1984/01/01 by V. A. Novikov, V.A. Novikov, Mikhail Shifman +5 · 12 citations
Physics and Astronomy · #Quantum Chromodynamics and Particle Interactions #Particle physics theoretical and experimental studies #High-Energy Particle Collisions Research
paper · doi:10.1002/prop.19840321102
Abstract We review the technique of calculation of operator expansion coefficients. The main emphasis is put on gluon operators which appear in expansion of n ‐point functions induced by colourless quark currents. Two convenient schemes are discussed in detail: the abstract operator method and the method based on the Fock‐Schwinger gauge for the vacuum gluon field. We consider a large number of instructive examples important from the point of view of physical applications.