Baryon Production in Jet Fragmentation and γ-Decay

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Abstract
The sizable baryon-antibaryon production, observed in quark and gluon jets, has been considered in different phenomenological contexts in particular in terms of diquark-antidiquark ("tunneling") production along the colour field or by means of colour fluctuations in the field. We show that when the colour fluctuations are treated by means of the uncertainty relation, the two frameworks become very similar and that the resulting "effective diquark" model presents a stable and useful phenomenological tool for treating the properties of baryon-antibaryon production. We also present an analysis of the gluonic decays of the γ-resonances which strongly suppoerts the notion of gluons as excitations on the stringlike colour triplet forcefield.