No abstract available

No abstract available

No abstract available

[en] A Reply to the Comment by D. T. Yordanov et al.

[en] Intermediate-energy heavy-ion collisions can produce a spin polarization of the projectile-like species. Spin polarization has been observed for both nucleon removal and nucleon pickup processes. Qualitative agreement with measured spin polarization as a function of the momentum of the projectile-like fragment is found in a kinematical model that considers conservation of linear and angular momentum and assumes peripheral interactions between the fast projectile and target. Improvements to the kinematical model are discussed that aim to achieve quantitative agreement with spin polarization data from both the nucleon removal and pickup processes

[en] The g factors of the 2₁⁺ states in ⁵⁴Fe and ⁵⁸Fe have been measured relative to the 2₁⁺ state g factor of ⁵⁶Fe using the transient-field technique in inverse kinematics. The results are in satisfactory agreement with recent shell model calculations in the fp model space. For ⁵⁶Fe and ⁵⁸Fe the g factors approach Z/A and are therefore also consistent with collective interpretations of these 2⁺ states

[en] The transient-field technique has been used to measure the g factor of the 2₁⁺ state in ⁵⁶Fe relative to the independently determined g factor of the first 5/2^- state in ⁵⁷Fe. The new result for ⁵⁶Fe agrees with previous measurements but is more precise. Implications for calibrating the transient field and g-factor measurements in the fp region are discussed

[en] Intermediate-energy heavy-ion collisions can produce a spin polarization of the projectile-like species. Spin polarization has been observed for both nucleon removal and nucleon pickup processes. Qualitative agreement with measured spin polarization as a function of the momentum of the projectile-like fragment is found in a kinematic model that considers conservation of linear and angular momentum and assumes peripheral interactions between the fast projectile and target. Better quantitative agreement was reached by including more realistic angular distributions and deorientation caused by γ-ray emission and by correcting for the out-of-plane acceptance. The newly introduced corrections were found to apply to both nucleon removal and nucleon pickup processes

[en] The β^- decay of the exotic ³⁰Ne (N=20) is reported. For the first time, the low-energy level structure of the N=19, ³⁰Na (T_Z=4), is obtained from β-delayed γ spectroscopy using fragment-β-γ-γ coincidences. The level structure clearly displays ''inversion,'' i.e., intruder states with mainly 2p2h configurations displacing the normal states to higher excitation energies. The good agreement in excitation energies and the weak and electromagnetic decay patterns with Monte Carlo shell model calculations with the SDPF-M interaction in the sdpf valence space confirms the small d_3/2-f_7/2 shell gap. The relative position of the normal dominant and intruder dominant excited states provides valuable information to understand better the N=20 shell gap

[en] The β decay of ³³Mg (N=21) presented in this Letter reveals intruder configurations in both the parent and the daughter nucleus. The lowest excited states in the N=20 daughter nucleus, ³³Al, are found to have nearly 2p-2h intruder configuration, thus extending the ''island of inversion'' beyond Mg. The allowed direct β-decay branch to the 5/2⁺ ground state of the daughter nucleus ³³Al implies positive parity for the ground state of the parent ³³Mg, contrary to an earlier suggestion of negative parity from a g-factor measurement. An admixture of 1p-1h and 3p-3h configurations is proposed for the ground state of ³³Mg to explain all of the experimental observables