2. Hadrons and Nuclei : Introductory Remarks Lattice Summer School Martin Savage Summer 2007 University of Washington

3. The Lectures  Topic 1 : Introduction, and the physics of single hadrons (Lecture 1)  Topic 2 : Introduction to Heavy Baryon Chiral Perturbation Theory (HB  PT) (Lecture 4)  Topic 3 : Scattering From Lattice Calculations (Lecture 2)  Topic 4 : Relevant Aspects Nuclear Physics (Lecture 3)

4. Nature

5.  Developed during 1970’s  Local Gauge Theory : SU(3) c  Building blocks are quarks (q) and gluons (g) Quantum Chromodynamics

6. Quark Masses  U : ~ 5 MeV  D : ~ 10 MeV  S : ~ 125 MeV  C : ~ 1.5 GeV  B : ~ 4.5 GeV  T : ~ 176 GeV } } Light Quarks Heavy Quarks

7. Interactions q q g g g g g g g g

8. QCD Coupling pdg

9. Symmetry Breaking  Dynamics have a Symmetry  Ground State does NOT Spontaneous Symmetry Breaking Ground State Massless Excitations

10. QCD and Symmetry Breaking UDUD L UDUD R SU(2) LR and   ~ 140 MeV N ~ 940 MeV  ~ 1232 MeV 0 M q = 0 Hadronic Spectrum …  ~ 770 MeV

11. Baryon Resonance Spectrum Capstick and Roberts, PRD58 (1998) 074011

12. A Grand Challenge for QCD and Nuclear Physics MuMu  QCD MdMd MsMs e ( M Z ) g ( M Z ),,,  QCD, How do the properties and interactions of hadrons and nuclei depend upon the fundamental parameters of nature ?

13. Fine -Tunings in Nuclear Physics are Fine-Tunings of QCD

14. What to keep in the back of your mind  When listening and thinking about these lectures, try to put everything in the context of QCD and the fundamental parameters of nature.  All of hadronic and nuclear physics must emerge from QCD  How ?? … fine-tunings  How to get quantitative results from lattice QCD