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Programme of Research in Experimental Particle Physics at the University of Warwick: 2022-2025

华威大学实验粒子物理研究计划：2022-2025

基本信息

批准号：
ST/W000571/1
负责人：
G Barker
金额：
$ 331.31万
依托单位：
University of Warwick
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%2FW000571%2F1
关键词：
Programme Research Experimental Particle Physics

项目摘要

The scope of the proposed research lies in five distinct areas: Higgs and new phenomena searches at the ATLAS Experiment; the physics of particles containing the beauty quark at LHCb; the physics of neutrinos with neutrino oscillation and double-beta decay experiments; other routes to new physics with e.g. Darkside, NuSTORM, FCC and quantum sensors; detector R&D. It also includes Outreach and Knowledge Exchange programmes. In more detail:o The ATLAS experiment at CERN, a large, general purpose detector operating at the LHC was designed to search for and study the Higgs boson, as well as new exotic forms of matter. Our work involves contributing to the experiment's ability to identify interesting events as well as helping to construct an upgraded detector able to work in the new environment of an upgraded LHC. We will also contribute to the detailed study of the Higgs boson by helping to optimise the collection of events in which it decays to pairs of tau leptons, heavy relatives of the electron. We will also look for other, heavier exotic new bosons.o We aim to further our research into matter/anti-matter asymmetry (CP Violation) in the decays of Beauty mesons at the LHCb experiment. This is important, because we have shown in past experiments that the leading source of CP violation at the weak scale is consistent with the Standard Model mechanism of CP violation. However, cosmological considerations indicate that there should be other sources of CP violation in Nature, so we aim to make further sensitive tests with beauty mesons, in order to see if any evidence for additional sources of CP violation appear in such decays. We also plan to study rare decays of B mesons, which may be able to indicate the presence of new types of interactions outside the Standard Model of particle physics.o The elucidation of the properties of neutrinos. We have built part of the T2K experiment which is now operating in Japan. Analyses of T2K data has helped to show conclusively that neutrinos transmute or `oscillate' from one type to the other. We aim to continue running this experiment, to better measure these oscillations, and to establish whether the rate of oscillation is the same for anti-neutrinos. In parallel, we are deeply involved with preparations for the next generation of oscillation experiment. These projects, DUNE and Hyper-K, are entering the construction phase and we are making various contributions in both hardware and software to help enable the experiments to be ready for data taking around 2026. We are also contributing to the SuperNEMO and LEGEND experiments, which are sensitive to the scale of the neutrino mass and will determine whether the neutrino is it's own anti-particle (i.e. whether it is a Majorana particle or not).o We propose to continue our research across a raft of other projects with the potential to unlock new physics from different directions i.e. accelerator studies which are informing the design of next generation neutrino and muon beams; the dark matter search project Darkside; next generation energy frontier colliders (e.g. ILC and FCC); the application of quantum sensor technology to particle physics (e.g. the QTNM project applying quantum sensor technology to the measurement of neutrino mass). o We propose to continue our research and development of position- and energy-sensitive detectors for applications in neutrino experiments and with potential spin-off applications in industry.o We will continue to develop our outreach programme which includes activities for local schools and articles in popular science publications.o Supported by a strong University strategy and ethos in knowledge exchange, we will continue to pursue all avenues for possible knowledge exchange.

拟议的研究范围包括五个不同的领域：ATLAS实验中的希格斯和新现象搜索; LHCb中包含美夸克的粒子物理学;中微子振荡和双β衰变实验中的中微子物理学;其他新物理学路线，例如Darkside，NuSTORM，FCC和量子传感器;探测器研发。它还包括外联和知识交流方案。o欧洲核子研究中心的ATLAS实验，一个在大型强子对撞机上运行的大型通用探测器，旨在寻找和研究希格斯玻色子以及新的奇异形式的物质。我们的工作包括帮助实验识别有趣事件的能力，以及帮助构建一个能够在升级后的LHC新环境中工作的升级后的探测器。我们还将通过帮助优化收集希格斯玻色子衰变为τ轻子对（电子的重亲戚）的事件，为希格斯玻色子的详细研究做出贡献。我们还将寻找其他更重的奇异新玻色子。o我们的目标是在LHCb实验中进一步研究Beauty介子衰变中的物质/反物质不对称性（CP破坏）。这一点很重要，因为我们在过去的实验中已经表明，在弱尺度下CP破坏的主要来源与CP破坏的标准模型机制是一致的。然而，宇宙学的考虑表明，自然界中应该有其他CP破坏的来源，所以我们的目标是用美介子进行进一步的敏感测试，以查看在这种衰变中是否有其他CP破坏来源的证据。我们还计划研究B介子的罕见衰变，这可能表明在粒子物理学标准模型之外存在新型相互作用。我们已经建立了T2 K实验的一部分，该实验目前正在日本运行。对T2 K数据的分析有助于最终表明中微子从一种类型转变或“振荡”到另一种类型。我们的目标是继续运行这个实验，更好地测量这些振荡，并确定反中微子的振荡率是否相同。与此同时，我们正在深入参与下一代振荡实验的准备工作。这些项目，DUNE和Hyper-K，正在进入建设阶段，我们正在硬件和软件方面做出各种贡献，以帮助实验在2026年左右准备好数据采集。我们还为SuperNEMO和LEGEND实验做出了贡献，它们对中微子质量的大小很敏感，并将确定中微子是否是它自己的反粒子。（即它是否是马约拉纳粒子）o我们建议继续进行一系列其他项目的研究，这些项目有可能从不同方向解锁新的物理学，即加速器研究，这些研究为设计提供了信息。下一代中微子和μ子束;暗物质搜索项目Darkside;下一代能量前沿对撞机（例如ILC和FCC）;量子传感器技术在粒子物理学中的应用（例如将量子传感器技术应用于中微子质量测量的QTNM项目）。o我们建议继续研究和发展位置和能量敏感探测器，以应用于中微子实验，并有可能在工业上附带应用。o我们会继续发展外展计划，包括为本地学校举办活动，以及在科普刊物上发表文章。我们将继续寻求一切可能的知识交流渠道。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Measurement of the ?_{b}^{0}??(1520)µ^{+}µ^{-} Differential Branching Fraction.

测量 ?_{b}^{0}??(1520)μ^{ }μ^{-} 差异支化分数。

DOI：
10.1103/physrevlett.131.151801
发表时间：
2023
期刊：
Physical review letters
影响因子：
8.6
作者：
Aaij R
通讯作者：
Aaij R

Measurement of the Branching Fractions B(B0→pp¯pp¯) and B(Bs0→pp¯pp¯)

支化分数 B(B0–pp–pp–) 和 B(Bs0–pp–pp–) 的测量

DOI：
10.1103/physrevlett.131.091901
发表时间：
2023
期刊：
Physical Review Letters
影响因子：
8.6
作者：
Aaij, R.;Abdelmotteleb, A. S. W.;Abellan Beteta, C.;Abudinén, F.;Ackernley, T.;Adeva, B.;Adinolfi, M.;Adlarson, P.;Afsharnia, H.;Agapopoulou, C.
通讯作者：
Agapopoulou, C.

Measurement of the mass difference and relative production rate of the O b - and ? b - baryons

O b - 和α 的质量差和相对生产率的测量