Anomalous Violation of Conservation Laws in Minkowski Space

Details Anomalous Violation of Conservation Laws in Minkowski Space Anomalous Violation of Conservation Laws in Minkowski Space

1994-10-30

arxiv.org/abs/hep-ph/9410407v1

Nucl.Phys. B446 (1995) 35-64

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pgs., LaTeX with optional PicTex figures, JHU-TIPAC-940017, HUTP-A0/03

Scientific paper

10.1016/0550-3213(95)00247-P

We consider the evolution of quantum fermi fields in Minkowski gauge field backgrounds. Our motivation is the study of anomalous fermion number violating processes. We derive selection rules for fermion scattering amplitudes which relate the violation of fermionic charge to the change in winding between early and late times of the vacuum part of the gauge field. We find that the amount of fermion number violation is always integer, even when the topological charge of the gauge field is fractional. As an explicit example, we apply our results to spherically symmetric Minkowski solutions.

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