Scattering and Unitarity Methods in Two Dimensions

Abstract

This is the draft version of the paper.This version of the publication may differ from the final published version. Permanent Unitarity methods for scattering in two dimensionsValentina Forini, Lorenzo Bianchi and Ben HoareAbstract The standard unitarity-cut method is applied to several massive twodimensional models, including the world-sheet AdS 5 × S 5 superstring, to compute 2 → 2 scattering S-matrices at one loop from tree level amplitudes. Evidence is found for the cut-constructibility of supersymmetric integrable models, while for models without supersymmetry (but integrable) the missing rational terms can be interpreted as a shift in the coupling.

Precision calculation of 1/4-BPS Wilson loops in AdS5×S5

“…between Polyakov and Nambu-Goto 1-loop partition function around non-trivial solutions [56]. Further oneloop computations reproducing predictions from quantum integrability are in [57][58][59][60]. 35 See next section for a comment on the coincidence of the coefficient P0(σ) of the higher-derivative term.…”