The Triangle Anomaly in the Triple-Regge Limit

TL;DR

This paper investigates the presence of the U(1) triangle anomaly as an infrared divergence within the six-reggeon interaction vertex, derived from a complex non-planar Feynman diagram in high-energy quark scattering.

Contribution

It identifies the triangle anomaly in the triple-Regge limit, revealing a novel infrared divergence in a specific six-reggeon interaction vertex from non-planar diagrams.

Findings

Triangle anomaly appears as an infrared divergence.

Anomaly linked to non-planar Feynman diagrams.

Results enhance understanding of high-energy quark interactions.

Abstract

The U(1) triangle anomaly is present, as an infra-red divergence, in the six-reggeon triple-regge interaction vertex obtained from a maximally non-planar Feynman diagram in the full triple-regge limit of three-to-three quark scattering.