Jet Activity in t-tbar Events and Top Mass Reconstruction at Hadron Colliders

Abstract

We analyse the impact of matrix-element corrections to top decays in HERWIG on several observables related to the jet activity in t-tbar events at the Tevatron and at the LHC. In particular, we study the effects induced by the higher-order corrections to top decays on the top mass reconstruction using the recently proposed J/psi+lepton final states.

Comments: 16 pages, Latex, epsfig, 11 figures