THEORY OF TIME SCALE IN STRUCTURAL ISOMERIZATION OF CLUSTERS

  Tomohiro Yanao and Kazuo Takatsuka

  Graduate School of Arts and Sciences, The University of Tokyo, Tokyo,
Japan

  A statistical theory which accounts for the dependence of average
lifetimes of
  locally stable structures of Ar\raisebox{-0.7ex}{\scriptsize 7}-like
clusters on the total
  internal energy is presented. This theory is based on a hypothesis
about the geometrical      structures of potential surfaces and is valid
for clusters of high energy which are in the    so-called liquidlike
phase.