  Within the framework of the Lanzhou quantum molecular dynamics (LQMD)
transport model, the nuclear fragmentation induced by low-energy antiprotons
has been investigated thoroughly. A coalescence approach is developed for
constructing the primary fragments in phase space. The secondary decay process
of the fragments is described by the well-known statistical code. It is found
that the localized energy released in antibaryon-baryon annihilation is
deposited in a nucleus mainly via pion-nucleon collisions, which leads to the
emissions of pre-equilibrium particles, fission, evaporation of nucleons and
light fragments etc. The strangeness exchange reactions dominate the hyperon
production. The averaged mass loss increases with the mass number of target
nucleus. A bump structure in the domain of intermediate mass for heavy targets
appears owing to the contribution of fission fragments.
