Jirina Stone

Abstract:

Magnetic moments of low-lying levels in 81Br have been measured using Coulomb excitation of 81Br beams and the technique of transient magnetic fields with Gd as ferromagnet. In addition, lifetimes have been redetermined for several states employing the Doppler-shift attenuation method and mixing ratios of γ-transitions were deduced from angular correlations. The data are discussed in the framework of the particle-vibrator and the particle-rotor coupling models.

Abstract:

Masses, deformations, radii, two-neutron separation energies and single-particle properties of Si, S, Ar and Ca isotopes are investigated in the framework of the self-consistent mean-field theory. In particular, the role of the N = 28 gap in the neutron-rich isotopes, and differences between proton and neutron deformations are discussed.

Abstract:

A series of low temperature nuclear orientation (LTNO) experiments has been initiated to measure accurately ground-state magnetic dipole moments of a sequence of odd-proton antimony isotopes up to the neutron shell closure at N = 82 using the sensitive technique of nuclear magnetic resonance on oriented nuclei (NMR/ON). The main aim of this investigation is to clarify the single-particle+collective core coupling mechanism in the heavy antimony isotopes and its influence on the value of magnetic dipole moment. This paper reports results of precision measurement of the magnetic dipole moments of 127Sb and 129Sb.