Employing the perturbative definition of the Higgs mass in a   non-perturbative calculation
  In perturbative calculations the masses of the Higgs, the Ws and the Z are usually determined from the pole position of the corresponding gauge-dependent propagators. In full non-perturbative lattice calculations it is much more direct to instead investigate the bound state spectrum with its gauge-independent meaning, which then contains bound states of Higgses and/or Ws and Zs. It is possible to extend the perturbative definition of the Higgs mass also to such a full non-perturbative setting by determining the respective full non-perturbative propagators of the Higgs, the Ws, and the Z, and analyze their analytic structure. This helps connecting the Higgs properties indirectly with gauge-invariant physics. This is here studied, using lattice gauge theory, for the case of a W-Z-Higgs system. 
Axel Maas
hep-lat hep-ph