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By studying the effect of the order(\alpha'^3) string theory corrections totype IIB supergravity, including those corrections involving the Ramond-Ramondfive-form field strength, we obtain the corrected equations of motion of anAbelian perturbation of the AdS_5-Schwarzschild black hole. We then use thegauge theory/string theory duality to examine the coupling-constant dependenceof vector current correlators associated to a gauged U(1) sub-group of theglobal R-symmetry group of strongly-coupled N=4 supersymmetric Yang-Millstheory at finite temperature. The corrections induce a set of higher-derivativeoperators for the U(1) gauge field, but their effect is highly suppressed. Wethus find that the order(\alpha'^3) corrections affect the vector correlatorsonly indirectly, through the corrected metric. We apply our results toinvestigate scattering off a supersymmetric Yang-Mills plasma at low and highenergy. In the latter regime, where Deep Inelastic Scattering is expected tooccur, we find an enhancement of the plasma structure functions in comparisonwith the infinite 't Hooft coupling result.

Holographic current correlators at finite coupling and scattering off a supersymmetric plasma