| Affiliation: | (1) Theory Division, CERN, CH-1211 Geneva 23, Switzerland;(2) Institut für Theoretische Physik E, RWTH Aachen, D-52056 Aachen, Germany;(3) Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94309, USA;(4) Department of Physics, Tohoku University, Sendai 980-8578, Japan;(5) Institute for Theoretical Physics, University Hamburg, D-22761 Hamburg, Germany;(6) Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, 117312, Russia;(7) Department of Physics, University of Durham, Durham, DH1 3LE, England;(8) Nuclear Physics Institute, Moscow State University, 119889 Moscow, Russia;(9) Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120, USA;(10) Budker Institute for Nuclear Physics, 630090 Novosibirsk, Russia |
production cross section at the Linear Collider have been calculated recently. In this article the NNLO calculations of several groups are compared and the remaining uncertainties are discussed. The theoretical prospects for an accurate determination of top quark mass parameters are discussed in detail. An outlook on possible future improvements is given.