Particle physics and cosmology at space-time, energy, precision and intensity frontiers

时空、能量、精度和强度前沿的粒子物理学和宇宙学

• 批准号: 251370-2011
• 负责人: Pospelov, Maxim
• 金额: $ 5.1万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=570962
• 关键词: Particle; physics; cosmology; space; time

My research addresses the physics of Standard Model (SM) of particles and fields, and the analogue of Standard Model in cosmology - the Universe with dark energy in form of the cosmological constant and cold dark matter. There are reasons to believe that this framework, although very successful in describing phenomena at the smallest and largest space-time scales, is nevertheless incomplete. Physics beyond Standard Model represents a target for experimental and theoretical pursuit. My research program aims at studying physics beyond SM in its various manifestations. In particular, I am interested in particle dark matter, its possible non-gravitational signatures, and the ways to detect them. I also work on theoretical interpretations of rare non-standard decays of particles, and precision measurements of their properties. Contrasting such measurements with SM predictions can be used as a powerful tool to search for the signatures of New Physics. In cosmology, I study the primordial nucleochemistry in order to achieve better understanding of the abundance of light elements. I also work on the epoch when the first atoms formed and the relic light decoupled from them. Study of this radiation today reveals the energy budget of the Universe, and imposes non-trivial constraints on properties of its components.

我的研究涉及粒子和场的标准模型(SM)的物理学，以及宇宙学中标准模型的类比-具有宇宙常数和冷暗物质形式的暗能量的宇宙。有理由相信，这一框架虽然在描述最小和最大时空尺度上的现象方面非常成功，但仍然不完整。物理超越标准模型代表了实验和理论追求的目标。 我的研究计划旨在研究SM以外的各种表现形式的物理学。特别是，我对粒子暗物质、它可能的非引力特征以及探测它们的方法感兴趣。我还致力于对罕见的非标准粒子衰变的理论解释，以及对其性质的精确测量。将这样的测量结果与SM预测进行对比，可以作为寻找新物理学特征的有力工具。在宇宙学中，我学习原始核化学，以便更好地理解轻元素的丰度。我还研究了第一个原子形成的纪元，以及遗迹光与它们分离的时期。今天对这种辐射的研究揭示了宇宙的能量收支，并对其组成部分的性质施加了相当大的限制。