World-sheet scattering in AdS_5 x S^5 at two loops

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We study the AdS_5 x S^5 sigma-model truncated to the near-flat-space limit to two-loops in perturbation theory. In addition to extending previously known one-loop results to the full SU(2|2)^2 S-matrix we calculate the two-loop correction to the dispersion relation and then compute the complete two-loop S-matrix. The result of the perturbative calculation can be compared with the appropriate limit of the conjectured S-matrix for the full theory and complete agreement is found.
26pages, 3 figures

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High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/205641

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0704.3891
 http://arxiv.org/abs/0704.3891
 JHEP0708:051,2007
 doi:10.1088/1126-6708/2007/08/051

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arXiv