2001/07/19 by Y. Kiyo, Kiyo, Y.
Physics and Astronomy · Social Sciences · #International Science and Diplomacy #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0107209
8 pages(LaTex), 3 figures. To appear in the proceedings of ``Theory Meeting on Physics at Linear Colliders'', Mar 15-17, 2001, KEK,Tsukuba, Japan
arxiv created 2001/07/19 · arxiv updated 2009/11/30
Future e+ e- linear colliders will enable us to determine the top quark mass with high accuracy from the measurement of the 1S peak position of (remnant of) toponium. The estimated statistical error in this measurement is about 50 MeV with integrated luminosity of 30 \rm fb-1. We calculate \cal O(αs5 m) corrections to the quarkonium 1S energy spectrum in the large-β0 approximation to reduce theoretical uncertainties below the corresponding experimental error. We discuss the significance of the \cal O(αs5 m) corrections and estimate theoretical uncertainties of our prediction.