g factor of the $^{44}$Cl ground state: Probing the reduced Z = 16 and N = 28 gaps
M. de Rydt
(1)
,
J.M. Daugas
(2)
,
Francois de Oliveira Santos
(3)
,
L. Gaudefroy
(2)
,
S. Grévy
(3)
,
D. Kameda
(4)
,
V. Kumar
(5)
,
Radomira Lozeva
(1)
,
T. J. Mertzimekis
(6)
,
Pierre Morel
(2)
,
T. Nagatomo
(4)
,
G. Neyens
(1)
,
L. Perrot
(7)
,
O. Sorlin
(3)
,
C. Stodel
(3)
,
J.C. Thomas
(3)
,
N. Vermeulen
(1)
,
P. Vingerhoets
(1)
1
IKS -
Instituut voor Kern-en Stralingsfysica
2 DAM/DIF - DAM Île-de-France
3 GANIL - Grand Accélérateur National d'Ions Lourds
4 RIKEN RNC - RIKEN Nishina Center for Accelerator-Based Science [Wako]
5 Weizmann Institute of Science [Rehovot, Israël]
6 University of Ioannina
7 IPNO - Institut de Physique Nucléaire d'Orsay
2 DAM/DIF - DAM Île-de-France
3 GANIL - Grand Accélérateur National d'Ions Lourds
4 RIKEN RNC - RIKEN Nishina Center for Accelerator-Based Science [Wako]
5 Weizmann Institute of Science [Rehovot, Israël]
6 University of Ioannina
7 IPNO - Institut de Physique Nucléaire d'Orsay
Francois de Oliveira Santos
- Fonction : Auteur
- PersonId : 176640
- IdHAL : francois-de-oliveira-santos
- ORCID : 0000-0003-4539-5985
- IdRef : 157826392
C. Stodel
- Fonction : Auteur
- PersonId : 177922
- IdHAL : christelle-stodel
- ORCID : 0000-0003-4658-2213
- IdRef : 227006291
J.C. Thomas
- Fonction : Auteur
- PersonId : 738662
- IdHAL : jean-charles-thomas
- ORCID : 0000-0001-6618-9772
Résumé
The g factor of the 44Cl ground state is measured at the LISE fragment separator at the Grand Accélérateur National d'Ions Lourds (GANIL) using the β nuclear magnetic resonance technique, resulting in g(44Cl) = (−)0.2749(2). An analysis of the g factor value and of the theoretical level scheme in the shell-model framework reveals the presence of odd-proton s1/2 configurations and neutron excitation across the N = 28 shell gap in the ground state of 44Cl. In addition, the measured g factor strongly supports a 2− spin assignment for the 44Cl ground state.