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arXiv · 1207.4204

Multi-Regge Limit of the n-Gluon Bubble Ansatz

J. Bartels·V. Schomerus·M. Sprenger
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Abstract

We investigate n-gluon scattering amplitudes in the multi-Regge region of N=4 supersymmetric Yang-Mills theory at strong coupling. Through a careful analysis of the thermodynamic bubble ansatz (TBA) for surfaces in AdS5 with n-g(lu)on boundary conditions we demonstrate that the multi-Regge limit probes the large volume regime of the TBA. In reaching the multi-Regge regime we encounter wall-crossing in the TBA for all n>6. Our results imply that there exists an auxiliary system of algebraic Bethe ansatz equations which encode valuable information on the analytical structure of amplitudes at strong coupling.

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J. Bartels, V. Schomerus, M. Sprenger. 2012-07-17. Multi-Regge Limit of the n-Gluon Bubble Ansatz. https://doi.org/10.1007/jhep11(2012)145

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