T. Mathur et Sn. Mukherjee, SIGNATURE INVERSION AND CHANGE IN TRIAXIALITY IN TM-159 AND ER-159, Physical review. C. Nuclear physics, 49(1), 1994, pp. 142-148
A conceptually different interpretation of the excitation energies and
signature inversion in negative parity bands of odd-Z and odd-N nucle
i has been given within the framework of triaxial rotor plus one quasi
particle model. Furthermore, in the present work, evidence has been ob
tained for a triaxial shape transition in these nuclei related to a su
dden decrease in the signature splitting.