Particle Physics Research Centre Consolidated Grant Submission

粒子物理研究中心综合拨款申请

• 批准号: ST/W000474/1
• 负责人: Adrian Bevan
• 金额: $ 237.06万
• 依托单位: Queen Mary University of London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FW000474%2F1
• 关键词: Particle; Physics; Research; Centre; Consolidated

Our mission is to study fundamental particle interactions with matter, and from that learn about the subatomic nature of matter, and the broader implications of that research. This is the study of "Radiation for Science and Society", driven by the most important fundamental challenges in modern physics today.This grant proposal focuses on members of the Particle Physics Research Centre (PPRC) at Queen Mary University of London (QMUL) exploring the fundamental nature of the Universe. This will be achieved through studies of the Higgs boson, neutrinos and precision measurements of Standard Model processes, as well as searches for manifestations of new physics, namely deviations from the Standard Model. These goals are aligned with the STFC strategic priorities and to achieve these goals we also work on instrument construction for the ATLAS Upgrade and the DUNE experiments, as well as performing research and development toward future colliders and generic technology development targeting future accelerator based experiments and future neutrino and dark matter experiments. On ATLAS we will perform precision Higgs measurements, searches for rare Higgs boson processes that could elucidate our understanding of cosmological evolution of the Universe. We will search for new physics including Dark Matter via the Dark Machines collaboration and via rare decay searches, including di-Higgs production. We will study the Standard Model through a variety of high energy processes and through studies of rare B decays.On the ATLAS upgrade we will work on the construction of the Inner Tracker Upgrade and the Level 1 Calorimeter trigger to ensure that UK MoU contributions are met and that the maximum physics yield is achievable from that project. Likewise on the DUNE experiment we will work toward the construction of the near detector to ensure that the UK MoU requirements are met and that the physics output from the UK investment is maximised.Our contribution to the NOvA neutrino experiment focuses on the measurement of cross section data that are crucial to determination of oscillation parameters in the neutrino sector, and ultimately linked to the search for matter-antimatter asymmetries in neutrinos that could be the answer to why we live in a matter dominated Universe. This experimental activity will lead us naturally into exploitation of the DUNE experiment once construction of that is completed.To enable maximum physics output from the STFC programme as a part of the global particle physics programme, the PPRC works on the development of underpinning detector technology for future experiments. Mature technologies are spun out into near term goals, such as ATLAS Upgrade and DUNE activities. For the longer term we identify barriers such as the need for low mass tracking systems, technology that can function in high fluence, ergo high radiation, environments, data acquisition for current and next generation experiments. We also focus on evaluating emerging and novel technology with the intent to overcome challenges or limitations of the existing technologies, looking beyond the current generation of instruments. For example ways to reduce neutron background in future dark-matter and neutrino experiments, and possible applications to other STFC experimental programmes. We actively engage in impact through both societal and economic routes. QMUL was founded to facilitate education and opportunity for the local community. Today outreach and public engagement, particularly with the local community, remains strong. QMUL holds a gold watermark for public engagement. Outreach activities are embedded into the core ethos of our programme as a result of both our historic roots as an organisation, and the strategic vision shown by QMUL for public engagement. We also strive to work with the commercial sector and other stakeholders for economic benefit to the UK, and actively pursue technology innovation, IP generation

我们的任务是研究基本粒子与物质的相互作用，并从中了解物质的亚原子性质，以及这项研究的更广泛的含义。这是一项关于“辐射对科学和社会的影响”的研究，受到当今现代物理学中最重要的基本挑战的推动。这项拨款提案主要针对伦敦玛丽女王大学(QMUL)粒子物理研究中心(PPRC)的成员，他们正在探索宇宙的基本性质。这将通过研究希格斯玻色子、中微子和标准模型过程的精确测量，以及寻找新物理的表现形式，即偏离标准模型来实现。这些目标与STFC的战略优先事项保持一致，为了实现这些目标，我们还致力于ATLAS升级和沙丘实验的仪器建设，以及针对未来基于加速器的实验和未来中微子和暗物质实验的未来对撞机和通用技术开发进行研究和开发。在ATLAS上，我们将进行精确的希格斯测量，寻找罕见的希格斯玻色子过程，这可能会阐明我们对宇宙宇宙演化的理解。我们将通过暗机器合作和稀有衰变搜索，包括双希格斯产生，寻找包括暗物质在内的新物理。我们将通过各种高能过程和稀有B衰变的研究来研究标准模型。在ATLAS升级中，我们将致力于内部跟踪器升级和1级量热计触发的构建，以确保满足英国谅解备忘录的贡献，并从该项目中实现最大的物理产量。同样，在沙丘实验中，我们将致力于建造NEAR探测器，以确保满足英国的谅解备忘录要求，并确保英国投资的物理输出最大化。我们对新星中微子实验的贡献集中在横截面数据的测量上，这些数据对确定中微子部门的振荡参数至关重要，并最终与寻找中微子中的物质-反物质不对称有关，这可能是我们生活在物质主导的宇宙中的答案。这项实验活动将引导我们自然地进入沙丘实验的开发，一旦沙丘实验完成。为了使STFC计划作为全球粒子物理计划的一部分，能够最大限度地产生物理输出，PPRC致力于为未来的实验开发支持探测器技术。成熟的技术被衍生为近期目标，如ATLAS升级和沙丘活动。从长远来看，我们确定了一些障碍，比如对低质量跟踪系统的需求，能够在高通量、高辐射、高辐射环境下工作的技术，以及当前和下一代实验的数据获取。我们还侧重于评估新兴和新技术，目的是克服现有技术的挑战或限制，超越当前一代的工具。例如，在未来的暗物质和中微子实验中减少中子本底的方法，以及可能应用于其他STFC实验计划。我们通过社会和经济途径积极参与影响。QMUL的成立是为了促进当地社区的教育和机会。今天，外联和公众参与，特别是与当地社区的接触，仍然很强大。QMUL拥有公众参与的黄金水印。由于我们作为一个组织的历史渊源，以及QMUL展示的公众参与的战略愿景，外联活动嵌入了我们计划的核心精神。我们还努力与商界和其他利益攸关方合作，为英国带来经济利益，并积极追求技术创新、知识产权产生

项目成果

Search for pair-produced vector-like top and bottom partners in events with large missing transverse momentum in pp collisions with the ATLAS detector

在与 ATLAS 探测器发生 pp 碰撞时，在具有大量缺失横向动量的事件中搜索成对产生的类矢量顶部和底部伙伴

• DOI: 10.1140/epjc/s10052-023-11790-7
• 发表时间: 2023
• 期刊: The European Physical Journal C
• 作者: Aad, G.;Abbott, B.;Abbott, D. C.;Abeling, K.;Abidi, S. H.;Aboulhorma, A.;Abramowicz, H.;Abreu, H.;Abulaiti, Y.;Abusleme Hoffman, A. C.
• 通讯作者: Abusleme Hoffman, A. C.

Calibration of the light-flavour jet mistagging efficiency of the b-tagging algorithms with Z+jets events using 139 $$\textrm{fb}^{-1}$$ of ATLAS proton-proton collision data at $$\sqrt{s} = 13$$ TeV

使用 $$sqrt{s} 处 ATLAS 质子-质子碰撞数据的 139 $$ extrm{fb}^{-1}$$ 校准具有 Z 射流事件的 b 标记算法的淡味射流误标记效率

• DOI: 10.1140/epjc/s10052-023-11736-z
• 发表时间: 2023
• 期刊: The European Physical Journal C
• 作者: Aad G

Measurements of the suppression and correlations of dijets in Pb+Pb collisions at s N N = 5.02 TeV

s N N = 5.02 TeV 下 Pb Pb 碰撞中双射流的抑制和相关性测量

• DOI: 10.1103/physrevc.107.054908
• 发表时间: 2023
• 期刊: Physical Review C
• 影响因子: 3.1
• 作者: Aad G