Probing the $_{31}\mathrm{Ga}$ ground-state properties in the region near $Z=28$ with high-resolution laser spectroscopy
- Farooq-Smith, G J
- Vernon, A R
- Billowes, J
- Binnersley, C L
- Bissell, M L
- Cocolios, T E
- Day Goodacre, T
- de Groote, R P
- Flanagan, K T
- Franchoo, S
- Garcia Ruiz, R F
- Gins, W
- Lynch, K M
- Marsh, B A
- Neyens, G
- Rothe, S
- Stroke, H H
- Wilkins, S G
- Yang, X F
DOIAbstract
Magnetic-dipole and electric-quadrupole moments for $^{65,67,69,75,79–82}\mathrm{Ga}$ are reported using the Collinear Resonance Ionization Spectroscopy (CRIS) technique at the ISOLDE facility, CERN. The moments of $^{65}\mathrm{Ga}$ have been measured for the first time: $\mu =+1.775(3)\mu_N$ and $Q_s=+21.0(15)e\mathrm{fm}2$. These results are compared to shell-model calculations using the GXPF1 and JUN45 interactions and the trends of the moments approaching the region of the doubly magic $^{56}\mathrm{Ni}$ are discussed. Additionally, new values for the change in mean-square charge radii for $^{65}\mathrm{Ga}$ and $^{67}\mathrm{Ga}$ allow investigation into the odd-even staggering in the region below $N=40$
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