2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39498It was recently claimed that single stop production at the Tevatron, occurring via R-parity (and baryon number) violating couplings, could lead to observable signals. In this talk I present some results of a work in progress, showing that rare B decays and K0-K0bar mixing strongly constrain such a possibility.4 pages, 1 Postscript figure. Talk given at the XXXV Rencontres de Moriond, Electroweak Interactions and Unified Theories, Les Arcs, March 11-18 2000High Energy Physics - Phenomenologytext