Searches for New Physics with Colliders and Cosmology

用对撞机和宇宙学寻找新物理学

• 批准号: 2112540
• 负责人: Adam Martin
• 金额: $ 76.5万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2112540&HistoricalAwards=false
• 关键词: Searches; New; Physics; Colliders; Cosmology

This award funds the research activities of Professors Antonio Delgado, Adam Martin, and Yuhsin Tsai at the University of Notre Dame.The goal of theoretical particle physics is to understand the fundamental building blocks of the universe around us. There are two avenues towards this achieving this goal. The first is to analyze collisions of protons slammed together at the highest energies available, with the goal of investigating the elementary particles and their interactions at very short length scales. The second is to study the history of the universe through the cosmic microwave background (CMB) radiation --- i.e., radiation from a very early epoch in the evolution of the universe --- as well as through other cosmological signals. Pursuing both of these directions, Professors Delgado, Martin, and Tsai will conduct research that casts a wide net for signals of new physics using a variety of techniques. As such, this research advances the national interest by promoting the progress of science towards illuminating the principal laws of nature. This work also 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 (the European Laboratory for Particle Physics). Professors Delgado, Martin, and Tsai will also teach physics at the undergraduate and graduate levels, lecture at graduate physics summer schools, organize workshops and conferences around the world, and teach particle physics to high school teachers and students through the QuarkNet program, both nationally and internationally.More technically, Professor Martin will work on improving effective field theory-based searches for new phenomena, with particular emphasis on the uncertainties from higher order terms. Professor Delgado will study novel signals from R-parity violating supersymmetry. He will also study Dark Matter model building in supersymmetry and more general two-Higgs-doublet models. Professor Tsai will adapt existing cosmology computer codes to study how dark photons and Mirror Twin Higgs models can be bounded by current and future cosmological observations. Finally, Professors Martin and Tsai will together study ‘hotspot' signals in the CMB from pairs of super-heavy particles created in the early universeThis award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项资助了圣母大学Antonio Delgado、Adam Martin和Yuhsin Tsai教授的研究活动。理论粒子物理学的目标是了解我们周围宇宙的基本组成部分。 实现这一目标有两条途径。 第一个是分析质子以最高能量撞击在一起的碰撞，目的是研究基本粒子及其在非常短的长度尺度上的相互作用。 二是通过宇宙微波背景辐射（CMB）研究宇宙的历史，来自宇宙演化早期的辐射-以及其他宇宙学信号。 追求这两个方向，德尔加多教授，马丁和蔡将进行研究，使用各种技术为新物理学的信号投下广泛的网。 因此，这项研究通过促进科学的进步来阐明自然的主要规律，从而促进国家利益。 这项工作也有广泛的影响，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粒子物理实验室（CERN）的实验人员密切合作。 Delgado教授、Martin教授和Tsai教授还将在本科和研究生阶段教授物理学，在研究生物理学暑期学校讲课，在世界各地组织研讨会和会议，并通过QuarkNet项目在国内和国际上向高中教师和学生教授粒子物理学。从技术上讲，Martin教授将致力于提高基于场论的有效搜索新现象的能力，特别强调来自高阶项的不确定性。德尔加多教授将研究R-宇称违反超对称性的新信号。 他还将研究超对称性中的暗物质模型构建和更一般的双希格斯模型。蔡教授将调整现有的宇宙学计算机代码，以研究暗光子和镜像双希格斯模型如何受到当前和未来宇宙学观测的约束。 最后，Martin教授和Tsai教授将共同研究早期宇宙中产生的超重粒子对在CMB中的“热点”信号。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估来支持。

项目成果

Effective field theory of Stückelberg vector bosons

Stückelberg矢量玻色子的有效场论

• DOI: 10.1103/physrevd.106.055020
• 发表时间: 2022
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Kribs, Graham D.;Lee, Gabriel;Martin, Adam
• 通讯作者: Martin, Adam

ggh variations

ggh 变异

• DOI: 10.1103/physrevd.105.076004
• 发表时间: 2022
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Martin, Adam;Trott, Michael
• 通讯作者: Trott, Michael

Mirror twin Higgs cosmology: constraints and a possible resolution to the H0 and S8 tensions

• DOI: 10.1007/jhep05(2022)050
• 发表时间: 2021-10
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: Saurabh Bansal;Jeong Han Kim;C. Kolda;M. Low;Yuhsin Tsai

LHC Search Strategy for Squarks in Higgsino-LSP Scenarios with Leptons and b-Jets in the Final State

LHC 在轻子和 b 喷流处于最终状态的 Higgsino-LSP 场景中搜索夸克的策略

• DOI: 10.3390/particles5030023
• 发表时间: 2022
• 期刊: Particles
• 影响因子: 1.4
• 作者: Arganda, Ernesto;Delgado, Antonio;Morales, Roberto A.;Quirós, Mariano
• 通讯作者: Quirós, Mariano

Hunting squarks in Higgsino LSP scenarios at the LHC

• DOI: 10.1103/physrevd.107.015024
• 发表时间: 2021-12
• 期刊: Physical Review D
• 影响因子: 5
• 作者: E. Arganda;Antonio Delgado;R. Morales;M. Quir'os