ATLAS Beyond the Standard Model Searches in Multileptonic Final State

ATLAS 超越多轻子最终状态的标准模型搜索

• 批准号: 2654361
• 金额: --
• 依托单位: University of Sussex
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2654361
• 关键词: ATLAS; Beyond; Standard; Model; Searches

The project is well synchronised with the start of the LHC Run-3, which will lead to the collection of unprecedented amounts of proton-proton collisions at the highest energies ever reached at a collider. The project is part of Sussex's leading programme of data-intensive searches for new physics phenomena Beyond the Standard Model (BSM) in multileptonic final states at ATLAS, using Run-2 and Run-3 data samples collected by the experiment. Multileptonic "signatures" are characteristic of a wide range of exciting BSM scenarios, which aim to shed light on some of the most pressing questions in fundamental physics - such as the origin of dark matter in our universe, or the fundamental nature of neutrino masses. Models to be explored include the production of weakly interacting supersymmetric particles known as charginos and neutralinos, or the production of exotic heavy neutral leptons as encountered in seesaw models of neutrino masses.Sussex's principal technical involvement in ATLAS is through the experiment's trigger system, including focus on future upgrades of the ATLAS detector. Commensurately with their role, and in synergy with their other research and training activities, the student will contribute to Sussex's technical commitments to the ATLAS experiment. Example of trigger-related activities that Sussex students have significantly contributed to in recent years include software developments for the ATLAS Inner Detector system, or the characterisation of key properties of electron-based triggers.

该项目与LHC Run-3的启动同步良好，这将导致在对撞机上收集前所未有的最高能量质子-质子碰撞。该项目是苏塞克斯领先的数据密集型搜索计划的一部分，该计划使用实验收集的Run-2和Run-3数据样本，在ATLAS的多轻子最终状态中搜索超越标准模型（BSM）的新物理现象。多重轻子“签名”是一系列令人兴奋的BSM场景的特征，旨在揭示基础物理学中一些最紧迫的问题-例如宇宙中暗物质的起源，或中微子质量的基本性质。研究的模型包括产生弱相互作用的超对称粒子（电荷伴子和中性伴子），或者产生中微子质量的跷跷板模型中遇到的奇异重中性轻子。苏塞克斯大学在ATLAS的主要技术参与是通过实验的触发系统，包括关注ATLAS探测器的未来升级。与他们的角色相称，并与他们的其他研究和培训活动协同，学生将有助于苏塞克斯的技术承诺的ATLAS实验。苏塞克斯学生近年来为之做出重大贡献的与生物相关的活动的例子包括ATLAS内部探测器系统的软件开发，或基于电子的触发器的关键特性的表征。