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

Authors

Helenka Casler, CUNY Graduate CenterFollow
Matthew Manganel, New York University
Miguel C. N. Fiolhais, CUNY Borough of Manhattan Community CollegeFollow
Andrea Ferroglia, CUNY Graduate CenterFollow
António Onofre, Universidade do Minho

Document Type

Article

Publication Date

2019

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 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 W^± bosons, top (and antitop) quarks using generator level information produced at leading order.

Comments

This article was originally published in Physical Review D, available at https://doi.org/10.1103/PhysRevD.99.054011

This work is distributed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).