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Studies on Higgs Boson Yukawa Couplings and Self-coupling at ATLAS
by
Yanlin Liu
(University of Science and Technology of China)
→
Asia/Shanghai
Online (Cloud)
Online
Cloud
Description
Join Zoom Meeting
https://cern.zoom.us/j/67083410041?pwd=UFI4bVRIc0RtV284emI1djJvUFNrUT09
Meeting ID: 670 8341 0041
Passcode: 013517
Abstract: since the discovery of the Higgs boson in 2012, studying its properties and couplings becomes one of the most important sectors at the LHC experiments. This talk will present the latest studies on the Higgs boson Yukawa couplings and self-coupling with 139 fb-1 data collected using the ATLAS detector at 13 TeV. A first direct probe of CP property in the top-quark Yukawa coupling using ttH/tH events where the Higgs boson decays into two photons will be presented. Also, as a probe of the Yukawa coupling to the second generation of fermions, the search for H->μμ has been performed and the most sensitive results to date will be shown. Besides, the Higgs self-coupling has been directly explored via the production of Higgs boson pairs (HH) and the latest results on HH->bb𝜏𝜏 and HH combination will be reported.
Refs.: Phys. Rev. Lett. 125 (2020) 061802, Phys. Lett. B 812 (2021) 135980, Phys. Rev. Lett. 119 (2017) 051802 (Editors’ Suggestion), ATLAS-CONF-2021-030, ATLAS-CONF-2021-052, ATL-PHYS-PUB-2021-044
Speaker:
刘彦麟，先后于2012年、2018年在中国科学技术大学取得学士和博士学位，2018年至今为美国密歇根大学博士后。自博士阶段以来从事大型强子对撞机上的ATLAS实验研究，在希格斯玻色子的汤川耦合和自耦合、矢量玻色子散射、新物理寻找以及缪子探测器New Small Wheel升级等研究方面做出重要贡献，目前担任HH→bb𝜏𝜏研究团队负责人。曾获“晨光杯”青年优秀论文一等奖和中国科学院百篇优秀博士论文。
