A connection between R-invariants and Yang-Baxter R-operators in $$ \mathcal{N} $$ = 4 super-Yang-Mills theory
V.K. Kozin (Science Institute, University of Iceland, Dunhagi 3, IS-107, Reykjavik, Iceland, ITMO University, Kronverkskiy prospekt 49, Saint Petersburg, 197101, Russia, St. Petersburg Academic University of the Russian Academy of Sciences, St. Petersburg, 194021, Russia)
The BCFW recursion relation in $$ \mathcal{N} $$ = 4 super-Yang-Mills theory is solved using Yang-Baxter R-operators in the NMHV sector. Explicit expressions for ℛ-invariants are obtained in terms of the chains of R-operators acting on an appropriate basic state.