Abstract
Specific features of strange-particle production in\(\bar p\)-nuclei annihilation are reviewed. The inclusive Λ/Ks0 production rate, sensitive to the relative weight of multinucleon annihilations, shows an enhancement in heavier nuclei with respect to the\(\bar p\)p and\(\bar p\)d annihilations. Rapidity distributions, obtained in the PS179 experiment at LEAR and in an experiment at KEK, seem to support the hypothesis of different effective targets for Λ’s and Ks0’s. The behaviour of the associated-to-strangeness pion rapidity distribution suggests the presence of a leading effect, bringing away a fraction of momentum not absorbed by any target system. The experimental signatures are analysed in the framework of theoretical models: the rescattering approach in the context of a conventional hadronic picture and a model of supercooled quark matter formation. Finally, the observed leading mesons can be included in a quark picture describing beam fragmentation.
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