利用 ATLAS 实验及 LHC 第 3 运行期的全部数据寻找 H(bb)H(gammagamma)

本研究项目旨在探究双希格斯玻色子的产生过程，以测量标准模型中的关键参数——希格斯自耦合参数。博士候选人将利用LHC第3轮运行的数据集，重点研究H(bb)H(γγ)衰变通道，为希格斯对的产生提供证据，并重点关注与光子与b流相关的性能指标。

Job description: Project description: Following the discovery of the Higgs boson at the LHC in 2012, particularly through the ATLAS experiment, the search for the Higgs self-coupling parameter—the final unmeasured parameter of the Standard Model—began. This parameter helps constrain the shape of the Higgs potential. To measure it, we need to produce a pair of Higgs bosons simultaneously in a proton collision, as opposed to the single (or 'single') production observed in the past. This process is about 1,000 times rarer than the latter. The H(bb)H(γγ) channel is one of the most promising for this search. The goal of the PhD is to contribute to the search for double Higgs production using this channel, leveraging the full LHC Run 3 dataset. By combining results with other decay channels and with the CMS experiment, we aim to achieve evidence (above 3σ) for Higgs boson pair production. A key aspect of the thesis (qualification task) involves working on a performance-related aspect, potentially linked to photons or b-jets. The work will primarily be based in Orsay.

所需个人背景与技能要求： M2粒子物理或同等学科 要求的法语水平：中级。您能够清晰、连贯且自信地运用语言，谈论您熟悉的日常事务。 所需英语水平：高级中级：您能够有效使用语言，并能准确表达观点。