Four-loop photon quark form factor and cusp anomalous dimension in the large-N c limit of QCD

Four-loop photon quark form factor and cusp anomalous dimension in the large-N c limit of QCD

Abstract We compute the four-loop QCD corrections to the massless quark-anti-quark-photon form factor F q in the large-N c limit. From the pole part we extract analytic expressions for the corresponding cusp and collinear anomalous dimensions.

Bibliographic Details
Main Authors: Johannes Henn, Roman N. Lee, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser
Format: Article
Language:English
Published: SpringerOpen 2017-03-01
Series:Journal of High Energy Physics
Subjects:
Perturbative QCD
Scattering Amplitudes
Online Access:http://link.springer.com/article/10.1007/JHEP03(2017)139

Internet

http://link.springer.com/article/10.1007/JHEP03(2017)139

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