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1.
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Laser-assisted decay spectroscopy and mass spectrometry of $^{178}\mathrm{Au}$
/ 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 et al.
A comprehensive study of the isotope $^{178}$ Au has been made at the CERN-ISOLDE facility, using resonance laser ionization. Two long-lived states in $^{178}$ Au were identified—a low-spin ground state and a high-spin isomer—each of which were produced as pure beams. [...]
2020 - 12 p.
- Published in : Phys. Rev. C 102 (2020) 044332
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2.
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Laser-assisted decay spectroscopy for the ground states of $^{180,182}$Au
/ Harding, R D (CERN ; York U., England) ; Andreyev, A N (York U., England ; JAERI, Tokai) ; Barzakh, A E (St. Petersburg, INP) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Cubiss, J G (York U., England) ; Van Duppen, P (Leuven U.) ; Al Monthery, M (York U., England) ; Althubiti, N A (Manchester U.) ; Andel, B (Leuven U. ; Comenius U.) ; Antalic, S (Comenius U.) et al.
A study of the ground states of the laser-ionized and mass-separated odd-odd isotopes $^{180,182}$Au was performed using the Resonance Ionization Laser Ion Source, Windmill detection setup and ISOLTRAP Multi-Reflection Time-of-Flight Mass Spectrometer at ISOLDE, CERN. A complex fine-structure α-decay pattern of $^{180}$Au was deduced, providing insight into the low-lying levels in the daughter nucleus $^{176}Ir$. [...]
2020 - 16 p.
- Published in : Phys. Rev. C 102 (2020) 024312
Fulltext from publisher: PDF;
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3.
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Examining the $N$ = 28 shell closure through high-precision mass measurements of $^{46-48}$Ar
/ Mougeot, M. (CSNSM, Orsay) ; Atanasov, D. (Heidelberg, Max Planck Inst. ; Dresden, Tech. U.) ; Barbieri, C. (Surrey U. ; Milan U. ; INFN, Milan) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Breitenfeld, M. (CERN) ; de Roubin, A. (Heidelberg, Max Planck Inst.) ; Duguet, T. (IRFU, Saclay ; Leuven U.) ; George, S. (Heidelberg, Max Planck Inst.) ; Herfurth, F. (Darmstadt, GSI) ; Herlert, A. (FAIR, Darmstadt) et al.
The strength of the $N$ = 28 magic number in neutron-rich argon isotopes is examined through high-precision mass measurements of $^{46-48}$Ar, performed with the ISOLTRAP mass spectrometer at ISOLDE/CERN. The new mass values are up to 90 times more precise than previous measurements. [...]
arXiv:2006.02712.-
2020-07-01 - 15 p.
- Published in : Phys. Rev. C 102 (2020) 014301
Fulltext: PDF;
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4.
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Hyperfine anomaly in gold and magnetic moments of ${I}^{\pi}=11/{2}^{-}$ gold isomers
/ Barzakh, A E (Kurchatov Inst., Moscow) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Andreyev, A N (York U., England ; JAERI, Tokai) ; Al Monthery, M (York U., England) ; Althubiti, N A (Manchester U. ; Al Jouf U.) ; Andel, B (Leuven U. ; Comenius U.) ; Antalic, S (Comenius U.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cocolios, T E (Leuven U. ; Manchester U.) ; Cubiss, J G (York U., England) et al.
Hyperfine-structure constants for the 6s2S1/2 and 6p2P1/2 atomic states of the Iπ=11/2− gold isomers Aum177,191,193,195 have been measured at CERN-ISOLDE, using the in-source laser resonance-ionization spectroscopy technique. From the measured hyperfine constants the differences between hyperfine anomalies for these atomic states have been deduced. [...]
2020 - 9 p.
- Published in : Phys. Rev. C 101 (2020) 034308
Fulltext from publisher: PDF;
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5.
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Mass measurements of neutron-rich isotopes near N=20 by in-trap decay with the ISOLTRAP spectrometer
/ Ascher, P (CENBG, Gradignan) ; Althubiti, N (U. Manchester (main) ; Al Jouf U.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cakirli, R B (Istanbul U.) ; Grévy, S (CENBG, Gradignan) ; Herfurth, F (Darmstadt, GSI) ; Kreim, S (Heidelberg, Max Planck Inst.) ; Lunney, D (CSNSM, Orsay) ; Manea, V (CERN) et al.
The masses of $^{34}$Si, $^{33,34}$Mg, and $^{34}$Al have been measured with the ISOLTRAP Penning-trap spectrometer at ISOLDE/CERN. The results are in agreement with previous mass measurements and uncertainties have been decreased. [...]
2019 - 9 p.
- Published in : Phys. Rev. C 100 (2019) 014304
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6.
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Change in structure between the $I = 1/2$ states in $^{181}$Tl and $^{177,179}$Au
/ Cubiss, J G (York U., England ; CERN) ; Barzakh, A E (Kurchatov Inst., Moscow) ; Andreyev, A N (York U., England ; JAERI, Tokai ; CERN) ; Al Monthery, M (York U., England) ; Althubiti, N (Manchester U.) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cocolios, T E (Leuven U. ; Manchester U. ; CERN) et al.
The first accurate measurements of the $\alpha$-decay branching ratio and half-life of the $I^{\pi}=1/2^+$ ground state in $^{181}$Tl have been made, along with the first determination of the magnetic moments and $I=1/2$ spin assignments of the ground states in $^{177,179}$Au. The results are discussed within the complementary systematics of the reduced $\alpha$-decay widths and nuclear $g$ factors of low-lying, $I^{\pi}=1/2^+$ states in the neutron-deficient lead region. [...]
2018 - 9 p.
- Published in : Phys. Lett. B 786 (2018) 355-363
Article from SCOAP3: PDF;
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7.
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Precision Mass Measurement of $^{58-63}$Cr: Nuclear Collectivity towards the $N=40$ Island of Inversion
/ Mougeot, M. (CSNSM, Orsay) ; Atanasov, D. (Heidelberg, Max Planck Inst.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Chrysalidis, K. (CERN) ; Day Goodacre, T. (CERN ; Manchester U.) ; Fedorov, D. (St. Petersburg, INP) ; Fedosseev, V. (CERN) ; George, S. (Heidelberg, Max Planck Inst.) ; Herfurth, F. (Darmstadt, GSI) ; Holt, J.D. (TRIUMF) et al.
The neutron-rich isotopes $^{58-63}$Cr were produced for the first time at the ISOLDE facility and their masses were measured with the ISOLTRAP spectrometer. The new values are up to 300 times more precise than those in the literature and indicate significantly different nuclear structure from the new mass-surface trend. [...]
arXiv:1808.03997.-
2018-06-06 - 7 p.
- Published in : Phys. Rev. Lett. 120 (2018) 232501
Fulltext: PhysRevLett.120.232501 - PDF; 1808.03997 - PDF;
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8.
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Binding Energy of $^{79}\mathrm{Cu}$: Probing the Structure of the Doubly Magic $^{78}\mathrm{Ni}$ from Only One Proton Away
/ Welker, A (Dresden, Tech. U. ; CERN) ; Althubiti, N A S (Manchester U.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cocolios, T E (Leuven U.) ; Herfurth, F (Darmstadt, GSI) ; Kreim, S (Heidelberg, Max Planck Inst.) ; Lunney, D (CSNSM, Orsay) ; Manea, V (CERN ; Heidelberg, Max Planck Inst.) ; Mougeot, M (CSNSM, Orsay) et al.
The masses of the neutron-rich copper isotopes Cu75–79 are determined using the precision mass spectrometer ISOLTRAP at the CERN-ISOLDE facility. The trend from the new data differs significantly from that of previous results, offering a first accurate view of the mass surface adjacent to the Z=28, N=50 nuclide Ni78 and supporting a doubly magic character. [...]
2017 - 6 p.
- Published in : Phys. Rev. Lett. 119 (2017) 192502
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10.
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ISOLTRAP's multi-reflection time-of-flight mass separator/spectrometer
/ Wolf, R N ; Wienholtz, F ; Atanasov, D ; Beck, D ; Blaum, K ; Borgmann, Ch ; Herfurth, F ; Kowalska, M (CERN) ; Kreim, S ; Litvinov, Yu A et al.
The online precision mass spectrometer ISOLTRAP at ISOLDE/CERN was recently upgraded by adding a multi-reflection time-of-flight mass separator/spectrometer (MR-ToF MS) between the linear radio-frequency ion trap and the two Penning traps already in place. As a mass separator, the MR-ToF device has improved significantly ISOLTRAP's capability of purification of contaminated ion beams. [...]
2013 - 11 p.
- Published in : Int. J. Mass Spectrometry 349-350 (2013) 123-133
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