An alternative S-matrix for N=6 Chern-Simons theory ?

Understand

We have recently proposed an S-matrix for the planar limit of the N=6 superconformal Chern-Simons theory of Aharony, Bergman, Jafferis and Maldacena which leads to the all-loop Bethe ansatz equations conjectured by Gromov and Vieira.

• An unusual feature of this proposal is that the scattering of A and B particles is reflectionless.
• We consider here an alternative S-matrix, for which A-B scattering is not reflectionless.
• We argue that this S-matrix does not lead to the Bethe ansatz equations which are consistent with perturbative computations.