Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-08-05
Phys.Rev.D83:045020,2011
Physics
High Energy Physics
High Energy Physics - Theory
11 pages, 4 figures
Scientific paper
10.1103/PhysRevD.83.045020
We perform an analytic continuation of the two-loop remainder function for the six-point planar MHV amplitude in N=4 SUSY, found by Goncharov, Spradlin, Vergu and Volovich from the light-like Wilson loop representation. The remainder function is continued into a physical region, where all but two energy invariants are negative. It turns out to be pure imaginary in the multi-Regge kinematics, which is in an agreement with the predictions based on the Steinmann relations for the Regge poles and Mandelstam cut contributions. The leading term reproduces correctly the expression calculated by one of the authors in the BFKL approach, while the subleading term presents a result, that was not yet found with the use of the unitarity techniques. This supports the applicability of the Wilson loop approach to the planar MHV amplitudes in N=4 SUSY.
Lipatov Lev N.
Prygarin Alex
No associations
LandOfFree
Mandelstam cuts and light-like Wilson loops in N=4 SUSY does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Mandelstam cuts and light-like Wilson loops in N=4 SUSY, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mandelstam cuts and light-like Wilson loops in N=4 SUSY will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-438767