Particle Physics and Cosmology beyond the Standard Model

超越标准模型的粒子物理学和宇宙学

• 批准号: SAPIN-2016-00039
• 负责人: Pospelov, Maxim
• 金额: $ 5.83万
• 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: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=616808
• 关键词: Particle; Physics; Cosmology; beyond; Standard

The discovery of the last missing piece of the Standard Model (SM), the Higgs boson, is a momentous achievement for subatomic physics. This discovery refocusses our field toward searches for physics beyond the Standard Model (BSM). Despite its astounding success, the SM is not the final theory of the subatomic world, as it leaves unexplained the origin of neutrino masses and dark matter, and faces conceptual difficulties with the stability of electroweak scale. I am proposing theoretical research program in subatomic physics that aims at finding the most sensitive way of testing SM and searching for BSM at all recognized frontiers of fundamental physics: energy, intensity, precision, cosmology and dark matter physics. My efforts at the energy frontier will be focused on the Higgs boson physics, and its BSM modifications, as well as on the SM with extended gauge structures. This part of the proposal directly relates to the ATLAS Canada research program. At the intensity frontier I plan to intensify the studies of BSM via particle production in neutrino scattering, as well as continue my research program on light (GeV and sub-GeV) BSM physics. Significant attention will be paid to the problem of detection of light dark matter, especially to the method pioneered by my group and collaborators: pair production of light states followed by their detection in the large volume neutrino detectors. The precision frontier is featured in my proposal through theoretical studies of the properties of the muons (including a search for resolution to some famous discrepancies between theory and experiment). I plan to develop concepts for new experiments that will further test the muon-electron universality. At cosmology and dark matter frontier, I propose to study consequences of very light and very weakly coupled fields, expanding the range from axions to dark photons, and to other possible light states. The question of direct detection of such light states in the underground experiments, such as those hosted by SNOLAB, will be addressed. Finally, I will continue my investigations into gravitational theories with modified Lorentz invariance, as a possible pathway to the quantum theory of gravity. The outcome of my research will be beneficial to Canadian science: a large number of HQP will be trained, and new possible directions for subatomic physics research possibly uncovered.

标准模型（SM）的最后一个缺失的部分（希格斯玻色子）的发现是亚原子物理学的重大成就。这一发现将我们的领域重新集中在搜索标准模型（BSM）之外的物理学方面。尽管取得了惊人的成功，但SM并不是亚原子世界的最终理论，因为它留下了无法解释的中微子质量和暗物质的起源，并且在Electroweak量表的稳定性上面临概念上的困难。我提出了亚原理中的理论研究计划，旨在寻找测试SM和搜索BSM的最敏感方式，从而所有公认的基本物理学前沿：能量，强度，精度，宇宙学和暗物质物理学。 我在Energy Frontier的努力将集中在Higgs Boson物理学及其BSM修改以及具有扩展量规结构的SM上。该提案的这一部分直接与加拿大Atlas Research计划有关。在强度边界，我计划通过中微子散射中的颗粒产生来加强BSM的研究，并继续我的光（GEV和Sub-GEV）BSM物理学研究计划。将大大关注检测光暗物质的问题，尤其是我小组和合作者开创的方法：光的生产光态，然后在大容量中微子检测器中检测到它们。我的提案通过对穆斯的特性的理论研究（包括寻找解决理论与实验之间一些著名差异的解决方案），在我的建议中列出了精确的边界。我计划开发新实验的概念，以进一步测试MUON-电子通用性。在宇宙学和暗物质边界，我建议研究非常轻巧且非常弱的磁场的后果，从轴到深色光子以及其他可能的光态扩展范围。将解决地下实验中直接检测此类光态的问题，例如Snolab托管的问题。最后，我将继续对重力理论进行调查，并以修改的洛伦兹不变性，这是通往重力理论的可能途径。 我的研究结果将对加拿大科学有益：将培训大量的HQP，以及可能被发现的下部原子物理学研究的新可能方向。