We propose a closed expression for the three loop anomalous dimension of a class of twist-3 operators built with gauge fields and covariant derivatives. To this aim, we solve the long-range Bethe Ansatz equations at finite spin and provide a consistent analytical formula obtained assuming maximal transcendentality violation as suggested by the known one-loop anomalous dimension. The final result reproduces the univer- sal cusp anomalous dimension and obeys recursion relations inspired by the principle of reciprocity invariance.
Three loop anomalous dimensions of twist-3 gauge operators in N=4 SYM,
BECCARIA, Matteo
2007-01-01
Abstract
We propose a closed expression for the three loop anomalous dimension of a class of twist-3 operators built with gauge fields and covariant derivatives. To this aim, we solve the long-range Bethe Ansatz equations at finite spin and provide a consistent analytical formula obtained assuming maximal transcendentality violation as suggested by the known one-loop anomalous dimension. The final result reproduces the univer- sal cusp anomalous dimension and obeys recursion relations inspired by the principle of reciprocity invariance.File in questo prodotto:
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