Higher Order Corrections to the Hadronic Higgs Decay

Abstract

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.

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 1997