Infrared saturation and phases of gauge theories with BRST symmetry Valentin Mader, Martin Schaden, Daniel Zwanziger and Reinhard Alkofer Eur. Phys. J. C, 74 5 (2014) 2881 Published online: 20 May 2014 DOI: 10.1140/epjc/s10052-014-2881-8