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The standard model and its generalizations in the Epstein-Glaser approach to renormalization theory: II. The fermion sector and the axial anomaly

D R Grigore

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We complete our study of non-Abelian gauge theories in the framework of the Epstein-Glaser approach to renormalization theory including in the model an arbitrary number of Dirac fermions. We consider the consistency of the model up to the third order of the perturbation theory. In the second order we obtain pure group theoretical relations expressing a representation property of the numerical coefficients appearing in the left- and right-handed components of the interaction, Lagrangian. In the third order of the perturbation theory we obtain the the condition of cancellation of the axial anomaly.


PACS

11.15.-q Gauge field theories

05.30.Fk Fermion systems and electron gas

11.10.Gh Renormalization

MSC

81T13 Yang-Mills and other gauge theories (See also 53C07, 58E15)

Subjects

Quantum gases, liquids and solids

Statistical physics and nonlinear systems

Particle physics and field theory

Dates

Issue 26 (6 July 2001)

Received 17 October 2000, in final form 16 May 2001

Published 22 June 2001



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