Analytic structure of the 8-point scattering amplitude in multi-Regge kinematics in N=4 SYM: conformal Regge pole and Regge cut contributions

preprint2020arXivOpen access

Abstract

Continuing our investigations of the analytic structure of the 2->n scattering amplitudes in the planar limit of N=4 SYM in multi-Regge kinematics we compute, in all kinematic regions, the Regge cut contributions of the 2->6 process in leading order. Compared to previous studies of the 2->4 and the 2->5 processes we encounter two new features: the 3-reggon cut and the product of two 2-reggeon cut contributions.

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