Abstract
The addition of certain nonrenormalizable terms to the usual action density of a free scalar field leads to nonrenormalizable theories whose exact Euclidian and Minkowskian Green’s functions are less singular than those of the free theory. In some cases, they are finite. One may use lattice methods to extract physical information from these less singular, nonrenormalizable theories.
- Received 11 December 2012
DOI:https://doi.org/10.1103/PhysRevD.87.065024
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