Powered by Indico
v3.2.3
Abstract：
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.
Biography：
Dr. Haifeng Li is a Professor at the Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao.
He received his bachelor’s degree from Shandong University in 2005. From 2008 to 2012, he conducted research on the ATLAS experiment at the University of Wisconsin–Madison as a jointly supervised doctoral student. He obtained his Ph.D from Shandong University in 2012. From 2012 to 2017, he carried out postdoctoral research at State University of New York at Stony Brook. He joined Shandong University as a faculty in September 2017. Main research interests and achievements: During the discovery of the Higgs boson (2011–2012), he was one of the key analyzers for the Higgs to WW channel; he was one of the pioneers of the Higgs to dimuon search and once served as contact of the analysis team; he has conducted research on toponium.
Alternative online link: https://meeting.tencent.com/dm/fWYkac05yQ0N
ID:153900544