DOUBLE STRANGENESS PRODUCTION IN LOW-ENERGY ANTIPROTON-NUCLEUS ANNIHILATION

Double strangeness production, i.e. the net production of two s quarks and two (s) over bar quarks (carried inside hadrons) in antiproton-nu cleus annihilations is investigated theoretically. The various mechani sms are identified, both for conventional B = 0 and for unusual B = 1, 2 annihilations. The double strangeness yield is estimated. The lack o f precise input data for some reactions is underlined. The results are compared with the recent data of the DIANA collaboration. They seem t o be consistent with the conventional processes.