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NSR database version of May 24, 2024.

Search: Author = A.Kanellakopoulos

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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
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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
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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
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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
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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
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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
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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
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2020HA38      Phys.Rev.X 10, 041061 (2020)

R.D.Harding, S.Pallada, J.Croese, A.Antusek, M.Baranowski, M.L.Bissell, L.Cerato, K.M.Dziubinska-Kuhn, W.Gins, F.P.Gustafsson, A.Javaji, R.B.Jolivet, A.Kanellakopoulos, B.Karg, M.Kempka, V.Kocman, M.Kozak, K.Kulesz, M.Madurga Flores, G.Neyens, R.Pietrzyk, J.Plavec, M.Pomorski, A.Skrzypczak, P.Wagenknecht, F.Wienholtz, J.Wolak, Z.Xu, D.Zakoucky, M.Kowalska

Magnetic Moments of Short-Lived Nuclei with Part-per-Million Accuracy: Toward Novel Applications of β-Detected NMR in Physics, Chemistry, and Biology

NUCLEAR MOMENTS 23,26Na; measured Larmor frequencies; deduced nuclear magnetic dipole moments with part-per-million (ppm) accuracy. Comparison with available data.

doi: 10.1103/PhysRevX.10.041061
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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
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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
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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
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2020YO07      Commun. Phys. 3, 107 (2020)

D.T.Yordanov, L.V.Rodriguez, D.L.Balabanski, J.Bieron, M.L.Bissell, K.Blaum, B.Cheal, J.Ekman, G.Gaigalas, R.F.G.Ruiz, G.Georgiev, W.Gins, M.R.Godefroid, C.Gorges, Z.Harman, H.Heylen, P.Jonsson, A.Kanellakopoulos, S.Kaufmann, C.H.Keitel, V.Lagaki, S.Lechner, B.Maass, S.Malbrunot-Ettenauer, W.Nazarewicz, R.Neugart, G.Neyens, W.Nortershauser, N.S.Oreshkina, A.Papoulia, P.Pyykko, P.-G.Reinhard, S.Sailer, R.Sanchez, S.Schiffmann, S.Schmidt, L.Wehner, C.Wraith, L.Xie, Z.Xu, X.Yang

Structural trends in atomic nuclei from laser spectroscopy of tin

NUCLEAR MOMENTS 109,115,117,119,121,123,125,127,129,131Sn; measured frequency scales relative to the fine-structure splittings in the transitions; deduced mean square charge-radii changes, high-precision magnetic moments, quadrupole moments.

doi: 10.1038/s42005-020-0348-9
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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
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2019KO19      Phys.Rev. C 100, 034304 (2019)

A.Koszorus, X.F.Yang, J.Billowes, C.L.Binnersley, M.L.Bissell, T.E.Cocolios, G.J.Farooq-Smith, R.P.de Groote, K.T.Flanagan, S.Franchoo, R.F.Garcia Ruiz, S.Geldhof, W.Gins, A.Kanellakopoulos, K.M.Lynch, G.Neyens, H.H.Stroke, A.R.Vernon, K.D.A.Wendt, S.G.Wilkins

Precision measurements of the charge radii of potassium isotopes

NUCLEAR MOMENTS 38,39,42,44,46,47K; measured hyperfine structures (hfs) for 4s2S1/2 to 4p2P1/2 atomic transition using Collinear Resonance Ionization Spectroscopy (CRIS) at ISOLDE-CERN; deduced isotope shifts, mean-square charge radii, and changes in the mean-square charge radii with reference to 47K. The potassium isotopes were produced at the CERN-ISOLDE facility in U(p, X), E=1.4 GeV reaction using UCx target, high-resolution mass separator (HRS), and gas-filled linear Paul trap (ISCOOL).

doi: 10.1103/PhysRevC.100.034304
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2019PS01      Phys.Rev. C 99, 065807 (2019)

A.Psaltis, A.Khaliel, E.-M.Assimakopoulou, A.Kanellakopoulos, V.Lagaki, M.Lykiardopoulou, E.Malami, P.Tsavalas, A.Zyriliou, T.J.Mertzimekis

Cross-section measurements of radiative proton-capture reactions in 112Cd at energies of astrophysical interest

NUCLEAR REACTIONS 112Cd(p, γ)113In, E=2.8, 3.0, 3.2, 3.4 MeV; measured x-ray fluorescence spectrum of the target, Eγ, Iγ, γ(θ) of measured absolute yields, σ(E) for ground and isomeric states in 113Cd, isomeric ratios, total production σ(E) using in-beam and activation techniques at the 5.5 MV Tandem Van de Graaff accelerator of the NCSR Demokritos in Athens. 113In; deduced levels, astrophysical S factors. 112Cd(p, n), E=3-8 MeV; calculated total σ(E) by Hauser-Feshbach methodology using TALYS code, and compared with experimental data.

doi: 10.1103/PhysRevC.99.065807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2459.


2018ST03      Eur.Phys.J. A 54, 7 (2018)

A.Stamatopoulos, A.Kanellakopoulos, A.Kalamara, M.Diakaki, A.Tsinganis, M.Kokkoris, V.Michalopoulou, M.Axiotis, A.Lagoyiannis, R.Vlastou

Measurement of the 234U(n, f) cross-section with quasi-monoenergetic beams in the keV and MeV range using a Micromegas detector assembly

NUCLEAR REACTIONS 234,235,238U(n, F), E=452, 550, 651 keV, 7.5, 8.7, 10 MeV; measured Eα, Iα; deduced σ; 234U(n, F) σ compared with EXFOR, ENDF/B-VII.1, JEFF-3.2, JENDL-4.0u2, CENDL-3.1, ROSFOND.

doi: 10.1140/epja/i2018-12429-2
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23393.


2017KH16      Phys.Rev. C 96, 035806 (2017)

A.Khaliel, T.J.Mertzimekis, E.-M.Asimakopoulou, A.Kanellakopoulos, V.Lagaki, A.Psaltis, I.Psyrra, E.Mavrommatis

First cross-section measurements of the reactions 107, 109Ag(p, γ)108, 110Cd at energies relevant to the p process

NUCLEAR REACTIONS 107,109Ag(p, γ)108Cd/110Cd, E=2.2, 3.5, 4 MeV; measured Eγ, Iγ, total reaction s(E) using in-beam spectroscopy at Tandem accelerator of NCSR Demokritos; deduced S factor. Discussed p-process. Comparison with Hauser-Feshbach statistical calculations using TALYS code. 107Ag(p, n)107Cd, E=2.4-6 MeV; analyzed reaction σ(E) from previous experimental data with TALYS calculations.

doi: 10.1103/PhysRevC.96.035806
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2444.


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