Chiral perturbation theory in the Schwinger model
- Department of Physics and Astronomy, Iowa State University of Science and Technology, Ames, Iowa 50011 (United States)
- Institut fuer Theoretische Physik, Universitaet Heidelberg, Philosophenweg 19, D-69120 Heidelberg (Germany)
The Schwinger model is quantum electrodynamics (QED) in one space and one time dimension with massless fermions (quarks). The model, in its massless form, is exactly solvable, so one can explore properties which are otherwise (e.g., in QCD) inaccessible. Here we investigate the effect of a small fermion mass on the mass of the Schwinger boson, and define and evaluate its scalar momentum density. We utilize this example to explore methods, such as discretization and {open_quote}{open_quote}near{close_quote}{close_quote} light front quantization, in order to elucidate their utility in more realistic theories. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- Iowa State University
- DOE Contract Number:
- FG02-87ER40371
- OSTI ID:
- 284829
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 12 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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