Speaker
Dr
Cocolios Thomas Elias
(Instituut voor Kern- en Stralingsfysica)
Description
With a single proton outside the Z=28 shell closure and spanning the nuclear chart across several magic or quasi-magic neutron shells (N=20,28,40,50), the copper isotopes are ideal to study the evolution of magicity. Of particular interest is the isotope 57Cu with a single proton outside the controversial doubly-magic, N=Z=28, nucleus 56Ni. The earlier measurement of the magnetic moment of 57Cu by beta-NMR pointed towards a large breaking of the 56Ni core but attempts to confirm this measurement with the in-source laser spectroscopy technique at a hot-target ISOL facility has been unsuccessful.
In a recent campaign, in-gas-cell laser ionization spectroscopy coupled to mass separation and nuclear decay identification has been performed for the first time at the LISOL facility (Belgium). The magnetic dipole moments of 58-59Cu was confirmed but that of 57Cu shows a large discrepancy from the published value. The new proposed value is in good agreement with empirical and theoretical predictions, supporting the magic nature of the 56Ni core in the ground state of 57Cu. The g-factor of the odd-odd 58Cu isotope is compared to empirical g-factors and points similarly to a configuration consistent with a magic 56Ni core.
The success of this measurement opens also new possibilities for future gas-catcher facilities such as S3 at GANIL.
| Is this an invited talk? (please answer yes or no) | no |
|---|---|
| Would you prefer your contribution to be an oral presentation? (please answer yes or no) | yes |
| Would you prefer your contribution to be a poster presentation? (please answer yes or no) | possibly |
Author
Dr
Cocolios Thomas Elias
(Instituut voor Kern- en Stralingsfysica)
Co-authors
Prof.
Andrei N Andreyev
(University of Western Scotland)
Dr
Beyhan Bastin
(GANIL)
Dr
Dieter Pauwels
(Instituut voor Kern- en Stralingsfysica)
Mr
Jeroen Buscher
(Instituut voor Kern- en Stralingsfysica)
Mr
Johnny Gentens
(Instituut voor Kern- en Stralingsfysica)
Ms
Jytte Elseviers
(Instituut voor Kern- en Stralingsfysica)
Prof.
Mark Huyse
(Instituut voor Kern- en Stralingsfysica)
Mr
Nick Bree
(Instituut voor Kern- en Stralingsfysica)
Mr
Paul Van den Bergh
(Instituut voor Kern- en Stralingsfysica)
Prof.
Piet Van Duppen
(Instituut voor Kern- en Stralingsfysica)
Dr
Tetsu Sonoda
(RIKEN)
Dr
Yuri Kudryavtsev
(Instituut voor Kern- en Stralingsfysica)
