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arXiv · 1902.01976

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

Helenka Casler·Matthew Manganel·Miguel C. N. Fiolhais·Andrea Ferroglia·António Onofre
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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.

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Helenka Casler, Matthew Manganel, Miguel C. N. Fiolhais, Andrea Ferroglia, António Onofre. 2019-02-05. Reconstruction of top quark pair dilepton decays in electron-positron collisions. https://doi.org/10.1103/physrevd.99.054011

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