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234 results on '"Lynch, K. M."'

1. $^{61}$Cr as a Doorway to the N = 40 Island of Inversion

Author

Lalanne, L., Athanasakis-Kaklamanakis, M., Dao, D. D., Koszorús, Á., Liu, Y. C., Mancheva, R., Nowacki, F., Reilly, J., Bernerd, C., Chrysalidis, K., Cocolios, T. E., de Groote, R. P., Flanagan, K. T., Ruiz, R. F. Garcia, Hanstorp, D., Heinke, R., Heines, M., Lassegues, P., Mack, K., Marsh, B. A., McGlone, A., Lynch, K. M., Neyens, G., Borne, B. van den, Van Duyse, R., Yang, X. F., and Wessolek, J.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

This paper reports on the measurement of the ground-state spin and nuclear magnetic dipole moment of $^{61}$Cr. The radioactive ion beam was produced at the CERN-ISOLDE facility and was probed using high-resolution resonance ionization laser spectroscopy with the CRIS apparatus. The present ground-state spin measurement $I = \frac{1}{2}$, differing from the previously adopted $I =(\frac{5}{2})$, has significant consequences on the interpretation of existing beta decay data and nuclear structure in the region. The structure and shape of $^{61}$Cr is interpreted with state-of-the-art Large-Scale Shell Model and Discrete-Non-Orthogonal Shell Model calculations. From the measured magnetic dipole moment $\mu(^{61}$Cr$)=+0.539(7)~\mu_N$ and the theoretical findings, its configuration is understood to be driven by 2 particle - 2 hole neutron excitations with an unpaired $1p_{1/2}$ neutron. This establishes the western border of the $N=40$ Island Of Inversion (IoI), characterized by 4 particle - 4 hole neutron components. We discuss the shape evolution along the Cr isotopic chain as a quantum phase transition at the entrance of the $N=40$ IoI.

Published
2024

2. Electromagnetic properties of indium isotopes illuminate the doubly magic character of 100Sn

Author

Karthein, J., Ricketts, C. M., Garcia Ruiz, R. F., Billowes, J., Binnersley, C. L., Cocolios, T. E., Dobaczewski, J., Farooq-Smith, G. J., Flanagan, K. T., Georgiev, G., Gins, W., de Groote, R. P., Gustafsson, F. P., Holt, J. D., Kanellakopoulos, A., Koszorús, Á., Leimbach, D., Lynch, K. M., Miyagi, T., Nazarewicz, W., Neyens, G., Reinhard, P.-G., Sahoo, B. K., Vernon, A. R., Wilkins, S. G., Yang, X. F., and Yordanov, D. T.

Published
2024
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3. Radiative lifetime of the A 2{\Pi}1/2 state in RaF with relevance to laser cooling

Author

Athanasakis-Kaklamanakis, M., Wilkins, S. G., Lassègues, P., Lalanne, L., Reilly, J. R., Ahmad, O., Au, M., Bai, S. W., Berbalk, J., Bernerd, C., Borschevsky, A., Breier, A. A., Chrysalidis, K., Cocolios, T. E., de Groote, R. P., Fajardo-Zambrano, C. M., Flanagan, K. T., Franchoo, S., Ruiz, R. F. Garcia, Hanstorp, D., Heinke, R., Imgram, P., Koszorús, A., Kyuberis, A. A., Lim, J., Liu, Y. C., Lynch, K. M., McGlone, A., Mei, W. C., Neyens, G., Nies, L., Oleynichenko, A. V., Raggio, A., Rothe, S., Skripnikov, L. V., Smets, E., Borne, B. van den, Warbinek, J., Wessolek, J., Yang, X. F., and Collaboration, the ISOLDE

Subjects
Physics - Atomic Physics, Nuclear Experiment
Abstract

The radiative lifetime of the $A$ $^2 \Pi_{1/2}$ (v=0) state in radium monofluoride (RaF) is measured to be 35(1) ns. The lifetime of this state and the related decay rate $\Gamma = 2.86(8) \times 10^7$ $s^{-1}$ are of relevance to the laser cooling of RaF via the optically closed $A$ $^2 \Pi_{1/2} \leftarrow X$ $^2\Sigma_{1/2}$ transition, which makes the molecule a promising probe to search for new physics. RaF is found to have a comparable photon-scattering rate to homoelectronic laser-coolable molecules. Thanks to its highly diagonal Franck-Condon matrix, it is expected to scatter an order of magnitude more photons than other molecules when using just 3 cooling lasers, before it decays to a dark state. The lifetime measurement in RaF is benchmarked by measuring the lifetime of the $8P_{3/2}$ state in Fr to be 83(3) ns, in agreement with literature., Comment: Accepted as a Letter in Physical Review A; 8 pages of main text, 5 pages of supplemental material

Published
2024

4. Electromagnetic Properties of Indium Isotopes Elucidate the Doubly Magic Character of $^{100}$Sn

Author

Karthein, J., Ricketts, C. M., Ruiz, R. F. Garcia, Billowes, J., Binnersley, C. L., Cocolios, T. E., Dobaczewski, J., Farooq-Smith, G. J., Flanagan, K. T., Georgiev, G., Gins, W., de Groote, R. P., Gustafsson, F. P., Holt, J. D., Kanellakopoulos, A., Koszorús, Á., Leimbach, D., Lynch, K. M., Miyagi, T., Nazarewicz, W., Neyens, G., Reinhard, P. -G., Sahoo, B. K., Vernon, A. R., Wilkins, S. G., Yang, X. F., and Yordanov, D. T.

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

Our understanding of nuclear properties in the vicinity of $^{100}$Sn, suggested to be the heaviest doubly magic nucleus with equal numbers of protons (Z=50) and neutrons (N=50), has been a long-standing challenge for experimental and theoretical nuclear physics. Contradictory experimental evidence exists on the role of nuclear collectivity in this region of the nuclear chart. Using precision laser spectroscopy, we measured the ground-state electromagnetic moments of indium (Z=49) isotopes approaching the N=50 neutron number down to 101In, and nuclear charge radii of 101-131In spanning almost the complete range between the two major neutron closed-shells at N=50 and N=82. Our results for both nuclear charge radii and quadrupole moments reveal striking parabolic trends as a function of the neutron number, with a clear reduction toward these two neutron closed-shells, thus supporting a doubly magic character of $^{100}$Sn. Two complementary nuclear many-body frameworks, density functional theory and ab initio methods, elucidate our findings. A detailed comparison with our experimental results exposes deficiencies of nuclear models, establishing a benchmark for future theoretical developments., Comment: 12 pages, 6 figures, 4 tables; text-identical to Nature Physics article (2024)

Published
2023
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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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6. 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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7. Measurement and microscopic description of odd-even staggering of charge radii of exotic copper isotopes

Author

de Groote, R. P., Billowes, J., Binnersley, C. L., Bissell, M. L., Cocolios, T. E., Goodacre, T. Day, Farooq-Smith, G. J., Fedorov, D. V., Flanagan, K. T., Franchoo, S., Ruiz, R. F. Garcia, Gins, W., Holt, J. D., Koszorús, Á., Lynch, K. M., Miyagi, T., Nazarewicz, W., Neyens, G., Reinhard, P. -G., Rothe, S., Stroke, H. H., Vernon, A. R., Wendt, K. D. A., Wilkins, S. G., Xu, Z. Y., and Yang, X. F.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The mesoscopic nature of the atomic nucleus gives rise to a wide array of macroscopic and microscopic phenomena. The size of the nucleus is a window into this duality: while the charge radii globally scale as $A^{1/3}$, their evolution across isotopic chains reveals unanticipated structural phenomena [1-3]. The most ubiquitous of these is perhaps the Odd-Even Staggering (OES) [4]: isotopes with an odd number of neutrons are usually smaller in size than the trend of their even-neutron neighbours suggests. This OES effect varies with the number of protons and neutrons and poses a significant challenge for nuclear theory [5-7]. Here, we examine this problem with new measurements of the charge radii of short-lived copper isotopes up to the very exotic $^{78}$Cu $(Z=29, N=49)$, produced at only 20 ions/s, using the highly-sensitive Collinear Resonance Ionisation Spectroscopy (CRIS) method at ISOLDE-CERN. Due to the presence of a single proton outside of the closed Z=28 shell, these measurements provide crucial insights into the single-particle proton structure and how this affects the charge radii. We observe an unexpected reduction in the OES for isotopes approaching the $N=50$ shell gap. To describe the data, we applied models based on nuclear Density Functional Theory [2,8] (DFT) and ab-initio Valence-Space In-Medium Similarity Renormalization Group (VS-IMSRG) theory [9,10]. Through these comparisons, we demonstrate a relation between the global behavior of charge radii and the saturation density of nuclear matter, and show that the local charge radii variations, which reflect the many-body polarization effects due to the odd neutron, naturally emerge from the VS-IMSRG calculations.

Published
2019
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8. Analytic Response Relativistic Coupled-Cluster Theory: The first application to indium isotope shifts

Author

Sahoo, B. K., Vernon, A. R., Ruiz, R. F. Garcia, Binnersley, C. L., Billowes, J., Bissell, M. L., Cocolios, T. E., Farooq-Smith, G. J., Flanagan, K. T., Gins, W., de Groote, R. P., Koszorus, A., Neyens, G., Lynch, K. M., Parnefjord-Gustafsson, F., Ricketts, C. M., Wendt, K. D. A, Wilkins, S. G., and Yang, X. F.

Subjects
Physics - Atomic Physics, Nuclear Experiment
Abstract

With increasing demand for accurate calculation of isotope shifts of atomic systems for fundamental and nuclear structure research, an analytic energy derivative approach is presented in the relativistic coupled-cluster theory framework to determine the atomic field shift and mass shift factors. This approach allows the determination of expectation values of atomic operators, overcoming fundamental problems that are present in existing atomic physics methods, i.e. it satisfies the Hellmann-Feynman theorem, does not involve any non-terminating series, and is free from choice of any perturbative parameter. As a proof of concept, the developed analytic response relativistic coupled-cluster theory has been applied to determine mass shift and field shift factors for different atomic states of indium. High-precision isotope-shift measurements of $^{104-127}$In were performed in the 246.8-nm (5p $^2$P$_{3/2}$ $\rightarrow$ 9s $^2$S$_{1/2}$) and 246.0-nm (5p $^2$P$_{1/2}$ $\rightarrow$ 8s $^2$S$_{1/2}$) transitions to test our theoretical results. An excellent agreement between the theoretical and measured values is found, which is known to be challenging in multi-electron atoms. The calculated atomic factors allowed an accurate determination of the nuclear charge radii of the ground and isomeric states of the $^{104-127}$In isotopes, providing an isotone-independent comparison of the absolute charge radii., Comment: Submitted

Published
2019
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9. 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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10. Nuclear moments of indium isotopes reveal abrupt change at magic number 82

Author

Vernon, A. R., Garcia Ruiz, R. F., Miyagi, T., Binnersley, C. L., Billowes, J., Bissell, M. L., Bonnard, J., Cocolios, T. E., Dobaczewski, J., Farooq-Smith, G. J., Flanagan, K. T., Georgiev, G., Gins, W., de Groote, R. P., Heinke, R., Holt, J. D., Hustings, J., Koszorús, Á., Leimbach, D., Lynch, K. M., Neyens, G., Stroberg, S. R., Wilkins, S. G., Yang, X. F., and Yordanov, D. T.

Published
2022
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11. Dipole and quadrupole moments of $^{73-78}$Cu as a test of the robustness of the $Z=28$ shell closure near $^{78}$Ni

Author

de Groote, R. P., Billowes, J., Binnersley, C. L., Bissell, M. L., Cocolios, T. E., Goodacre, T. Day, Farooq-Smith, G. J., Fedorov, D. V., Flanagan, K. T., Franchoo, S., Ruiz, R. F. Garcia, Koszorús, Á., Lynch, K. M., Neyens, G., Nowacki, F., Otsuka, T., Rothe, S., Stroke, H. H., Tsunoda, Y., Vernon, A. R., Wendt, K. D. A., Wilkins, S. G., Xu, Z. Y., and Yang, X. F.

Subjects
Nuclear Experiment
Abstract

Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground-states of neutron-rich $^{76-78}$Cu isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN. The nuclear moments of the less exotic $^{73,75}$Cu isotopes were re-measured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and $^{78}_{29}$Cu ($N=49$) in particular, are used to investigate excitations of the assumed doubly-magic $^{78}$Ni core through comparisons with large-scale shell-model calculations. Despite the narrowing of the $Z=28$ shell gap between $N\sim45$ and $N=50$, the magicity of $Z=28$ and $N=50$ is restored towards $^{78}$Ni. This is due to weakened dynamical correlations, as clearly probed by the present moment measurements.

Published
2017
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12. Study of the long-lived excited state in the neutron deficient nuclides $^{195,197,199}$Po by precision mass measurement

Author

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

Subjects
Nuclear Experiment
Abstract

Direct mass measurements of the low-spin $3/2^{(-)}$ and high-spin $13/2^{(+)}$ states in the neutron-deficient isotopes $^{195}$Po, $^{197}$Po, and high-spin $13/2^{(+)}$ state in $^{199}$Po were performed with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE-CERN. These measurements allow the determination of the excitation energy of the isomeric state arising from the $\nu$i$_{13/2}$ orbital in $^{195,197}$Po. Additionally, the excitation energy of isomeric states of lead, radon, and radium isotopes in this region were obtained from $\alpha$-decay chains. The new excitation energies complete the knowledge of the energy systematics in the region and confirm for the first time that the $13/2^{(+)}$ states remain isomeric, independent of the number of valence neutrons.

Published
2017
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13. Laser spectroscopy of francium isotopes at the borders of the region of reflection asymmetry

Author

Budinčević, I., Billowes, J., Bissell, M. L., Cocolios, T. E., de Groote, R. P., De Schepper, S., Fedosseev, V. N., Flanagan, K. T., Franchoo, S., Ruiz, R. F. Garcia, Heylen, H., Lynch, K. M., Marsh, B. A., Neyens, G., Procter, T. J., Rossel, R. E., Rothe, S., Strashnov, I., Stroke, H. H., and Wendt, K. D. A.

Subjects
Nuclear Experiment
Abstract

The magnetic dipole moments and changes in mean-square charge radii of the neutron-rich $^{218m,219,229,231}\text{Fr}$ isotopes were measured with the newly-installed Collinear Resonance Ionization Spectroscopy (CRIS) beam line at ISOLDE, CERN, probing the $7s~^{2}S_{1/2}$ to $8p~^{2}P_{3/2}$ atomic transition. The $\delta\langle r^{2}\rangle^{A,221}$ values for $^{218m,219}\text{Fr}$ and $^{229,231}\text{Fr}$ follow the observed increasing slope of the charge radii beyond $N~=~126$. The charge radii odd-even staggering in this neutron-rich region is discussed, showing that $^{220}\text{Fr}$ has a weakly inverted odd-even staggering while $^{228}\text{Fr}$ has normal staggering. This suggests that both isotopes reside at the borders of a region of inverted staggering, which has been associated with reflection-asymmetric shapes. The $g(^{219}\text{Fr}) = +0.69(1)$ value supports a $\pi 1h_{9/2}$ shell model configuration for the ground state. The $g(^{229,231}\text{Fr})$ values support the tentative $I^{\pi}(^{229,231}\text{Fr}) = (1/2^{+})$ spin, and point to a $\pi s_{1/2}^{-1}$ intruder ground state configuration., Comment: Accepted for publication with Physical Review C

Published
2014
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14. Decay-assisted collinear resonance ionization spectroscopy: Application to neutron-deficient francium

Author

Lynch, K. M., Billowes, J., Bissell, M. L., Budinčević, I., Cocolios, T. E., De Groote, R. P., De Schepper, S., Fedosseev, V. N., Flanagan, K. T., Franchoo, S., Ruiz, R. F. Garcia, Heylen, H., Marsh, B. A., Neyens, G., Procter, T. J., Rossel, R. E., Rothe, S., Strashnov, I., Stroke, H. H., and Wendt, K. D. A.

Subjects
Nuclear Experiment
Abstract

This paper reports on the hyperfine-structure and radioactive-decay studies of the neutron-deficient francium isotopes $^{202-206}$Fr performed with the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the ISOLDE facility, CERN. The high resolution innate to collinear laser spectroscopy is combined with the high efficiency of ion detection to provide a highly-sensitive technique to probe the hyperfine structure of exotic isotopes. The technique of decay-assisted laser spectroscopy is presented, whereby the isomeric ion beam is deflected to a decay spectroscopy station for alpha-decay tagging of the hyperfine components. Here, we present the first hyperfine-structure measurements of the neutron-deficient francium isotopes $^{202-206}$Fr, in addition to the identification of the low-lying states of $^{202,204}$Fr performed at the CRIS experiment., Comment: Accepted for publication with Physical Review X

Published
2014
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15. Measurement and microscopic description of odd–even staggering of charge radii of exotic copper isotopes

Author

de Groote, R. P., Billowes, J., Binnersley, C. L., Bissell, M. L., Cocolios, T. E., Day Goodacre, T., Farooq-Smith, G. J., Fedorov, D. V., Flanagan, K. T., Franchoo, S., Garcia Ruiz, R. F., Gins, W., Holt, J. D., Koszorús, Á., Lynch, K. M., Miyagi, T., Nazarewicz, W., Neyens, G., Reinhard, P.-G., Rothe, S., Stroke, H. H., Vernon, A. R., Wendt, K. D. A., Wilkins, S. G., Xu, Z. Y., and Yang, X. F.

Published
2020
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16. 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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18. 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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19. 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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20. Measuring the electron affinity of polonium

Author

Nichols, M, Athanasakis-Kaklamanakis, M, Balasmeh, Y, Borschevsky, A, Cocolios, T E, Crosa-Rossa, R, de Groote, R P, Fajordo-Zambrano, C, Flanagan, K T, Garcia Ruiz, R F, Hanstorp, D, Koszorús, Á, Lalanne, l, Leimbach, D, Liu, Y C, Liu, Y S, Lynch, K M, McGlone, A, Neyens, G, Pastrana, F, Reilly, J, Rothe, S, Trujillo, J, van den Borne, B, Wilkins, S G, and Yang, X F

Subjects
Detectors and Experimental Techniques
Published
2023

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

Author

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

Subjects
Nuclear Physics - Experiment
Abstract

The internal transition decay and α decay of the $T_{1/2} = 53.3$ ms, $9/2^-$ isomeric state in the neutron-deficient isotope, $^{183}$Tl, have been studied using the Resonance Ionization Laser Ion Source and the Windmill detection setup at the ISOLDE facility at CERN. Clean samples of $^{183}$Tl were produced by selective laser ionization and subsequent mass separation. An internal transition cascade of 356.5–272.2 keV $\gamma$ rays has been identified. Multipolarities of these transitions have been determined by means of simultaneous $\gamma$-ray and conversion-electron spectroscopy. Improved data for the fine structure of the $^{183}$Tl → $^{179}$Au decay were deduced. This involves a 6058 keV $\alpha$-decay transition, which populates a previously unknown state in $^{179}$Au, that is tentatively assigned as a ($9/2^-$). It is interpreted as a coupling of the $1h_{9/2}$ proton-intruder with the excited $0^+$ state in the 178Pt core.

Published
2022

23. Decay modes of the 9/2− isomeric state in Tl183

Author

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

Published
2022
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24. Large Shape Staggering in Neutron-Deficient Bi Isotopes

Author

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

Published
2021

25. First results from the CRIS experiment

Author

Flanagan, K. T., Billowes, J., Bissell, M. L., Budinčević, I., Cocolios, T. E., de Groote, R. P., De Schepper, S., Fedosseev, V. N., Franchoo, S., Garcia Ruiz, R. F., Heylen, H., Lynch, K. M., Marsh, B. A., Neyens, G., Procter, T. J., Rossel, R. E., Rothe, S., Strashnov, I., Stroke, H. H., and Wendt, K. D. A.

Published
2014
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26. 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
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27. 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
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29. 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
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30. 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
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31. 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

32. 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

33. $beta$-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

34. 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
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35. $alpha$-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

36. 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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38. Laser-assisted decay spectroscopy and mass spectrometry of Au178

Author

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

Published
2020
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39. Laser-assisted decay spectroscopy for the ground states of Au180,182

Author

Harding, R. D., primary, Andreyev, A. N., additional, Barzakh, A. E., additional, Atanasov, D., additional, Cubiss, J. G., additional, Van Duppen, P., additional, Al Monthery, M., additional, Althubiti, N. A., additional, Andel, B., additional, Antalic, S., 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, Joss, D. T., additional, Herfurth, F., additional, Huyse, M., additional, Imai, N., 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, Page, R. D., additional, Pastore, A., additional, Rosenbusch, M., additional, Rossel, R. E., additional, Rothe, S., additional, Schweikhard, L., additional, Seliverstov, M. D., additional, Sels, S., additional, Van Beveren, C., additional, Verstraelen, E., additional, Welker, A., additional, Wienholtz, F., additional, Wolf, R. N., additional, and Zuber, K., additional

Published
2020
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40. β -delayed fission of isomers in Bi188

Author

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

Published
2020
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41. Shape coexistence in Au187 studied by laser spectroscopy

Author

Barzakh, A. E., primary, Atanasov, D., additional, Andreyev, A. N., additional, Monthery, M. Al, additional, Althubiti, N. A., additional, Andel, B., additional, Antalic, S., additional, Blaum, K., additional, Cocolios, T. E., additional, Cubiss, J. G., additional, Van Duppen, P., additional, Goodacre, T. Day, 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, Kreim, S., additional, Lunney, D., additional, Lynch, K. M., additional, Manea, V., additional, Marsh, B. A., additional, Palenzuela, Y. Martinez, additional, Molkanov, P. L., additional, Neidherr, D., additional, Rosenbusch, M., additional, Rossel, R. E., additional, Rothe, S., additional, Schweikhard, L., additional, Seliverstov, M. D., additional, Sels, S., additional, Van Beveren, C., additional, Verstraelen, E., additional, Welker, A., additional, Wienholtz, F., additional, Wolf, R. N., additional, and Zuber, K., additional

Published
2020
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42. Hyperfine anomaly in gold and magnetic moments of Iπ=11/2− gold isomers

Author

Barzakh, A. E., primary, Atanasov, D., additional, Andreyev, A. N., additional, Al Monthery, M., additional, Althubiti, N. A., additional, Andel, B., additional, Antalic, S., additional, Blaum, K., additional, Cocolios, T. E., additional, Cubiss, J. G., additional, Van Duppen, P., additional, Goodacre, T. Day, additional, de Roubin, A., additional, Demidov, Yu. 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, Joss, D. T., additional, Herfurth, F., additional, Huyse, M., additional, Imai, N., additional, Kozlov, M. G., 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, Page, R. D., additional, Rosenbusch, M., additional, Rossel, R. E., additional, Rothe, S., additional, Schweikhard, L., additional, Seliverstov, M. D., additional, Sels, S., additional, Van Beveren, C., additional, Verstraelen, E., additional, Welker, A., additional, Wienholtz, F., additional, Wolf, R. N., additional, and Zuber, K., additional

Published
2020
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43. α -decay branching ratio of Pt180

Author

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

Published
2020
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44. Analytic response relativistic coupled-cluster theory: the first application to indium isotope shifts

Author

Sahoo, B K, primary, Vernon, A R, additional, Garcia Ruiz, R F, additional, Binnersley, C L, additional, Billowes, J, additional, Bissell, M L, additional, Cocolios, T E, additional, Farooq-Smith, G J, additional, Flanagan, K T, additional, Gins, W, additional, de Groote, R P, additional, Koszorús, Á, additional, Neyens, G, additional, Lynch, K M, additional, Parnefjord-Gustafsson, F, additional, Ricketts, C M, additional, Wendt, K D A, additional, Wilkins, S G, additional, and Yang, X F, additional

Published
2020
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45. Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in 217,218,219At revealed by in-source laser spectroscopy

Author

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

Subjects
Physics::Atomic Physics, Präzisionsexperimente - Abteilung Blaum, Nuclear Experiment
Abstract

© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Hyperfine-structure parameters and isotope shifts for the 795-nm atomic transitions in At217,218,219 have been measured at CERN-ISOLDE, using the in-source resonance-ionization spectroscopy technique. Magnetic dipole and electric quadrupole moments, and changes in the nuclear mean-square charge radii, have been deduced. A large inverse odd-even staggering in radii, which may be associated with the presence of octupole collectivity, has been observed. Namely, the radius of the odd-odd isotope At218 has been found to be larger than the average of its even-N neighbors, At217,219. The discrepancy between the additivity-rule prediction and experimental data for the magnetic moment of At218 also supports the possible presence of octupole collectivity in the considered nuclei. ispartof: Physical Review C vol:99 issue:5 status: published

Published
2019

46. Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in $^{217 , 218 , 219}$At revealed by in-source laser spectroscopy

Author

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

Subjects
ddc:530
Abstract

Physical review / C covering nuclear physics 99(5), 054317 (2019). doi:10.1103/PhysRevC.99.054317, Published by Inst., Woodbury, NY

Published
2019
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47. Charge radii and electromagnetic moments of $^{195 – 211}$At

Author

Cubiss, J. G., Barzakh, A. E., Seliverstov, M. D., Andreyev, A. N., Andel, B., Antalic, S., Ascher, P., Atanasov, D., Beck, D., Bieroń, J., Blaum, K., Borgmann, Ch., Breitenfeldt, M., Capponi, L, Cocolios, T. E., Day Goodacre, T., Derkx, X., De Witte, H., Elseviers, J., Fedorov, D. V., Fedosseev, V N, Fritzsche, S., Gaffney, L. P., George, S., Ghys, L., Heßberger, F. P., Huyse, M., Imai, N., Kalaninová, Z., Kisler, D., Köster, U., Kowalska, M., Kreim, S., Lane, J. F. W., Liberati, V., Lunney, D., Lynch, K. M., Manea, V., Marsh, B. A., Mitsuoka, S., Molkanov, P. L., Nagame, Y., Neidherr, D., Nishio, K., Ota, S., Pauwels, D., Popescu, L., Radulov, D., Rapisarda, E., Revill, J. P., Rosenbusch, M., Rossel, R.E., Rothe, S., Sandhu, K., Schweikhard, L., Sels, S., Truesdale, V. L., Van Beveren, C., Van den Bergh, P., Wakabayashi, Y., Van Duppen, P., Wendt, K.D.A., Wienholtz, F., Whitmore, B. W., Wilson, G. L., Wolf, R.N., Zuber, K, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Laue-Langevin (ILL), ILL, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), and Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

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

Physical review / C 97(5), 054327 (2018). doi:10.1103/PhysRevC.97.054327, Published by Inst., Woodbury, NY

Published
2018
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48. Precision measurements of the charge radii of potassium isotopes

Author

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

Published
2019
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49. Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in At217,218,219 revealed by in-source laser spectroscopy

Author

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

Published
2019
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50. Shape staggering of midshell mercury isotopes from in-source laser spectroscopy compared with density-functional-theory and Monte Carlo shell-model calculations

Author

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

Published
2019
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