Higher Order Corrections to the Hadronic Higgs Decay

A Higgs boson in the intermediate mass range is considered. An effective Lagrangian approach is used in order to evaluate the top-induced QCD corrections of order $\alpha_s^3$ to the decay into light quarks and $O(\alpha_s^4)$ corrections to the gluonic decay mode. The connection to the decoupling relations for $\alpha_s$ and the light quark masses is discussed.Comment: 5 pages (Latex), 5 figures (Postscript), to appear in the Proceedings of the International Europhysics Conference on High Energy Physics, Jerusalem, Israel, 19 - 26 August 199

Hadronic contribution to α(MZ2)\alpha(M_Z^2) and the anomalous magnetic moment of the muon

In this contribution recent developments are discussed which lead to a significant reduction of the error for $\alpha(M_Z^2)$ and $(g-2)_\mu$.Comment: 6 pages, Talk presented at the 17th International Workshop on Weak Interactions and Neutrinos (WIN99), Cape Town, South Africa, January 24--30, 199