  Formation mechanism of fragments with strangeness in collisions of
antiprotons on nuclei has been investigated within the Lanzhou quantum
molecular dynamics (LQMD) transport approach combined with a statistical model
(GEMINI) for describing the decays of excited fragments. Production of strange
particles in the antiproton induced nuclear reactions is modeled within the
LQMD model, in which all possible reaction channels such as elastic scattering,
annihilation, charge exchange and inelastic scattering in antibaryon-baryon,
baryon-baryon and meson-baryon collisions have been included. A coalescence
approach is developed for constructing hyperfragments in phase space after
de-excitation of nucleonic fragments. The combined approach could describe the
production of fragments in low-energy antiproton induced reactions.
Hyperfragments are formed within the narrower rapidities and lower kinetic
energies. It has advantage to produce heavier hyperfragments and hypernuclides
with strangeness s=-2 (double-$\Lambda$ fragments) and s=1
($\overline{\Lambda}$-fragments) in antiproton induced reactions.
