Abstract
Abstract
Top-quark pair production is central to many facets of LHC physics. At leading order, the top and anti-top are produced in a back-to-back topology, however this topology accounts only for a minority of the events with TeV-scale momentum transfer that contain a $$ t\overline{t} $$
t
t
¯
pair. The remaining events instead involve the splitting of an initial or final-state gluon to $$ t\overline{t} $$
t
t
¯
. We provide simple quantitative arguments that explain why this is the case, and examine the interplay between different topologies and a range of variables that characterise the event hardness. We then develop a method to classify the topologies of individual events and use it to illustrate our findings in the context of simulated events, using both top partons and suitably defined fiducial tops. For events with large $$ t\overline{t} $$
t
t
¯
invariant mass, we comment on additional features that have important experimental and theoretical implications.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Cited by
3 articles.
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1. Physics Beyond the Standard Model Associated with the Top Quark;Annual Review of Nuclear and Particle Science;2023-09-25
2. Top-pair production at the LHC with MINNLOPS;Journal of High Energy Physics;2022-04-13
3. ZZ production at nNNLO+PS with MiNNLOPS;Journal of High Energy Physics;2022-01