Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-06-02
JHEP 09(2011)092
Physics
High Energy Physics
High Energy Physics - Theory
40 pages; Replaced with published version. Appendix and comments added
Scientific paper
10.1007/JHEP09(2011)092
We investigate the quantum integrability of the Alday-Arutyunov-Frolov (AAF) model by calculating the three-particle scattering amplitude at the first non-trivial order and showing that the S-matrix is factorizable at this order. We consider a more general fermionic model and find a necessary constraint to ensure its integrability at quantum level. We then show that the quantum integrability of the AAF model follows from this constraint. In the process, we also correct some missed points in earlier works.
Melikyan Armen
Pinzul Aleksandr
Rivelles Victor O.
Weber Günter
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