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Some analytic results for two-loop scattering amplitudes

โœ Scribed by Luis F. Alday


Publisher
Springer-Verlag
Year
2011
Tongue
English
Weight
363 KB
Volume
2011
Category
Article
ISSN
1126-6708

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Two-loop helicity amplitudes for fermion
โœ Z. Bern; A. De Freitas ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 137 KB

We discuss the calculation of two-loop helicity amplitudes for quark-quark scattering in QCD and four-gluino scattering in N = 1 supersymmetric Yang-Mills theory. We study the dependence of the results on different variants of dimensional regularization. In particular, we consider the 't Hooft-Veltm