Understanding Single Tops using Jets
Tilman Plehn, Michael Rauch, Michael Spannowsky
TL;DR
This paper explores how top quark production with jets at hadron colliders can reveal details about top quark couplings, distinguishing different production mechanisms and backgrounds through jet structure analysis.
Contribution
It introduces a method to differentiate single top production processes and backgrounds by analyzing the structure of accompanying QCD jets.
Findings
Effective separation of direct top signals from QCD backgrounds.
Disentanglement of three top plus jets production mechanisms.
Enhanced understanding of top gauge couplings and flavor mixing.
Abstract
Top plus jets production at hadron collider allows us to study the couplings of the top quark. In the Standard Model, two single top processes contribute to the top-jets final state. Beyond the Standard Model, additional direct top production can occur. All three processes probe top gauge couplings including flavor mixing. The structure of accompanying QCD jets allows us to separate the direct top signal from the QCD backgrounds as well as to disentangle the three top plus jets production mechanisms orthogonally to the usual bottom tags.
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