Symmetric point quartic gluon vertex and momentum subtraction

Abstract

We compute the full one loop correction to the quartic vertex of QCD at the fully symmetric point. This allows us to define a new momentum subtraction (MOM) scheme in the class of schemes introduced by Celmaster and Gonsalves. Hence using properties of the renormalization group equation, the two loop renormalization group functions for this scheme are given.

Comments: 25 latex pages, anc directory contains txt file with electronic version of quartic vertex function, the MOMgggg renormalization group functions, tensor basis and the projection matrix