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Sussex EPP 2012 Consolidated Grant Supplement

苏塞克斯 EPP 2012 年综合拨款补充

基本信息

批准号：
ST/M000753/1
负责人：
Antonella De Santo
金额：
$ 1.21万
依托单位：
University of Sussex
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%2FM000753%2F1
关键词：
Sussex EPP 2012 Consolidated Grant

项目摘要

The Sussex Experimental Particle Physics group is involved in three strands of Particle Physics: the ATLAS experiment atCERN's Large Hadron Collider; the SNO+ neutrino experiment at SNOLAB in Canada; and the nEDM experiment at ILL inGrenoble, France. All three experiments probe some of the most fundamental properties of Nature and seek to findevidence for new physics phenomena.Sussex makes leading contributions to the analysis of ATLAS data, searching for evidence of supersymmetry in protonprotoninteractions where electrons, muons or taus are produced in the final state. The discovery of supersymmetry wouldprovide evidence for new physics as well as possibly a link between particle physics and cosmology, by uncovering thenature of the elusive Dark Matter in our universe. Sussex also makes important contribution to the ATLAS trigger system(which acts like the experiment's "brain") -- through participation in trigger operations and in the development andmaintenance core software for the trigger system. The group is also involved in preparations for future upgrades of theATLAS trigger system.Sussex provides substantial intellectual leadership in the ongoing search for an electric dipole moment (EDM) of theneutron. Finding an EDM would represent unambiguous evidence for physics beyond the SM; conversely, the absence ofany EDM, at the sensitivity for which we are aiming, would provide extremely severe constraints on models of new physics.This work also provides a link to cosmology, since the size of any neutron EDM is determined by the same CP-violatingmechanism that underlies the dominance of matter over antimatter in the Universe.Sussex plays a crucial role in the SNO+ experiment, where it leads the calibration and the dataflow activities. The group isalso becoming involved in the crucial neutrinoless double-beta decay analysis, which could both determine the mass of theneutrino and answer the long-standing question of whether the neutrino is its own antiparticle.Group members are also becoming involved, at a smaller level, in new experiments for direct Dark Matter searches.

苏塞克斯实验粒子物理小组参与了粒子物理学的三个部分：欧洲核子研究中心大型强子对撞机的ATLAS实验;加拿大SNOLAB的SNO+中微子实验;以及法国格勒诺布尔ILL的nEDM实验。所有这三个实验都探索了自然界的一些最基本的性质，并试图为新的物理现象找到证据。苏塞克斯对ATLAS数据的分析做出了主要贡献，在质子质子相互作用中寻找超对称性的证据，其中电子，μ子或τ在最终状态下产生。超对称性的发现将为新物理学提供证据，并可能通过揭示我们宇宙中难以捉摸的暗物质的性质，将粒子物理学和宇宙学联系起来。Sussex还对ATLAS触发系统（就像实验的“大脑”）做出了重要贡献-通过参与触发操作以及触发系统的开发和维护核心软件。该小组还参与了ATLAS触发系统未来升级的准备工作。苏塞克斯大学在正在进行的中子电偶极矩（EDM）研究中提供了大量的智力领导。找到EDM将代表超越SM的物理学的明确证据;相反，在我们所追求的灵敏度上，如果没有任何EDM，将对新物理学的模型提供极其严格的限制。这项工作也提供了与宇宙学的联系，由于任何中子EDM的大小都是由相同的CP决定的，苏塞克斯在SNO+实验中发挥着至关重要的作用，在那里它领导了校准和反物质活动。该小组还参与了至关重要的无中微子双β衰变分析，这既可以确定中微子的质量，也可以回答中微子是否是自己的反粒子这一长期存在的问题。小组成员还在较小的层面上参与了直接寻找暗物质的新实验。