Theoretical studies of scalar particles in the standard model: Scalar mesons and Higgs Bosons

标准模型中标量粒子的理论研究：标量介子和希格斯玻色子

• 批准号: 137501-2010
• 负责人: Steele, Thomas
• 金额: $ 2.55万
• 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: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=545450
• 关键词: Theoretical; studies; scalar; particles; standard; Theoretical; studies; scalar; particles; standard

The physics of elementary particles gives insight into the most fundamental constituents of matter and their behaviour. Many of the frontiers of elementary particle physics involve scalar particles. Scalars have no intrinsic spin, which means that there is no preferred direction for these particles when they are at rest. The most prominent example of a scalar particle is the Higgs boson, a particle which is essential to our understanding of the origin of mass for all elementary particles via the Higgs mechanism associated with symmetry breaking in the electroweak interaction. Surprisingly, there is still no direct experimental evidence of the Higgs particle that is so central to our theoretical understanding of the fundamental interactions of nature. The experimental program of the Large Hadron Collider (LHC) at CERN should be able to confirm or refute the existence of the Higgs. In addition to the fundamental challenges of scalar particles in the electroweak sector, scalar particles composed of quarks also provide scientific challenges in the strong interaction sector. In particular, scalar mesons provide some of the most intriguing challenges in hadronic physics, with interpretations that include exotic states beyond the quark-antiquark states of the naive quark model. Some of these exotic interpretations of the scalar mesons include mesons containing no quarks (only gluons) or additional quark-antiquark pairs.

基本颗粒的物理学可深入了解物质及其行为的最基本成分。 基本粒子物理的许多边界都涉及标量颗粒。 标量没有固有的自旋，这意味着当这些粒子处于静止时，它们没有首选方向。 标量粒子的最突出的例子是希格斯玻色子，这对于我们通过与电动eakeeak相互作用中对称性破坏相关的HIGGS机制对所有基本粒子的质量的理解至关重要。 令人惊讶的是，仍然没有直接的实验证据表明，希格斯粒子对我们对自然基本相互作用的理论理解至关重要。 CERN大型强子对撞机（LHC）的实验程序应该能够确认或反驳Higgs的存在。 除了电动行业标量颗粒的基本挑战外，由夸克组成的标量颗粒还提供了强烈相互作用部门的科学挑战。 尤其是，标量介子在HADRONIC物理学中提供了一些最有趣的挑战，其解释包括何种天真夸克模型的Quark-Antiquark状态以外的外来状态。 标量介子的这些异国情调的解释中包括包含夸克（只有gluons）或其他Quark-Antiquark对的介体。