Discovering New Physics Beyond the Standard Model with Cosmological Data Sets

利用宇宙学数据集发现超越标准模型的新物理

• 批准号: 1813694
• 负责人: Cora Dvorkin
• 金额: $ 49.41万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-07-01 至 2021-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1813694&HistoricalAwards=false
• 关键词: Discovering; New; Physics; Beyond; Standard

Cosmological observations over the last few decades have provided us with a standard model of cosmology, where the six parameters that describe the data are constrained with percent-level accuracy. However, fundamental questions in our understanding of the universe remain unanswered. This project will address the following major puzzles in fundamental physics: (1) What is the physics that seeded the first structures in the universe? (2) What is the nature of Dark Matter and how is it related to particle physics? Dr. Dvorkin will continue to collaborate with the Boston Area Girls STEM Collaborative in an effort to improve gender imbalance in academia.The shape of temperature fluctuations across the sky in the Cosmic Microwave Background (CMB) can potentially contain important information regarding the hypothetical earliest phase of the universe known as inflation. This project will develop methods to analyze CMB data to help narrow down the shape of the inflation potential. Possible dark matter particles lighter than hydrogen will also be investigated.This 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.

过去几十年来的宇宙学观测为我们提供了一个标准的宇宙学模型，其中描述数据的六个参数都受到了精确度的限制。 然而，我们对宇宙的理解中的基本问题仍然没有答案。 这个项目将解决基础物理学中的以下主要难题：（1）是什么物理学在宇宙中播种了第一个结构？(2)暗物质的本质是什么，它与粒子物理学有什么关系？ Dvorkin博士将继续与波士顿地区女孩STEM协作组织合作，努力改善学术界的性别不平衡。宇宙微波背景（CMB）中整个天空的温度波动形状可能包含有关宇宙假设的最早阶段的重要信息，称为膨胀。 该项目将开发分析CMB数据的方法，以帮助缩小通胀潜力的范围。 该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

A novel CMB component separation method: hierarchical generalized morphological component analysis

• DOI: 10.1093/mnras/staa744
• 发表时间: 2020-05-01
• 期刊: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
• 影响因子: 4.8
• 作者: Wagner-Carena, Sebastian;Hopkins, Max;Dvorkin, Cora
• 通讯作者: Dvorkin, Cora

Finding eV-scale Light Relics with Cosmological Observables

利用宇宙学可观测值寻找电子级光遗迹

• 发表时间: 2020
• 期刊: ArXivorg
• 作者: DePorzio, Nicholas;Weishuang, Linda Xu;Muñoz, Julian B.;Dvorkin, Cora
• 通讯作者: Dvorkin, Cora

Accurately Weighing Neutrinos with Cosmological Surveys

通过宇宙学巡天准确称量中微子

• 发表时间: 2020
• 期刊: ArXivorg
• 作者: Xu, Weishuang Linda;DePorzio, Nicholas;Muñoz, Julian B;Dvorkin, Cora
• 通讯作者: Dvorkin, Cora

Probing the small-scale matter power spectrum with large-scale 21-cm data

用大尺度 21 厘米数据探测小尺度物质功率谱

• DOI: 10.1103/physrevd.101.063526
• 发表时间: 2020
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Muñoz, Julian B.;Dvorkin, Cora;Cyr-Racine, Francis-Yan
• 通讯作者: Cyr-Racine, Francis-Yan