Navigating the LHC Era

引领大型强子对撞机时代

• 批准号: 1417118
• 负责人: Adam Martin
• 金额: $ 13.5万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2017-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1417118&HistoricalAwards=false
• 关键词: Navigating; LHC; Era

This award funds the research activities of Professor Adam Martin at the University of Notre Dame. The discovery of the Higgs boson at the Large Hadron Collider (LHC) in July 2012 has placed the high-energy physics community in a unique, exciting place -- having available a machine dedicated to pushing into unexplored territory and a new tool, the Higgs boson, to utilize. This project aims to capitalize on this situation by squeezing the most physics out of the existing LHC dataset, looking for hints of other particles and/or forces. The hints of new particles/forces arising as the result of this project can be searched for in detail once the second phase of the CERN LHC begins in mid-2015. This work has a broad impact in that it will guide future experimental searches and involves close collaboration with experimenters, both at Notre Dame and at CERN. Professor Martin's research project involves two complementary approaches. One approach is to make sure there are no `holes' in the data where new physics could hide. This requires improving existing searches, adapting searches to alternative scenarios, and even motivating new searches. Examples would include nearly degenerate supersymmetric particles, where one decays into the other with a macroscopic decay length. The second approach is to use the Higgs boson as an indirect probe of new physics, studying its properties in detail and looking for deviations. In particular, much needs to be done regarding the differential "moments" of Higgs production. Both approaches require a mixture of model building and collider physics. To further broaden the impact of this project, Professor Martin will collaborate with QuarkNet, an NSF-funded outreach program for high school teachers and students. He will act as an particle physics mentor, providing basic theory context for the hands-on QuarkNet activities.

该奖项资助圣母大学亚当·马丁教授的研究活动。2012年7月，大型强子对撞机（LHC）发现了希格斯玻色子，这让高能物理学界处于一个独特而激动人心的境地——有了一台专门用于探索未知领域的机器和一个可以利用的新工具——希格斯玻色子。这个项目旨在利用这种情况，从现有的大型强子对撞机数据集中挤出最多的物理，寻找其他粒子和/或力的线索。一旦欧洲核子研究中心（CERN）大型强子对撞机（LHC）的第二阶段于2015年年中开始，这个项目产生的新粒子/力的线索就可以被详细搜索。这项工作具有广泛的影响，因为它将指导未来的实验搜索，并涉及与巴黎圣母院和欧洲核子研究中心的实验人员的密切合作。马丁教授的研究项目涉及两种互补的方法。一种方法是确保数据中没有可能隐藏新物理学的“漏洞”。这需要改进现有的搜索，使搜索适应其他场景，甚至激发新的搜索。例子包括近简并的超对称粒子，其中一个以宏观衰变长度衰变成另一个。第二种方法是使用希格斯玻色子作为新物理学的间接探测，详细研究其性质并寻找偏差。特别是，关于希格斯粒子产生的微分“矩”，还有很多工作要做。这两种方法都需要混合模型构建和对撞机物理。为了进一步扩大这个项目的影响，Martin教授将与QuarkNet合作，QuarkNet是一个由nsf资助的面向高中教师和学生的推广项目。他将担任粒子物理导师，为动手QuarkNet活动提供基本理论背景。