Twistor Space Structure Of One-Loop Amplitudes In Gauge Theory
Freddy Cachazo, Peter Svrcek, Edward Witten
Abstract
We analyze the twistor space structure of certain one-loop amplitudes in gauge theory. For some amplitudes, we find decompositions that make the twistor structure manifest; for others, we explore the twistor space structure by finding differential equations that the amplitudes obey.
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