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  1. Pubblicazioni

Two-dimensional S-matrices from unitarity cuts

Articolo
Data di Pubblicazione:
2013
Abstract:
Using unitarity methods, we compute, for several massive two-dimensional models, the cut-constructible part of the one-loop 2 → 2 scattering S-matrices from the tree-level amplitudes. We apply our method to various integrable theories, finding evidence that for supersymmetric models the one-loop S-matrix is cut-constructible, while for models without supersymmetry (but with integrability) the missing rational terms are proportional to the tree-level S-matrix and therefore can be interpreted as a shift in the coupling. Finally, applying our procedure to the world-sheet theory for the light-cone gauge-fixed AdS5 × S 5 superstring we reproduce, at one-loop in the near-BMN expansion, the S-matrix known from integrability techniques. © 2013 SISSA, Trieste, Italy.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
AdS-CFT Correspondence; Field Theories in Lower Dimensions; Integrable Field Theories
Elenco autori:
Bianchi L.; Forini V.; Hoare B.
Autori di Ateneo:
BIANCHI Lorenzo
Link alla scheda completa:
https://iris.unito.it/handle/2318/1849048
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1849048/962102/1304.1798.pdf
Pubblicato in:
JOURNAL OF HIGH ENERGY PHYSICS
Journal
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