Theory and Phenomenology of New Particles in the Standard Model and Beyond

标准模型及其他模型中新粒子的理论和现象学

• 批准号: SAPIN-2015-00038
• 负责人: Steele, Thomas
• 金额: $ 2.67万
• 依托单位: University of Saskatchewan
• 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=591533
• 关键词: Theory; Phenomenology; New; Particles; Standard

In electroweak symmetry breaking mechanisms with classically scale-invariant Higgs sectors, the Higgs mechanism emerges from the quantum corrections to the effective potential (i.e. the Coleman-Weinberg mechanism). In this approach, the experimentally observed 125 GeV Higgs mass can be accommodated in these scale-invariant models by a large Higgs self-coupling solution, and the small mass scale of the Higgs boson is attributed to a custodial classical scale-invariance symmetry.  With the inclusion of a Higgs portal interaction, extensions of this mechanism beyond the Standard Model  provides a natural scenario for cosmologically-stable dark matter.

在具有经典尺度不变希格斯扇区的电弱对称破缺机制中，希格斯机制是从量子修正到有效势（即Coleman-Weinberg机制）中出现的。在这种方法中，实验观测到的125 GeV希格斯质量可以通过大希格斯自耦合解决方案容纳在这些尺度不变模型中，并且希格斯玻色子的小质量尺度归因于可控制的经典尺度不变对称性。随着希格斯入口相互作用的加入，这一机制在标准模型之外的扩展为宇宙稳定的暗物质提供了一个自然的场景。