Multiloop integrals in dimensional regularization made simple

• Published in: Physical review letters Vol. 110; no. 25; p. 251601
• Main Author: Henn, Johannes M
• Format: Journal Article
• Language: English
• Published: United States 18.06.2013

Scattering amplitudes at loop level can be expressed in terms of Feynman integrals. The latter satisfy partial differential equations in the kinematical variables. We argue that a good choice of basis for (multi)loop integrals can lead to significant simplifications of the differential equations, an...