The nested SU(N) off-shell Bethe ansatz and exact form factors
Hratchia M. Babujian, Angela Foerster, Michael Karowski
TL;DR
This paper solves form factor equations for an SU(N) invariant S-matrix using a nested off-shell Bethe ansatz, providing explicit solutions through multiple contour integrals, advancing understanding of integrable quantum field theories.
Contribution
It introduces an explicit solution to form factor equations for SU(N) models using a nested off-shell Bethe ansatz with multiple contour integrals, under a specific particle-antiparticle identification.
Findings
Explicit form factor solutions for SU(N) models.
Application of nested off-shell Bethe ansatz to integrable systems.
Representation of contributions at each level via contour integrals.
Abstract
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.
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