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One- and two-loop checks for the AdS<sub>3</sub>×<i>S</i><sup>3</sup>×<i>T</i><sup>4</sup>superstring with mixed flux
We compute the one-loop worldsheet S-matrix for the superstring in AdS3 × S3 × T4 supported by a combination of RR and NSNS flux in the massive sector. In the appropriate regularization scheme it agrees with the S-matrix found from symmetry considerations including the proposed dressing phases. As previously observed …