quadrupole moment

[paper] Ground-state electric quadrupole moment of 31Al

Ground-state electric quadrupole moment of 31Al

D. Nagae et al.

The ground-state electric quadrupole moment of 31Al(Iπ=5/2+,T1/2=644(25) ms) has been measured by means of β-ray-detected nuclear magnetic resonance spectroscopy using a spin-polarized 31Al beam produced in the projectile fragmentation reaction. The obtained Q moment, |Qexp(31Al)|=112(32) e mb, is in agreement with conventional shell model calculations within the sd valence space. Previous results on the magnetic moment also support the validity of the sd model in this isotope, and thus it is concluded that 31Al is located outside of the island of inversion

[paper] Quadrupole moments of some nuclei around the mass of A∼80: 76,78,80,82,84Kr and neighboring Se isotope

Quadrupole moments of some nuclei around the mass of A∼80: 76,78,80,82,84Kr and neighboring Se isotope

N. Turkan et al.

doi: 10.1134/S1063778809060088

The quadrupole moments of 76,78,80,82,84,88Kr and 74,76,78,80,82Se isotopes are investigated in terms of the interacting boson model (IBM), and it was found that a good description of them can also be concluded in this model. Before the quadrupole moments were calculated, the positive-parity states and electromagnetic-transition rates (B(E2)) of even-mass Kr nuclei have also been obtained within the framework of IBM. It was seen that there is a good agreement between the presented results and the previous experimental data. The quadrupole moments of the neighboring Se isotopes were also obtained and it was seen that the results are satisfactorily agree well with the previous experimental data.