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Zoom Meeting ID: 651 5115 2800
Passcode: 946541
Abstract：
The Higgs boson, the cornerstone of the Standard Model, was discovered in 2012 at the Large Hadron Collider (LHC), marking a groundbreaking milestone in high-energy physics. Yet, critical questions—such as the origin of electroweak symmetry breaking and the mass hierarchy—remain unanswered. Precision measurements of the Higgs boson and its interactions, especially at high energies, offer one of the most promising pathways to uncover new physics at the LHC.
The most favored Higgs boson decay to a bottom-antibottom quark pair ($H \to b\bar{b}$) is emerging as a key channel for studying Higgs bosons produced with large momentum, where the decay products are reconstructed as a single, large-radius jet. Historically, hadronic final states have faced significant challenges due to contamination from QCD processes, but advancements in jet substructure and tagging techniques have made these analyses viable in the boosted topology. In this talk, I will present the first measurement of Higgs production in association with a vector boson in the fully hadronic ($qqb\bar{b}$) final state.
Looking ahead, I will discuss opportunities to improve measurements of highly energetic Higgs bosons and explore the physics potential of the High Luminosity LHC, the ATLAS detector upgrade, and future collider projects. These advancements will deepen our understanding of Higgs boson properties and their implications for physics beyond the Standard Model, paving the way for discoveries in the years to come.
报告人简介：
郑智，斯坦福直线加速器国家实验室（SLAC）博士后研究员，2015年本科毕业于武汉大学，2020年博士毕业于美国密歇根大学，2021年至今在 SLAC 从事高能物理实验研究。她长期参与大型强子对撞机 ATLAS 实验，主要聚焦顶夸克物理、希格斯物理以及硅像素探测器升级与研发。
郑智主导了高动量 VH（bb）全强子末态的首次测量，为希格斯耦合检验开辟了新的实验通道，成果发表于 Physical Review Letters；同时主导了四顶夸克产生过程的首次发现，担任分析负责人，推动该过程实现从物理搜寻到精确观测的跨越，相关成果获 CERN 专题报道。在探测器研发方面，她在 SLAC 负责 ATLAS ITk 像素探测器 Inner System 的系统测试工作，牵头建成系统级测试平台，主导关键系统验证，支撑相关系统通过最终设计评审和量产准备评审。