Constraining the Higgs-charm Yukawa coupling in the CMS experiment
题目: Constraining the Higgs-charm Yukawa coupling in the CMS experiment
报告人: 曲惠麟
报告人单位: CERN
报告时间: 2022-05-13 16:05
报告地点: Online
主办单位: 中国科学技术大学核与粒子物理学科
报告介绍:

摘要:

Measurement of the Higgs boson coupling to the charm quark provides a crucial test of the fermion mass generation mechanism in the Standard Model. This talk presents the latest CMS search for the Higgs boson decaying to a pair of charm quarks using the full Run 2 data set. Novel concepts in charm jet reconstruction, identification and calibration, and search design have been developed for this search, leading to the most stringent constraint on the Higgs-charm coupling to date. The search is validated by measuring the Z boson decay to charm quarks and yields the first observation of this process at a hadron collider. Prospects at the future HL-LHC and further improvements on the deep learning techniques that empowered this search will also be discussed.

 

报告人简介:

曲慧麟,2014年本科毕业于北京大学,2019年于加州大学圣塔芭芭拉分校获得博士学位,现为欧洲核子研究中心博士后。长期致力于大型强子对撞机上希格斯玻色子性质测量与新物理寻找,在希格斯玻色子与第二代费米子耦合、双希格斯玻色子产生、超对称粒子寻找等方面发挥重要作用。现任CMS合作组双玻色子共振态物理分析组召集人。此外,提出了ParticleNet等一系列新型深度学习算法,大幅提升喷注鉴别灵敏度,被CMS合作组采纳并广泛应用。同时,还积极参与了CMS Phase2高粒度量能器的升级工作。

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