Comment on the Alday-Maldacena solution in calculating scattering amplitude via AdS/CFT

Details Comment on the Alday-Maldacena solution in calculating scattering amplitude via AdS/CFT Comment on the Alday-Maldacena solution in calculating scattering amplitude via AdS/CFT

2007-11-19

arxiv.org/abs/0711.2828v3

JHEP0803:010,2008

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, no figures; v2: refined analysis on a general choice of k-vectors, see eq.(19); v3: presentation is improved, a mista

Scientific paper

10.1088/1126-6708/2008/03/010

Following the recent proposal of Alday and Maldacena to obtain the strong coupling scattering amplitude in N=4 SYM via AdS/CFT, we point out that a unique solution can be obtained by imposing all the Virasoro constraints. In the case of four-gluon scattering, this solution is identical to the Alday-Maldacena solution, which is in accordance with the ansatz of Bern, Dixon and Smirnov. This also solves the moduli space problem of the four-point solution in a recent paper of Mironov, Morozov and Tomaras.

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