PROTON BAND CROSSING IN THE SUPERDEFORMED NUCLEUS ~(144)Gd

摘要

The features of the superdeformed band in ~(144)Gd have been studied. An i_(13/2) proton crossing has been observed in ~(144)Gd which is absent in the isotope ~(146)Gd. This has been explained as a deformation effect. The absence of this crossing in the superdeformed bands of the neighbouring N = 80 isotones of ~(144)Gd can be understood in terms of a blocking effect.