Phys.Rev.Lett. 71, 2180 (1993)

U.Kneissl, A.Zilges, J.Margraf, I.Bauske, P.von Brentano, H.Friedrichs, R.D.Heil, R.-D.Herzberg, H.H.Pitz, B.Schlitt, C.Wesselborg

First Experimental Evidence for Two-Phonon Octupole-γ-Vibrational Excitations in Deformed Nuclei

NUCLEAR STRUCTURE ^156,158Gd, ¹⁶⁸Er, ¹⁷²Yb; calculated levels, B(λ). ¹⁵⁰Nd, ^156,158Gd, ^162,164Dy, ^166,168Er, ¹⁷²Yb; analyzed data; deduced two-phonon excitation role. Interacting sdf-boson approximation, dynamic collective models.

doi: 10.1103/PhysRevLett.71.2180