Loops in Twistor Space

Details Loops in Twistor Space Loops in Twistor Space

2004-10-06

arxiv.org/abs/hep-th/0410054v4

Phys.Rev. D71 (2005) 106010

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, TeX. v3. missing citations added. v4. subtlety with the i \epsilon prescription clarified

Scientific paper

10.1103/PhysRevD.71.106010

We elucidate the one-loop twistor-space structure corresponding to momentum-space MHV diagrams. We also discuss the infrared divergences, and argue that only a limited set of MHV diagrams contain them. We show how to introduce a twistor-space regulator corresponding to dimensional regularization for the infrared-divergent diagrams. We also evaluate explicitly the `holomorphic anomaly' pointed out by Cachazo, Svrcek, and Witten, and use the result to define modified differential operators which can be used to probe the twistor-space structure of one-loop amplitudes.

Affiliated with

Also associated with

No associations

Rating

Loops in Twistor Space 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 Loops in Twistor Space, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loops in Twistor Space will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-170668