核色动力学导论 用量子色动力学描绘 现代核物理的蓝图 何汉新 中国原子能科学研究院
核色动力学导论 ---用量子色动力学描绘 现代核物理的蓝图 何汉新 中国原子能科学研究院
An Introduction to Nuclear OCD QCD and its applications to the systems of nucleon and nuclear structure He. ha an-xIn China Institute of Atomic Energy
An Introduction to Nuclear QCD --QCD and its applicationsto the systems of nucleon and nuclear structure He, Han-xin China Institute of Atomic Energy
Contents 1. What is nuclear QCD? Why apply QCD to nucleonic and nuclear systems? 2. Bases of nuclear OCD QCD and its properties 3. Nucleon and nuclei at high-energy scale 4. Nonperturbative QCD studies 5. Nucleon, nuclei at low-energy scale 6. Summery
Contents 1. What is nuclear QCD? Why apply QCD to nucleonic and nuclear systems? 2. Bases of nuclear QCD: QCD and its properties 3. Nucleon and nuclei at high-energy scale 4. Nonperturbative QCD studies 5. Nucleon, nuclei at low-energy scale 6. Summery
1. What is nuclear QCD? *Why apply qcd to nucleonic and nuclear systems raditional nuclear physIcs nuclei are composed of point-like nucleons Dynamics: Quantum mechanics DIS experiments: nucleon has structure Quark model Proton: uud Nutron: ddu Strong interaction dynamics: QCD Nuclear chromodynamics
1. What is nuclear QCD? *Why apply QCD to nucleonic and nuclear systems? • Traditional nuclear physics: nuclei are composed of point-like nucleons Dynamics: Quantum mechanics • DIS experiments: nucleon has structure • Quark model: Proton: uud Nutron: ddu • Strong interaction dynamics: QCD • Nuclear chromodynamics
Quark model of hadrons 夸克模型假设强子是复合粒子,构成强子的基本砖块称为夸克.夸克是 自旋为1/2、重子数为1/3、带有分数电荷的费米子,它还具有“味”、“色”的 量子数.已知的六种“味”的夸克为:上(u)、下(d)粲(c)、奇(s)、顶(t)、底 (b).量子数“色”是由夸克服从狄拉克-费米自旋统计原理(见表1.1)要 表11夸克与它们的量子数 味(质量电荷同位旋/3奇异数S粲数C底数B顶数T u0.002-000823 d0.0060.015-1/3 1→-1.6 23 000 0.1→0.3 1/3 00000 ~174 2/3 0000 001000 000010 b41→45 1/3
Quark Model of Hadrons