Beyond the Standard Model Searches using Mono-Boson Final States and the ATLAS Pixel Detector Upgrade

超越使用单玻色子最终状态和 ATLAS 像素探测器升级的标准模型搜索

• 批准号: 1510727
• 负责人: Shih-Chieh Hsu
• 金额: $ 45万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-07-15 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1510727&HistoricalAwards=false
• 关键词: Beyond; Standard; Model; Searches; using

The objective of this project is to search for physics that does not have an explanation in the Standard Model (SM), the theory that classifies all the known elementary particles. Using the Large Hadron Collider (LHC) at CERN (the particle European laboratory in Switzerland) this group of scientists will look for events in the ATLAS multi-particle detector where a Z or W Boson (identified by observing electrons or muons to which it decays) is observed moving away from the proton-proton interaction point in the LHC, accompanied by an object that leaves no visible tracks in the detector. This final state can probe many fundamental mysteries of the Universe, e.g. the nature of dark matter, the existence of extra dimensions, and the existence of an extended family of Higgs Bosons predicted by some theories beyond the SM. This group will also play a role in the planned upgrade of the ATLAS detector itself. They will work on the development and use of a device that uses silicon detectors to map out the paths of charged particles passing through. This award will support one PI, a postdoctoral fellow and a graduate student. The PI will continue as a mentor in the U. Washington QuarkNet program, and will also work with high school students from local Seattle High Schools in the MasterClass program. He will also continue to organize events that bring results from the LHC closer to the public.The group will focus on W/Z + large EtransT events in which the particle recoiling against the Boson is invisible and has large, missing transverse energy. Such events would signal the existence of massive neutral particles that could have a number of origins in a variety of theories that lie beyond the SM. The group will also work on data acquisition for use with the ATLAS inner tracker.

该项目的目标是寻找标准模型（SM）中没有解释的物理学，标准模型是对所有已知基本粒子进行分类的理论。利用 CERN（位于瑞士的欧洲粒子实验室）的大型强子对撞机 (LHC)，这组科学家将在 ATLAS 多粒子探测器中寻找 Z 或 W 玻色子（通过观察其衰变的电子或 μ 子来识别）的事件。 ）被观察到远离大型强子对撞机中的质子-质子相互作用点，并伴随着一个在探测器中没有留下可见轨迹的物体。这种最终状态可以探索宇宙的许多基本奥秘，例如暗物质的本质、额外维度的存在，以及 SM 之外的一些理论所预测的希格斯玻色子大家族的存在。该小组还将在 ATLAS 探测器本身的升级计划中发挥作用。他们将致力于开发和使用一种设备，该设备使用硅探测器来绘制带电粒子穿过的路径。该奖项将支持一名 PI、一名博士后研究员和一名研究生。该 PI 将继续担任美国华盛顿 QuarkNet 项目的导师，并将与西雅图当地高中的高中生一起参与 MasterClass 项目。他还将继续组织活动，使大型强子对撞机的结果更接近公众。该小组将重点关注 W/Z + 大型 EtransT 事件，其中对玻色子的反冲粒子是不可见的，并且具有大量缺失的横向能量。此类事件将标志着大量中性粒子的存在，这些中性粒子可能在超模之外的各种理论中具有多种起源。该小组还将致力于 ATLAS 内部跟踪器使用的数据采集。