Baryons from diquarks ine+e−annihilation

Abstract

We find experimental support for the view that diquarks appear only as spin-0 objects. When their production rate in the color field of a quark from $e^{+}{e}^{-}$ annihilation is described by the appropriate Schwinger formula for scalars, it turns out that they must be substantially lighter than earlier believed in order to explain the baryon yield.