A Four-Reggeon Vertex for Z3 Twisted Fermionic Fields
Niclas Engberg, Bengt E. W. Nilsson
Abstract
Using operator sewing techniques we construct the Reggeon vertex involving four external Z3-twisted complex fermionic fields. Generalizing a procedure recently applied to the ordinary Ramond four-vertex, we deduce the closed form of the Z3 vertex by demanding it to reproduce the results obtained by sewing.
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