2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217946We propose a scheme for determining a generalised scaling function, namely the Sudakov factor in a peculiar double scaling limit for high spin and large twist operators belonging to the $sl(2)$ sector of planar ${\cal N}=4$ SYM. In particular, we perform explicitly the all-order computation at strong 't Hooft coupling regarding the first (contribution to the) generalised scaling function. Moreover, we compare our asymptotic results with the numerical solutions finding a very good agreement and evaluate numerically the non-asymptotic contributions. Eventually, we illustrate the agreement and prediction on the string side.references added, typos corrected; Latex file plus one figureHigh Energy Physics - TheoryStrong coupling for planar ${\cal N}=4$ SYM theory: an all-order resulttext