Search

Your search keyword '"Kotikov, A. V."' showing total 552 results
Start Over Author "Kotikov, A. V."
552 results on '"Kotikov, A. V."'

551. Four-loop singularities of the massless fermion propagator in quenched three-dimensional QED.

Author

Pikelner, A. F., Gusynin, V. P., Kotikov, A. V., and Teber, S.

Subjects
*QUANTUM electrodynamics, *FERMIONS
Abstract

We calculate the three- and four-loop corrections to the massless fermion propagator in three-dimensional quenched quantum electrodynamics with four-component fermions. The three-loop correction is finite and gauge invariant but the four-loop one has singularities except in the Feynman gauge where it is also finite. Our results explicitly show that, up to four loops, gauge-dependent terms are completely determined by lower order ones in agreement with the Landau-Khalatnikov-Fradkin transformation. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

552. Small-x behavior of the structure function and its slope for “frozen” and analytic strong-coupling constants

Author

Cvetič, Gorazd, Illarionov, Alexey Yu., Kniehl, Bernd A., and Kotikov, Anatoly V.

Subjects
*NUCLEAR structure, *COUPLING constants, *APPROXIMATION theory, *OPERATOR theory, *DEEP inelastic collisions, *PARTICLE accelerators
Abstract

Abstract: Using the leading-twist approximation of the Wilson operator product expansion with “frozen” and analytic versions of the strong-coupling constant, we show that the Bessel-inspired behavior of the structure function and its slope at small values of x, obtained for a flat initial condition in the DGLAP evolution equations, leads to good agreement with experimental data of deep-inelastic scattering at DESY HERA. [Copyright &y& Elsevier]

Published
2009
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results