Nrf. Braga et Sm. Desouza, SUPERSPACE FORMULATION FOR THE BATALIN-VILKOVISKY FORMALISM WITH EXTENDED BRST INVARIANCE, Physical review. D. Particles and fields, 53(2), 1996, pp. 916-922
A superspace formulation for the Batalin-Vilkovisky formalism (also ca
lled field-antifield quantization) with extended BRST invariance (BRST
and anti-BRST invariance) for gauge theories with a closed algebra is
presented. In contrast with a recent formulation, where only BRST inv
ariance holds off shell, two collective sets of fields are introduced
and an off-shell realization of the extended algebra in a superspace w
ith two Grassmann coordinates is obtained. The example of the Yang-Mil
ls theory is also considered.