%0 Journal Article
%T Renormalization of gauge theories without cohomology
%A Damiano Anselmi
%J Physics
%D 2013
%I arXiv
%R 10.1140/epjc/s10052-013-2508-5
%X We investigate the renormalization of gauge theories without assuming cohomological properties. We define a renormalization algorithm that preserves the Batalin-Vilkovisky master equation at each step and automatically extends the classical action till it contains sufficiently many independent parameters to reabsorb all divergences into parameter-redefinitions and canonical transformations. The construction is then generalized to the master functional and the field-covariant proper formalism for gauge theories. Our results hold in all manifestly anomaly-free gauge theories, power-counting renormalizable or not. The extension algorithm allows us to solve a quadratic problem, such as finding a sufficiently general solution of the master equation, even when it is not possible to reduce it to a linear (cohomological) problem.
%U http://arxiv.org/abs/1301.7577v2