English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The high-energy behavior of N=4 SYM elastic amplitudes at strong coupling isstudied by means of the AdS/CFT correspondence. We consider the eikonal methodproposed by Janik and one of the authors, where the relevant minimal surface isa "generalized helicoid" in hyperbolic space ("Euclidean AdS_5"), from whichthe physical amplitude is obtained after an appropriate analytic continuation.We then compare our results with those obtained, using a minimal surface inAdS_5 momentum space, by Alday and Maldacena for gluon-gluon scattering, and byBarnes and Vaman for quark-quark scattering ("Alday-Maldacena approach").Exploiting a conformal transformation, we show that the eikonal amplitudes aredominated by the Euclidean version of the cusp contribution found in theAlday-Maldacena approach. The amplitudes in the two approaches are of Reggetype at high-energy and with the same logarithmic Regge trajectoryindependently of the kind of colliding particles, in agreement with theexpected universality of Regge trajectories.

Eikonal Approach to N=4 SYM Regge Amplitudes in the AdS/CFT Correspondence