Neutrinos in Astrophysics and Cosmology

天体物理学和宇宙学中的中微子

基本信息

批准号：
1205745
负责人：
Cecilia Lunardini
金额：
$ 54万
依托单位：
Arizona State University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2012
资助国家：
美国
起止时间：
2012-09-01 至 2016-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1205745&HistoricalAwards=false
关键词：
Neutrinos Astrophysics Cosmology

项目摘要

Ranging from the low-energy phenomena of cosmology to the highest energy of stellar jets, neutrinos are a fundamental ingredient of the universe that we observe, and offer unique windows into its mysteries. The purpose of this project is a theoretical study of these windows. Part of the research will be on neutrinos from core collapse supernovae: how these neutrinos are affected by flavor oscillations, and what their detection will teach us about the physics that takes place at extremely high density near the collapsed core. High-energy neutrino emission will also be investigated as a way to explore the physics of particle accelerators in our galaxy and beyond, with focus on propagation effects and detectability at present and future neutrino telescopes. Another area of study will be the physics of neutrinos in the early universe, how they connect to the nature of the dark matter, and how they can possibly reveal the existence of new particles and forces. This project will contribute to the ongoing transition to a new phase of neutrino physics, characterized by new, more powerful experiments and by a deeper understanding of the neutrino phenomenology. Being based at a large public university, the project will benefit young scientists through educational activities and direct involvement in research. Specifically, the grant will support a postdoc and a graduate student, thus offering them an opportunity to enter the field, and join a new generation of neutrino physicists that will sustain the new phase of discoveries ahead.

从宇宙学的低能现象到恒星喷气机的最高能量，中微子是我们观察到的宇宙的基本要素，并为其奥秘提供了独特的窗户。该项目的目的是对这些窗口的理论研究。这项研究的一部分将来自核心崩溃超新星的中微子：这些中微子如何受到风味振荡的影响，以及它们的检测将教会我们有关在倒塌核心附近极高密度的物理学的知识。还将研究高能中微子的发射，以探索我们银河系及其他地区粒子加速器物理的一种方式，目前和未来中微子望远镜目前侧重于传播效应和可检测性。研究的另一个领域将是早期宇宙中中微子的物理学，它们如何与暗物质的本质联系在一起，以及它们如何揭示新颗粒和力的存在。该项目将有助于持续过渡到新的中微子物理学阶段，其特征是新的，更有力的实验以及对中微子现象学的深入了解。该项目位于一所大型公立大学，将通过教育活动和直接参与研究而受益。具体来说，该赠款将支持博士后和研究生，从而为他们提供进入该领域的机会，并加入新一代的中微子物理学家，这些物理学家将维持未来的新发现阶段。