Jan Dereziński
Published 2013-07-03, updated 2014-05-05Version 4
We describe basic types of free fields (1) neutral scalar bosons; (2) massive vector bosons; (3) massless vector bosons; (4) charged scalar bosons; (5) Dirac fermions; (6) Majorana fermions. We also consider free field perturbed by a linear or quadratic perturbation involving a classical (c-number) function: (1) neutral scalar bosons interacting with a linear source; (2) neutral scalar bosons interacting with a mass-like perturbation; (3) massive photons interacting with an classical current; (4) massless photons interacting with an classical current. (5) charged scalar bosons interacting with an electromagnetic potential; (6) Dirac fermions interacting with an electromagnetic potential.
Comments: revised version, major additions: discussion of the CPT Theorem, fermions interacting with variable mass, derivation of the Sucher formula; 9 figures
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Left-Ideals, Dirac Fermions and SU(2)-Flavour
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