429 citations · 4.7k across the 192 of their papers we have counts for
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Some examples of calculation of massless and massive Feynman integrals
A. V. Kotikov
We show some examples of calculations of massless and massive Feynman integrals.
Transverse momentum dependent parton densities in processes with heavy quark generations
A. V. Kotikov, A. V. Lipatov, P. Zhang
To study the heavy quark production processes, we use the transverse momentum dependent (TMD, or unintegrated) gluon distribution function in a proton obtained recently using the K…
TMDlib2 and TMDplotter: a platform for 3D hadron structure studies
N. A. Abdulov, A. Bacchetta, S. Baranov +35
A common library, TMDlib2, for Transverse-Momentum-Dependent distributions (TMDs) and unintegrated parton distributions (uPDFs) is described, which allows for easy access of common…
Differential equations and Feynman integrals
A. V. Kotikov
The role of differential equations in the process of calculating Feynman integrals is reviewed. An example of a diagram is given for which the method of differential equations was…
Landau-Khalatnikov-Fradkin Transformation and Even zeta Functions
A. V. Kotikov, S. Teber
An exact formula that relates standard zeta functions and so-called hatted zeta functions in all orders of perturbation theory is presented. This formula is based on the Landau-Kha…