Programme of Research in Experimental Particle Physics at the University of Warwick: 2012-2016.

华威大学实验粒子物理研究计划：2012-2016。

• 批准号: ST/K00140X/1
• 负责人: Paul Harrison
• 金额: $ 276.95万
• 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: 2012
• 资助国家: 英国
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FK00140X%2F1
• 关键词: Programme; Research; Experimental; Particle; Physics

The scope of the proposed research lies in five distinct areas: the physics of particles containingthe beauty quark at LHCb; the physics of neutrinos with T2K and SuperNEMO; Higgs and new phenomena searches at ATLAS; accelerator research and development for new high intensity proton, muon and neutrino beams; detector R&D. It also includes Outreach and Knowledge Exchange programmes. In more detail:o We aim to further our research into matter/anti-matter asymmetry (CP Violation) in the decays of Beautymesons at the LHCb experiment. This is important, because we have shown in past experiments thatthe leading source of CP violation at the weak scale is consistent with the Standard Model mechanismof CP violation. However, cosmological considerations indicate that there should be other sourcesof CP violation in Nature, so we aim to make further sensitive tests with beauty mesons, in orderto see if any evidence for additional sources of CP violation or other new physics in Nature may appear in such decays.o The elucidation of the properties of neutrinos. These are very light, neutral particles which areemitted, for example, by the sun, and in radioactive beta decay. They have recently been found tooscillate, ie. transmute from one type to another, while they propagate. We have built partof the T2K experiment which is now operating in Japan. Analyses of early data give tantalising hints of the previously unobserved oscillations of muon to electron type neutrinos. We aim to continue running this experiment, hopefully to confirm these preliminary hints. If confirmed, the largeness of the effect will offer the chance to go on to look for asymmetries between the oscillations of neutrinos and anti-neutrinos.We further plan to contribute to the SuperNEMO experiment, which aims to determine the nature of the neutrino as so called Dirac or Majorana particle. The former has distinct anti-particles, while the latter is its own antiparticle. This question may be resolved by searching for double beta decay accompanied by no neutrinos. We will contribute to the analysis of data obtained by a "demonstrator module" attempting to observe such decays.o We have recently joined the ATLAS experiment at CERN, a general purpose detector operating at the LHC. Our initial work will be to support the experiment by contributing to its ability to identify interesting events rapidly for recording and further analysis. We will also contribute to the search for the Higgs boson, the last missing piece in the Standard Model of particle physics. We will do this by helping to optimise the search for its decays to pairs of tau leptons, heavy relatives of the electron.o We propose to continue our research and development of high power accelerators for the generation of proton, muon and neutrino beams. We have in mind future neutrino factories, although other machines could benefit from our research. Such neutrino factories, if built, would continue to develop the theme of research into neutrino oscillations and matter-antimatter asymmetry of neutrinos outlined above. Such machines could also bring many benefits to medicine and industry.o We propose to continue our research and development of position- and energy-sensitive detectorsfor 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 schoolsand articles in popular science publications.o Supported by a strong University strategy and ethos in KE, we will continue to pursue all avenuesfor possible knowledge exchange.

拟议研究的范围在于五个不同的领域：含有LHCB美容夸克的颗粒物理学；具有T2K和Supernemo的中微子物理学；希格斯和新现象在阿特拉斯搜索；新的高强度质子，MUON和中微子束的加速器研究和开发；检测器研发。它还包括外展和知识交流计划。详细介绍：o我们旨在进一步对LHCB实验的Beautymesons的衰减中的物质/抗物不对称性（CP违规）进行研究。这很重要，因为我们在过去的实验中表明，在弱规模上违反CP的主要来源与CP违规的标准模型机构一致。但是，宇宙学的考虑表明，自然界中应有其他违反CP的来源，因此我们旨在对美容媒介进行进一步的敏感测试，以查看是否有任何证据表明有其他违反CP的侵犯或自然界中其他新物理学来源可能会出现在这种衰败中。这些是非常轻，中性的颗粒，例如，在太阳和放射性β衰减中被授予。他们最近被发现了Tooscillate，即。在传播时，将一种类型传输到另一种类型。我们已经建立了现在在日本运行的T2K实验的一部分。对早期数据的分析给出了先前未观察到的兆子中微子振荡的诱人提示。我们的目标是继续运行该实验，希望确认这些初步提示。如果得到证实，效果的巨大性将为继续寻找中微子振荡与抗神经统治之间寻找不对称性的机会。我们进一步计划为SuperNemo实验做出贡献，该实验旨在确定中微子的性质，如所谓的Dirac或Majoara粒子。前者具有独特的抗颗粒，而后者是其自身的反粒子。可以通过搜索双重β衰变（不含中微子）来解决这个问题。我们将有助于对试图观察这种衰减的“演示器模块”获得的数据的分析。我们的最初工作将是通过促进其快速识别有趣事件进行记录和进一步分析的能力来支持实验。我们还将为搜索希格斯玻色子的搜索做出贡献，这是粒子物理标准模型中的最后一块。我们将通过帮助优化对tau lept子的衰减的搜索来做到这一点，我们建议我们继续我们的高功率加速器的研究和开发，以生成质子，muon和中性束。我们有未来的中微子工厂，尽管其他机器可以从我们的研究中受益。这样的中微子工厂如果建造，将继续发展上中微子振荡的研究主题，以及上微子的中微子不对称的主题。这样的机器也可能为医学和行业带来许多好处。

项目成果

Measurements of W ? and Z ? production in p p collisions at s = 7 TeV with the ATLAS detector at the LHC

W 的测量值？

• DOI: 10.1103/physrevd.87.112003
• 发表时间: 2013
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Aad G

Search for new resonances in W? and Z? final states in pp collisions at s = 8 TeV with the ATLAS detector

寻找 W 中的新共振？

• DOI: 10.1016/j.physletb.2014.10.002
• 发表时间: 2014
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: Aad G

Measurement of upsilon production in 7 TeV p p collisions at ATLAS

ATLAS 7 TeV pp 碰撞中 upsilon 产量的测量

• DOI: 10.1103/physrevd.87.052004
• 发表时间: 2013
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Aad G

Measurement of the flavour composition of dijet events in pp collisions at $\sqrt{s}=7\ \mbox{TeV}$ with the ATLAS detector

使用 ATLAS 探测器测量 $sqrt{s}=7 mbox{TeV}$ pp 碰撞中 dijet 事件的风味成分

• DOI: 10.1140/epjc/s10052-013-2301-5
• 发表时间: 2013
• 期刊: The European Physical Journal C
• 作者: Aad G

Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton collisions at s = 7 TeV with the ATLAS detector

使用 ATLAS 探测器在 s = 7 TeV 的质子-质子碰撞中搜索具有 μ 子和多轨位移顶点的最终状态的长寿命重粒子

• DOI: 10.1016/j.physletb.2013.01.042
• 发表时间: 2013
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: Aad G