The pure BRST Einstein-Hilbert Lagrangian from the double-copy to cubic order
arXiv:2004.14945 · doi:10.1007/JHEP07(2020)093
Abstract
We construct the pure gravity Becchi-Rouet-Stora-Tyutin (BRST) Einstein-Hilbert Lagrangian, to cubic order, using the BRST convolution product of two Yang-Mills theories, in conjunction with the Bern-Carrasco-Johansson (BCJ) double-copy.
20 pages