Reconstruction of top quark pair dilepton decays in electron-positron collisions

Abstract

A new algorithm is presented to perform the full kinematic reconstruction of top quark pair events produced at future electron-positron colliders in the case of dilepton decays of the $W$ bosons to electrons or muons. The momentum components of the undetected neutrino and anti-neutrino in the event are reconstructed by employing several kinematic conditions comprising a non-linear system of six equations. This system is solved numerically using two independent methods and the selection of the best candidate real solution for each event is determined by a likelihood discriminant. Results are presented for several reconstructed kinematic properties of the $W^{\pm }$ bosons, top (and anti-top) quarks using generator level information produced at leading order.

8 pages, 7 figures

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Cited by in corpus (1)

• Asymmetries in invisible Dark Matter mediator production associated with $t\bar{t}$ final states