The QCD Mass Spectrum

QCD 质谱

• 批准号: 327548-2007
• 负责人: Harnett, Derek
• 金额: $ 0.73万
• 依托单位: Fraser Valley
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=397831
• 关键词: QCD; Mass; Spectrum

Quantum chromodynamics (QCD) is the theory of physics that describes the strong nuclear force. The strong force is responsible for binding together protons and neutrons to form atomic nuclei. However, we now know that protons and neutrons themselves are made up of even smaller particles known as quarks and so, in this light, the strong force ought to be thought of as the interaction responsible for binding quarks together. Particles like protons and neutrons which are comprised of quarks are collectively referred to as hadrons, and, in the last 75 years, loads of new hadrons have been discovered. A major goal in particle physics today then is to predict hadron properties from known properties of quarks. This is a lot tougher than it sounds! The whole is not simply the sum of the parts here.

量子染色体动力学（QCD）是描述强核力量的物理理论。 强力负责将质子和中子结合在一起形成原子核。 但是，我们现在知道质子和中子本身是由称为夸克的较小颗粒组成的，因此，在这种情况下，应该将强力视为负责将夸克结合在一起的相互作用。 由夸克组成的质子和中子等颗粒被共同称为Hadron，并且在过去的75年中，已经发现了新的Hadron的负载。 当今粒子物理学的主要目标是预测夸克已知特性的强子特性。 这比听起来要艰难得多！ 整体不仅是这里的部​​分的总和。