Lattice effective potential of massless $(\lambda {\Phi }^4{)}_4$: `triviality' and spontaneous symmetry breaking

P. Cea, M. Consoli, L. Cosmai +1

We present a precise lattice computation of the slope of the effective potential for massless $(\lambda {\Phi }^4{)}_4$ theory in the region of bare parameters indicated by the Brahm's analysis o…