Unitarity methods for scattering in two dimensions
Forini, Valentina · Bianchi, Lorenzo · Hoare, Ben
الأصل · EN
The standard unitarity-cut method is applied to several massive two-dimensional models, including the world-sheet AdS₅× S⁵ 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.
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