Integrable S-matrices, massive and massless modes and the AdS2 × S2 superstring

@article{Hoare2014IntegrableSM,
  title={Integrable S-matrices, massive and massless modes and the AdS2 × S2 superstring},
  author={Ben Hoare and Antonio Pittelli and Alessandro Torrielli},
  journal={Journal of High Energy Physics},
  year={2014},
  volume={2014},
  pages={1-41}
}
A bstractWe derive the exact S-matrix for the scattering of particular representations of the centrally-extended psu1|12$$ \mathfrak{p}\mathfrak{s}\mathfrak{u}{\left(1\Big|1\right)}^2 $$ Lie superalgebra, conjectured to be related to the massive modes of the light-cone gauge string theory on AdS2 × S2 × T6. The S-matrix consists of two copies of a centrally-extended psu1|1$$ \mathfrak{p}\mathfrak{s}\mathfrak{u}\left(1\Big|1\right) $$ invariant S-matrix and is in agreement with the tree-level… 

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