About
Starting from the notion of path integrals as developed by Feynman, we discuss field theory in zero spacetime dimensions. The concepts of perturbation expansions, connected amplitudes, Feynman diagrams, classical solutions, renormalization and the effective action are developed. The model is extended to four spacetime dimensions, and the full Feynman rules for relativisitc scalar theory derived. The S matrix and the concept of unitarity are discussed, leading to the amputation rules for S matrix elements from considerations of unitarity. The rules are extended to include particles with spin-1/2 and spin-1. The high-energy behaviour of the theory is discussed as a method to derive the gauge symmetry of the various models..
0:00:00 Slide 1
0:06:21 Slide 2
0:12:41 Slide 3
0:25:21 Slide 4
0:38:01 Slide 5
0:50:41 Slide 6
1:03:22 Slide 7
1:16:02 Slide 8
1:28:42 Slide 9
1:41:22 Slide 10
1:54:02 Slide 11
The talk
Credits and licence
- Institution
- CERN
- Department
- CERN Academic Training Lecture
- Speaker
- Ronald H P Kleiss
- Year
- 2001
- Level
- Graduate
- Language
- English
- Subjects
- Physics
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed