Continuous regularizations in strong coupling expansions from a generalized inverse propagator method
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Abstract
A strong coupling expansion is derived in terms of a generalized inverse propagator and is used to construct a regularization scheme which, for some regulators, differs from the canonical one. In particular, the Gaussian cut-off is shown to induce unbiased results, in contrast to a previous analysis using this regulator in the standard way. Several continuous and discrete regulations are then compared through a numerical example which suggests their equivalence.
Keywords
Field Theory Elementary Particle Quantum Field Theory Strong Coupling Previous Analysis
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