Capital Equipment in connection with the Sheffield particle physics CG 2015

与谢菲尔德粒子物理 CG 2015 有关的资本设备

• 批准号: ST/N001141/1
• 负责人: Neil Spooner
• 金额: $ 2.75万
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FN001141%2F1
• 关键词: Capital; Equipment; connection; Sheffield; particle

Now is an exceptional time for discoveries in particle physics and particle astrophysics. The equipment proposal made here is designed to support the research we wish to conduct at Sheffield that is at the heart of this endeavor. It is closely associated with our STFC consolidated grant programme request for the period 2015-2019. Foremost amongst our work recently has been involvement in the discovery by ATLAS of a Higgs boson particle. Members of the group led and helped to develop the key 4-lepton analysis upon which the discovery was based. This work will continue but, preparing for the future, the equipment we are seeking will be critical to expanding our generic role in the ATLAS upgrade programme to build key components of a new ATLAS tracker. Our involvement in the T2K experiment in Japan also greatly benefited from confirmation of a non-zero third neutrino mixing angle, a result fundamental to our understanding of the neutrino. The group's respected work in neutrino analyses for T2K, particularly of so-called charge current and neutral current events, will also continue. However, here, bolstered by the exciting new results, our capital request is key to allowing us to participate in next generation long baseline neutrino experiments for CP violation aimed to unravel the mystery of antimatter in the Universe, notably using LBNE/F in the US and Hyper-K in Japan. For these our particular focus will be on detector construction and the requested equipment will be critical to underpinning this. For instance, we plan leading work on the precursor LAr1-ND experiment at Fermilab where we will construct the central Anode Plane Array for the detector. In parallel we need to expand our pioneering liquid argon R&D. The purifier and impurity monitoring apparatus requested will allow us to produce leading results in this area, for instance on the physics of charge transport in liquid argon. This will also allow us to establish novel detector prototypes at the new CERN-based neutrino platform and for LBNE/F itself. For particle astrophysics we plan to develop new efforts on detection of dark matter, thought to comprise 90% of the Universe. There is strong motivation here because the US LUX experiment recently produced a step-change in sensitivity to dark matter particles. Supporting our computing hardware will enable us to lead analysis for the EDELWEISS experiment and then lead key simulations for the upcoming LZ experiment in the US. Our pioneering work on detectors with sensitivity to galactic signatures can also be supported this way. This includes the DRIFT direction sensitive experiment at Boulby and the new DM-ICE250 NaI experiment, which US collaborators recently agreed will be hosted at Boubly to seek an annual modulation signal for dark matter. Meanwhile, our generic detector R&D and knowledge exchange programme is vital to underpinning the group's expertise and skills-base. The requested equipment focused on radio-assay of materials is required so that we can maintain leading studies of rare backgrounds that hinder many rare-event experiments, but that also have relevance in industry. For instance radon detection. This can benefit from our historic links to the Boulby deep underground science laboratory. Other areas that can benefit from the capital programme, particularly in the electronics items requested, include our muon tomography projects for climate change, spin-out work on novel motor control electronics and our novel welding technology. The latter requires, in particular, the new state of the art workshop machines requested. Our long-standing efforts to develop liquid argon technology for neutrino physics are also relevant to medical imaging requirements. The data acquisition and analytical instrumentation requested can greatly aid this to complete a new prototype instrument, building on MRC investment, as well for our core neutrino programme.

现在是粒子物理和粒子天体物理发现的特殊时刻。这里提出的设备建议旨在支持我们希望在谢菲尔德进行的研究，这是这项努力的核心。它与我们的STFC 2015-2019年综合赠款方案请求密切相关。我们最近的工作中最重要的是参与了ATLAS发现希格斯玻色子的工作。该小组的成员领导并帮助开发了这一发现所基于的关键的4-轻子分析。这项工作将继续进行，但在为未来做准备时，我们正在寻找的设备对于扩大我们在ATLAS升级计划中的通用角色至关重要，以制造新的ATLAS跟踪器的关键部件。我们参与日本的T2K实验也大大得益于第三中微子混合角非零的确认，这一结果是我们理解中微子的基础。该小组在T2K中微子分析方面备受尊敬的工作，特别是所谓的电荷电流和中性电流事件，也将继续下去。然而，在令人兴奋的新结果的支持下，我们的资本申请是允许我们参与下一代长基线中微子CP破坏实验的关键，该实验旨在揭开宇宙中反物质的谜团，特别是使用美国的LBNE/F和日本的Hyper-K。对于这些，我们将特别关注探测器的建造，而所需的设备将是支持这一点的关键。例如，我们计划在费米实验室进行先驱LAr1-ND实验的领先工作，在那里我们将为探测器建造中央阳极平面阵列。同时，我们需要扩大我们开创性的液态Ar研发，所需的净化器和杂质监测设备将使我们能够在这一领域取得领先成果，例如在液态Ar中电荷传输的物理方面。这也将使我们能够在新的基于欧洲核子研究中心的中微子平台和LBNE/F本身建立新的探测器原型。对于粒子天体物理学，我们计划在探测暗物质方面做出新的努力，暗物质被认为占宇宙的90%。这里有强烈的动机，因为美国的LUX实验最近产生了对暗物质粒子敏感度的阶梯变化。支持我们的计算硬件将使我们能够领导对Edelweiss实验的分析，然后领导即将在美国进行的LZ实验的关键模拟。我们在对星系信号敏感的探测器方面的开创性工作也可以通过这种方式得到支持。这包括布尔比的漂移方向敏感实验和新的DM-ICE250 NaI实验，美国的合作者最近同意将在布布利举办该实验，以寻找暗物质的年度调制信号。同时，我们的通用检测器研发和知识交流计划对于巩固集团的专业知识和技能基础至关重要。所要求的专注于材料无线电分析的设备是必需的，这样我们就可以保持对稀有背景的领先研究，这些背景阻碍了许多罕见事件的实验，但也与工业相关。例如，氡检测。这可以从我们与博尔比深层地下科学实验室的历史联系中受益。其他可受惠于基本建设计划的领域，特别是所要求的电子产品，包括我们针对气候变化的Muon断层扫描项目、新型电机控制电子产品的衍生工作以及我们的新型焊接技术。后者尤其需要所要求的最先进的车间机器。我们为中微子物理开发液态氩技术的长期努力也与医学成像要求有关。所要求的数据获取和分析仪器可以极大地帮助这项工作完成一个新的原型仪器，建立在MRC投资的基础上，以及我们的核心中微子计划。