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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 as well as HH and single Higgs combination will be reported.
Biography:
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，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。此后在美国密歇根大学做博士后，2023年3月底加入山东大学任研究员。近10年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分析负责人和利用双轻子及轻子和喷注末态寻找新物理的分析负责人。
Online Meeting Room: https://meeting.tencent.com/dm/vWjyLjjXwZMH
ID: 754-406-866 Password: 123456
Prof. Shu Li