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Competition between pairing correlations and deformation from the odd-even mass staggering of francium and radium isotopes
/ Kreim, S (CERN ; Heidelberg, Max Planck Inst.) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) ; Breitenfeldt, M (Leuven U.) ; Cocolios, T E (CERN) ; Gottberg, A (CERN) ; Herfurth, F (Darmstadt, GSI) ; Kowalska, M (CERN) ; Litvinov, Yu A (Darmstadt, GSI) et al.
The masses of Fr222,224,226–233 and Ra233,234 have been determined with the Penning-trap mass spectrometer ISOLTRAP at the ISOLDE facility at CERN, including the previously unknown mass and half-life of Fr233. We study the evolution of the odd-even staggering of binding energies along the francium and radium isotopic chains and of its lowest-order estimator, Δ3(N). [...]
2014 - 10 p.
- Published in : Phys. Rev. C 90 (2014) 024301
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2.
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Evolution of nuclear ground-state properties of neutron-deficient isotopes around Z=82 from precision mass measurements
/ Böhm, Ch (Heidelberg, Max Planck Inst.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) ; Audi, G (CSNSM, Orsay) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Breitenfeldt, M (Leuven U.) ; Cakirli, R B (Heidelberg, Max Planck Inst.) ; Cocolios, T E (CERN ; Manchester U.) ; Eliseev, S (Heidelberg, Max Planck Inst.) ; George, S (Michigan State U., NSCL) et al.
High-precision mass measurements of neutron-deficient Tl (A=184, 186, 190, 193–195, 198) isotopes as well as Pb (A=202,208), Fr (A=207,208), and Ra (A=224) are performed with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN. The improved precision of the mass data now allows the study of subtle odd-even effects. [...]
2014 - 9 p.
- Published in : Phys. Rev. C 90 (2014) 044307
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3.
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Penning-trap mass spectrometry and mean-field study of nuclear shape coexistence in the neutron-deficient lead region
/ Manea, V (CSNSM, Orsay ; Heidelberg, Max Planck Inst.) ; Ascher, P (Heidelberg, Max Planck Inst.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Barzakh, A E (St. Petersburg, INP) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) ; Breitenfeldt, M (Leuven U.) ; Cakirli, R B (Heidelberg, Max Planck Inst.) ; Cocolios, T E (Manchester U.) et al.
We present a study of nuclear shape coexistence in the region of neutron-deficient lead isotopes. The midshell gold isotopes Au180,185,188,190 (Z=79), the two long-lived nuclear states in At197 (Z=85), and the neutron-rich nuclide At219 were produced by the ISOLDE facility at CERN and their masses were determined with the high-precision Penning-trap mass spectrometer ISOLTRAP. [...]
2017 - 13 p.
- Published in : Phys. Rev. C 95 (2017) 054322
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4.
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Direct mass measurements of $^{194}$Hg and $^{194}$Au : A new route to the neutrino mass determination?
/ Eliseev, S (Heidelberg, Max Planck Inst.) ; Boehm, C (Heidelberg, Max Planck Inst.) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst. ; Heidelberg U.) ; Breitenfeldt, M (Greifswald U.) ; Fedosseev, V N (CERN) ; George, S (Heidelberg, Max Planck Inst.) ; Herfurth, F (Darmstadt, GSI) ; Herlert, A (CERN) ; Kluge, H J (Darmstadt, GSI ; Heidelberg U.) et al.
2010 - 4 p.
- Published in : Phys. Lett. B 693 (2010) 426-429
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5.
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Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in $^{217,218,219}\mathrm{At}$ revealed by in-source laser spectroscopy
/ Barzakh, A E (St. Petersburg, INP) ; Cubiss, J G (York U., England) ; Andreyev, A N (York U., England ; JAEA, Ibaraki ; CERN) ; Seliverstov, M D (St. Petersburg, INP ; York U., England) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Ascher, P (Heidelberg, Max Planck Inst.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Beck, D (Darmstadt, GSI) ; Bieroń, J (Jagiellonian U.) et al.
Hyperfine-structure parameters and isotope shifts for the 795-nm atomic transitions in $^{217,218,219}$At 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. [...]
2019 - 9 p.
- Published in : Phys. Rev. C 99 (2019) 054317
Article from SCOAP3: PDF;
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6.
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Recent exploits of the ISOLTRAP mass spectrometer
/ Kreim, S (CERN ; Heidelberg, Max Planck Inst.) ; Kowalska, M (CERN) ; Naimi, S (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Breitenfeldt, M (Leuven U.) ; Rossel, R E (Mainz U., Inst. Phys. ; Fachhochschule Wiesbaden) ; Fink, D (Heidelberg, Max Planck Inst. ; Heidelberg U.) ; Stanja, J (Dresden, Tech. U.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) et al.
The Penning-trap mass spectrometer ISOLTRAP, located at the isotope-separator facility ISOLDE (CERN), is presented in its current form taking into account technical developments since 2007. Three areas of developments are presented. [...]
2013
- Published in : Nucl. Instrum. Methods Phys. Res., B 317 (2013) 492-500
In : 16th International Conference on Electromagnetic Isotope Separators and Techniques Related to their Applications, Matsue, Japan, 2 - 7 Dec 2012, pp.492-500
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7.
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Precision mass measurements of cesium isotopes—new entries in the ISOLTRAP chronicles
/ Atanasov, D (Heidelberg, Max Planck Inst.) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) ; Cakirli, R B (Istanbul U.) ; Eronen, T (Heidelberg, Max Planck Inst.) ; George, S (Heidelberg, Max Planck Inst.) ; Herfurth, F (Darmstadt, GSI) ; Herlert, A (FAIR, Darmstadt) ; Kowalska, M (CERN) et al.
Alkali ion beams are among the most intense produced by the ISOLDE facility. These were the first to be studied by the ISOLTRAP mass spectrometer and ever since, new measurements have been regularly reported. [...]
2017 - 10 p.
- Published in : J. Phys. G 44 (2017) 044004
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8.
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Seeking the purported magic number N= 32 with high-precision mass spectrometry
/ Kreim, S (Heidelberg, Max Planck Inst.) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Bohm, Ch (Heidelberg, Max Planck Inst.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) ; Breitenfeldt, M (Leuven U.) ; Cakirli, R B (Heidelberg, Max Planck Inst. ; Istanbul U.) ; Herfurth, F (Darmstadt, GSI) ; Kowalska, M (CERN) ; Litvinov, Y (Darmstadt, GSI) et al.
Accounting for the appearance of new magic numbers represents an exacting test for nuclear models. [...]
CERN-INTC-2011-053 ; INTC-P-317.
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2011.
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9.
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Masses of exotic calcium isotopes pin down nuclear forces
/ Wienholtz, F (Greifswald U.) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) ; Breitenfeldt, M (Leuven U.) ; Cakirli, R B (Heidelberg, Max Planck Inst. ; Istanbul U.) ; George, S (Greifswald U.) ; Herfurth, F (Darmstadt, GSI) ; Holt, J D (Darmstadt, Tech. Hochsch. ; Darmstadt, EMMI) ; Kowalska, M (CERN) et al.
The properties of exotic nuclei on the verge of existence play a fundamental part in our understanding of nuclear interactions. Exceedingly neutron-rich nuclei become sensitive to new aspects of nuclear forces. [...]
2013
- Published in : Nature 498 (2013) 346-349
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10.
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From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of $^{100−130}$Cd
/ Hammen, M (Mainz U., Inst. Kernchem.) ; Nörtershäuser, W (Mainz U., Inst. Kernchem. ; Darmstadt, Tech. Hochsch.) ; Balabanski, D L (Sofiya, Inst. Nucl. Res.) ; Bissell, M L (Leuven U. ; Manchester U.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Budinčević, I (Leuven U.) ; Cheal, B (Liverpool U.) ; Flanagan, K T (Manchester U.) ; Frömmgen, N (Mainz U., Inst. Kernchem.) ; Georgiev, G (CSNSM, Orsay) et al.
Differences in mean-square nuclear charge radii of $^{100–130} \rm{Cd}$ are extracted from high-resolution collinear laser spectroscopy of the $5s^2 S_{1/2} \to 5p^2 P_{3/2}$ transition of the ion and from the $5s5p^3P_2 \to 5s6s^3S_1$ transition in atomic Cd. The radii show a smooth parabolic behavior on top of a linear trend and a regular odd-even staggering across the almost complete $sdgh$ shell. [...]
2018 - 6 p.
- Published in : Phys. Rev. Lett. 121 (2018) 102501
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