Comments on the Boundary Scattering Phase
Abstract
Description
We present a simple solution to the crossing equation for an open string worldsheet reflection matrix, with boundaries preserving a SU(1|2)^2 residual symmetry, which constrains the boundary dressing factor. In addition, we also propose an analogous crossing equation for the dressing factor where extra boundary degrees of freedom preserve a SU(2|2)^2 residual symmetry.
14 pages, 2 figures; v2: affiliation corrected
14 pages, 2 figures; v2: affiliation corrected