Alignment delays in the N = Z nuclei (72)Kr, (76)Sr, and (80)Zr.

摘要: The ground state rotational bands of the N = Z nuclei (72)Kr, (76)Sr, and (80)Zr have been extended into angular momentum region where rotation alignment particles is normally expected. By measuring moments inertia these we observed a consistent increase in frequency required to start pair breaking, when compared neighboring nuclei. (72)Kr shows most marked effect. It has widely suggested that "delayed alignments" arise from np-pairing correlations. However, frequencies are very sensitive shape degrees freedom normal pairing, so new experimental observations still open interpretation.