Search for the Higgs associated production with top-quark pairs with the ATLAS detector

par Dr Kun LIU (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR)), M. Timothée Theveneaux-Pelzer (CPPM/IN2P3/CNRS)

lundi 26 sept. 2016, 14:00 → 15:00 Europe/Paris

After the discovery of the Higgs boson in July 2012, a precise measurement of its properties is critical to verify the validity of the Standard Model of particle physics. The top quark presents the largest Yukawa coupling among the SM fermions and measuring its value is a probe to new physics beyond the SM. The Higgs associated production with top-quark pair (ttH) provides direct access to the top Yukawa coupling. The seminar starts from an introduction of the ATLAS experiment, touching briefly few selected phenomenological aspects. We focus on ATLAS Run 2 ttH analysis using 13.2 fb-1 data collected during 2016 til summer. The following ttH channels are presented: Higgs decays to bottom-quark pair, multi-leptons (targeting to Higgs decays to W/Z boson pair, or tau pair), and photon pair.

Transparents ATLAS_ttH_seminar_CPPM.pdf Séminaire_CPPM-ttH_2016_1.pdf