On the Scattering Phase for AdS_5 x S^5 Strings

TL;DR

This paper proposes a phase factor for the worldsheet S-matrix of strings in AdS_5 x S^5, addressing the crossing relation challenge in integrable string theory.

Contribution

It introduces a specific phase factor that appears to solve Janik's crossing relation for the AdS_5 x S^5 string S-matrix.

Findings

Proposed phase factor satisfies crossing symmetry.

Advances understanding of integrability in AdS/CFT correspondence.

Provides a basis for further exact S-matrix calculations.

Abstract

We propose a phase factor of the worldsheet S-matrix for strings on AdS_5 x S^5 apparently solving Janik's crossing relation.