Speaker
Tae Jeong Kim
(Hanyang University (KR))
Description
Near the threshold of top quark pair production, non-relativistic QCD predicts an enhancement of ttbar production in pseudoscalar states. Color-singlet contributions are expected to produce a distinct resonance just below the tt threshold, offering a unique testable signature at the LHC. In this talk, we present the first observation of such a contribution in the dileptonic final state. In addition, we will discuss first results in the lepton+jets channel, providing further evidence. These findings mark the beginning of a new chapter in top quark physics and open up a novel avenue for studying bound-state effects involving top quarks.
Author
Tae Jeong Kim
(Hanyang University (KR))
Co-author
Niki Saoulidou
(National and Kapodistrian University of Athens (GR))
