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NSR database version of May 24, 2024.

Search: Author = M.Seliverstov

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2023CU04      Phys.Rev.Lett. 131, 202501 (2023)

J.G.Cubiss, A.N.Andreyev, A.E.Barzakh, P.Van Duppen, S.Hilaire, S.Peru, S.Goriely, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, D.Atanasov, K.Blaum, T.E.Cocolios, T.Day Goodacre, A.de Roubin, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, R.D.Harding, M.Huyse, N.Imai, D.T.Joss, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, D.Neidherr, G.G.O'Neill, R.D.Page, S.D.Prosnyak, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, S.Sels, L.V.Skripnikov, A.Stott, C.Van Beveren, E.Verstraelen, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

Deformation versus Sphericity in the Ground States of the Lightest Gold Isotopes

NUCLEAR MOMENTS 176,177,178,179,180,181,182,183,187,191,193,195Au [from U(p, X), E=1.4 GeV]; measured frequencies; deduced mean-squared charge radii, ground-state deformations, nuclear magnetic moments. Comparison with available data. The in-source, resonance-ionization laser spectroscopy technique, at the ISOLDE facility (CERN).

doi: 10.1103/PhysRevLett.131.202501
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2022VE01      Phys.Rev. C 105, 034338 (2022)

M.Venhart, A.N.Andreyev, J.G.Cubiss, J.L.Wood, A.E.Barzakh, C.Van Beveren, T.E.Cocolios, R.P.de Groote, D.V.Fedorov, V.N.Fedosseev, R.Ferrer, D.A.Fink, L.Ghys, M.Huyse, U.Koster, J.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, P.L.Molkanov, T.J.Procter, E.Rapisarda, K.Sandhu, M.D.Seliverstov, A.M.Sjodin, P.Van Duppen, M.Veselsky

Decay modes of the 9/2- isomeric state in 183Tl

RADIOACTIVITY 183mTl(IT), (α)[from U(p, F), E=1.4 GeV]; measured Eg, Iγ, ce, Eα, Iα, γγ-coin, ceγ-coin, αγ-coin; deduced branching ratios, T1/2, reduced transition widths and hindrance factor for α-decay branch. 183Tl; deduced levels, J, π, δ, ICC, B(E3). Systematics of 9/2- isomers in neutron-deficient odd-mass Tl isotopes. Comparison to 182mHg decay and other experimental data. Selective laser resonance ionization and mass separation at ISOLDE (CERN).

doi: 10.1103/PhysRevC.105.034338
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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
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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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2021HA32      Phys.Rev. C 104, 024326 (2021)

R.D.Harding, A.N.Andreyev, A.E.Barzakh, J.G.Cubiss, P.Van Duppen, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, T.E.Cocolios, T.Day Goodacre, K.Dockx, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, J.D.Johnson, D.T.Joss, M.Huyse, N.Imai, K.M.Lynch, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, G.G.O'Neill, R.D.Page, R.E.Rossel, S.Rothe, M.D.Seliverstov, S.Sels, C.Van Beveren, E.Verstraelen

Laser-assisted nuclear decay spectroscopy of 176, 177, 179Au

RADIOACTIVITY 179Au(α), (EC), (β+); 177,177m,176,176mAu, 176,177,179Pt, 173,173m,172,172mIr(α)[179,177,176Au laser ionized and mass-separated beams from U(p, X), E=1.4 GeV, followed by separation of products using Resonance Ionization Laser Ion Source (RILIS) and General Purpose Separator (GPS) at the Windmill decay station of ISOLDE-CERN facility]; measured Eα, Iα, K-x rays, Eγ, Iγ, αγ-coin. 179Pt, 175,173,172Ir, 175Os, 169,168Re; deduced levels, J, π, α-hindrance factors, reduced α-widths, conversion coefficients, multipolarities. 176,176mAu; deduced α-decay branching ratios for the low-spin and high-spin states. 179Au; measured half-life of the decay of the ground state. Systematics of α-reduced widths for 171,173,175,176,177,179Au α decays.

NUCLEAR MOMENTS 176,176mAu; measured in-source laser spectroscopy of hyperfine structure; deduced nuclear magnetic moments, spins and configurations for the high- and low-spin states.

doi: 10.1103/PhysRevC.104.024326
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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
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2020BA17      Phys.Rev. C 101, 034308 (2020)

A.E.Barzakh, D.Atanasov, A.N.Andreyev, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, K.Blaum, T.E.Cocolios, J.G.Cubiss, P.Van Duppen, T.Day Goodacre, A.de Roubin, Yu.A.Demidov, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, R.D.Harding, D.T.Joss, F.Herfurth, M.Huyse, N.Imai, M.G.Kozlov, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, D.Neidherr, R.D.Page, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, S.Sels, C.Van Beveren, E.Verstraelen, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

Hyperfine anomaly in gold and magnetic moments of Iπ = 11/2- gold isomers

NUCLEAR MOMENTS 177m,191m,193m,195mAu; measured hyperfine structure spectra (hfs), hyperfine splitting, differential hyperfine anomaly, magnetic dipole moments using in-source laser resonance-ionization spectroscopy (RILIS) at CERN-ISOLDE. Mass separated Au beams were produced in U(p, X), E=1.4 GeV reaction, and delivered to either the ISOLTRAP Multi-Reflection Time-of-Flight Mass Spectrometer (MR-ToF MS) or the Windmill (WM) decay station. Comparison to the previously measured magnetic moments. 185,186,187,189,189m,191,193,194Au; re-evaluated previously measured magnetic dipole moments by properly accounting for the hyperfine anomaly.

doi: 10.1103/PhysRevC.101.034308
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2020BA29      Phys.Rev. C 101, 064321 (2020)

A.E.Barzakh, D.Atanasov, A.N.Andreyev, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, K.Blaum, T.E.Cocolios, J.G.Cubiss, P.Van Duppen, T.Day Goodacre, A.de Roubin, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, R.D.Harding, M.Huyse, N.Imai, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, D.Neidherr, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, S.Sels, C.Van Beveren, E.Verstraelen, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

Shape coexistence in 187Au studied by laser spectroscopy

NUCLEAR MOMENTS 187,187mAu; measured hyperfine-structure (hfs) spectrum, time-of-flight of the 9/2- isomer of 187Au using ISOLTRAP's multireflection time-of-flight mass separator (MR-ToF-MS) and resonance-ionization laser spectroscopy technique at CERN-ISOLDE. 187mAu; deduced hfs parameters, isotope shift, mean-square charge radius, magnetic moment, shape coexistence, Nilsson configuration. 187,187mAu produced in U(p, F), E=1.4 GeV reaction, and separated in mass-to-charge ratio using the General Purpose Separator (GPS) of ISOLDE. Systematics of changes in mean-square charge radii for A=183-199 Au isotopes. Systematics of magnetic moments of the 9/2-, πh9/2 states in Bi, Th, Au and Fr isotopes.

doi: 10.1103/PhysRevC.101.064321
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2020CU02      Phys.Rev. C 101, 014314 (2020)

J.G.Cubiss, R.D.Harding, A.N.Andreyev, N.Althubiti, B.Andel, S.Antalic, A.E.Barzakh, T.E.Cocolios, T.Day Goodacre, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, L.P.Gaffney, L.Ghys, M.Huyse, K.M.Lynch, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, R.E.Rossel, S.Rothe, M.D.Seliverstov, S.Sels, P.Spagnoletti, C.Van Beveren, P.Van Duppen, M.Veinhard, E.Verstraelen, A.Zadvornaya

α-decay branching ratio of 180Pt

RADIOACTIVITY 180Pt(α)[from 180Hg to 180Au to 180Pt EC decay chain, 180Hg from Pb(p, X), E=1.4 GeV at ISOLDE-CERN, followed by a three-step, resonance laser ionization]; measured Eα, Iα; deduced α branching ratio, reduced α width for g.s. to g.s. transition. Comparison with earlier experimental results. 180Hg, 180Au, 176Pt, 172Os(α); measured Eα in the decay chains starting from 180Hg. Systematics of reduced α-decay widths for g.s. to g.s. α transitions in N(even)=88-112 Pt, N(even)=90-108 Hg and N(even)=96-112 Pb isotopes.

doi: 10.1103/PhysRevC.101.014314
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2020CU04      Phys.Rev. C 102, 044332 (2020)

J.G.Cubiss, A.N.Andreyev, A.E.Barzakh, V.Manea, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, D.Atanasov, K.Blaum, T.E.Cocolios, T.Day Goodacre, A.de Roubin, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, R.D.Harding, F.Herfurth, M.Huyse, N.Imai, D.T.Joss, S.Kreim, D.Lunney, K.M.Lynch, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, D.Neidherr, G.G.O'Neill, R.D.Page, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, S.Sels, A.Stott, C.Van Beveren, P.Van Duppen, E.Verstraelen, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

Laser-assisted decay spectroscopy and mass spectrometry of 178Au

NUCLEAR MOMENTS 178,178mAu; measured hyperfine structure spectrum using multireflection time-of-flight mass spectrometer (MR-ToF MS) at CERN-ISOLDE; deduced spins based on hyperfine structure intensity patterns, magnetic dipole moments, Nilsson configurations.

ATOMIC MASSES 178,178mAu; measured cyclotron frequency using time-of-flight ion-cyclotron (TOF-ICR) technique using Penning-trap system of ISOLTRAP at CERN-ISOLDE; deduced mass excesses, and excitation energy of the isomer in 178Au.

RADIOACTIVITY 178,178mAu(α), (EC), (β+)[from U(p, X), E=1.4 GeV, followed by laser ionization and separation by mass-to-charge ratio using the GPS, then transported to Windmill (WM) system]; 178Pt(α)[from 178Au ϵ decay]; measured Eα, Iα, Eγ, Iγ, αγ-coin, α(x rays)-coin, half-lives of decays of 178Au and 178mAu using Si detectors for α particles and LEGe detector for γ rays. 178,178mAu; deduced branching ratios for α and ϵ decay modes, reduced α-decay widths, α-hindrance factors (HF), Nilsson configurations. 174,174mIr; deduced levels, J, total conversion coefficient for 56.8-keV transition in 174Ir, multipolarities, configurations, energy of the isomer. 174Ir(α)[from 178Au α decay]; measured αγ-coin. 170Re; deduced possible isomer in 170Re.

doi: 10.1103/PhysRevC.102.044332
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2020HA24      Phys.Rev. C 102, 024312 (2020)

R.D.Harding, A.N.Andreyev, A.E.Barzakh, D.Atanasov, J.G.Cubiss, P.Van Duppen, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, K.Blaum, T.E.Cocolios, T.Day Goodacre, A.de Roubin, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, D.T.Joss, F.Herfurth, M.Huyse, N.Imai, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, D.Neidherr, R.D.Page, A.Pastore, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, S.Sels, C.Van Beveren, E.Verstraelen, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

Laser-assisted decay spectroscopy for the ground states of 180, 182Au

NUCLEAR MOMENTS 180,182Au; measured hyperfine structure spectra, magnetic moments of the ground states using the ISOLTRAP Multi-Reflection Time-of-Flight Mass Spectrometer and laser spectroscopy at ISOLDE, CERN; deduced J, π, Nilsson configurations of ground states. Comparison with theoretical magnetic moments, and with previous experimental results. Laser-ionized and mass-separated 180,182Au isotopes formed in 238U(p, X), E=1.4 GeV spallation reaction.

RADIOACTIVITY 180Au(α), (β+)[from 238U(p, X), E=1.4 GeV, followed by separation using RILIS, General purpose separator (GPS) at ISOLDE-CERN]; measured Eα, Iα, Eγ, Iγ, I(x rays), αγ- and γγ-coin, half-life of 180Au decay. 176Ir; deduced levels, J, π, α-branching ratio, total conversion coefficients, multipolarities, α-hindrance factors.

doi: 10.1103/PhysRevC.102.024312
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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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2019CU02      Phys.Rev. C 99, 064317 (2019)

J.G.Cubiss, A.N.Andreyev, A.E.Barzakh, B.Andel, S.Antalic, T.E.Cocolios, T.Day Goodacre, D.V.Fedorov, V.N.Fedosseev, R.Ferrer, D.A.Fink, L.P.Gaffney, L.Ghys, M.Huyse, Z.Kalaninova, U.Koster, B.A.Marsh, P.L.Molkanov, R.E.Rossel, S.Rothe, M.D.Seliverstov, S.Sels, A.M.Sjodin, M.Stryjczyk, V.L.Truesdale, C.Van Beveren, P.Van Duppen, G.L.Wilson

Fine structure in the α decay of 218At

RADIOACTIVITY 218At(α)[from U(p, F), E=1.4 GeV, followed by selective ionization of 218At using RILIS at CERN-ISOLDE facility]; measured Eα, Iα, Eγ, Iγ, αγ-coin, half-life of 218At decay using silicon detectors for α detection and low-energy Ge detector for γ detection. 214Bi; deduced levels, J, π, α feedings, α hindrance factors. 218At; deduced J, π. Systematics of low-lying level energies in 210,212,214Bi, 212,214,216At, and α hindrance factors in the decays of 214,216,218At, 216Fr. Comparison with theoretical predictions, and with previous experimental results.

doi: 10.1103/PhysRevC.99.064317
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2019FL06      Phys.Rev. C 99, 054332 (2019)

F.Flavigny, J.Elseviers, A.N.Andreyev, C.Bauer, V.Bildstein, A.Blazhev, B.A.Brown, H.De Witte, J.Diriken, V.N.Fedosseev, S.Franchoo, R.Gernhauser, M.Huyse, S.Ilieva, S.Klupp, Th.Kroll, R.Lutter, B.A.Marsh, D.Mucher, K.Nowak, T.Otsuka, J.Pakarinen, N.Patronis, R.Raabe, F.Recchia, P.Reiter, T.Roger, S.Sambi, M.Seidlitz, M.D.Seliverstov, B.Siebeck, Y.Tsunoda, P.Van Duppen, M.Vermeulen, M.Von Schmid, D.Voulot, N.Warr, F.Wenander, K.Wimmer

Microscopic structure of coexisting 0+ states in 68Ni probed via two-neutron transfer

NUCLEAR REACTIONS 3H(66Ni, p)68Ni, E=2.6 MeV/nucleon; measured Ep, Ip, Eγ, Iγ, pγ-coin, differential σ(θ) distributions of transfer to ground state, first excited 0+ and first 2+ states in 68Ni using the T-REX silicon particle detector array for light charged recoil detection and the Miniball detector array for γ detection at ISOLDE-CERN. 68Ni; deduced levels, L-transfer, neutron and proton average orbital occupancies of ground state, excited 0+ state, and the first 2+ state. DWBA analysis of angular distributions using the FRESCO code. Comparison with shell model calculations with the A3DA-m and the JJ44pna interaction. Discussed feeding of the 0+ states by the transfer of neutrons mainly filling the N=40 subshell closure for the ground state.

doi: 10.1103/PhysRevC.99.054332
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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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2018BA03      Phys.Rev. C 97, 014322 (2018)

A.E.Barzakh, D.V.Fedorov, V.S.Ivanov, P.L.Molkanov, F.V.Moroz, S.Yu.Orlov, V.N.Panteleev, M.D.Seliverstov, Yu.M.Volkov

Shell effect in the mean square charge radii and magnetic moments of bismuth isotopes near N=126

NUCLEAR MOMENTS 211,213Bi; measured hyperfine splittings, isotope shifts, using in-source resonance ionization spectroscopy at the laser-nuclear complex of the Investigation of Radioactive Isotopes on Synchrocyclotron (IRIS) facility at Petersburg Nuclear Physics Institute (PNPI) synchrocyclotron; deduced hfs constants, changes in rms radii, magnetic dipole and electric quadrupole moments. Systematics of magnetic dipole moments and changes in charge radii for nuclei near N=126.

doi: 10.1103/PhysRevC.97.014322
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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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2018CU04      Phys.Lett. B 786, 355 (2018)

J.G.Cubiss, A.E.Barzakh, A.N.Andreyev, M.Al Monthery, N.Althubiti, B.Andel, S.Antalic, D.Atanasov, K.Blaum, T.E.Cocolios, T.Day Goodacre, R.P.de Groote, A.de Roubin, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, R.Ferrer, D.A.Fink, L.P.Gaffney, L.Ghys, A.Gredley, R.D.Harding, F.Herfurth, M.Huyse, N.Imai, D.T.Joss, U.Koster, S.Kreim, V.Liberati, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, P.Mosat, D.Neidherr, G.G.O'Neill, R.D.Page, T.J.Procter, E.Rapisarda, M.Rosenbusch, S.Rothe, K.Sandhu, L.Schweikhard, M.D.Seliverstov, S.Sels, P.Spagnoletti, V.L.Truesdale, C.Van Beveren, P.Van Duppen, M.Veinhard, M.Venhart, M.Veselsky, F.Wearing, A.Welker, F.Wienholtz, R.N.Wolf, S.G.Zemlyanoy, K.Zuber

Change in structure between the I=1/2 states in 181Tl and 177, 179Au

RADIOACTIVITY 181Tl(α) [from U(p, X), E=1.4 GeV]; measured decay products, Eα, Iα; deduced α-decay branching ratio and T1/2. Comparison with available data.

NUCLEAR MOMENTS 177,179Au; measured frequencies; deduced hyperfine spectra, magnetic dipole moments, J assignments of the ground states.

doi: 10.1016/j.physletb.2018.10.005
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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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2018ST18      Phys.Rev. C 98, 064326 (2018)

M.Stryjczyk, Y.Tsunoda, I.G.Darby, H.De Witte, J.Diriken, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, M.Huyse, U.Koster, B.A.Marsh, T.Otsuka, D.Pauwels, L.Popescu, D.Radulov, M.D.Seliverstov, A.M.Sjodin, P.Van den Bergh, P.Van Duppen, M.Venhart, W.B.Walters, K.Wimmer

β-decay study of the 66Mn - 66Fe - 66Co - 66Ni decay chain

RADIOACTIVITY 66Mn(β-), (β-n)[from U(p, F), Mn beam purified by laser resonance ionization and mass separation]; 66Fe(β-)[from 66Mn β- decay]; 66Co(β-)[from 66Fe β- decay]; measured Eβ, Iβ, Eγ, Iγ, half-lives of β-decaying 66Mn, 66Fe, 66Co, γγ- and βγγ-coin, half-lives of isomers in 65Fe, 66Co by γ(t) using plastic scintillators for β detection and MiniBall cluster Ge detectors for γ detection at ISOLDE-CERN. 65,66Fe, 66Co, 66Ni; deduced levels, isomers, J, π, β feedings, logft, B(GT) values, %β-n value for the decay of 66Mn. Comparison with Monte Carlo shell model calculations.

NUCLEAR STRUCTURE 66Mn, 66Fe, 66Co, 66Ni; calculated average proton and neutron occupation numbers for selected low-lying positive-parity states, potential energy surface (PES) in (Q0, Q2) plane, levels, J, π, B(M1), B(E2) using Monte Carlo Shell model with the A3DA interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.98.064326
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2017AL34      Phys.Rev. C 96, 044325 (2017)

N.A.Althubiti, D.Atanasov, K.Blaum, T.E.Cocolios, T.Day Goodacre, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, S.George, F.Herfurth, K.Heyde, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, D.Neidherr, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber, for the ISOLTRAP Collaboration

Spectroscopy of the long-lived excited state in the neutron-deficient nuclides 195, 197, 199Po by precision mass measurements

ATOMIC MASSES 195,195m,196,197,197m,199m,203,208Po; measured cyclotron frequency ratios, mass excesses using ISOLTRAP Penning-trap mass spectrometer at ISOLDE-CERN. The Po isotopes produced in U(p, X), E=1.4 GeV using RILIS and high-resolution mass spectrometer. 191m,193mPb, 195m,197mPo, 199m,201mRn, 203m,205mRa; deduced level energies of 13/2+ isomers in odd-A polonium isotopes from mass measurements, and other isomers from α decay. Comparison with evaluated data in AME-2016.

RADIOACTIVITY 195,195m,197,197m,199mPo(α)[from U(p, X), E=1.4 GeV using RILIS and high-resolution mass spectrometer at ISOLDE-CERN]; measured Eα, Iα.

doi: 10.1103/PhysRevC.96.044325
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2017AN16      Phys.Rev. C 96, 054327 (2017)

B.Andel, A.N.Andreyev, S.Antalic, A.Barzakh, N.Bree, T.E.Cocolios, V.F.Comas, J.Diriken, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, S.Franchoo, L.Ghys, J.A.Heredia, M.Huyse, O.Ivanov, U.Koster, V.Liberati, B.A.Marsh, K.Nishio, R.D.Page, N.Patronis, M.D.Seliverstov, I.Tsekhanovich, P.Van den Bergh, J.Van De Walle, P.Van Duppen, M.Venhart, S.Vermote, M.Veselsky, C.Wagemans

Detailed α-decay study of 180Tl

RADIOACTIVITY 180Tl(α)[from U(p, X), E=1.4 GeV using Resonance Ionization Laser Ion Source (RILIS) and HRS separator at ISOLDE-CERN facility]; measured Eα, Iα, Eγ, Iγ, E(x ray), I(x ray), αγ- and αγγ-coin. 176Au; deduced levels, α-decay branching ratios, reduced α-widths, total and K-conversion coefficients, multipolarities, configurations, population of only the low-spin activity in 176Au from 180Tl α decay. Comparison with previous experimental data. Systematics of α-reduced widths in α-decays of 178,180,182,184Tl. 180Hg(α)[from 180Tl ϵ decay]; 176Au(α)[from 180Tl α decay]; 176Pt(α)[from 180Hg α decay]; measured Eα, Eγ, αγ-coin. 172Ir; deduced level, low-spin activity in 172Ir populated by 176Au α decay.

doi: 10.1103/PhysRevC.96.054327
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2017BA04      Phys.Rev. C 95, 014324 (2017)

A.E.Barzakh, A.N.Andreyev, T.E.Cocolios, R.P.de Groote, D.V.Fedorov, V.N.Fedosseev, R.Ferrer, D.A.Fink, L.Ghys, M.Huyse, U.Koster, J.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, P.L.Molkanov, T.J.Procter, E.Rapisarda, S.Rothe, K.Sandhu, M.D.Seliverstov, A.M.Sjodin, C.Van Beveren, P.Van Duppen, M.Venhart, M.Veselsky

Changes in mean-squared charge radii and magnetic moments of 179-184Tl measured by in-source laser spectroscopy

NUCLEAR MOMENTS 179,180,181,182m,183,183m,184mTl; measured hyperfine splittings, spins for 179,181,183Tl, magnetic moments, isotope shifts, and changes in mean square charge radii. 182mTl and 184mTl include two, and three isomers, respectively. In-source resonance ionization laser spectroscopy at CERN-ISOLDE facility; discussed configurations. Radioactive Tl isotopes from U(p, X), E=1.4 GeV reaction using UCx target, and General Purpose Separator of ISOLDE.

doi: 10.1103/PhysRevC.95.014324
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2017BA12      Phys.Rev. C 95, 044324 (2017)

A.E.Barzakh, D.V.Fedorov, V.S.Ivanov, P.L.Molkanov, F.V.Moroz, S.Yu.Orlov, V.N.Panteleev, M.D.Seliverstov, Yu.M.Volkov

Onset of deformation in neutron-deficient Bi isotopes studied by laser spectroscopy

NUCLEAR MOMENTS 189,190,190m,191,192,192m,194,194m,198mBi; measured hyperfine splitting, isotope shifts at Radioactive Isotopes on Synchrocyclotron facility of PNPI; deduced changes in mean-square charge radii, magnetic dipole moments, configurations, deformation parameters. Systematics of <r2> values in Pb, Bi and Po isotopes, In-source resonance ionization spectroscopy.

doi: 10.1103/PhysRevC.95.044324
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2017MO44      Physics of Part.and Nuclei 48, 914 (2017)

P.L.Molkanov, A.E.Barzakh, D.V.Fedorov, V.S.Ivanov, F.V.Moroz, S.Yu.Orlov, V.N.Panteleev, M.D.Seliverstov, Yu.M.Volkov

Shape evolution for neutron-deficient bismuth isotopes studied by resonance laser ionization spectroscopy

ATOMIC PHYSICS 189,190,191,192,193,194,195,196,197,198,211Bi; measured 306.77 nm atomic transition using in-source laser spectroscopy at IRIS facility of Petersburg Nuclear Physics Institute; deduced isotope shifts, isomers, mean-square charge radii, large isomer shift for the intruder isomer states with spin I=1/2 (A=193, 195, 197), shape coexistence in these nuclei with intruder isomer states more deformed than the gs, nearly spherical behavior for gs of even-neutron Bi isotopes at N less than 109 (in contrast to Pb and Tl isotopic chains).

doi: 10.1134/S1063779617060417
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2017RA11      J.Phys.(London) G44, 074001 (2017)

E.Rapisarda, A.N.Andreyev, S.Antalic, A.Barzakh, T.E.Cocolios, I.G.Darby, R.De Groote, H.De Witte, J.Diriken, J.Elseviers, D.Fedorov, V.N.Fedosseev, R.Ferrer, M.Huyse, Z.Kalaninova, U.Koster, J.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, P.L.Molkanov, D.Pauwels, T.J.Procter, D.Radulov, K.Sandhu, M.D.Seliverstov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, M.Venhart, M.Veselsky, K.Wrzosek-Lipska

Shape coexistence studied in 182, 184Hg via the β decay of 182, 184Tl

RADIOACTIVITY 182,184Tl(β+), (EC) [from U(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies, intensities, J, π, conversion coefficients. Comparison with systematics.

doi: 10.1088/1361-6471/aa6bb6
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2016BA42      Phys.Rev. C 94, 024334 (2016)

A.E.Barzakh, D.V.Fedorov, V.S.Ivanov, P.L.Molkanov, F.V.Moroz, S.Yu.Orlov, V.N.Panteleev, M.D.Seliverstov, Yu.M.Volkov

Laser spectroscopy studies of intruder states in 193, 195, 197Bi

ATOMIC PHYSICS 193,193m,195,195m,197,197mBi; measured hyperfine spectra of ground states and isomers using method of resonance laser photoionization in the laser ion source at the IRIS synchrocyclotron facility of PNPI, Gatchina; deduced isotope and isomer shifts, and hfs-constants.

NUCLEAR MOMENTS 193,193m,195,195m,197,197mBi; measured hyperfine spectra of ground states and isomers using method of resonance laser photoionization in the laser ion source; deduced magnetic-dipole and electric quadrupole moments, deformation parameters, changes in mean square charge radii, Z-dependence of mean square charge radii. Systematics of magnetic-dipole moments and isomer shifts for 9/2- and 1/2+ states in odd-A Bi and Tl nuclei of even N=104-130. Systematics of changes in mean-square charge radii even-A Pb isotopes, and for 9/2+ and 1/2- states in odd-A Bi isotopes.

doi: 10.1103/PhysRevC.94.024334
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2016KL05      Phys.Rev. C 93, 054303 (2016)

M.Klintefjord, K.Hadynska-Klek, A.Gorgen, C.Bauer, F.L.Bello Garrote, S.Bonig, B.Bounthong, A.Damyanova, J.-P.Delaroche, V.Fedosseev, D.A.Fink, F.Giacoppo, M.Girod, P.Hoff, N.Imai, W.Korten, A.-C.Larsen, J.Libert, R.Lutter, B.A.Marsh, P.L.Molkanov, H.Naidja, P.Napiorkowski, F.Nowacki, J.Pakarinen, E.Rapisarda, P.Reiter, T.Renstrom, S.Rothe, M.D.Seliverstov, B.Siebeck, S.Siem, J.Srebrny, T.Stora, P.Thole, T.G.Tornyi, G.M.Tveten, P.Van Duppen, M.J.Vermeulen, D.Voulot, N.Warr, F.Wenander, H.De Witte, M.Zielinska

Structure of low-lying states in 140Sm studied by Coulomb excitation

NUCLEAR REACTIONS 94Mo(140Sm, 140Sm'), (140Sm, 94Mo'), E=2.85 MeV/nucleon, [secondary 140Sm beam from Ta(p, X), E=1.4 GeV reaction at ISOLDE-CERN using RILIS, REXTRAP and EBIS]; measured scattered 140Sm and 94Mo particles, Eγ, Iγ, (particle)γ-coin, γ-yields using MINIBALL array for γ rays and DSSSD detectors for particle detection, γ spectra with laser on and off, γ-ray angular distributions. 140Sm; deduced E2 matrix elements, B(E2), spectroscopic quadrupole moment for the first two 2+ and the first 4+ states using coupled channel code GOSIA and normalized to γ-ray yield for first 2+ state in 94Mo target, and to known half-life for the first 2+ in 140Sm. Comparison with theoretical calculations using beyond-mean-field model with Gogny D1S interaction, shell model, interacting boson approximation (IBA), and E(5) symmetry. Calculated potential energy surface in (β, γ) plane for 140Sm. 95Mo; measured Iγ yield for 3/2+ to 5/2+ ground-state transition.

doi: 10.1103/PhysRevC.93.054303
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2016TR07      Phys.Rev. C 94, 034308 (2016)

V.L.Truesdale, A.N.Andreyev, L.Ghys, M.Huyse, P.Van Duppen, S.Sels, B.Andel, S.Antalic, A.Barzakh, L.Capponi, T.E.Cocolios, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, F.P.Hessberger, Z.Kalaninova, U.Koster, J.F.W.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, S.Mitsuoka, Y.Nagame, K.Nishio, S.Ota, D.Pauwels, L.Popescu, D.Radulov, E.Rapisarda, S.Rothe, K.Sandhu, M.D.Seliverstov, A.M.Sjodin, C.Van Beveren, P.Van den Bergh, Y.Wakabayashi

β-delayed fission and α decay of 196At

RADIOACTIVITY 196At, 196Po(α); 196At(EC), (β+), (β+F), [high purity 196At beam from U(p, X), E=1.4 GeV using HRS and GPS separators with RILIS at ISOLDE-CERN facility]; measured Eα, Iα, Eγ, Iγ, αγ-coin, fission-fragment energies, (fission fragment)(fission fragment)-coin, half-lives of decays of 196At and 196Po; deduced α- and β-decay and β-delayed fission branching ratios of 196At, reduced α-decay widths, symmetric and asymmetric fission-fragment mass distributions of the daughter isotope 196Po. 192Bi; deduced levels, J, π, conversion coefficients, multipolarities, mixing ratio, configurations. Comparison with previous experimental values. 192Bi, 199,200,201At, 202Rn; observed α from daughter activity 192Bi and other contaminants.

doi: 10.1103/PhysRevC.94.034308
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2016VA01      J.Phys.(London) G43, 025102 (2016)

C.Van Beveren, A.N.Andreyev, A.E.Barzakh, T.E.Cocolios, R.P.de Groote, D.Fedorov, V.N.Fedosseev, R.Ferrer, L.Ghys, M.Huyse, U.Koster, J.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, P.L.Molkanov, T.J.Procter, E.Rapisarda, K.Sandhu, M.D.Seliverstov, P.Van Duppen, M.Venhart, M.Veselsky

α-decay study of 182, 184Tl

RADIOACTIVITY 182,184Tl(α); measured decay products, Eγ, Iγ, Eα, Iα, α-γ-coin.; deduced energy levels, J, π, branching ratios, isomeric state T1/2, α-decay scheme. Comparison with available data.

doi: 10.1088/0954-3899/43/2/025102
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2015DI04      Phys.Rev. C 91, 054321 (2015)

J.Diriken, N.Patronis, A.Andreyev, S.Antalic, V.Bildstein, A.Blazhev, I.G.Darby, H.De Witte, J.Eberth, J.Elseviers, V.N.Fedosseev, F.Flavigny, Ch.Fransen, G.Georgiev, R.Gernhauser, H.Hess, M.Huyse, J.Jolie, Th.Kroll, R.Krucken, R.Lutter, B.A.Marsh, T.Mertzimekis, D.Muecher, R.Orlandi, A.Pakou, R.Raabe, G.Randisi, P.Reiter, T.Roger, M.Seidlitz, M.Seliverstov, C.Sotty, H.Tornqvist, J.Van De Walle, P.Van Duppen, D.Voulot, N.Warr, F.Wenander, K.Wimmer

Experimental study of the 66Ni(d, p) 67Ni one-neutron transfer reaction

NUCLEAR REACTIONS 2H(66Ni, p), E=2.95 MeV/nucleon, [secondary 66Ni beam from U(p, X), E=1.4 GeV primary reaction using RILIS and REX-TRAP at ISOLDE-CERN]; measured Eπ, Ip, Eγ, Iγ, γγ(t), pγ-, pγγ-coin, isomer half-life, σ(θ) for protons using T-REX setup for charged-particles and Miniball (MB) array for γ detection. 67Ni; deduced levels, J, π, l-transfer, configurations, spectroscopic factors, asymptotic normalization constants (ANCs), single-neutron strengths. DWBA analysis of σ(θ) data. Comparison with proton single-particle strength distribution in 89Y, and with shell model calculations. Systematics of summed single-particle spectroscopic factors and C2S weighted centroid energies for 59,61,63,65,67Ni.

doi: 10.1103/PhysRevC.91.054321
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2015ES07      Phys.Rev. C 92, 044321 (2015)

M.E.Estevez Aguado, A.Algora, J.Agramunt, B.Rubio, J.L.Tain, D.Jordan, L.M.Fraile, W.Gelletly, A.Frank, M.Csatlos, L.Csige, Zs.Dombradi, A.Krasznahorkay, E.Nacher, P.Sarriguren, M.J.G.Borge, J.A.Briz, O.Tengblad, F.Molina, O.Moreno, M.Kowalska, V.N.Fedosseev, B.A.Marsh, D.V.Fedorov, P.L.Molkanov, A.N.Andreyev, M.D.Seliverstov, K.Burkard, W.Huller

Shapes of 192, 190Pb ground states from β-decay studies using the total-absorption technique

RADIOACTIVITY 190,192Pb(EC), (β+)[from U(p, X), E=1.4 GeV]; measured Eγ, Iγ, (x ray)γ-coin using total absorption spectrometer Lucrecia (TAS) at CERN-ISOLDE facility; deduced I(ϵ), I(ϵ+β+) feedings, BG(T) strength distributions, deformation for ground states. Comparison with QRPA calculations, and with previous experimental data.

doi: 10.1103/PhysRevC.92.044321
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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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2015FL01      Phys.Rev. C 91, 034310 (2015)

F.Flavigny, D.Pauwels, D.Radulov, I.J.Darby, H.De Witte, J.Diriken, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, M.Huyse, V.S.Ivanov, U.Koster, B.A.Marsh, T.Otsuka, L.Popescu, R.Raabe, M.D.Seliverstov, N.Shimizu, A.M.Sjodin, Y.Tsunoda, P.Van den Bergh, P.Van Duppen, J.Van de Walle, M.Venhart, W.B.Walters, K.Wimmer

Characterization of the low-lying 0+ AND 2+ states in 68Ni via β decay of the low-spin 68Co isomer

RADIOACTIVITY 68Co(β-), (β-n)[from 68Mn -> 68Fe -> 68Co decay chain, 68Mn from 238U(p, F), E=1 GeV]; measured Eγ, Iγ, βγ-, γγ-coin, half-life of first excited 0+ state by βγ(t) using RILIS and Miniball array at ISOLDE-CERN facility. 68Ni; deduced levels, J, π, β feedings, logft, E0 decays, delayed neutron emission probability Pn, B(E2), configuration. Comparison with previous results, and with Monte Carlo shell model (MCSM) calculations. 67,68Fe, 67Co, 68Ga, 136I(β-); detected γ rays.

NUCLEAR STRUCTURE 68Ni; calculated Potential energy surfaces in (Q0, Q2) plane for the ground state and first 2+ state. Large-scale Monte Carlo shell model calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.034310
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2015VA10      Phys.Rev. C 92, 014325 (2015)

C.Van Beveren, A.N.Andreyev, A.E.Barzakh, T.E.Cocolios, D.Fedorov, V.N.Fedosseev, R.Ferrer, M.Huyse, U.Koster, J.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, T.J.Procter, D.Radulov, E.Rapisarda, K.Sandhu, M.D.Seliverstov, P.Van Duppen, M.Venhart, M.Veselsky

Internal decay of the (10-) intruder state in 184Tl

RADIOACTIVITY 184mTl(IT), (α)[from U(p, X), E=1.4 GeV at ISOLDE-CERN facility and using RILIS]; measured Eγ, Iγ, I(x rays), γ(t), ce, half-life of (10-) isomer, 184Tl; deduced levels, J, π, isomer, internal-conversion coefficients, multipolarity, B(M2), B(E3), retardation factors for M2 and E3 transitions, configuration, intruder character of the (10-) isomer. 187m,188m,189m,190m,191m,192mBi(α); discussed systematics of α-decay parameters to daughter Tl states involving 1h9/2 and 2d3/2 proton configurations.

doi: 10.1103/PhysRevC.92.014325
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2014DI08      Phys.Lett. B 736, 533 (2014)

J.Diriken, N.Patronis, A.N.Andreyev, S.Antalic, V.Bildstein, A.Blazhev, I.G.Darby, H.De Witte, J.Eberth, J.Elseviers, V.N.Fedosseev, F.Flavigny, Ch.Fransen, G.Georgiev, R.Gernhauser, H.Hess, M.Huyse, J.Jolie, Th.Kroll, R.Krucken, R.Lutter, B.A.Marsh, T.Mertzimekis, D.Muecher, F.Nowacki, R.Orlandi, A.Pakou, R.Raabe, G.Randisi, P.Reiter, T.Roger, M.Seidlitz, M.Seliverstov, K.Sieja, C.Sotty, H.Tornqvist, J.Van De Walle, P.Van Duppen, D.Voulot, N.Warr, F.Wenander, K.Wimmer

Study of the deformation-driving νd5/2 orbital in 6728Ni39 using one-neutron transfer reactions

NUCLEAR REACTIONS 2H(66Ni, p)67Ni, E=2.95 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, σ(θ), single-particle strength. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2014.08.004
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2014GH09      Phys.Rev. C 90, 041301 (2014)

L.Ghys, A.N.Andreyev, M.Huyse, P.Van Duppen, S.Sels, B.Andel, S.Antalic, A.Barzakh, L.Capponi, T.E.Cocolios, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, F.P.Hessberger, Z.Kalaninova, U.Koster, J.F.W.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, S.Mitsuoka, P.Moller, Y.Nagame, K.Nishio, S.Ota, D.Pauwels, R.D.Page, L.Popescu, D.Radulov, M.M.Rajabali, J.Randrup, E.Rapisarda, S.Rothe, K.Sandhu, M.D.Seliverstov, A.M.Sjodin, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, Y.Wakabayashi, M.Warda

Evolution of fission-fragment mass distributions in the neutron-deficient lead region

RADIOACTIVITY 194,196At, 200,202Fr(β+F)[from U(p, X), E=1.4 GeV at CERN-ISOLDE using HRS and GPS separators]; measured mass and energy distributions of coincident fission fragments after β-delayed fission, ratio of α to β-delayed-fission decays, total kinetic energy. 196At, 200Fr; deduced β-delayed fission decay probabilities, new region of multimodal fission in the neutron-deficient lead region. 196Po; Calculated potential energy surface contour. Comparison with Finite-range liquid-drop (FRLDM) and Hartree-Fock-Bogoliubov (HFB) model calculations. Comparison with experimental results for β-delayed fission of 180Tl.

doi: 10.1103/PhysRevC.90.041301
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2014SE07      Phys.Rev. C 89, 034323 (2014)

M.D.Seliverstov, T.E.Cocolios, W.Dexters, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, J.Buscher, I.G.Darby, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, B.A.Marsh, P.L.Molkanov, R.D.Page, A.M.Sjodin, I.Stefan, P.Van Duppen, M.Venhart, S.G.Zemlyanoy

Electromagnetic moments of odd-A 193-203, 211Po isotopes

RADIOACTIVITY 193Po, 193mPo, 195Po, 195mPo, 197Po, 197mPo, 199Po, 199mPo, 201Po, 201mPo, 203Po, 203mPo, 209Po, 211Po(α)[from 238U(p, F), E=1.4 GeV followed by mass separation]; measured Eα, Eγ, hyperfine splitting parameters for low-spin ground state and high-spin Po activities using in-source resonance ionization spectroscopy technique, and Wildmill chamber at ISOLDE-CERN facility; deduced magnetic dipole and spectroscopic electric quadrupole moments. Comparison with particle-plus-rotor model calculations.

NUCLEAR MOMENTS 193,193m,195,195m,197,197m,199,199m,201,201m,203,203m,209,211Po; measured hyperfine splitting constants; magnetic dipole moments, and spectroscopic electric quadrupole moments, quadrupole deformation parameters using online mass separator and in-source resonance ionization spectroscopy technique at ISOLDE-CERN facility. Comparison with predictions of particle-plus-rotor model calculations, and with previous experimental results. Discussed configuration mixing. Systematics of magnetic moments for 3/2- and 13/2+ states in 187,189,191,193,195Pt, 185,187,189,191,193,195Hg, 187,189,191,193,195,197,199Pb, 193,195,197,199,201,203,205,207Po.

doi: 10.1103/PhysRevC.89.034323
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2013AN10      Phys.Rev. C 87, 054311 (2013)

A.N.Andreyev, V.Liberati, S.Antalic, D.Ackermann, A.Barzakh, N.Bree, T.E.Cocolios, J.Diriken, J.Elseviers, D.Fedorov, V.N.Fedosseev, D.Fink, S.Franchoo, S.Heinz, F.P.Hessberger, S.Hofmann, M.Huyse, O.Ivanov, J.Khuyagbaatar, B.Kindler, U.Koster, J.F.W.Lane, B.Lommel, R.Mann, B.Marsh, P.Molkanov, K.Nishio, R.D.Page, N.Patronis, D.Pauwels, D.Radulov, S.Saro, M.Seliverstov, M.Sjodin, I.Tsekhanovich, P.Van den Bergh, P.Van Duppen, M.Venhart, M.Veselsky

α-decay spectroscopy of the chain 179Tlg175Aug171Irg167Rem

RADIOACTIVITY 179Tl(α)[from U(p, F), E=1.4 GeV and 144Sm(40Ca, 4np), E=232 MeV]; 175Au, 171Ir(α)[from 179Tl(α) decay]; measured Eα, Iα, Eγ, (recoil)α-, αα-coin, T1/2, α-branching ratios, yields at ISOLDE-CERN and SHIP-GSI facilities. 179Tl, 175Au, 171Ir, 167Re; deduced levels, J, π. 172,173,175Pt, 176,177Hg, 179Au(α); measured Eα. Comparison with earlier experimental results.

doi: 10.1103/PhysRevC.87.054311
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2013EL08      Phys.Rev. C 88, 044321 (2013); Erratum Phys.Rev. C 102, 019908 (2020)

J.Elseviers, A.N.Andreyev, M.Huyse, P.Van Duppen, S.Antalic, A.Barzakh, N.Bree, T.E.Cocolios, V.F.Comas, J.Diriken, D.Fedorov, V.N.Fedosseev, S.Franchoo, L.Ghys, J.A.Heredia, O.Ivanov, U.Koster, B.A.Marsh, K.Nishio, R.D.Page, N.Patronis, M.D.Seliverstov, I.Tsekhanovich, P.Van den Bergh, J.Van De Walle, M.Venhart, S.Vermote, M.Veselsky, C.Wagemans

β-delayed fission of 180Tl

RADIOACTIVITY 180Tl(EC), (β+), (SF)[from U(p, X), E=1.4 GeV]; measured Eα, Eβ, Eγ, fission fragment spectra, (fission fragment)(fission fragment)-coin, (fission fragment)γ-coin, mass and energy distribution of fission fragments, total kinetic energy of fission events, β-delayed fission probability, fission yield, half-life of 180Tl using RILIS source and HRS separator at ISOLDE-CERN facility. 180Hg; deduced asymmetric fission of excited states populated in decay of 180Tl. Viola systematics of total kinetic energies vs fissility parameter for 180Hg and heavier actinides.

doi: 10.1103/PhysRevC.88.044321
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2013LI49      Phys.Rev. C 88, 044322 (2013)

V.Liberati, A.N.Andreyev, S.Antalic, A.Barzakh, T.E.Cocolios, J.Elseviers, D.Fedorov, V.N.Fedoseev, M.Huyse, D.T.Joss, Z.Kalaninova, U.Koster, J.F.W.Lane, B.Marsh, D.Mengoni, P.Molkanov, K.Nishio, R.D.Page, N.Patronis, D.Pauwels, D.Radulov, M.Seliverstov, M.Sjodin, I.Tsekhanovich, P.Van den Bergh, P.Van Duppen, M.Venhart, M.Veselsky

β-delayed fission and α decay of 178Tl

RADIOACTIVITY 178Tl(α), (EC), (β+), (SF)[from U(p, X), E=1.4 GeV]; measured Eα, Iα, Eγ, x rays, αγ-coin, αα-correlations, β-delayed fission fragment spectra, half-life of 178Tl using RILIS source, HRS and GPS separators at ISOLDE-CERN facility. 174Au; deduced levels, α reduced widths, multipolarity, conversion coefficient. 178Tl; deduced J, π and Q(α) of g.s., α-, EC+β+, β-delayed fission probability, total kinetic energy of fission events. 178Hg; deduced asymmetric fission of excited states populated in decay of 178Tl, comparison with asymmetric fission of 180Hg from 180Tl decay. Viola systematics of total kinetic energies vs fissility parameter for 178,180Hg and heavier actinides.

doi: 10.1103/PhysRevC.88.044322
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2013RA17      Phys.Rev. C 88, 014307 (2013)

D.Radulov, C.J.Chiara, I.G.Darby, H.De Witte, J.Diriken, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, M.Huyse, U.Koster, B.A.Marsh, D.Pauwels, L.Popescu, M.D.Seliverstov, A.M.Sjodin, P.Van den Bergh, P.Van Duppen, M.Venhart, W.B.Walters, K.Wimmer

β decay of 61Mn to levels in 61Fe

RADIOACTIVITY 61Mn(β-)[from 238U(p, F), E=1.4 GeV]; measured Eγ, Iγ, γγ-, βγ-coin, βγ(t), T1/2 of 61Mn g.s., upper limit of P(n) to first 2+ state in 60Fe at ISOLDE, CERN facility. Laser ionization and mass separation of 61Mn beam. 61Fe; deduced levels, J, π, β feedings, logft. Comparison with shell-model calculations. Systematics of ground and first excited states in 24,26,28,30,32,34,36Mn.

NUCLEAR STRUCTURE 59,61Fe; calculated levels J, π using shell model with GXPF1A and pf(g0) interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.014307
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2013SA43      Eur.Phys.J. A 49, 109 (2013)

J.Sauvage, B.Roussiere, J.Genevey, S.Franchoo, A.N.Andreyev, N.Barre, A.Ben Braham, C.Bourgeois, J.-F.Clavelin, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, L.M.Fraile, X.Grave, G.Huber, M.Huyse, P.Kilcher, U.Koster, P.Kunz, S.R.Lesher, B.A.Marsh, I.Mukha, J.Oms, M.G.Porquet, M.Seliverstov, I.Stefanescu, K.Van de Vel, P.Van Duppen, YU.M.Volkov, A.Wojtasiewicz

Decay of 185Tl, 185m+gHg, 189m+gPb and energy location of the 13/2+ isomeric states in 185Hg, 189Pb, 193Po and 197Rn

RADIOACTIVITY 185Hg(β+), (EC), (IT);185Tl, 189Pb(β+), (EC)[from bombarding thick UCx target by 1.4 GeV protons]; measured Eγ, Iγ(t), X-rays, γγ-coin, (time)γ-coin, Xγ-coin using Ge(HP) detectors with COMET-NARVAL system, α-decay of the decay products, Eα, Iα, αγ-coin. 183,185,187,189Hg, 187,189Pb, 191,193,195Po, 195,197,199Rn deduced partial level scheme, J, π, γ transitions, μ. 185Hg, 189Pb, 193Po, 197Rn deduced 13/2+ isomeric states.

doi: 10.1140/epja/i2013-13109-5
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2013SE03      Phys.Lett. B 719, 362 (2013)

M.D.Seliverstov, T.E.Cocolios, W.Dexters, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, J.Buscher, I.G.Darby, D.V.Fedorov, V.N.Fedoseyev, K.T.Flanagan, S.Franchoo, S.Fritzsche, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, B.A.Marsh, P.L.Molkanov, R.D.Page, A.M.Sjodin, I.Stefan, J.Van de Walle, P.Van Duppen, M.Venhart, S.G.Zemlyanoy

Charge radii of odd-A 191-211Po isotopes

NUCLEAR MOMENTS 191,193,195,197,199,201,203,209,211Po; measured optical spectra, isotope shifts, Eα, Iα; deduced mean square charge radii.

doi: 10.1016/j.physletb.2013.01.043
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2012CO24      J.Phys.:Conf.Ser. 381, 012072 (2012)

T.E.Cocolios, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, J.Buscher, I.G.Darby, W.Dexters, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, S.Fritzsche, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, E.Mane, B.A.Marsh, P.L.Molkanov, R.D.Page, M.D.Seliverstov, A.M.Sjodin, I.Stefan, J.Van de Walle, P.Van Duppen, M.Venhart, S.G.Zemlyanoy

Early onset of deformation in the neutron-deficient polonium isotopes

ATOMIC PHYSICS 191,192,193,194,195,196,197,198,199,200,201,202,203,204,206,208,209,210,211,216,218Po[from high-energy proton-induced spallation of 238U]; measured Eα, Iα, Eβ, Iβ, Eγ, Ιg; deduced even-A charge radius. 199g,199mPo deduced hyperfine spectra, γ transition energy, intensity. Compared with earlier papers.

doi: 10.1088/1742-6596/381/1/012072
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2012PA39      Phys.Rev. C 86, 064318 (2012)

D.Pauwels, D.Radulov, W.B.Walters, I.G.Darby, H.De Witte, J.Diriken, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, M.Huyse, U.Koster, B.A.Marsh, L.Popescu, M.D.Seliverstov, A.M.Sjodin, P.Van den Bergh, J.Van de Walle, P.Van Duppen, M.Venhart, K.Wimmer

Gamow-Teller decay population of 64Ni levels in the decay of 1+ 64Co

RADIOACTIVITY 64Co(β-)[from U(p, F), E=1.4 GeV]; measured Eγ, Iγ, γγ-coin, Eβ using RILIS laser system and MINIBALL γ-detector clusters at CERN-ISOLDE facility. 64Ni; deduced levels, J, π, Iβ, logft, configurations, possible proton-intruder levels. 64Mn(β-n); measured Eγ, Iγ; deduced beta-delayed neutron probability Pn. Comparison with previous experimental studies. 63,64Fe, 64Ga, 128mIn(β-); observed Eγ.

doi: 10.1103/PhysRevC.86.064318
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2011CO01      Phys.Rev.Lett. 106, 052503 (2011)

T.E.Cocolios, W.Dexters, M.D.Seliverstov, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, J.Buscher, I.G.Darby, D.V.Fedorov, V.N.Fedosseyev, K.T.Flanagan, S.Franchoo, S.Fritzsche, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, E.Mane, B.A.Marsh, P.L.Molkanov, R.D.Page, A.M.Sjoedin, I.Stefan, J.Van de Walle, P.Van Duppen, M.Venhart, S.G.Zemlyanoy, M.Bender, P.-H.Heenen

Early Onset of Ground State Deformation in Neutron Deficient Polonium Isotopes

NUCLEAR REACTIONS U(p, X)192Po/194Po/196Po/198Po/200Po/202Po/204Po/206Po/208Po/210Po/216Po/218Po, E=1.4 GeV; measured reaction products, Ee, Ie, Eα, Iα; deduced isotope shifts, mean-square charge radii. Comparison with systematics and FRDM calculations.

doi: 10.1103/PhysRevLett.106.052503
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2011EL07      Phys.Rev. C 84, 034307 (2011)

J.Elseviers, A.N.Andreyev, S.Antalic, A.Barzakh, N.Bree, T.E.Cocolios, V.F.Comas, J.Diriken, D.Fedorov, V.N.Fedosseyev, S.Franchoo, J.A.Heredia, M.Huyse, O.Ivanov, U.Koster, B.A.Marsh, R.D.Page, N.Patronis, M.Seliverstov, I.Tsekhanovich, P.Van den Bergh, J.Van De Walle, P.Van Duppen, M.Venhart, S.Vermote, M.Veselsky, C.Wagemans

Shape coexistence in 180Hg studied through the β decay of 180Tl

RADIOACTIVITY 180Tl(β+), (EC)[from U(p, X), E=1.4 GeV; measured electron-, positron-, α-, and fission-fragment spectra, Eγ, Iγ, γγ-, γ(ce)-coin, half-life at CERN-ISOLDE facility, resonant laser-ionization technique for source extraction. 180Tl; measured half-life of g.s.; deduced branching ratios, J, π of g.s. 180Hg; deduced levels, J, π, E0 transitions, multipolarity. Comparison with level schemes of 182,184,196Hg. Systematics of level energies of even A=174-206 Hg nuclei up to 12+.

doi: 10.1103/PhysRevC.84.034307
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2011KO36      Phys.Rev. C 84, 034320 (2011)

U.Koster, N.J.Stone, K.T.Flanagan, J.Rikovska Stone, V.N.Fedosseev, K.L.Kratz, B.A.Marsh, T.Materna, L.Mathieu, P.L.Molkanov, M.D.Seliverstov, O.Serot, A.M.Sjodin, Yu.M.Volkov

In-source laser spectroscopy of 75, 77, 78Cu: Direct evidence for a change in the quasiparticle energy sequence in 75, 77Cu and an absence of longer-lived isomers in 78Cu

NUCLEAR MOMENTS 59,63,75,77,78Cu; measured hyperfine structure factors, isotope shifts using in-source laser spectroscopy technique at ISOLDE-CERN facility; deduced magnetic dipole moments and nuclear spins of 75,77,78Cu. Systematics of magnetic dipole moments of A=57-78 copper isotopes. Comparisons with shell-model calculations. Observed collapsed hyperfine structure for 78Cu. No evidence of long-lived isomers in 77,78Cu from observed hyperfine structures.

doi: 10.1103/PhysRevC.84.034320
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2010AN13      Phys.Rev.Lett. 105, 252502 (2010)

A.N.Andreyev, J.Elseviers, M.Huyse, P.Van Duppen, S.Antalic, A.Barzakh, N.Bree, T.E.Cocolios, V.F.Comas, J.Diriken, D.Fedorov, V.Fedosseev, S.Franchoo, J.A.Heredia, O.Ivanov, U.Koster, B.A.Marsh, P.Van den Bergh, J.Van De Walle, K.Nishio, R.D.Page, N.Patronis, M.Seliverstov, I.Tsekhanovich, M.Venhart, S.Vermote, M.Veselsky, C.Wagemans, T.Ichikawa, A.Iwamoto, P.Moller, A.J.Sierk

New Type of Asymmetric Fission in Proton-Rich Nuclei

RADIOACTIVITY 180Tl(α), (β+), (EC) [from U(p, X), E=1.4 GeV]; measured fission fragments, Eα, Iα, X-rays. 180Hg; deduced asymetric fission fragment distribution, branching ratio for β-delayed fission.

doi: 10.1103/PhysRevLett.105.252502
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2010CO13      J.Phys.(London) G37, 125103 (2010)

T.E.Cocolios, A.N.Andreyev, S.Antalic, A.Barzakh, B.Bastin, J.Buscher, I.G.Darby, W.Dexters, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, E.Mane, B.A.Marsh, P.Molkanov, R.D.Page, M.D.Seliverstov, A.M.Sjoedin, I.Stefan, J.Van de Walle, P.Van Duppen, M.Venhart, S.Zemlyanoy

Structure of 191Pb from α- and β-decay spectroscopy

RADIOACTIVITY 191,193Bi(EC), 195Po(α); measured Eα, Iα, Eγ, Iγ; deduced branching ratios, α-decay fine structures, γ-ray energies and intensities, J, π, ICC.

COMPILATION 191,193,195,197,199,201,203,205,207Pb; compiled experimental nuclear structure data.

doi: 10.1088/0954-3899/37/12/125103
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2010DI14      Phys.Rev. C 82, 064309 (2010)

J.Diriken, I.Stefanescu, D.Balabanski, N.Blasi, A.Blazhev, N.Bree, J.Cederkall, T.E.Cocolios, T.Davinson, J.Eberth, A.Ekstrom, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, G.Georgiev, K.Gladnishki, M.Huyse, O.V.Ivanov, V.S.Ivanov, J.Iwanicki, J.Jolie, T.Konstantinopoulos, Th.Kroll, R.Krucken, U.Koster, A.Lagoyannis, G.Lo Bianco, P.Maierbeck, B.A.Marsh, P.Napiorkowski, N.Patronis, D.Pauwels, P.Reiter, M.Seliverstov, G.Sletten, J.Van de Walle, P.Van Duppen, D.Voulot, W.B.Walters, N.Warr, F.Wenander, K.Wrzosek

Coulomb excitation of 73Ga

NUCLEAR REACTIONS 104Pd(71Ga, 71Ga'), 120Sn(73Ga, 73Ga'), E=2.95 MeV/nucleon, [secondary 71,73Ga beams from U(p, X), E=1 GeV]; measured Eγ, Iγ, (particle)γ-, γγ-coin at REX-ISOLDE. 71Ga, 73Ga; deduced levels, J, π, B(E2). Comparison with level systematics of 63,65,67,69,71,73,75,77Ga. Collectivity due to g9/2 neutron orbital.

RADIOACTIVITY 73Zn(β-)[from U(p, X), E=1 GeV]; measured Eγ.

doi: 10.1103/PhysRevC.82.064309
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2010EL11      Phys.Lett. B 693, 426 (2010)

S.Eliseev, Ch.Bohm, D.Beck, K.Blaum, M.Breitenfeldt, V.N.Fedosseev, S.George, F.Herfurth, A.Herlert, H.-J.Kluge, M.Kowalska, D.Lunney, S.Naimi, D.Neidherr, Yu.N.Novikov, M.Rosenbusch, L.Schweikhard, S.Schwarz, M.Seliverstov, K.Zuber

Direct mass measurements of 194Hg and 194Au: A new route to the neutrino mass determination?

ATOMIC MASSES 194Au, 194Hg; measured cyclotron frequency ratio; deduced mass excesses, Q-value of the orbital electron capture. Implications for β-decay anti-neutrino mass measurements.

doi: 10.1016/j.physletb.2010.08.071
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2009FL03      Phys.Rev.Lett. 103, 142501 (2009)

K.T.Flanagan, P.Vingerhoets, M.Avgoulea, J.Billowes, M.L.Bissell, K.Blaum, B.Cheal, M.De Rydt, V.N.Fedosseev, D.H.Forest, Ch.Geppert, U.Koster, M.Kowalska, J.Kramer, K.L.Kratz, A.Krieger, E.Mane, B.A.Marsh, T.Materna, L.Mathieu, P.L.Molkanov, R.Neugart, G.Neyens, W.Nortershauser, M.D.Seliverstov, O.Serot, M.Schug, M.A.Sjoedin, J.R.Stone, N.J.Stone, H.H.Stroke, G.Tungate, D.T.Yordanov, Yu.M.Volkov

Nuclear Spins and Magnetic Moments of 71, 73, 75Cu: Inversion of π2p3/2 and π1f5/2 Levels in 75Cu

NUCLEAR MOMENTS 71,73,75Cu; measured hfs spectra; deduced ground-state spins, magnetic moments, hyperfine parameters, shell inversion. Comparison with large-scale shell-model calculation.

doi: 10.1103/PhysRevLett.103.142501
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2009SA09      Eur.Phys.J. A 39, 33 (2009)

J.Sauvage, J.Genevey, B.Roussiere, S.Franchoo, A.N.Andreyev, N.Barre, J.-F.Clavelin, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, L.M.Fraile, X.Grave, G.Huber, M.Huyse, H.B.Jeppesen, U.Koster, P.Kunz, S.R.Lesher, B.A.Marsh, I.Mukha, J.Oms, M.Seliverstov, I.Stefanescu, K.Van de Vel, J.Van de Walle, P.Van Duppen, Yu.M.Volkov

Nuclear structure of 189Tl states studied via β+ /EC decay and laser spectroscopy of 189m+gPb

RADIOACTIVITY 189Pb(β+), (EC) [from 238U(p, X), E=1.4 GeV]; measured prompt and delayed Eγ, Iγ, γγ-coin; deduced T1/2, log ft; calculated nuclear deformation. 189Tl deduced levels, J, π. In-source laser spectroscopy.

doi: 10.1140/epja/i2008-10693-3
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2009SE13      Eur.Phys.J. A 41, 315 (2009)

M.D.Seliverstov, A.N.Andreyev, N.Barre, A.E.Barzakh, S.Dean, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, L.M.Fraile, S.Franchoo, J.Genevey, G.Huber, M.Huyse, U.Koster, P.Kunz, S.R.Lesher, B.A.Marsh, I.Mukha, B.Roussiere, J.Sauvage, I.Stefanescu, K.Van de Vel, P.Van Duppen, Yu.M.Volkov

Charge radii and magnetic moments of odd- A 183-189Pb isotopes

NUCLEAR MOMENTS 182,183,184,185,186,187,188,189,190Pb [from 238U(p, X), E=1, 4 GeV online mass separator using the in-source resonance ionization spectroscopy technique]; measured hfs spectra; deduced μ, hyperfine coupling constants, charge radii. Comparison with other data.

doi: 10.1140/epja/i2009-10817-3
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2009VA01      Phys.Rev. C 79, 014309 (2009)

J.Van de Walle, F.Aksouh, T.Behrens, V.Bildstein, A.Blazhev, J.Cederkall, E.Clement, T.E.Cocolios, T.Davinson, P.Delahaye, J.Eberth, A.Ekstrom, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, R.Gernhauser, G.Georgiev, D.Habs, K.Heyde, G.Huber, M.Huyse, F.Ibrahim, O.Ivanov, J.Iwanicki, J.Jolie, O.Kester, U.Koster, T.Kroll, R.Krucken, M.Lauer, A.F.Lisetskiy, R.Lutter, B.A.Marsh, P.Mayet, O.Niedermaier, M.Pantea, R.Raabe, P.Reiter, M.Sawicka, H.Scheit, G.Schrieder, D.Schwalm, M.D.Seliverstov, T.Sieber, G.Sletten, N.Smirnova, M.Stanoiu, I.Stefanescu, J.-C.Thomas, J.J.Valiente-Dobon, P.Van Duppen, D.Verney, D.Voulot, N.Warr, D.Weisshaar, F.Wenander, B.H.Wolf, M.Zielinska

Low-energy Coulomb excitation of neutron-rich zinc isotopes

NUCLEAR REACTIONS 120Sn(74Zn, 74Zn'), E=2.87 MeV/nucleon; 120Sn(76Zn, 76Zn'), E=2.83 MeV/nucleon; 108Pd(78ZN, 78Zn'), E=2.87 MeV/nucleon; 108Pd(80Zn, 80Zn'), E=2.79 MeV/nucleon; measured Eγ, Iγ, charged particle spectra, (particle)-γ coin, measured half-lives of first 2+ state, B(E2). 74,76,78,80Zn, 80Ga, 80Rb, 108Pd, 120Sn; deduced levels. Fe, Ni, Zn, Ge, Se; systematics of B(E2) values. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.79.014309
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2008ST04      Phys.Rev.Lett. 100, 112502 (2008)

I.Stefanescu, G.Georgiev, D.L.Balabanski, N.Blasi, A.Blazhev, N.Bree, J.Cederkall, T.E.Cocolios, T.Davinson, J.Diriken, J.Eberth, A.Ekstrom, D.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, K.Gladnishki, M.Huyse, O.Ivanov, V.Ivanov, J.Iwanicki, J.Jolie, T.Konstantinopoulos, Th.Kroll, R.Krucken, U.Koster, A.Lagoyannis, G.Lo Bianco, P.Maierbeck, B.A.Marsh, P.Napiorkowski, N.Patronis, D.Pauwels, G.Rainovski, P.Reiter, K.Riisager, M.Seliverstov, G.Sletten, J.Van de Walle, P.Van Duppen, D.Voulot, N.Warr, F.Wenander, K.Wrzosek

Interplay between Single-Particle and Collective Effects in the Odd-A Cu Isotopes beyond N = 40

NUCLEAR REACTIONS 104Pd(67Cu, 67Cu'), (69Cu, 69Cu'), (71Cu, 71Cu'), E=2.99 MeV/nucleon; 120Sn(71Cu, 71Cu'), (73Cu, 73Cu'), E=2.99 MeV/nucleon; measured Eγ, Iγ following coulomb excitation. 67,69,71,73Cu; deduced level energies, B(E2).

doi: 10.1103/PhysRevLett.100.112502
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2007DE09      Phys.Rev.Lett. 98, 112502 (2007)

H.De Witte, A.N.Andreyev, N.Barre, M.Bender, T.E.Cocolios, S.Dean, D.Fedorov, V.N.Fedoseyev, L.M.Fraile, S.Franchoo, V.Hellemans, P.H.Heenen, K.Heyde, G.Huber, M.Huyse, H.Jeppesen, U.Koster, P.Kunze, S.R.Lesher, B.A.Marsh, I.Mukha, B.Roussiere, J.Sauvage, M.Seliverstov, I.Stefanescu, E.Tengborn, K.Van de Vel, J.Van de Walle, P.Van Duppen, Yu.Volkov

Nuclear Charge Radii of Neutron-Deficient Lead Isotopes Beyond N = 104 Midshell Investigated by In-Source Laser Spectroscopy

ATOMIC PHYSICS 182,183,183m,184,185,185m,186,187,187m,188,189,189m,190Pb; measured isotope shifts; deduced charge radii.

doi: 10.1103/PhysRevLett.98.112502
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2007VA20      Phys.Rev.Lett. 99, 142501 (2007)

J.Van de Walle, F.Aksouh, F.Ames, T.Behrens, V.Bildstein, A.Blazhev, J.Cederkall, E.Clement, T.E.Cocolios, T.Davinson, P.Delahaye, J.Eberth, A.Ekstrom, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, R.Gernhauser, G.Georgiev, D.Habs, K.Heyde, G.Huber, M.Huyse, F.Ibrahim, O.Ivanov, J.Iwanicki, J.Jolie, O.Kester, U.Koster, T.Kroll, R.Krucken, M.Lauer, A.F.Lisetskiy, R.Lutter, B.A.Marsh, P.Mayet, O.Niedermaier, T.Nilsson, M.Pantea, O.Perru, R.Raabe, P.Reiter, M.Sawicka, H.Scheit, G.Schrieder, D.Schwalm, M.D.Seliverstov, T.Sieber, G.Sletten, N.Smirnova, M.Stanoiu, I.Stefanescu, J.-C.Thomas, J.J.Valiente-Dobon, P.Van Duppen, D.Verney, D.Voulot, N.Warr, D.Weisshaar, F.Wenander, B.H.Wolf, M.Zielinska

Coulomb Excitation of Neutron-Rich Zn Isotopes: First Observation of the 2+1 State in 80Zn

NUCLEAR REACTIONS 108Pd, 120Sn(74Zn, 74Zn'), (76Zn, 76Zn'), (78Zn, 78Zn'), (80Zn, 80Zn'), E=2.79-2.87 MeV/nucleon; measured Eγ, Iγ. 74,76,78,80Zn deduced B(E2).

doi: 10.1103/PhysRevLett.99.142501
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2006SE18      Hyperfine Interactions 171, 225 (2006)

M.Seliverstov, A.Andreyev, N.Barre, H.De Witte, D.Fedorov, V.Fedoseyev, S.Franchoo, J.Genevey, G.Huber, M.Huyse, U.Koster, P.Kunz, S.Lesher, B.Marsh, B.Roussiere, J.Sauvage, P.Van Duppen, Yu.Volkov

Study of the neutron deficient 182-190Pb isotopes by simultaneous atomic- and nuclear-spectroscopy

NUCLEAR MOMENTS 182,183,184,185,186,187,188,189,190Pb; measured hfs, isotope shifts; deduced charge radii. Resonance ionization spectroscopy.

doi: 10.1007/s10751-006-9486-z
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2006SI40      Hyperfine Interactions 171, 173 (2006)

R.Sifi, F.Le Blanc, N.Barre, L.Cabaret, J.Crawford, M.Ducourtieux, S.Essabaa, J.Genevey, G.Huber, M.Kowalska, C.Lau, J.K.P.Lee, G.Le Scornet, J.Oms, J.Pinard, B.Roussiere, J.Sauvage, M.Seliverstov, H.Stroke, and the ISOLDE Collaboration

Laser spectroscopy measurements of neutron-rich tellurium isotopes by COMPLIS

NUCLEAR MOMENTS 120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136Te; measured hfs, isotope shifts; deduced μ, quadrupole moments, radii. Laser spectroscopy, comparison with model predictions.

doi: 10.1007/s10751-006-9505-0
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2004AN03      Eur.Phys.J. A 19, 341 (2004)

A.Andrighetto, A.E.Barzakh, D.V.Fedorov, V.S.Ivanov, G.Lhersonneau, F.V.Moroz, S.Yu.Orlov, V.N.Panteleev, M.D.Seliverstov, I.M.Strachnov, L.Stroe, L.B.Tecchio, Yu.M.Volkov, X.F.Wang

Proton- and neutron-induced fission on uranium carbide target

NUCLEAR REACTIONS 238U(p, F), E=1 GeV; 238U(n, F), E=fast; measured fission product isotopic yields.

doi: 10.1140/epja/i2003-10138-7
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2003AN13      Nucl.Instrum.Methods Phys.Res. B204, 267 (2003)

A.Andrighetto, A.E.Barzakh, D.V.Fedorov, V.S.Ivanov, F.V.Moroz, S.Yu.Orlov, V.N.Panteleev, M.D.Seliverstov, I.M.Strachnov, L.Stroe, L.Tecchio, Yu.M.Volkov

Production of neutron rich nuclides from uranium carbide targets of different density

NUCLEAR REACTIONS U(p, X), E=1 GeV; measured fragment yields. Uranium carbide target.

doi: 10.1016/S0168-583X(02)01923-7
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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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2003KO26      Nucl.Instrum.Methods Phys.Res. B204, 347 (2003)

U.Koster, V.N.Fedoseyev, A.N.Andreyev, U.C.Bergmann, R.Catherall, J.Cederkall, M.Dietrich, H.De Witte, D.V.Fedorov, L.Fraile, S.Franchoo, H.Fynbo, U.Georg, T.Giles, M.Gorska, M.Hannawald, M.Huyse, A.Joinet, O.C.Jonsson, K.L.Kratz, K.Kruglov, Ch.Lau, J.Lettry, V.I.Mishin, M.Oinonen, K.Partes, K.Perajarvi, B.Pfeiffer, H.L.Ravn, M.D.Seliverstov, P.Thirolf, K.Van de Vel, P.Van Duppen, J.Van Roosbroeck, L.Weissman, and the IS365/IS387/IS393/ISOLDE Collaborations

On-line yields obtained with the ISOLDE RILIS

doi: 10.1016/S0168-583X(02)01956-0
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2002PA31      Nucl.Phys. A701, 470c (2002)

V.N.Panteleev, A.E.Barzakh, D.V.Fedorov, F.V.Moroz, S.Yu.Orlov, A.G.Poljakov, M.D.Seliverstov, Yu.M.Volkov

Development of High Temperature Targets at IRIS Facility

NUCLEAR REACTIONS C, Ta, W(p, X)6Li/7Li, E not given; C, U(p, X)89Rb/90Rb/91Rb/92Rb/93Rb/94Rb/95Rb/143Cs/144Cs/145Cs/146Cs/147Cs/148Cs, E not given; C, Nb(p, X)75Rb/77Rb/80Rb, E not given; measured yields.

doi: 10.1016/S0375-9474(01)01629-3
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2002WE03      Phys.Rev. C65, 024315 (2002)

L.Weissman, U.Koster, R.Catherall, S.Franchoo, U.Georg, O.Jonsson, V.N.Fedoseyev, V.I.Mishin, M.D.Seliverstov, J.Van Roosbroeck, S.Gheysen, M.Huyse, K.Kruglov, G.Neyens, P.Van Duppen, and the IS365 and ISOLDE Collaborations

Magnetic Moments of 68Cug, m and 70Cug, m1, m2 Nuclei Measured by In-Source Laser Spectroscopy

NUCLEAR MOMENTS 68,70Cu; measured hfs; deduced μ for ground and metastable states. 68,70Cu deduced levels J, π, configurations. Laser spectroscopy.

RADIOACTIVITY 68,68m,70,70mCu(β-); measured Eγ, Iγ.

doi: 10.1103/PhysRevC.65.024315
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2002WE07      Phys.Rev. C65, 044321 (2002)

L.Weissman, J.Cederkall, J.Aysto, H.Fynbo, L.Fraile, V.Fedoseyev, S.Franchoo, A.Jokinen, U.Koster, G.Martinez-Pinedo, T.Nilsson, M.Oinonen, K.Perajarvi, M.D.Seliverstov, and the ISOLDE Collaboration

β+ Decay of 61Ga

RADIOACTIVITY 61Ga(β+) [from Zr(p, X)]; measured Eγ, Iγ, βγ-coin, T1/2, Q(EC); deduced branching ratios, log ft. 61Zn deduced β-feeding intensities. Mass separator.

doi: 10.1103/PhysRevC.65.044321
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2000BA16      Phys.Rev. C61, 034304 (2000)

A.E.Barzakh, I.Ya.Chubukov, D.V.Fedorov, V.N.Panteleev, M.D.Seliverstov, Yu.M.Volkov

Mean Square Charge Radii of the Neutron-Deficient Rare-Earth Isotopes in the Region of the Nuclear Shell N = 82 Measured by the Laser Ion Source Spectroscopy Technique

NUCLEAR MOMENTS 155Yb, 153,154Tm; measured hfs, isotope shifts, μ, quadrupole moments, charge radii. Resonance ionization spectroscopy, new background supression method.

doi: 10.1103/PhysRevC.61.034304
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2000KO70      Hyperfine Interactions 127, 417 (2000)

U.Koster, R.Catherall, V.N.Fedoseyev, S.Franchoo, U.Georg, M.Huyse, K.Kruglov, J.Lettry, V.I.Mishin, M.Oinonen, H.Ravn, M.D.Seliverstov, H.Simon, P.Van Duppen, J.Van Roosbroeck, L.Weissman, and the IS365 and ISOLDE Collaborations

Isomer separation and measurement of nuclear moments with the ISOLDE RILIS

NUCLEAR MOMENTS 68,68mCu; measured hfs. Isomer separation.

doi: 10.1023/A:1012661532704
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2000SE22      Hyperfine Interactions 127, 425 (2000)

M.D.Seliverstov, A.E.Barzakh, I.Ya.Chubukov, D.V.Fedorov, V.N.Panteleev, Yu.M.Volkov

Application of the laser ion source for isotope shift and hyperfine structure investigation

NUCLEAR MOMENTS 153,154Tm, 155Yb; measured hfs, isotope shifts; deduced radii, μ, quadrupole moments. Resonance ionization spectroscopy.

doi: 10.1023/A:1012665600844
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2000YE03      Hyperfine Interactions 127, 91 (2000)

G.Yeandle, J.Billowes, P.Campbell, P.Dendooven, K.Perajarvi, M.D.Seliverstov, G.Tungate, J.Aysto

Resonance ionization spectroscopy of radioisotopes at the IGISOL facility, JYFL

doi: 10.1023/A:1012606625918
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1998BA08      Eur.Phys.J. A 1, 3 (1998)

A.E.Barzakh, I.Ya.Chubukov, D.V.Fedorov, F.V.Moroz, V.N.Panteleev, M.D.Seliverstov, Y.M.Volkov

Isotope Shift and Hyperfine Structure Measurements for 155Yb by Laser Ion Source Technique

NUCLEAR MOMENTS 155Yb; measured hfs, isotope shift, charge radius. Resonance ionization spectroscopy, laser ion source. Nearby nuclei compared.

doi: 10.1007/s100500050023
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Note: The following list of authors and aliases matches the search parameter M.Seliverstov: , M.D.SELIVERSTOV