https://doi.org/10.1140/epjc/s10052-013-2689-y
Regular Article - Theoretical Physics
Aspects of the derivative coupling model in four dimensions
1
Department of Physics, University of Basel, 4056, Basel, Switzerland
2
Paul Scherrer Institute, 5232, Villigen PSI, Switzerland
* e-mail: andreas.aste@unibas.ch
Received:
9
July
2013
Accepted:
5
December
2013
Published online:
23
January
2014
A concise discussion of a 
-dimensional derivative coupling model, in which a massive Dirac field couples to the four-gradient of a massless scalar field, is given in order to elucidate the role of different concepts in quantum field theory like the regularization of quantum fields as operator-valued distributions, correlation distributions, locality, causality, and field operator gauge transformations.
© The Author(s), 2014
