Precision test of the Standard Model from Z physics

The measurements performed at LEP and SLC have substantially improved the precision of the test of the Minimal Standard Model. The precision is such that there is sensitivity to pure weak radiative corrections. This allows to indirectly determine the top mass (mt=161±8 GeV), the W-boson mass (MW=80.37±0.03 GeV), and to set an upper limit on the the Higgs boson mass of 262 GeV at 95% confidence level. Invited talk presented at the IVth International Symposium on Radiative Corrections (RADCOR 98), Barcelona, Spain, Catalonia, September 8-12, 1998. PRECISION TESTS OF THE STANDARD MODEL FROM Z PHYSICS F.TEUBERT European Laboratory for Particle Physics (CERN), CH-1211 Geneva 23, Switzerland E-mail: [email protected] The measurements performed at LEP and SLC have substantially improved the precision of the test of the Minimal Standard Model. The precision is such that there is sensitivity to pure weak radiative corrections. This allows to indirectly determine the top mass (mt=161±8 GeV), the W-boson mass (MW=80.37±0.03 GeV), and to set an upper limit on the the Higgs boson mass of 262 GeV at 95% confidence level.