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169 results on '"Sels, S."'

1. Nuclear charge radii of germanium isotopes around $N$ = 40

Author

Wang, S. J., Kanellakopoulos, A., Yang, X. F., Bai, S. W., Billowes, J., Bissell, M. L., Blaum, K., Cheal, B., Devlin, C. S., Ruiz, R. F. Garcia, Han, J. Z., Heylen, H., Kaufmann, S., Konig, K., Koszorus, A., Lechner, S., Malbrunot-Ettenauer, S., Nazarewicz, W., Neugart, R., Neyens, G., Nortershauser, W., Ratajczyk, T., Reinhard, P. -G., Rodrıguez, L. V., Sels, S., Xie, L., Xu, Z. Y., Yordanov, D. T., and Yu, Y. M.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Collinear laser spectroscopy measurements were performed on $^{68-74}$Ge isotopes ($Z = 32$) at ISOLDE-CERN, by probing the $4s^2 4p^2 \, ^3\!P_1 \rightarrow 4s^2 4p 5s \, ^3\!P_1^o$ atomic transition (269~nm) of germanium. Nuclear charge radii are determined via the measured isotope shifts, revealing a larger local variation than the neighboring isotopic chains. Nuclear density functional theory with the Fayans functionals Fy($\Delta r$,HFB) and Fy(IVP), and the SV-min Skyrme describes the experimental data for the differential charge radii $\delta\langle r^{2} \rangle$ and charge radii $R_{\rm c}$ within the theoretical uncertainties. The observed large variation in the charge radii of germanium isotopes is better accounted for by theoretical models incorporating ground state quadrupole correlations. This suggests that the polarization effects due to pairing and deformation contribute to the observed large odd-even staggering in the charge radii of the Ge isotopic chain., Comment: 6 pages,5 figures

Published
2024
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2. Oil Spill Drone: A Dataset of Drone-Captured, Segmented RGB Images for Oil Spill Detection in Port Environments

Author

De Kerf, T., Sels, S., Samsonova, S., and Vanlanduit, S.

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

The high incidence of oil spills in port areas poses a serious threat to the environment, prompting the need for efficient detection mechanisms. Utilizing automated drones for this purpose can significantly improve the speed and accuracy of oil spill detection. Such advancements not only expedite cleanup operations, reducing environmental harm but also enhance polluter accountability, potentially deterring future incidents. Currently, there's a scarcity of datasets employing RGB images for oil spill detection in maritime settings. This paper presents a unique, annotated dataset aimed at addressing this gap, leveraging a neural network for analysis on both desktop and edge computing platforms. The dataset, captured via drone, comprises 1268 images categorized into oil, water, and other, with a convolutional neural network trained using an Unet model architecture achieving an F1 score of 0.71 for oil detection. This underscores the dataset's practicality for real-world applications, offering crucial resources for environmental conservation in port environments.

Published
2024

3. Increased beam energy as a pathway towards a highly selective and high-flux MR-ToF mass separator

Author

Maier, FM, Buchinger, F, Croquette, L, Fischer, P, Heylen, H, Hummer, F, Kanitz, C, Kwiatkowski, AA, Lagaki, V, Lechner, S, Leistenschneider, E, Neyens, G, Plattner, P, Roitman, A, Rosenbusch, M, Schweikhard, L, Sels, S, Vilen, M, Wienholtz, F, and Malbrunot-Ettenauer, S

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Bioengineering, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences, Nuclear & Particles Physics, Nuclear and plasma physics
Abstract

Many experiments at radioactive ion beam (RIB) facilities suffer from isobaric contamination, i.e. unwanted ions of similar mass. During the last decade, Multi-Reflection Time-of-Flight (MR-ToF) devices have gained remarkable attention for mass separation of short-lived, low-intensity beams of radionuclides at RIB facilities throughout the world. They exceed mass resolving powers m/Δm of 105 within a processing time of some (tens of) milliseconds. Due to space-charge effects, however, the mass separation remains an experimental challenge when many ions are simultaneously confined in the MR-ToF device. This limits the wider application of MR-ToF mass separators at RIB facilities. By performing ion-optical simulations including space-charge effects, we investigate different schemes of ion preparation in a Paul trap upstream of the MR-ToF device as well as MR-ToF operation and study their influence on mass separation and maximal ion flux. The validity of these simulations are benchmarked by time-of-flight and collision-induced fluorescence measurements with a 1.5 keV MR-ToF device. More advanced ion-beam preparation techniques such as the use of laser cooling, buffer-gas cooling at cryogenic temperatures or specific electric-field parameters for ion trapping and ejection from the Paul trap can significantly reduce the processing time needed to reach a given mass resolving power. However, the simulations of these methods also indicate that space-charge effects in the MR-ToF device become relevant at lower ion numbers compared to ’standard’ ion preparation. Thus, the overall amount of mass separated ions per unit of time remains essentially the same. In contrast, the simulations suggest that increasing the kinetic energy of typically just a few kiloelectronvolts in present MR-ToF instruments to 30 keV results in a significant increase of the attainable maximal ion flux.

Published
2023

4. Production study of Fr, Ra and Ac radioactive ion beams at ISOLDE, CERN

Author

Jajčišinová, E., Dockx, K., Au, M., Bara, S., Cocolios, T. E., Chrysalidis, K., Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., Flanagan, K. T., Heines, M., Houngbo, D., Johnson, J. D., Kellerbauer, A., Kraemer, S., Marsh, B. A., Popescu, L., Ramos, J. P., Rothe, S., Seliverstov, M. D., Sels, S., Stegemann, S., Stryjczyk, M., and Verelst, V.

Published
2024
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5. Charge radii, moments and masses of mercury isotopes across the N = 126 shell closure

Author

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

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Combining laser spectroscopy in a Versatile Arc Discharge and Laser Ion Source, with Penning-trap mass spectrometry at the CERN-ISOLDE facility, this work reports on mean-square charge radii of neutron-rich mercury isotopes across the $N = 126$ shell closure, the electromagnetic moments of $^{207}$Hg and more precise mass values of $^{206-208}$Hg. The odd-even staggering (OES) of the mean square charge radii and the kink at $N = 126$ are analyzed within the framework of covariant density functional theory (CDFT), with comparisons between different functionals to investigate the dependence of the results on the underlying single-particle structure. The observed features are defined predominantly in the particle-hole channel in CDFT, since both are present in the calculations without pairing. However, the magnitude of the kink is still affected by the occupation of the $1i_{11/2}$ and $2g_{9/2}$ orbitals with a dependence on the relative energies as well as pairing., Comment: 20 pages, 12 figures, Phys. Rev. C in press

Published
2021
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7. Laser spectroscopy of neutron-rich $^{207,208}$Hg isotopes: Illuminating the kink and odd-even staggering in charge radii across the $N=126$ shell closure

Author

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

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The mean-square charge radii of $^{207,208}$Hg ($Z=80, N=127,128$) have been studied for the first time and those of $^{202,203,206}$Hg ($N=122,123,126$) remeasured by the application of in-source resonance-ionization laser spectroscopy at ISOLDE (CERN). The characteristic \textit{kink} in the charge radii at the $N=126$ neutron shell closure has been revealed, providing the first information on its behavior below the $Z=82$ proton shell closure. A theoretical analysis has been performed within relativistic Hartree-Bogoliubov and non-relativistic Hartree-Fock-Bogoliubov approaches, considering both the new mercury results and existing lead data. Contrary to previous interpretations, it is demonstrated that both the kink at $N=126$ and the odd-even staggering (OES) in its vicinity can be described predominately at the mean-field level, and that pairing does not need to play a crucial role in their origin. A new OES mechanism is suggested, related to the staggering in the occupation of the different neutron orbitals in odd- and even-$A$ nuclei, facilitated by particle-vibration coupling for odd-$A$ nuclei., Comment: 7 pages, 5 figures, Physical Review C, in press

Published
2020
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8. Nuclear Moments of Germanium Isotopes around $N$ = 40

Author

Kanellakopoulos, A., Yang, X. F., Bissell, M. L., Reitsma, M. L., Bai, S. W., Billowes, J., Blaum, K., Borschevsky, A., Cheal, B., Devlin, C. S., Ruiz, R. F. Garcia, Heylen, H., Kaufmann, S., König, K., Koszorús, Á., Lechner, S., Malbrunot-Ettenauer, S., Neugart, R., Neyens, G., Nörtershäuser, W., Ratajczyk, T., Rodríguez, L. V., Sels, S., Wang, S. J., Xie, L., Xu, Z. Y., and Yordanov, D. T.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Collinear laser spectroscopy measurements were performed on $^{69,71,73}$Ge isotopes ($Z = 32$) at ISOLDE-CERN. The hyperfine structure of the $4s^2 4p^2 \, ^3P_1 \rightarrow 4s^2 4p 5s \, ^3P_1^o$ transition of the germanium atom was probed with laser light of 269 nm, produced by combining the frequency-mixing and frequency-doubling techniques. The hyperfine fields for both atomic levels were calculated using state-of-the-art atomic relativistic Fock-space coupled-cluster calculations. A new $^{73}$Ge quadrupole moment was determined from these calculations and previously measured precision hyperfine parameters, yielding $Q_{\rm s}$ = $-$0.198(4) b, in excellent agreement with the literature value from molecular calculations. The moments of $^{69}$Ge have been revised: $\mu$ = +0.920(5) $\mu_{N}$ and $Q_{\rm s}$= +0.114(8) b, and those of $^{71}$Ge have been confirmed. The experimental moments around $N = 40$ are interpreted with large-scale shell-model calculations using the JUN45 interaction, revealing rather mixed wave function configurations, although their $g$-factors are lying close to the effective single-particle values. Through a comparison with neighboring isotones, the structural change from the single-particle nature of nickel to deformation in germanium is further investigated around $N = 40$., Comment: accepted in Phys. Rev. C., in production

Published
2020
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10. Shape staggering of mid-shell mercury isotopes from in-source laser spectroscopy compared with Density Functional Theory and Monte Carlo Shell Model calculations

Author

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

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Neutron-deficient $^{177-185}$Hg isotopes were studied using in-source laser resonance-ionization spectroscopy at the CERN-ISOLDE radioactive ion-beam facility, in an experiment combining different detection methods tailored to the studied isotopes. These include either alpha-decay tagging or Multi-reflection Time-of-Flight gating to identify the isotopes of interest. The endpoint of the odd-even nuclear shape staggering in mercury was observed directly by measuring for the first time the isotope shifts and hyperfine structures of $^{177-180}$Hg. Changes in the mean-square charge radii for all mentioned isotopes, magnetic dipole and electric quadrupole moments of the odd-A isotopes and arguments in favor of $I = 7/2$ spin assignment for $^{177,179}$Hg were deduced. Experimental results are compared with Density Functional Theory (DFT) and Monte-Carlo Shell Model (MCSM) calculations. DFT calculations with several Skyrme parameterizations predict a large jump in the charge radius around the neutron $N = 104$ mid shell, with an odd-even staggering pattern related to the coexistence of nearly-degenerate oblate and prolate minima. This near-degeneracy is highly sensitive to many aspects of the effective interaction, a fact that renders perfect agreement with experiment out of reach for current functionals. Despite this inherent diffculty, the SLy5s1 and a modified UNEDF1^{SO} parameterization predict a qualitatively correct staggering that is off by two neutron numbers. MCSM calculations of states with the experimental spins and parities show good agreement for both electromagnetic moments and the observed charge radii. A clear mechanism for the origin of shape staggering within this context is identified: a substantial change in occupancy of the proton $\pi h_{9/2}$ and neutron $\nu i_{13/2}$ orbitals., Comment: 19 pages, 18 figures

Published
2019
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13. Producing gold at ISOLDE-CERN

Author

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

Published
2022
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15. PUMA, antiProton unstable matter annihilation: PUMA collaboration

Author

Aumann, T., Bartmann, W., Boine-Frankenheim, O., Bouvard, A., Broche, A., Butin, F., Calvet, D., Carbonell, J., Chiggiato, P., De Gersem, H., De Oliveira, R., Dobers, T., Ehm, F., Somoza, J. Ferreira, Fischer, J., Fraser, M., Friedrich, E., Frotscher, A., Gomez-Ramos, M., Grenard, J.-L., Hobl, A., Hupin, G., Husson, A., Indelicato, P., Johnston, K., Klink, C., Kubota, Y., Lazauskas, R., Malbrunot-Ettenauer, S., Marsic, N., O Müller, W. F., Naimi, S., Nakatsuka, N., Necca, R., Neidherr, D., Neyens, G., Obertelli, A., Ono, Y., Pasinelli, S., Paul, N., Pollacco, E. C., Rossi, D., Scheit, H., Schlaich, M., Schmidt, A., Schweikhard, L., Seki, R., Sels, S., Siesling, E., Uesaka, T., Vilén, M., Wada, M., Wienholtz, F., Wycech, S., and Zacarias, S.

Published
2022
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19. Corrigendum to “Nuclear charge radii of germanium isotopes around N = 40” [Physics Letters B, 856 (2024)138867]

Author

Wang, S.J., Kanellakopoulos, A., Yang, X.F., Bai, S.W., Billowes, J., Bissell, M.L., Blaum, K., Cheal, B., Devlin, C.S., Ruiz, R.F. Garcia, Han, J.Z., Heylen, H., Kaufmann, S., König, K., Koszorús, Á., Lechner, S., Malbrunot-Ettenauer, S., Nazarewicz, W., Neugart, R., Neyens, G., Nörtershäuser, W., Ratajczyk, T., Reinhard, P.-G., Rodríguez, L.V., Sels, S., Xie, L., Xu, Z.Y., Yordanov, D.T., and Yu, Y.M.

Published
2024
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20. Deformation versus Sphericity in the Ground States of the Lightest Gold Isotopes

Author

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

Published
2023
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22. Characterization of the shape-staggering effect in mercury nuclei

Author

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

Published
2018
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23. Author Correction: Characterization of the shape-staggering effect in mercury nuclei

Author

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

Published
2022
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27. Developments towards in-gas-jet laser spectroscopy studies of actinium isotopes at LISOL

Author

Raeder, S., Bastin, B., Block, M., Creemers, P., Delahaye, P., Ferrer, R., Fléchard, X., Franchoo, S., Ghys, L., Gaffney, L.P., Granados, C., Heinke, R., Hijazi, L., Huyse, M., Kron, T., Kudryavtsev, Yu., Laatiaoui, M., Lecesne, N., Luton, F., Moore, I.D., Martinez, Y., Mogilevskiy, E., Naubereit, P., Piot, J., Rothe, S., Savajols, H., Sels, S., Sonnenschein, V., Traykov, E., Van Beveren, C., Van den Bergh, P., Van Duppen, P., Wendt, K., and Zadvornaya, A.

Published
2016
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29. Doppler and sympathetic cooling for the investigation of short-lived radioactive ions

Author

Sels, S., primary, Maier, F. M., additional, Au, M., additional, Fischer, P., additional, Kanitz, C., additional, Lagaki, V., additional, Lechner, S., additional, Leistenschneider, E., additional, Leimbach, D., additional, Lykiardopoulou, E. M., additional, Kwiatkowski, A. A., additional, Manovitz, T., additional, Vila Gracia, Y. N., additional, Neyens, G., additional, Plattner, P., additional, Rothe, S., additional, Schweikhard, L., additional, Vilen, M., additional, Wolf, R. N., additional, and Malbrunot-Ettenauer, S., additional

Published
2022
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30. New developments of the in-source spectroscopy method at RILIS/ISOLDE

Author

Marsh, B.A., Andel, B., Andreyev, A.N., Antalic, S., Atanasov, D., Barzakh, A.E., Bastin, B., Borgmann, Ch., Capponi, L., Cocolios, T.E., Day Goodacre, T., Dehairs, M., Derkx, X., De Witte, H., Fedorov, D.V., Fedosseev, V.N., Focker, G.J., Fink, D.A., Flanagan, K.T., Franchoo, S., Ghys, L., Huyse, M., Imai, N., Kalaninova, Z., Köster, U., Kreim, S., Kesteloot, N., Kudryavtsev, Yu., Lane, J., Lecesne, N., Liberati, V., Lunney, D., Lynch, K.M., Manea, V., Molkanov, P.L., Nicol, T., Pauwels, D., Popescu, L., Radulov, D., Rapisarda, E., Rosenbusch, M., Rossel, R.E., Rothe, S., Schweikhard, L., Seliverstov, M.D., Sels, S., Sjödin, A.M., Truesdale, V., Van Beveren, C., Van Duppen, P., Wendt, K., Wienholtz, F., Wolf, R.N., and Zemlyanoy, S.G.

Published
2013
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31. VR Everest: Virtual Reality movie

Author

Alvarez, Rodrigo, Chiavassa, Andréa, Cocolios, Thomas Elias, Godefroid, Michel, Goriely, Stéphane, Kullmann, Ina, Raabe, Riccardo, Sels, S., Sermeus, Jan, Van Duppen, Piet, Van Eck, Sophie, Alvarez, Rodrigo, Chiavassa, Andréa, Cocolios, Thomas Elias, Godefroid, Michel, Goriely, Stéphane, Kullmann, Ina, Raabe, Riccardo, Sels, S., Sermeus, Jan, Van Duppen, Piet, and Van Eck, Sophie

Abstract

info:eu-repo/semantics/published

Published
2022

32. PUMA, antiProton unstable matter annihilation

Author

Aumann, T., Bartmann, W., Boine-Frankenheim, O., Bouvard, A., Broche, A., Butin, F., Calvet, D., Carbonell, J., Chiggiato, P., de Gersem, H., de Oliveira, R., Dobers, T., Ehm, F., Somoza, J.Ferreira, Fischer, J., Fraser, M., Friedrich, E., Frotscher, A., Gomez-Ramos, M., Grenard, J.L., Hobl, A., Hupin, G., Husson, A., Indelicato, P., Johnston, K., Klink, C., Kubota, Y., Lazauskas, R., Malbrunot-Ettenauer, S., Marsic, N., O Müller, W.F., Naimi, S., Nakatsuka, N., Necca, R., Neidherr, D., Neyens, G., Obertelli, A., Ono, Y., Pasinelli, S., Paul, N., Pollacco, E.C., Rossi, D., Scheit, H., Schlaich, M., Schmidt, A., Schweikhard, L., Seki, R., Sels, S., Siesling, E., Uesaka, T., Vilén, M., Wada, M., Wienholtz, F., Wycech, S., Zacarias, S., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Kastler Brossel (LKB [Collège de France]), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and PUMA

Subjects
CERN Lab, experimental methods, Nuclear Theory, p: density, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], sensitivity, annihilation, nuclear physics, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Physics - Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Physics::Atomic Physics, nucleus: density, Detectors and Experimental Techniques, nucleus: surface, Nuclear Experiment, activity report
Abstract

International audience; PUMA, antiProton Unstable Matter Annihilation, is a nuclear-physics experiment at CERN aiming at probing the surface properties of stable and rare isotopes by use of low-energy antiprotons. Low-energy antiprotons offer a very unique sensitivity to the neutron and proton densities at the annihilation site, i.e. in the tail of the nuclear density. Today, no facility provides a collider of low-energy radioactive ions and low-energy antiprotons: while not being a collider experiment, PUMA aims at transporting one billion antiprotons from ELENA, the Extra-Low-ENergy Antiproton ring, to ISOLDE, the rare-isotope beam facility of CERN. PUMA will enable the capture of low-energy antiprotons by short-lived nuclei and the measurement of the emitted radiations. In this way, PUMA will give access to the so-far largely unexplored isospin composition of the nuclear-radial-density tail of radioactive nuclei. The motivations, concept and current status of the PUMA experiment are presented.

Published
2022

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

Author

Harding, RD, Andreyev, AN, Barzakh, AE, Cubiss, JG, Van Duppen, P, Al Monthery, M, Althubiti, NA, Andel, B, Antalic, S, Cocolios, TE, Goodacre, T Day, Dockx, K, Farooq-Smith, GJ, Fedorov, D, Fedosseev, VN, Fink, DA, Gaffney, LP, Ghys, L, Johnson, JD, Joss, DT, Huyse, M, Imai, N, Lynch, KM, Marsh, BA, Palenzuela, Y Martinez, Molkanov, PL, O'Neill, GG, Page, RD, Rossel, RE, Rothe, S, Seliverstov, MD, Sels, S, Van Beveren, C, and Verstraelen, E

Subjects
ENERGY, Science & Technology, Physics, Nuclear, LIGHT, STATES, SHAPE COEXISTENCE, MOMENTS, Physics, Physical Sciences, ISOTOPES, GOLD, DATA SHEETS
Abstract

ispartof: PHYSICAL REVIEW C vol:104 issue:2 status: published

Published
2021

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

Author

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

Published
2021
Full Text
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35. Large Shape Staggering in Neutron-Deficient Bi Isotopes

Author

Barzakh, A., primary, Andreyev, A. N., additional, Raison, C., additional, Cubiss, J. G., additional, Van Duppen, P., additional, Péru, S., additional, Hilaire, S., additional, Goriely, S., additional, Andel, B., additional, Antalic, S., additional, Al Monthery, M., additional, Berengut, J. C., additional, Bieroń, J., additional, Bissell, M. L., additional, Borschevsky, A., additional, Chrysalidis, K., additional, Cocolios, T. E., additional, Day Goodacre, T., additional, Dognon, J.-P., additional, Elantkowska, M., additional, Eliav, E., additional, Farooq-Smith, G. J., additional, Fedorov, D. V., additional, Fedosseev, V. N., additional, Gaffney, L. P., additional, Garcia Ruiz, R. F., additional, Godefroid, M., additional, Granados, C., additional, Harding, R. D., additional, Heinke, R., additional, Huyse, M., additional, Karls, J., additional, Larmonier, P., additional, Li, J. G., additional, Lynch, K. M., additional, Maison, D. E., additional, Marsh, B. A., additional, Molkanov, P., additional, Mosat, P., additional, Oleynichenko, A. V., additional, Panteleev, V., additional, Pyykkö, P., additional, Reitsma, M. L., additional, Rezynkina, K., additional, Rossel, R. E., additional, Rothe, S., additional, Ruczkowski, J., additional, Schiffmann, S., additional, Seiffert, C., additional, Seliverstov, M. D., additional, Sels, S., additional, Skripnikov, L. V., additional, Stryjczyk, M., additional, Studer, D., additional, Verlinde, M., additional, Wilman, S., additional, and Zaitsevskii, A. V., additional

Published
2021
Full Text
View/download PDF

36. Laser-assisted nuclear decay spectroscopy of Au176,177,179

Author

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

Published
2021
Full Text
View/download PDF

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

Author

Goodacre, T Day, Afanasjev, AV, Barzakh, AE, Marsh, BA, Sels, S, Ring, P, Nakada, H, Andreyev, AN, Van Duppen, P, Althubiti, NA, Andel, B, Atanasov, D, Billowes, J, Blaum, K, Cocolios, TE, Cubiss, JG, Farooq-Smith, GJ, Fedorov, DV, Fedosseev, VN, Flanagan, KT, Gaffney, LP, Ghys, L, Huyse, M, Kreim, S, Lunney, D, Lynch, KM, Manea, V, Palenzuela, Y Martinez, Molkanov, PL, Rosenbusch, M, Rossel, RE, Rothe, S, Schweikhard, L, Seliverstov, MD, Spagnoletti, P, Van Beveren, C, Veinhard, M, Verstraelen, E, Welker, A, Wendt, K, Wienholtz, F, Wolf, RN, Zadvornaya, A, and Zuber, K

Published
2021

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

Author

Day Goodacre, T., Afanasjev, A. V., Barzakh, A. E., Marsh, B. A., Sels, S., Ring, P., Nakada, H., Andreyev, A. N., Van Duppen, P., Althubiti, N. A., Andel, B., Atanasov, D., Billowes, J., Blaum, K., Cocolios, T. E., Cubiss, J. G., Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., Flanagan, K. T., Gaffney, L. P., Ghys, L., Huyse, M., Kreim, S., Lunney, D., Lynch, K. M., Manea, V., Martinez Palenzuela, Y., Molkanov, P. L., Rosenbusch, M., Rossel, R. E., Rothe, S., Schweikhard, L., Seliverstov, M. D., Spagnoletti, P., Van Beveren, C., Veinhard, M., Verstraelen, E., Welker, A., Wendt, K., Wienholtz, F., Wolf, R. N., Zadvornaya, A., Zuber, K., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory, nucl-th, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, Nuclear Theory (nucl-th), Nuclear Physics - Theory, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), Präzisionsexperimente - Abteilung Blaum, Nuclear Experiment, Nuclear Physics
Abstract

The mean-square charge radii of $^{207,208}$Hg ($Z=80, N=127,128$) have been studied for the first time and those of $^{202,203,206}$Hg ($N=122,123,126$) remeasured by the application of in-source resonance-ionization laser spectroscopy at ISOLDE (CERN). The characteristic \textit{kink} in the charge radii at the $N=126$ neutron shell closure has been revealed, providing the first information on its behavior below the $Z=82$ proton shell closure. A theoretical analysis has been performed within relativistic Hartree-Bogoliubov and non-relativistic Hartree-Fock-Bogoliubov approaches, considering both the new mercury results and existing lead data. Contrary to previous interpretations, it is demonstrated that both the kink at $N=126$ and the odd-even staggering (OES) in its vicinity can be described predominately at the mean-field level, and that pairing does not need to play a crucial role in their origin. A new OES mechanism is suggested, related to the staggering in the occupation of the different neutron orbitals in odd- and even-$A$ nuclei, facilitated by particle-vibration coupling for odd-$A$ nuclei., Comment: 7 pages, 5 figures, Physical Review C, in press

Published
2021

39. Laser-assisted nuclear decay spectroscopy of $^{176,177,179}$Au

Author

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

Subjects
Nuclear Physics - Experiment, Physics::Atomic Physics, Nuclear Experiment
Abstract

A study of the laser-ionized and mass-separated neutron-deficient isotopes $^{176,177,179}$Au was performed using the Resonance Ionization Laser Ion Source and the Windmill detection setup at ISOLDE, CERN. New and improved data on complex fine-structure α decays of the three isotopes were deduced, providing insight into the low-lying levels in the daughter nuclei $^{172,173,175}$Ir. New information on the properties of β-decay daughter products $^{177,179}$Pt was also obtained. From the first in-source laser spectroscopy measurements of the hyperfine structure in the atomic 267.6-nm transition of 176Au, the nuclear magnetic moments for both high- and low-spin α-decaying states were deduced. Together with the values determined from the additivity relations, they were used to propose the most probable spins and configurations for both states. The α-decay branching ratios were determined as $b_{\alpha}$ $\left (^{176}\textrm{Au}^{ls}\right)=58(5)$% and $b_{\alpha}$ $(^{176} \textrm{Au}^{hs})=29(5)$%.

Published
2021

40. Large Shape Staggering in Neutron-Deficient Bi Isotopes

Author

Barzakh, Anatoli A.E., Andreyev, Andrei, Raison, C., Cubiss, J.G., Van Duppen, Piet, Péru, S., Hilaire, Stéphane, Goriely, Stéphane, Andel, Boris, Antalic, S., Al Monthery, M., Berengut, J.C., Bieron, J., Bissell, M.L., Borschevsky, A., Chrysalidis, K., Cocolios, Thomas, Day Goodacre, T., Dognon, J.-P., Elantkowska, M., Eliav, E., Farooq-Smith, G.J., Fedorov, D.V., Fedosseev, Valentine V.N., Gaffney, L.P., Garcia Ruiz, R.F., Godefroid, Michel, Granados, C., Harding, R.D., Heinke, R., Huyse, Mark, Karls, Julia, Larmonier, P., Li, J.G., Lynch, K.M., Maison, D.E., Marsh, B. A., Molkanov, P., Mosat, P., Oleynichenko, A.V., Panteleev, V., Pyykkö, Pekka, Reitsma, M.L., Rezynkina, K., Rossel, R.E., Rothe, S., Ruczkowski, J., Schiffmann, Sacha, Seiffert, Christoph, Seliverstov, M.D., Sels, S., Skripnikov, L.V., Stryjczyk, M., Studer, D., Verlinde, M., Zaitsevskii, A.V., Barzakh, Anatoli A.E., Andreyev, Andrei, Raison, C., Cubiss, J.G., Van Duppen, Piet, Péru, S., Hilaire, Stéphane, Goriely, Stéphane, Andel, Boris, Antalic, S., Al Monthery, M., Berengut, J.C., Bieron, J., Bissell, M.L., Borschevsky, A., Chrysalidis, K., Cocolios, Thomas, Day Goodacre, T., Dognon, J.-P., Elantkowska, M., Eliav, E., Farooq-Smith, G.J., Fedorov, D.V., Fedosseev, Valentine V.N., Gaffney, L.P., Garcia Ruiz, R.F., Godefroid, Michel, Granados, C., Harding, R.D., Heinke, R., Huyse, Mark, Karls, Julia, Larmonier, P., Li, J.G., Lynch, K.M., Maison, D.E., Marsh, B. A., Molkanov, P., Mosat, P., Oleynichenko, A.V., Panteleev, V., Pyykkö, Pekka, Reitsma, M.L., Rezynkina, K., Rossel, R.E., Rothe, S., Ruczkowski, J., Schiffmann, Sacha, Seiffert, Christoph, Seliverstov, M.D., Sels, S., Skripnikov, L.V., Stryjczyk, M., Studer, D., Verlinde, M., and Zaitsevskii, A.V.

Abstract

The changes in the mean-square charge radius (relative to Bi209), magnetic dipole, and electric quadrupole moments of Bi187,188,189,191 were measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). A large staggering in radii was found in Bi187,188,189g, manifested by a sharp radius increase for the ground state of Bi188 relative to the neighboring Bi187,189g. A large isomer shift was also observed for Bi188m. Both effects happen at the same neutron number, N=105, where the shape staggering and a similar isomer shift were observed in the mercury isotopes. Experimental results are reproduced by mean-field calculations where the ground or isomeric states were identified by the blocked quasiparticle configuration compatible with the observed spin, parity, and magnetic moment., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2021

41. Laser Spectroscopy of Neutron-Rich Hg207,208 Isotopes: Illuminating the Kink and Odd-Even Staggering in Charge Radii across the N=126 Shell Closure

Author

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

Subjects
ddc
Published
2020

42. β-delayed fission of isomers in 188Bi

Author

Andel, Boris, Andreyev, Andrei, Antalic, S., Al Monthery, M., Barzakh, Anatoli A.E., Bissell, M.L., Chrysalidis, K., Cocolios, T. E., Cubiss, J.G., Day Goodacre, T., Dubray, Noel, Farooq-Smith, G.J., Fedorov, D.V., Fedosseev, Valentine V.N., Gaffney, L.P., Garcia Ruiz, R.F., Goriely, Stéphane, Granados, C., Harding, R.D., Heinke, R., Hilaire, Stéphane, Huyse, Mark, Lemaître, Jean-François, Lynch, K.M., Marsh, B. A., Molkanov, P., Mosat, P., Péru, S., Raison, C., Rothe, S., Seliverstov, M.D., Sels, S., Studer, D., Sundberg, J., and van Duppen, P.

Subjects
Physique atomique et nucléaire
Abstract

info:eu-repo/semantics/published

Published
2020

43. $beta$-delayed fission of isomers in $^188Bi$

Author

Andel, B., Andreyev, A. N., Antalic, S., Al Monthery, M., Barzakh, A., Bissell, M. L., Chrysalidis, K., Cocolios, T. E., Cubiss, J. G., Day Goodacre, T., Dubray, N., Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., Gaffney, L. P., Garcia Ruiz, R. F., Goriely, S., Granados, C., Harding, R. D., Heinke, R., Hilaire, S., Huyse, M., Lemaître, J.-F., Lynch, K. M., Marsh, B. A., Molkanov, P., Mosat, P., Péru, S., Raison, C., Rothe, S., Seiffert, C., Seliverstov, M. D., Sels, S., Studer, D., Sundberg, J., and Van Duppen, P.

Published
2020

44. β -delayed fission of isomers in Bi 188

Author

Andel, Boris, Andreyev, Andrei, Antalic, S., Al Monthery, M., Barzakh, Anatoli A.E., Bissell, M.L., Chrysalidis, Katerina, Cocolios, Thomas Elias, Cubiss, James J.G., Day Goodacre, T., Dubray, Noel, Farooq-Smith, G.J., Fedorov, Dmitry, Fedosseev, Valentine V.N., Gaffney, L.P., Garcia Ruiz, R.F., Goriely, Stéphane, Granados, Camilo, Harding, Robert R.D., Heinke, Reinhard, Hilaire, Stéphane, Huyse, Mark, Lemaitre, Jean-François, Lynch, Kara K.M., Marsh, Bruce, Molkanov, P.L. P.L., Mosat, P., Péru, S., Raison, C., Rothe, Sebastian, Seiffert, Christoph, Seliverstov, Maxim, Sels, S., Studer, Dominik, Sundberg, Julia, and Van Duppen, P.

Subjects
Physique atomique et nucléaire
Abstract

β-delayed fission (βDF) decay of a low-spin (ls) and a high-spin (hs) isomer in Bi188 was studied at the ISOLDE facility at CERN. Isomer-selective laser ionization and time gating were employed to investigate each isomer separately and their βDF partial half-lives were determined: T1/2p,βDF(188Bihs)=5.6(8)×103 s and T1/2p,βDF(188Bils)=1.7(6)×103 s. This work is the first βDF study of two states in one isotope and allows the spin dependence of low-energy fission to be explored. The fission fragment mass distribution of a daughter nuclide Pb188, following the β decay of the high-spin isomer, was deduced and indicates a mixture of symmetric and asymmetric fission modes. Experimental results were compared with self-consistent mean-field calculations based on the finite-range Gogny D1M interaction. To reproduce the measured T1/2p,βDF(188Bihs), the calculated fission barrier of Pb188 had to be reduced by ≈30%. After this reduction, the measured T1/2p,βDF(188Bils) was in agreement with calculations for a few possible configurations for Bils188. Theoretical βDF probabilities for these configurations were found to be lower by a factor of 4-9 than the βDF probability of Bihs188. The fission fragment mass distribution of Pb188 was compared to the scission-point model SPY and the calculations based on the finite-range liquid-drop model. The first observation of βDF for Bi190 is also reported., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2020

45. Shape coexistence in $^187Au$ studied by laser spectroscopy

Author

Barzakh, A. E., Atanasov, D., Andreyev, A. N., Monthery, M. Al, Althubiti, N. A., Andel, B., Antalic, S., Blaum, K., Cocolios, T. E., Cubiss, J. G., Van Duppen, P., Goodacre, T. Day, de Roubin, A., Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., Fink, D. A., Gaffney, L. P., Ghys, L., Harding, R. D., Huyse, M., Imai, N., Kreim, S., Lunney, D., Lynch, K. M., Manea, V., Marsh, B. A., Palenzuela, Y. Martinez, Molkanov, P. L., Neidherr, D., Rosenbusch, M., Rossel, R. E., Rothe, S., Schweikhard, L., Seliverstov, M. D., Sels, S., Van Beveren, C., Verstraelen, E., Welker, A., Wienholtz, F., Wolf, R. N., Zuber, K., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Physics::Atomic and Molecular Clusters, ddc:530, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Präzisionsexperimente - Abteilung Blaum, Nuclear Structure
Abstract

Physical review / C 101(6), 064321 (2020). doi:10.1103/PhysRevC.101.064321, Published by APS, Woodbury, NY

Published
2020

46. Hyperfine anomaly in gold and magnetic moments of Iπ=11/2− gold isomers

Author

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

Subjects
Präzisionsexperimente - Abteilung Blaum
Abstract

ispartof: Physical Review C vol:101 issue:3 pages:034308-1-034308-9 status: published

Published
2020

47. $alpha$-decay branching ratio of $^180Pt$

Author

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

Published
2020

48. α-decay branching ratio of 180Pt

Author

Cubiss, JG, Harding, RD, Andreyev, AN, Althubiti, N, Andel, B, Antalic, S, Barzakh, AE, Cocolios, TE, Goodacre, TD, Farooq-Smith, GJ, Fedorov, DV, Fedosseev, VN, Gaffney, LP, Ghys, L, Huyse, M, Lynch, KM, Marsh, BA, Martinez Palenzuela, Y, Molkanov, PL, Rossel, RE, Rothe, S, Seliverstov, MD, Sels, S, Spagnoletti, P, Van Beveren, C, Van Duppen, P, Veinhard, M, Verstraelen, E, and Zadvornaya, A

Abstract

ispartof: Physical Review C vol:101 issue:1 pages:014314-014314 status: published

Published
2020

49. Laser-assisted decay spectroscopy and mass spectrometry of $^{178}\mathrm{Au}$

Author

Cubiss, J.G., Andreyev, A.N., Barzakh, A.E., Manea, V., Al Monthery, M., Althubiti, N.A., Andel, B., Antalic, S., Atanasov, D., Blaum, K., Cocolios, T.E., Day Goodacre, T., De Roubin, A., Farooq-Smith, G.J., Fedorov, D.V., Fedosseev, V.N., Fink, D.A., Gaffney, L.P., Ghys, L., Harding, R.D., Herfurth, F., Huyse, M., Imai, N., Joss, D.T., Kreim, S., Lunney, D., Lynch, K.M., Marsh, B.A., Martinez Palenzuela, Y., Molkanov, P.L., Neidherr, D., O'Neill, G.G., Page, R.D., Rosenbusch, M., Rossel, R.E., Rothe, S., Schweikhard, L., Seliverstov, M.D., Sels, S., Stott, A., Van Beveren, C., Van Duppen, P., Verstraelen, E., Welker, A., Wienholtz, F., Wolf, R.N., Zuber, K., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
[PHYS]Physics [physics], Nuclear Experiment
Abstract

International audience; A comprehensive study of the isotope $^{178}$Auhas been made at the CERN-ISOLDE facility, using resonance laser ionization. Two long-lived states in$^{178}$Auwere identified—a low-spin ground state and a high-spin isomer—each of which were produced as pure beams. Using the ISOLTRAP precision Penning trap, the excitation energy of the isomeric state in$^{178}$Auwas determined to be$E$$^{*}$=189(14)keV. Theα-decay fine structure patterns of the two states were studied using the Windmill decay station, providing information on the low-lying states in the daughter nucleus$^{174}$Ir. Nuclear spin assignments of$I$($^{178}$Au$^{g}$)=(2,3)and$I$($^{178}$Aum)=(7,8)are made based on the observed$\beta$-decay feeding and hyperfine structure intensity patterns. These spin assignments are used for fitting the hyperfine structures of the two states from which values for the magnetic dipole moments are extracted. The extracted moments are compared with calculations using additivity relations to establish the most probable configurations for$^{178}$Au$^{g,m}$.

Published
2020

50. Laser Spectroscopy of Neutron-Rich Hg207,208 Isotopes: Illuminating the Kink and Odd-Even Staggering in Charge Radii across the N=126 Shell Closure

Author

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

Published
2021
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