Collisions and Decays
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In the preceding two chapters we studied freely moving particles. However, a complete absence of interactions can hardly be considered realistic, for in general, particles do interact with one another or with external fields. After all, it is precisely through these interactions that the particles are observed. In this chapter, we will develop a practical method for introducing interactions among relativistic quantum fields and for calculating experimentally measurable quantities such as reaction cross-sections and decay rates.
KeywordsDecay Mode Feynman Diagram Compton Scattering External Line Distinct Particle
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Suggestions for Further Reading
A good discussion of the formulation of quantum field theory in the interaction and the Heisenberg representations can be found in
- Schweber, S. S., An Introduction to Relativistic Quantum Field Theory. Row, Peterson and Co., Evanston, IL 1961Google Scholar
More systematic treatments of the perturbative theory are found in
The reader will find other examples of physical processes in
- Bjorken, J. D. and Drell, S. D., Relativistic Quantum Mechanics. McGraw-Hill, New York 1964Google Scholar
- Gross, F., Relativistic Quantum Mechanics and Field Theory. Wiley-Interscience, New York 1993Google Scholar
- Halzen, F. and Martin, A. D. Quarks and Leptons: An Introductory Course in Modern Particle Physics. Wiley, New York 1984Google Scholar
- Nachtmann, O., Elementary Particle Physics, Concepts and Phenomena. Springer, Berlin, Heidelberg 1990Google Scholar
For further study of quantum electrodynamics, the reader may refer to
- Feynman, R. P., Quantum Electrodynamics. Benjamin, New York 1961Google Scholar