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 bosons to electrons or muons. The momentum components of the undetected neutrino and antineutrino in the event are reconstructed by employing several kinematic conditions comprising a nonlinear 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 bosons, top (and antitop) quarks using generator level information produced at leading order.
- Received 6 February 2019
DOI:https://doi.org/10.1103/PhysRevD.99.054011
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Published by the American Physical Society