We present a new analysis of the pairing vibrations around Ni-56, With emph
asis on odd-odd nuclei. This analysis of the experimental excitation energi
es is based on the subtraction of average properties that include the full
symmetry energy together with the volume, surface, and Coulomb terms. The r
esults clearly indicate a collective behavior of the isovector pairing vibr
ations and do not support any appreciable collectivity in the isoscalar cha
nnel. (C) 2000 Published by Elsevier Science B.V. All rights reserved.