Near threshold Λ and Σ production in pp collisions

Abstract

A model calculation for the reactions pp → pΛK + and pp → NΣK near their thresholds is presented. It is argued that the experimentally observed strong suppression of Σ 0 production compared to Λ production at the same excess energy could be due to a destructive interference between the π and K exchange contributions in the reaction pp → pΣ 0 K… (More)

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