1999/02/28 by Chung Kao, D. Wackeroth, Doreen Wackeroth · 7 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.61.055009
published as Phys.Rev. D61 (2000) 055009 · Version to appear in Physical Review D
arxiv created 1999/11/01 · openalex publication_date 2000/02/09 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study loop-induced parity violating asymmetries in the strong production of polarized top quark pairs at pp and pp colliders. The electroweak O(\ensuremathα) corrections to the helicity amplitudes of qq\ensuremath→tt and g\stackrel\ensuremath→gtt are evaluated in a two Higgs doublet model (2HDM) and the minimal supersymmetric standard model (MSSM). While observables in top quark pair production receive little contribution from standard electroweak interactions, it is possible that they can be significantly enhanced in a 2HDM and the MSSM. We find that the one-loop MSSM electroweak corrections can generate parity violating asymmetries in the total production rate of left- and right-handed top quark pairs up to about 1.7% at the upgraded Fermilab Tevatron (√(S)=2 TeV) and 3% at the CERN LHC (√(S)=14 TeV).