0372-400Х (Edition in Ukrainian)
2071-0186 (Edition in English)
2071-0194 (in electronic form)
Abbreviated key title: Ukr. J. Phys.
1 Department of Applied Mathematics, University of Western Ontario (London Canada N6A 5B7)
2 Department of Mathematics and Computer Science, Algoma University
(Sault St. Marie Canada P6A 2G4, Canada; e-mail: email@example.com)
Determining the Running Coupling from the Effective Action
Section: Fields and elementary particles
Abstract: The conformal anomaly has provided an expression for the effective action of gauge theories in the presence of a strong background field in terms of the running coupling constant. We exploit this result to find a novel expansion for the running coupling constant and to compare it with conventional expansions obtained by directly integrating the differential equation for the running coupling constant.
Key words: running coupling, gauge theory.