FIRST LATTICE EVIDENCE FOR A NONTRIVIAL RENORMALIZATION OF THE HIGGS CONDENSATE

General arguments related to ''triviality'' predict that, in the broke n phase of (lambda Phi(4))(4) theory, the condensate [Phi] rescales by a factor Z phi different from the conventional wave function renormal ization factor, Z(prop). Using a lattice simulation in the Ising limit , we measure Z(phi) = m(2)chi from the physical mass and susceptibilit y and Z(prop) from the residue of the shifted-field propagator. We fin d that the two Z's differ, with the difference increasing rapidly as t he continuum limit is approached. Since Z(phi) affects the relation of [Phi] to the Fermi constant, it can sizably affect the present bounds on the Higgs mass.