07h) for three Skyrme functionals, UNEDF1, SLy4, and SkO', for the Gogny functional D1S, and for the regularized functional N3LO (REG6d.190617). Comparison with available data.
doi: 10.1088/1361-6471/ac900a
2021BA45 Phys.Rev.Lett. 127, 192501 (2021) A.Barzakh, A.N.Andreyev, C.Raison, J.G.Cubiss, P.Van Duppen, S.Peru, S.Hilaire, S.Goriely, B.Andel, S.Antalic, M.Al Monthery, J.C.Berengut, J.Bieron, M.L.Bissell, A.Borschevsky, K.Chrysalidis, T.E.Cocolios, T.Day Goodacre, J.-P.Dognon, M.Elantkowska, E.Eliav, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, L.P.Gaffney, R.F.Garcia Ruiz, M.Godefroid, C.Granados, R.D.Harding, R.Heinke, M.Huyse, J.Karls, P.Larmonier, J.G.Li, K.M.Lynch, D.E.Maison, B.A.Marsh, P.Molkanov, P.Mosat, A.V.Oleynichenko, V.Panteleev, P.Pyykko, M.L.Reitsma, K.Rezynkina, R.E.Rossel, S.Rothe, J.Ruczkowski, S.Schiffmann, C.Seiffert, M.D.Seliverstov, S.Sels, L.V.Skripnikov, M.Stryjczyk, D.Studer, M.Verlinde, S.Wilman, A.V.Zaitsevskii Large Shape Staggering in Neutron-Deficient Bi Isotopes NUCLEAR MOMENTS 187,188,189,191Bi; measured frequencies. 209Bi; deduced hfs, mean-square charge radii, magnetic dipole, and electric quadrupole moments. Comparison with HFB PES calculations, available data.
doi: 10.1103/PhysRevLett.127.192501
2021HE04 Phys.Rev. C 103, 014318 (2021) H.Heylen, C.S.Devlin, W.Gins, M.L.Bissell, K.Blaum, B.Cheal, L.Filippin, R.F.Garcia Ruiz, M.Godefroid, C.Gorges, J.D.Holt, A.Kanellakopoulos, S.Kaufmann, A.Koszorus, K.Konig, S.Malbrunot-Ettenauer, T.Miyagi, R.Neugart, G.Neyens, W.Nortershauser, R.Sanchez, F.Sommer, L.V.RodrIguez, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov High-resolution laser spectroscopy of 27-32Al NUCLEAR MOMENTS 27,28,29,30,31,32Al; measured hyperfine structure spectra of the 3s23p2P3/20 to 3s24s2S1/2 atomic transition using collinear laser spectroscopy at the COLLAPS-ISOLDE-CERN facility; deduced hyperfine parameters, magnetic dipole moments and spectroscopic quadrupole moments with reference to those for 27Al, isotope shifts and mean-square charge radii relative to 27Al. Comparison with theoretical calculations using ab initio valence space in-medium similarity renormalization group method (VS-IMSRG) with multiple sets of two- and three-nucleon forces from chiral effective field theory, and with previous available experimental results. Neutral atoms of 27,28,29,30,31,32Al produced in U(p, X), E=1.4-GeV, using uranium carbide target, followed by extraction from the target, ionized by a resonance ionization laser ion source (RILIS), accelerated to 30 keV, and finally mass separated.
doi: 10.1103/PhysRevC.103.014318
2021KO08 Nat.Phys. 17, 439 (2021), Erratum Nat.Phys. 17, 539 (2021) A.Koszorus, X.F.Yang, W.G.Jiang, S.J.Novario, S.W.Bai, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, B.S.Cooper, R.P.de Groote, A.Ekstrom, K.T.Flanagan, C.Forssen, S.Franchoo, R.F.Garcia Ruiz, F.P.Gustafsson, G.Hagen, G.R.Jansen, A.Kanellakopoulos, M.Kortelainen, W.Nazarewicz, G.Neyens, T.Papenbrock, P.-G.Reinhard, C.M.Ricketts, B.K.Sahoo, A.R.Vernon, S.G.Wilkins Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of N = 32 NUCLEAR MOMENTS 36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52K; measured frequencies; deduced hyperfine structure spectra, charge radii, new magic numbers. Comparison with NNLO, HFB calculations.
doi: 10.1038/s41567-020-01136-5
2021LE11 Phys.Rev. C 104, 014302 (2021) S.Lechner, Z.Y.Xu, M.L.Bissell, K.Blaum, B.Cheal, G.De Gregorio, C.S.Devlin, R.F.Garcia Ruiz, A.Gargano, H.Heylen, P.Imgram, A.Kanellakopoulos, A.Koszorus, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, P.Plattner, L.V.Rodriguez, X.F.Yang, D.T.Yordanov Probing the single-particle behavior above 132Sn via electromagnetic moments of 133, 134Sb and N=82 isotones NUCLEAR MOMENTS 133,134mSb; measured hyperfine structure spectra of the 7/2+ ground state of 133Sb and the (7-) isomeric state of 134Sb using the collinear laser spectroscopy (COLLAPS) at the radioactive ion-beam facility ISOLDE-CERN; deduced hyperfine structure constants, spins, static magnetic dipole and electric quadrupole moments; discussed single-particle behavior of nuclides above the doubly magic nucleus 132Sn. Comparison with previous experimental results, and with shell-model calculations. 133,134Sb isotopes produced in U(p, X) reaction using UCx target, followed by separation of atomic antimony fragments by selective laser ionization, acceleration of ions to 50 keV, and finally mass separated by a magnetic separator and accumulated in a buffer-gas filled radio-frequency quadrupole cooler and buncher.
doi: 10.1103/PhysRevC.104.014302
2021SZ03 Phys.Rev. C 104, 054308 (2021) S.V.Szwec, D.K.Sharp, B.P.Kay, S.J.Freeman, J.P.Schiffer, P.Adsley, C.Binnersley, N.de Sereville, T.Faestermann, R.F.Garcia Ruiz, F.Hammache, R.Hertenberger, A.Meyer, C.Portail, I.Stefan, A.Vernon, S.Wilkins, H.-F.Wirth Neutron occupancies and single-particle energies across the stable tin isotopes NUCLEAR REACTIONS 112,114,116,118,120,122,124Sn(p, d)111Sn/113Sn/115Sn/117Sn/119Sn/121Sn/123Sn, E=21 MeV; 112,114,116,118,120,122,124Sn(3He, α)111Sn/113Sn/115Sn/117Sn/119Sn/121Sn/123Sn, E=36 MeV; 112,114,116,118,120,122,124Sn(d, p)113Sn/115Sn/117Sn/119Sn/121Sn/123Sn/125Sn, E=15 MeV; 112,114,116,118,120,122,124Sn(α, 3He)113Sn/115Sn/117Sn/119Sn/121Sn/123Sn/125Sn, E=41 MeV; measured E(d), I(d), Eα, Iα, E(p), I(p), E(3He), I(3He), differential σ(θ) and analyzed by DWBA calculations; analyzed proton, deuteron, 3He and α spectra using Munich Q3D spectrometer at MLL accelerator facility for (p, d) and (d, p) reactions, and Enge split-pole spectrometer for (3He, α), (α, 3He) reactions at the IJClab of Tandem-Alto facility of Laboratoire de Physique. 112,114,116,118,120,122,124Sn; deduced levels, J, π, L-transfers, spectroscopic factors, summed neutron strengths, fractional occupancies and effective single-particle energies for 2s1/2, 1d3/2, 1d5/2, 0g7/2, and 0h11/2 neutron orbitals. Detailed cross sections at different angles, particle spectra, absolute cross sections and spectroscopic factors are given in the Supplemental Material of the paper.
doi: 10.1103/PhysRevC.104.054308
2020AN12 Phys.Rev. C 102, 014319 (2020) B.Andel, A.N.Andreyev, S.Antalic, M.Al Monthery, A.Barzakh, M.L.Bissell, K.Chrysalidis, T.E.Cocolios, J.G.Cubiss, T.Day Goodacre, N.Dubray, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, L.P.Gaffney, R.F.Garcia Ruiz, S.Goriely, C.Granados, R.D.Harding, R.Heinke, S.Hilaire, M.Huyse, J.-F.Lemaitre, K.M.Lynch, B.A.Marsh, P.Molkanov, P.Mosat, S.Peru, C.Raison, S.Rothe, C.Seiffert, M.D.Seliverstov, S.Sels, D.Studer, J.Sundberg, P.Van Duppen β-delayed fission of isomers in 188Bi RADIOACTIVITY 188,188m,190,190mBi(α), (β+F)[from U(p, X), E=1.4 GeV using RILIS and HRS separators at ISOLDE-CERN facility]; measured Eα, Iα, fission fragment energies, (fission fragment)(fission fragment)-coin; deduced partial T1/2 of β+-delayed fission (βDF) mode, βDF probabilities. 188Pb; deduced mean total kinetic energy and fission fragment mass distribution after 188Bi β-decay of high-spin isomer of 188Bi, limits of βDF partial half-lives of the two activities in 190Bi. Comparison of partial βDF partial half-lives with calculations based on HFB and QRPA, and those of fragment mass distribution with SPY and FRLDM-based calculations. Systematics of βDF partial T1/2 in neutron deficient nuclei in Tl, Bi, At, Fr, Np, Am, Bk, Es and Md isotopes. 182,184,186,188,190,192Pb; calculated theoretical pre-neutron-emission fission fragment mass distributions (FFMDs) with the SPY model using the D1M-Gogny interaction, and with the FRLDM model.
doi: 10.1103/PhysRevC.102.014319
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
2020GA13 Eur.Phys.J. A 56, 136 (2020) Emergence of simple patterns in many-body systems: from macroscopic objects to the atomic nucleus
doi: 10.1140/epja/s10050-020-00134-8
2020GU24 Phys.Rev. A 102, 052812 (2020) F.P.Gustafsson, C.M.Ricketts, M.L.Reitsma, R.F.Garcia Ruiz, S.W.Bai, J.C.Berengut, J.Billowes, C.L.Binnersley, A.Borschevsky, T.E.Cocolios, B.S.Cooper, R.P.de Groote, K.T.Flanagan, A.Koszorus, G.Neyens, H.A.Perrett, A.R.Vernon, Q.Wang, S.G.Wilkins, X.F.Yang Tin resonance-ionization schemes for atomic- and nuclear-structure studies NUCLEAR MOMENTS 116,117,118,119,120,122,124Sn; measured frequencies; deduced isotope shifts, magnetic dipole hyperfine constants, hyperfine structures. Comparison with state-of-the-art atomic calculations using a relativistic Fock-space coupled-cluster method and the configuration interaction approach combined with many-body perturbation theory.
doi: 10.1103/PhysRevA.102.052812
2020KA22 Phys.Rev.Lett. 124, 132502 (2020) S.Kaufmann, J.Simonis, S.Bacca, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, R.F.Garcia Ruiz, W.Gins, C.Gorges, G.Hagen, H.Heylen, A.Kanellakopoulos, S.Malbrunot-Ettenauer, M.Miorelli, R.Neugart, G.Neyens, W.Nortershauser, R.Sanchez, S.Sailer, A.Schwenk, T.Ratajczyk, L.V.Rodriguez, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov Charge Radius of the Short-Lived 68Ni and Correlation with the Dipole Polarizability NUCLEAR MOMENTS 58,60,61,62,64,68Ni; measured frequencies; deduced resonance spectra, isotope shifts, nuclear charge radii. Comparison with novel coupled-cluster calculations.
doi: 10.1103/PhysRevLett.124.132502
2020KA58 Phys.Rev. C 102, 054331 (2020) A.Kanellakopoulos, X.F.Yang, M.L.Bissell, M.L.Reitsma, S.W.Bai, J.Billowes, K.Blaum, A.Borschevsky, B.Cheal, C.S.Devlin, R.F.Garcia Ruiz, H.Heylen, S.Kaufmann, K.Konig, A.Koszorus, S.Lechner, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, T.Ratajczyk, L.V.Rodriguez, S.Sels, S.J.Wang, L.Xie, Z.Y.Xu, D.T.Yordanov Nuclear moments of germanium isotopes near N = 40 NUCLEAR MOMENTS 69,71,73Ge; measured hyperfine structure spectra using collinear laser spectroscopy setup COLLAPS at ISOLDE-CERN; deduced magnetic electric hyperfine structure constants, magnetic dipole moment μ, and electric quadrupole moment Q, with the hyperfine fields for the atomic levels calculated using state-of-the-art atomic relativistic Fock-space coupled-cluster method. Comparison with previous experimental results, and with large-scale shell-model calculations using JUN45 interaction, suggesting mixed wave-function configurations. Systematics of low-energy levels, g factors and quadrupole moments of 67,69,71,73Zn, 69,71,73,75Ge, 73Se. 69,71,73Ge isotopes produced in Zr(p, X), E=1.4 GeV reaction, followed by acceleration of germanium ions to 50 keV, and mass separation using the high-resolution isotope separator (HRS), and finally bunched in a gas-filled linear Paul trap (ISCOOL).
doi: 10.1103/PhysRevC.102.054331
2020RE03 Phys.Rev. C 101, 021301 (2020) P.-G.Reinhard, W.Nazarewicz, R.F.Garcia Ruiz Beyond the charge radius: The information content of the fourth radial moment NUCLEAR STRUCTURE Z=50, N=50-124; calculated form factor and Helm-model values for radial moments r2 and r4, surface thicknesses, diffraction radii for even-even Sn nuclei. 44,48Ca, 124,132,136Sn, 202,208,214Pb; calculated coefficient of determination (CoD) from the covariance measure and multiple correlation coefficients (MCC) for spherical nuclei. Z=20, N=16-40; Z=50, N-50-124; Z=82, N=108-144; calculated relative difference of Helm-model predictions and the form factor values of diffraction radii and surface thicknesses for even-even Ca, Sn and Pb isotopic chains. Relevance to precise measurements of atomic transitions and experimental determination of fourth radial moment r4 in the next generation of radioactive beam facilities, and impact of r4 value in constraining the current energy density functionals.
doi: 10.1103/PhysRevC.101.021301
2020RO19 Phys.Rev. C 102, 051301(R) (2020) L.V.Rodriguez, D.L.Balabanski, M.L.Bissell, K.Blaum, B.Cheal, G.De Gregorio, J.Ekman, R.F.Garcia Ruiz, A.Gargano, G.Georgiev, W.Gins, C.Gorges, H.Heylen, A.Kanellakopoulos, S.Kaufmann, V.Lagaki, S.Lechner, B.Maass, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, S.Sailer, R.Sanchez, S.Schmidt, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov Doubly-magic character of 132Sn studied via electromagnetic moments of 133Sn NUCLEAR MOMENTS 133Sn; measured hyperfine structure spectra, magnetic dipole moment (μ) and electric quadrupole moment (Q) using high-resolution collinear laser spectroscopy at ISOLDE-CERN facility; deduced 1f7/2 neutron orbital configuration for 133Sn g.s., and doubly-magic character of 132Sn. 133Sn activity produced in fission of a uranium carbide target by neutrons from spallation reaction on tungsten by high-energy protons, followed by laser ionization and mass selection through a linear Paul trap. Systematics of magnetic dipole moments (μ) and electric quadrupole moments (Q) for N=83 isotones: 133Sn, 135Te, 137Xe, 139Ba, 141Ce, 143Nd, 145Sm, 147Gd and 149Dy. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.102.051301
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
2019GO12 Phys.Rev.Lett. 122, 192502 (2019) C.Gorges, L.V.Rodriguez, D.L.Balabanski, M.L.Bissell, K.Blaum, B.Cheal, R.F.Garcia Ruiz, G.Georgiev, W.Gins, H.Heylen, A.Kanellakopoulos, S.Kaufmann, M.Kowalska, V.Lagaki, S.Lechner, B.Maass, S.Malbrunot-Ettenauer, W.Nazarewicz, R.Neugart, G.Neyens, W.Nortershauser, P.-G.Reinhard, S.Sailer, R.Sanchez, S.Schmidt, L.Wehner, C.Wraith, L.Xie, Z.Y.Xu, X.F.Yang, D.T.Yordanov Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N=82 Shell Closure NUCLEAR MOMENTS 108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn; measured frequencies; deduced isotope shifts, mean-square nuclear charge radii.
doi: 10.1103/PhysRevLett.122.192502
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
2019XI07 Phys.Lett. B 797, 134805 (2019) L.Xie, X.F.Yang, C.Wraith, C.Babcock, J.Bieron, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, L.Filippin, K.T.Flanagan, R.F.Garcia Ruiz, W.Gins, G.Gaigalas, M.Godefroid, C.Gorges, L.K.Grob, H.Heylen, P.Jonsson, S.Kaufmann, M.Kowalska, J.Kramer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, J.Papuga, R.Sanchez, Y.Tsunoda, D.T.Yordanov Nuclear charge radii of 62-80Zn and their dependence on cross-shell proton excitations NUCLEAR MOMENTS 62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80Zn; measured frequencies; deduced isotope shifts, mean square charge radii.
doi: 10.1016/j.physletb.2019.134805
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
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
2018SC05 Phys.Lett. B 779, 324 (2018) S.Schmidt, J.Billowes, M.L.Bissell, K.Blaum, R.F.Garcia Ruiz, H.Heylen, S.Malbrunot-Ettenauer, G.Neyens, W.Nortershauser, G.Plunien, S.Sailer, V.M.Shabaev, L.V.Skripnikov, I.I.Tupitsyn, A.V.Volotka, X.F.Yang The nuclear magnetic moment of 208Bi and its relevance for a test of bound-state strong-field QED NUCLEAR MOMENTS 208Bi; measured laser frequencies; deduced hfs spectra and coefficients, nuclear magnetic moment. Comparison with available data.
doi: 10.1016/j.physletb.2018.02.024
2018YA11 Phys.Rev. C 97, 044324 (2018) X.F.Yang, Y.Tsunoda, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, K.T.Flanagan, R.F.Garcia Ruiz, W.Gins, C.Gorges, L.K.Grob, H.Heylen, S.Kaufmann, M.Kowalska, J.Kramer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, J.Papuga, R.Sanchez, C.Wraith, L.Xie, D.T.Yordanov Investigating the large deformation of the 5/2+ isomeric state in 73Zn: An indicator for triaxiality NUCLEAR MOMENTS 73,73mZn; measured hyperfine structure spectra using collinear laser spectroscopy (COLLAPS) at CERN-ISOLDE; deduced spins of ground state and isomer, estimated half-life of the isomer, and found no evidence for a previously proposed 5.6-s isomer. 73,73mZn produced by impinging UCx target by 1.4 GeV protons, and ionized by the resonant ionization laser-ion source (RILIS). 69m,71m,73m,75,77,79Zn; calculated quadrupole moments of ground states and isomers using shell model with JUN45 and A3DA-m interactions, and compared with experimental results from experiments at ISOLDE-CERN. Discussed collectivity in 73Zn. NUCLEAR STRUCTURE 71,72,73,74,75Zn; calculated potential energy surfaces (PES) of high-spin states in 71,73,75Zn, and 0+, 2+, and 4+ states in 72,74Zn in (Q2, Q4) plane using Monte Carlo shell model (MCSM). 73Zn; calculated levels, J, π, T plots of levels in 73Zn, and compared with experimental data.
doi: 10.1103/PhysRevC.97.044324
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
2017FA09 Phys.Rev. C 96, 044324 (2017) G.J.Farooq-Smith, A.R.Vernon, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, T.Day Goodacre, R.P.de Groote, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, W.Gins, K.M.Lynch, B.A.Marsh, G.Neyens, S.Rothe, H.H.Stroke, S.G.Wilkins, X.F.Yang Probing the 31Ga ground-state properties in the region near Z=28 with high-resolution laser spectroscopy NUCLEAR MOMENTS 65,67,69,75,79,80,80m,81,82Ga; measured hyperfine spectra using Collinear Resonance Ionization Spectroscopy (CRIS) technique at ISOLDE-CERN facility; deduced hyperfine structure constants, magnetic-dipole moments, electric-quadrupole moments, isotope-shifts, changes in rms charge radii, proton and neutron orbital occupations. Comparison with shell-model calculations using the GXPF1 and JUN45 interactions, and with previous experimental measurements. Systematics of g factors and quadrupole moments in N=28-40 Ga and Cu nuclei. Beams of Ga isotopes produced in U(n, F), with neutrons from W(p, X), E=1.4 GeV at ISOLDE-CERN, followed by laser ionization using the Resonance Ionization Laser Ion Source (RILIS), and mass separation by using the high-resolution mass separator and subsequent cooling and bunching using the ISOLDE cooler buncher (ISCOOL).
doi: 10.1103/PhysRevC.96.044324
2017GA02 J.Phys.(London) G44, 044003 (2017) R.F.Garcia Ruiz, C.Gorges, M.Bissell, K.Blaum, W.Gins, H.Heylen, K.Koenig, S.Kaufmann, M.Kowalska, J.Kramer, P.Lievens, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, D.T.Yordanov, X.F.Yang Development of a sensitive setup for laser spectroscopy studies of very exotic calcium isotopes NUCLEAR MOMENTS 48,51,52Ca; measured fluorescence photons; deduced nuclear charge radii, hyperfine parameter values, nuclear magnetic and quadrupole moments. Comparison with available data.
doi: 10.1088/1361-6471/aa5a24
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
2017WR01 Phys.Lett. B 771, 385 (2017) C.Wraith, X.F.Yang, L.Xie, C.Babcock, J.Bieron, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, L.Filippin, R.F.Garcia Ruiz, W.Gins, L.K.Grob, G.Gaigalas, M.Godefroid, C.Gorges, H.Heylen, M.Honma, P.Jonsson, S.Kaufmann, M.Kowalska, J.Kramer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, F.Nowacki, T.Otsuka, J.Papuga, R.Sanchez, Y.Tsunoda, D.T.Yordanov Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers NUCLEAR MOMENTS 63,65,67,69,71,73,75,77,79Zn; measured optical spectra; deduced hyperfine spectra (hfs) including isomeric structures, J of ground and isomeric states, hfs constants, nuclear magnetic dipole and quadrupole moments, g-factors and wave functions. Comparison with theoretical calculations.
doi: 10.1016/j.physletb.2017.05.085
2016BA44 Phys.Lett. B 760, 387 (2016) C.Babcock, H.Heylen, M.L.Bissell, K.Blaum, P.Campbell, B.Cheal, D.Fedorov, R.F.Garcia Ruiz, W.Geithner, W.Gins, T.Day Goodacre, L.K.Grob, M.Kowalska, S.M.Lenzi, B.Maass, S.Malbrunot-Ettenauer, B.Marsh, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, R.Rossel, S.Rothe, R.Sanchez, Y.Tsunoda, C.Wraith, L.Xie, X.F.Yang Quadrupole moments of odd-A 53-63Mn: Onset of collectivity towards N = 40 NUCLEAR MOMENTS 53,55,57,59,61,63Mn; measured hyperfine spectra; deduced spectroscopic quadrupole moments. Comparison with large-scale shell model predictions using three effective interactions, GXPF1A, LNPS, modified A3DA.
doi: 10.1016/j.physletb.2016.07.016
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
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
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
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
2016YA02 Phys.Rev.Lett. 116, 182502 (2016) X.F.Yang, C.Wraith, L.Xie, C.Babcock, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, K.T.Flanagan, R.F.Garcia Ruiz, W.Gins, C.Gorges, L.K.Grob, H.Heylen, S.Kaufmann, M.Kowalska, J.Kraemer, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, R.Sanchez, D.T.Yordanov Isomer Shift and Magnetic Moment of the Long-Lived 1/2+ Isomer in 7930Zn49: Signature of Shape Coexistence near 78Ni NUCLEAR MOMENTS 67,79Zn [from U(p, X), E=1.4 GeV]; measured hyperfine spectra of the ground and isomeric states; deduced nuclear moments, g factors, root-mean-square charge radii. Comparison with available data.
doi: 10.1103/PhysRevLett.116.182502
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
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
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
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
2015JO03 Acta Phys.Pol. B46, 537 (2015) K.L.Jones, S.Ahn, J.M.Allmond, A.Ayres, D.W.Bardayan, T.Baugher, D.Bazin, J.S.Berryman, A.Bey, C.Bingham, L.Cartegni, G.Cerizza, K.Y.Chae, J.A.Cizewski, A.Gade, A.Galindo-Uribarri, R.F.Garcia Ruiz, R.Grzywacz, M.E.Howard, R.L.Kozub, J.F.Liang, B.Manning, M.MatoS, S.McDaniel, D.Miller, C.D.Nesaraja, P.D.O'Malley, S.Padgett, E.Padilla-Rodal, S.D.Pain, S.T.Pittman, D.C.Radford, A.Ratkiewicz, K.T.Schmitt, A.Shore, M.S.Smith, D.W.Stracener, S.R.Stroberg, J.Tostevin, R.L.Varner, D.Weisshaar, K.Wimmer, R.Winkler Recent Direct Reaction Experimental Studies with Radioactive Tin Beams
doi: 10.5506/APhysPolB.46.537
2015RU02 Phys.Rev. C 91, 041304 (2015) R.F.Garcia Ruiz, M.L.Bissell, K.Blaum, N.Frommgen, M.Hammen, J.D.Holt, M.Kowalska, K.Kreim, J.Menendez, R.Neugart, G.Neyens, W.Nortershauser, F.Nowacki, J.Papuga, A.Poves, A.Schwenk, J.Simonis, D.T.Yordanov Ground-state electromagnetic moments of calcium isotopes NUCLEAR MOMENTS 43,45,47,49,51Ca; measured hyperfine spectra, hyperfine structure constants, J, g factors, magnetic and quadrupole moments using collinear laser spectroscopy (COLLAPS) and radiofrequency quadrupole (RFQ) beam cooler ISCOOL at ISOLDE-CERN facility. Comparison with theoretical predictions using KB3G, GXPF1A, SDPF.SM and three-nucleon forces (NN+3N). Ca beams produced in bombardment of uranium carbide target with 1.4-GeV protons at ISOLDE-CERN.
doi: 10.1103/PhysRevC.91.041304
2014BI10 Phys.Rev.Lett. 113, 052502 (2014) M.L.Bissell, J.Papuga, H.Naidja, K.Kreim, K.Blaum, M.De Rydt, R.F.Garcia Ruiz, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, F.Nowacki, M.M.Rajabali, R.Sanchez, K.Sieja, D.T.Yordanov Proton-Neutron Pairing Correlations in the Self-Conjugate Nucleus 38K Probed via a Direct Measurement of the Isomer Shift ATOMIC PHYSICS 38K; measured frequency of hyperfine spectra; deduced isomer shift, rms charge radii. Comparison with large-scale shell model calculations.
doi: 10.1103/PhysRevLett.113.052502
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
2014KR04 Phys.Lett. B 731, 97 (2014) K.Kreim, M.L.Bissell, J.Papuga, K.Blaum, M.De Rydt, R.F.Garcia Ruiz, S.Goriely, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, R.Sanchez Alarcon, H.H.Stroke, D.T.Yordanov Nuclear charge radii of potassium isotopes beyond N = 28 ATOMIC PHYSICS 38,39,42,44,46,47,48,49,50,51K; measured optical spectra, hyperfine structure; deduced spins, mean square charge radii. Comparison with HFB-24 and DD-ME2 theoretical models.
doi: 10.1016/j.physletb.2014.02.012
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
2014PA45 Phys.Rev. C 90, 034321 (2014) J.Papuga, M.L.Bissell, K.Kreim, C.Barbieri, K.Blaum, M.De Rydt, T.Duguet, R.F.Garcia Ruiz, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, R.Sanchez, N.Smirnova, V.Soma, D.T.Yordanov Shell structure of potassium isotopes deduced from their magnetic moments NUCLEAR MOMENTS 38,38m,39,42,44,46,47,48,49,50,51K; measured hyperfine structure using high-resolution collinear laser spectroscope COLLAPS and Paul trap ISCOOL at ISOLDE-CERN; deduced J, magnetic moments, configurations, magnetic hyperfine parameters. Potassium isotopes produced in U(p, X), E=1 GeV at ISOLDE-CERN. 38,40,41,42,43,44,45,46,47,48,49,51K; deduced hyperfine structure anomalies. Comparison with shell model calculations using SDPF-NR and SDPF-U effective interactions, and with previous experimental results.
doi: 10.1103/PhysRevC.90.034321
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
2013PA11 Phys.Rev.Lett. 110, 172503 (2013) J.Papuga, M.L.Bissell, K.Kreim, K.Blaum, B.A.Brown, M.De Rydt, R.F.Garcia Ruiz, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, M.M.Rajabali, R.Sanchez, Y.Utsuno, D.T.Yordanov Spins and Magnetic Moments of 49K and 51K: Establishing the 1/2+ and 3/2+ Level Ordering Beyond N=28 NUCLEAR MOMENTS 39,47,49,51K; measured hyperfine spectra; deduced dipole magnetic moments, g-factors. Comparison with available data, shell model calculations.
doi: 10.1103/PhysRevLett.110.172503
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