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

作者：Henn Johannes^*; Lee Roman N; Smirnov Alexander V; Smirnov Vladimir A; Steinhauser Matthias

来源：The Journal of High Energy Physics, 2017, 2017(3): 139.

DOI：10.1007/JHEP03(2017)139

• Perturbative QCD
• Scattering Amplitudes

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.

• 出版日期2017-3-27