Higgs Physics : Theoretical Developments Sven Heinemeyer Cern

The corrections to the MSSM Higgs boson masses and couplings performed in this millennium are briefly reviewed. For the lightest MSSM Higgs boson mass, mh, we list the current status of the intrinsic uncertainties (due to unknown higher-order corrections) and the parametric uncertainties (due to the imperfect experimental knowledge of the input parameters). The need for high-precision calculations in the MSSM Higgs boson sector is exemplified in a realistic example. talk given at the “International Conference on Linear Colliders”, April 2004, Paris, France email: [email protected] MSSM HIGGS PHYSICS: THEORETICAL DEVELOPMENTS SVEN HEINEMEYER CERN TH Division, Dept. of Physics, CH 1211 Geneva 23, Switzerland The corrections to the MSSM Higgs boson masses and couplings performed in this millennium are briefly reviewed. For the lightest MSSM Higgs boson mass, mh, we list the current status of the intrinsic uncertainties (due to unknown higher-order corrections) and the parametric uncertainties (due to the imperfect experimental knowledge of the input parameters). The need for high-precision calculations in the MSSM Higgs boson sector is exemplified in a realistic example.