Analytic evaluation of two-loop renormalization constants of enhanced electroweak strength in she Higgs sector of the Standard model

摘要

We calculate renormalization constants Z(H,w), the Higgs and W-boson mass and tadpole counterterms in the on-mass-shell renormalization scheme to two loops in the heavy-Higgs-boson limit m(H) much greater than M(W). Explicit analytic formulae are presented for the two-loop integrals with masses, which are not known in the literature. As an application, the analytic expression for the two-loop leading correction to the fermionic Higgs boson width is obtained.