TIME-RESOLVED DIFFERENTIAL FRAGMENTATION CROSS-SECTIONS OF C-60(+)+C-60 COLLISIONS

The collision of thermally excited C60+ with a cross beam gas target of C60 clusters has been simulated employing the molecular-dynamics statistical-trajectory-ensemble method and the density functional theory linear combination of atomic orbitals local-density approximation. The time-resolved double-differential cross sections of the mass fragmentation and kinetic-energy angular distribution, and the mass-resolved fragment vibrational excitation and mean coordination number have been calculated with improved statistics from the newly available simulation data. The time-resolved double-differential cross sections show the causal order and other details of the fragmentation process. The fragmentation pattern of the small fragment sizes (N≤20) where this simulation has the most reliable statistics is given special attention. © 1995 The American Physical Society.