Rapidity correlations in Lambda baryon and proton production in hadronic Z(0) decays

In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, rapidity correlations of Λ-Λ, proton-proton, and Λ-proton pairs are compared with each other and with the predictions of the string fragmentation model. For Λp pairs, the additional correlation with respect to charged kaons is also analysed