Probing anomalous top quark interactions at the Fermilab Tevatron collider- art. no. 114003

We study the effects of dimension-six operators contributing to the gt(t) o ver bar vertex in top quark pair production at the Fermilab Tevatron collid er. We derive both the limits from run 1 data and the potential bounds from future runs (runs 2 and 3). Although the current constraints are not very strong, the future runs are quite effective in probing these operators. We investigate the possibility of disentangling different operators with the t t invariant mass distribution and the top quark polarization asymmetry. We also study the effects of a different set of operators contributing to sing le top quark production via the Wt(b) over bar coupling. We derive the curr ent and potential future bounds on these anomalous operators and find that the upgraded FermiIab Tevatron collider can improve the existing constraint s from R-b for one of the operators. [S0556-2821(98)07121-5].