Speaker
Haifeng Li
(Shandong University)
Description
This talk will review the recent H → 𝜇𝜇 and toponium results from the ATLAS experiment at the Large Hadron Collider. For H → 𝜇𝜇 search, an excess of events over the background is observed with a significance of 3.4σ. This result provides evidence for the H → 𝜇𝜇 decay with ATLAS data and offers a direct probe of the Higgs-boson Yukawa coupling to second-generation fermions. For toponium search, an excess of events is observed over the baseline perturbative QCD prediction with an observed significance of 8σ. This excess is consistent with the formation of color-singlet, S-wave, quasi-bound t¯t states as predicted by non-relativistic QCD.
Primary author
Haifeng Li
(Shandong University)
