Probing nuclear structures in the vicinity of 78Ni with β- and βn-decay spectroscopy of 84Ga
K. Kolos
(1)
,
D. Verney
(1)
,
F. Ibrahim
(1)
,
F. Le Blanc
(1, 2)
,
S. Franchoo
(1)
,
K. Sieja
(2)
,
F. Nowacki
(2)
,
C. Bonnin
(1)
,
M. Cheikh Mhamed
(1)
,
P. V. Cuong
,
F. Didierjean
(2)
,
G. Duchêne
(2)
,
S. Essabaa
(1)
,
G. Germogli
(1)
,
L. H. Khiem
,
C. Lau
(1)
,
I. Matea
(1)
,
M. Niikura
,
B. Roussière
(1)
,
I. Stefan
(1)
,
D. Testov
(1)
,
J.C. Thomas
(3)
K. Sieja
- Function : Author
- PersonId : 738608
- IdHAL : kamila-sieja
- ORCID : 0000-0001-7736-656X
F. Nowacki
- Function : Author
- PersonId : 748924
- IdHAL : frederic-nowacki
- ORCID : 0000-0002-7854-8717
P. V. Cuong
- Function : Author
G. Duchêne
- Function : Author
- PersonId : 742772
- IdHAL : gilbert-duchene
- IdRef : 084132604
L. H. Khiem
- Function : Author
M. Niikura
- Function : Author
- PersonId : 762085
- ORCID : 0000-0002-5940-2667
B. Roussière
- Function : Author
- PersonId : 747599
- IdHAL : brigitte-roussiere
- ORCID : 0000-0002-4731-6972
I. Stefan
- Function : Author
- PersonId : 179537
- IdHAL : iulian-stefan
- ORCID : 0000-0001-7923-8908
- IdRef : 114633401
D. Testov
- Function : Author
- PersonId : 762754
- ORCID : 0000-0003-3193-5311
J.C. Thomas
- Function : Author
- PersonId : 738662
- IdHAL : jean-charles-thomas
- ORCID : 0000-0001-6618-9772
Abstract
The decay of 84Ga has been reinvestigated at the PARRNe online mass separator of the electron-driven installation ALTO at IPN Orsay. The nominal primary electron beam of 10 μA (50 MeV) on a 238UCx target in combination with resonant laser ionization were used for the first time at ALTO. Improved level schemes of the neutron-rich 83,84Ge (Z=32) isotopes were obtained. The experimental results are compared with the state-of-the-art shell model calculations and discussed in terms of collectivity development in the natural valence space outside the 78Ni core.