Double-strangeness production in Λp →k+X reaction

We investigate S=-2 production from the Λp→K+X reactions within the effective Lagrangian approach. The Λp→K+ΛΛ and Λp→K+Ξ-p reactions are considered to find the lightest S=-2 system, which is H-dibaryon. We assume that the H(2250)→ΛΛ, and H(2270)→Ξ-p decays with the intrinsic decay width of 1 MeV. According to our calculations, the total cross sections for Λp→K+ΛΛ and Λp→K+Ξ-p reactions were found to be of the order of a few μb in the Λ beam momentum range of up to 5 GeV/c. Furthermore, the direct access of information regarding the interference patterns between the H-dibaryon and nonresonant contributions was demonstrated.