Iterative Structure Within The Five-Particle Two-Loop Amplitude
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چکیده
Freddy Cachazo, ∗ Marcus Spradlin, 3, † and Anastasia Volovich ‡ Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2J 2W9, Canada Institute for Advanced Study, Princeton NJ 08540, USA Michigan Center for Theoretical Physics, Ann Arbor MI 48104, USA Abstract We find an unexpected iterative structure within the two-loop five-gluon amplitude in N = 4 supersymmetric Yang-Mills theory. Specifically, we show that a subset of diagrams contributing to the full amplitude, including a two-loop pentagon-box integral with nontrivial dependence on five kinematical variables, satisfies an iterative relation in terms of one-loop scalar box diagrams. The implications of this result for the possible iterative structure of the full two-loop amplitude are discussed.
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تاریخ انتشار 2006