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ID: 314788.0, MPI für Gravitationsphysik / Duality & Integrable Structures
Transcendentality and Crossing
Authors:Beisert, Niklas; Eden, Burkhard U.; Staudacher, Matthias
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Journal of Statistical Mechanics
Journal Abbrev.:07
Sequence Number of Article:P01021
Review Status:not specified
Audience:Not Specified
Abstract / Description:We discuss possible phase factors for the S-matrix of planar N=4 gauge theory, leading to modifications at four-loop order as compared to an earlier proposal. While these result in a four-loop breakdown of perturbative BMN-scaling, Kotikov-Lipatov transcendentality in the universal scaling function for large-spin twist operators may be preserved. One particularly natural choice, unique up to one constant, modifies the overall contribution of all terms containing odd zeta functions in the earlier proposed scaling function based on a trivial phase. Excitingly, we present evidence that this choice is non-perturbatively related to a recently conjectured crossing-symmetric phase factor for perturbative string theory on AdS_5xS^5 once the constant is fixed to a particular value. Our proposal, if true, might therefore resolve the long-standing AdS/CFT discrepancies between gauge and string theory.
External Publication Status:published
Document Type:Article
Communicated by:Niklas Beisert
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
MPI für Gravitationsphysik/Duality & Integrable Structures
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