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Properties of the three-reggeon vertex in string theories

Authors
Journal
Nuclear Physics B
0550-3213
Publisher
Elsevier
Publication Date
Volume
282
Identifiers
DOI: 10.1016/0550-3213(87)90678-x

Abstract

Abstract We construct in a very simple way a three-reggeon vertex that includes also the contribution of the ghost coordinates, both for the bosonic and fermionic string. We show its connection with the vertex operators that are usually used to construct dual amplitudes and with the light-cone three-string vertex. Finally, we prove its invariance under BRST transformations.

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