Analytic evaluation of two-loop renormalization constants of enhanced   electroweak strength in the Higgs sector of the Standard Model
  We calculate renormalization constants Z_H, Z_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 >> 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. 
V. Borodulin (Institute for High Energy Physics, Protvino) and G.   Jikia (Albert-Ludwigs-Universit"at Freiburg)