Four point function of R-currents in N=4 SYM in the Regge limit at weak coupling

Details Four point function of R-currents in N=4 SYM in the Regge limit at weak coupling Four point function of R-currents in N=4 SYM in the Regge limit at weak coupling

2008-03-10

arxiv.org/abs/0803.1423v2

Phys.Rev.D78:016004,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 10 figures, typos corrected

Scientific paper

10.1103/PhysRevD.78.016004

We compute, in N=4 super Yang-Mills theory, the four point correlation function of R-currents in the Regge limit in the leading logarithmic approximation at weak coupling. Such a correlator is the closest analog to photon-photon scattering within QCD, and there is a well-defined procedure to perform the analogous computation at strong coupling via the AdS/CFT correspondence. The main result of this paper is, on the gauge theory side, the proof of Regge factorization and the explicit computation of the R-current impact factors.

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