2006/11/01 by Hratchia M. Babujian, Angela Foerster, Michael Karowski · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1088/1751-8113/41/27/275202
published as J.Phys.A41:275202,2008 · This work is dedicated to the 75th anniversary of H. Bethe's foundational work on the Heisenberg chain
arxiv created 2006/11/01 · arxiv updated 2009/12/01
The form factor equations are solved for an SU(N) invariant S-matrix under the assumption that the anti-particle is identified with the bound state of N-1 particles. The solution is obtained explicitly in terms of the nested off-shell Bethe ansatz where the contribution from each level is written in terms of multiple contour integrals.