2008/10/16 by A. Hoang, Andre H. Hoang, Christoph J. Reisser +3
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/j.nuclphysbps.2008.12.091
published as Nucl.Phys.Proc.Suppl.186:403-406,2009 · 4 pages, 4 figures. Talk given at the 14th International QCD Conference (Montpellier 7-12th July 2008)
arxiv created 2008/10/16 · openalex publication_date 2009/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The effects of the finite top quark width in the top pair production cross section close to the threshold are discussed in this talk. We introduce a tt cross section with a cut on the invariant masses of the top and antitop that can be calculated theoretically with effective field theory (EFT) methods. The matching procedure to implement the physical phase-space boundaries in the NRQCD framework (``phase-space matching'') is briefly outlined.